0.120

New System Drivers Supported (in no particular order):
------------------------------------------------------
- SuperGrafx [Wilbert Pol]
- Mephisto 8 Bit MM IV, MM V , Rebel 5. [Dirk Verwiebe]
- Mephisto 16/32 Bit Glasgow, Dallas, Dallas 32, Roma 32,Amsterdam. [Dirk Verwiebe]


System Driver Changes:
----------------------
- [ATARI] Fixed joystick regression introduced in 0.116.  (bug #1365) [Nate
  Woods]

- [COCO3] Fixed a regression in VHD handling.  (bug #1383) [Nate Woods]

- [PCE] Added support for Populous on-cart RAM.  [Wilbert Pol]

- [PCE] Added preliminary emulation of the CD-ROM interface.  [Wilbert Pol]

- [X68000] Changed to use common 68901 MFP code.  [Barry Rodewald]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.120.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed multisession crash with the new menu selector.  (bug #1328) [Nate
  Woods]

- Changed the reset done when a cartridge is changed from a soft reset to a
  hard reset.  [Nate Woods]

- [Messtest] Added selectable bios support.  (bug #1392) [Nate Woods]



0.119

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Atari STe (not working) [Curt Coder]
- Atari Mega STe (not working) [Curt Coder]
- Matra & Hachette Alice [Dirk Best]



System Driver Changes:
----------------------
- [3DO] Protection fixes.  [Ernesto Corvi]

- [AMIGA] Added CD-ROM and cartridge support, marked as working but with
  imperfect graphics, added CDDA audio.  Bug fix to FDC.  [Ernesto Corvi]

- [AMIGA] Made battery backed-up RTC support configurable.  [Dirk Best]

- [AMSTRAD] Palette fix.  [Barry Rodewald]

- [APPLE2GS] Fixed raster interrupts and scanline counter registers to fire
  at the proper times.  Mouse pointer is no longer flickery in GUI apps and
  some border effects work in the FTA XMAS DEMO.  [R. Belmont]

- [A2600] Added automatic input device selection.  [Cowering & Wilbert Pol]

- [C64] Added partial T64 tape image loading support.  [Pugsy]

- [CPCPLUS] Fixed palette regression from 0.106.  [Barry Rodewald]

- [MC10] Added driver for the Matra & Hachette Alice, fixed
  keyboard inputs, removed some dead code and ran srcclean.exe on the
  driver files.  [Dirk Best]

- [MK1] Fixed interrupt issues and re-enabled driver.  [Wilbert Pol]

- [NES] Improved mapper 82, added support for mapper 140.  [Heretical_One]

- [PC1251, PC1350, PC1401, PC1403] Fixed background regression introduced in
  0.107.  (bug #1338) [Nate Woods]

- [PCE] Fixed endian issues and regression from 0.106. (bug #1143)  [Wilbert Pol]

- [PCE] Fixed several graphics issues. Added support for Street Fighter II
  mapper.  [Wilbert Pol]

- [PC88] Fixed regression from 0.112.  [R. Belmont]

- [X68000] Supported more BIOSes, sprite fixes, DIM image fixes, made SRAM
  executable and added an hsync timer.  Implemented writing to the MFP
  interrupt pending registers.  [Barry Rodewald]



User Interface Changes:
-----------------------
- [Windows] Created a maximum speed feature, allowing manual control of the
  emulation speed.  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.119.  This incorporates all features of the
  update to this core.  [MAME team]



0.118

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amiga 1000 PAL-OCS [Ernesto Corvi]
- Atari ST (not working) [Curt Coder]
- Atari Mega ST (not working) [Curt Coder]
- Sega Dreamcast (not working)  [R. Belmont]



System Driver Changes:
----------------------
- [A2600] Fixed behavior of missile positioning outside active
  scanline. (bug #1204)  [Wilbert Pol]

- [A2600] Added support for hardware oddity with certain NUSIZx
  player size updates. (bug #1231)  [Wilbert Pol]

- [A2600] Fixed player-missile reset behavior. (bug #1310)
  [Wilbert Pol]

- [A2600] Improved SuperCharger support. (bugs #1232 & #1313)  [Wilbert Pol]

- [A2600] Added support for 32in1 mapper.  [Wilbert Pol]

- [AIM65] Added natural keyboard support.  [Dirk Best]

- [AIM65] Started to rewrite the driver. For now, the display emulation has
  been completely rewritten and artwork has been added. Also, configurable
  RAM sizes have been added and the system was converted to a screenless
  system.  [Dirk Best]

- [AIM65] Rewrote keyboard emulation, it now behaves like the real hardware
  and the code is much cleaner.  [Dirk Best]

- [AIM65] Updated the driver to use cartridges instead of hard-coded ROMs.
  This means you can now use the Forth and PL/65 ROMs.  [Dirk Best] 

- [AMIGA] RTC support, added buffered keyboard support, properly implemented
  a fix for the slow-memory detection bug in Kickstart 1.2.  [Ernesto Corvi]

- [CDTV] Added NVRAM support.  [Ernesto Corvi]

- [COCO] Fixed PIA regression that prevented OS-9 level 1 from working.  (bug
  #1314) [Nate Woods]

- [COCO] Fixed writing when extending the lengths of a VHD file.  (bug #1320)
  [Nate Woods]
  
- [COCO3] Fixed bug in how the Coco 3 GIME performed a soft reset.  [Nate
  Woods]

- [GAMEBOY] Fixed hard reset from crashing the driver.  (bug #1138) [Wilbert Pol]

- [SMS/GG] Updated sms drivers to use the SMSIII sound core. Updated gamegear
  drivers to use the GAMEGEAR sound core.  (bug #1272)

- [SMS/GG] Made sure an interrupt is triggered when the 'trigger vint' bit of
  VDP register gets set and the VINT bit of the status register is set.  (bug
  #1162) [Wilbert Pol]

- [SMS/GG] Fixed video code to prevent the video code from crashing during
  a hard reset.  (bug #1304) [Wilbert Pol]

- [SMS] Added support for Sega Rapid Fire Unit.  (bug #1317) [Wilbert Pol]

- [SMS] Added support for Sega Paddle Controller.  (part of bug #1318)
  [Wilbert Pol]

- [SMS] Added support for Sega Sports Pad.  (bug #1316) [Wilbert Pol]

- [THOMSON] Fixed regressions introduced with 6821 changes.  [Antoine Mine]

- [THOMSON] Fixed TO8/TO9+ ram bank handler (fixes BASIC 1.0 bug).  [Antoine
  Mine]

- [THOMSON] Added support for MC6843-based CD 90-015 floppy controller (5"
  1/4 single density)  [Antoine Mine]
  
- [THOMSON] Added support for TO8/TO9/TO9+ external floppy controllers.
  [Antoine Mine]

- [THOMSON] Reworked memory handling and added support for RAM size
  configuration (w, w/o RAM extension).  [Antoine Mine]
  
- [X68K] Added support for the Ricoh RP5C15 RTC, a few more memory size
  options, and the .2HD file extension for disk images.  [Barry Rodewald]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.118.  This incorporates all features of the
  update to this core.  [MAME team]

- Removed use of helper macros to declare input ports.  [Nate Woods]

- Generic emulation of the DL1416 "4-Digit 16-Segment Alphanumeric Intelligent
  Display" device has been added. Currently supported is the DL1416T and
  partially the DL1416B. This kind of display is used by the Rockwell AIM 65.
    [Dirk Best]



0.117

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Data General/One (not working) (Joe)



System Driver Changes:
----------------------
- [A2600] Add auto-banking detection for all known carts [Cowering]

- [A2600] Add auto-controller detection for INDY500, KIDVID,
  COMPUMATE, BOOSTERGRIP and other special controllers [Cowering]  

- [A2600] Improved sound poly generation. Improved handling of sound
  mode POLY5_DIV3.  [Wilbert Pol]

- [A2600] Fixed reset behavior.  [Wilbert Pol]

- [A2600] Added partial DPC support.  [Wilbert Pol]

- [APPLE2GS] Line-by-line video engine.  Some border effects almost 
  work, and the CPU requirements are now lower.  [R. Belmont]

- [AIM65, SYM1] Updated drivers to use the MAME 6532 RIOT implementation. Also
  cleaned the AIM65 machine driver and ran srcclean.exe on the files. [Dirk
  Best]

- [DGNBETA] Fixed up for new 6821PIA behavior, machine will now boot again.
  (bug #1309) [Phill Harvey-Smith]

- [JAGUAR] Added the .j64 file extension.  [Justin Kerk]

- [NASCOM] Unified drivers using selectable BIOSes.  [Fabio Priuli]

- [NC100] Unified drivers using selectable BIOSes.  [Fabio Priuli]

- [NC100] Fixed assertion. (bug #1305)  [Nate Woods]

- [SVI328] Unified drivers using selectable BIOSes.  [Fabio Priuli]

- [X68000] Fix to mark tilemaps as dirty when written to.  [Barry Rodewald]

- [ZX81] Unified drivers using selectable BIOSes.  [Fabio Priuli]



User Interface Changes:
-----------------------
- Fixed changing of drives within the file manager.  (bug #1264) [Oliver
  Stoeneberg]
  
- Removed usage of OS working directories within the file manager.  [Oliver
  Stoeneberg]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.117.  This incorporates all features of the
  update to this core.  [MAME team]

- Changed BBC, Coleco, MTX, Sord, and Tutor drivers to use the SN76489 or
  SN76489A sound chips as appropriate instead of the SN76496.  [Justin Kerk]
  
- Various 64-bit fixes.  [Oliver Stoeneberg]

- Converted some timer_*() calls to mame_timer_*().  [Oliver Stoeneberg]

- Changed devices_allocate() to not use auto_malloc(); a consequence is that
  a devices_free() call is now necessary.  (bug #1293) [Nate Woods]

- Removed MESS implementation of the 6532 RIOT because we are now using the
  implementation by MAME. [Dirk Best]



0.116

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Atari 2600 PAL [Wilbert Pol]
- Sega SG-1000 [Curt Coder]
- Sega SG-1000 Mark II [Curt Coder]
- Sega SC-3000 [Curt Coder]
- Sega SC-3000/Super Control Station SF-7000 [Curt Coder]
- Texas Instruments TI-82 (not working) [Curt Coder]
- Texas Instruments TI-83 (not working) [Curt Coder]
- Texas Instruments TI-83 Plus (not working) [Curt Coder]
- VTech CreatiVision [Curt Coder]
- Samsung Gam*Boy II [Wilbert Pol]



System Driver Changes:
----------------------
- [A2600] Updated delay when writing to the playfield registers
  (bug #389, partially fixes bug #1152).  [Wilbert Pol]

- [A2600] Updated how RESPx/NUSIZx combinations are handled
  (partially fixes bug #1152).  [Wilbert Pol]

- [A2600] Added support for handling hardware oddity with writes
  to HMMx when the HMOVE timer is about to expire (bug #391).
  [Wilbert Pol]

- [A2600] Changed start up bank for 16KB cartridges (partially
  fixed bug #1170).  [Wilbert Pol]

- [A2600] Recoded TIA to support MDRV_SCREEN_RAW_PARAMS and
  adjusted screen sizes (partially fixes bug #1170).  [Wilbert Pol]

- [A2600] Updated playfield reflect bit to only have effect when
  set before pixel 80.  (bug #1174) [Wilbert Pol]

- [A2600] Paddles no longer auto-center.  Set default keys for
  player 4. (bug #1176 and bug #1167)  Adjusted Driving Controller
  sensitivity, and fixed player two Booster Grip. [Christopher Stone]

- [A2600] Fixed delay behavior when resetting BL/M0/M1 position during
  HMOVE period.  [Wilbert Pol]

- [A2600] Corrected HMOVE behavior when initiated outside hblank.
  [Wilbert Pol]

- [A2600] Improved positioning of all graphics when position counters
  are reset in the extended HBlank period during a HMOVE. (bug #1184)
  [Wilbert Pol]

- [A2600] HMOVE triggered on the last possible CPU cycle also triggers
  a delay of the end of HBlank. (bug #1222) [Wilbert Pol]

- [A2600] Rewrote player graphics drawing and handling. [Wilbert Pol]

- [A2600] Added SuperCharger support. [Wilbert Pol]

- [AMIGA] Updated the Amiga driver to output the power and drive LED status
  to the artwork system. [Dirk Best]

- [COCO/DRAGON] Cartridge slot rearchitecture.  [Nate Woods]

- [FUNVISION] Driver is now working and fully playable. [Curt Coder]

- [VIP] Fixed the RUN/RESET switch to work like the original. [Curt Coder]

- [ABC80] Fixed the keyboard, although scanning is very slow. [Curt Coder]



User Interface Changes:
-----------------------
- Fixed bug mounting files in the old UI.  (bug #1149) [Oliver Stoeneberg]

- [Windows GUI] Fixed a couple of static text fields.  (bug #1073) [Oliver
  Stoeneberg]

- [Windows GUI] Fixed a crash when adding a system-specific software
  directory.  (bug #1196) [Oliver Stoeneberg]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.116.  This incorporates all features of the
  update to this core.  [MAME team]

- WD17xx cleanups.  [Nate Woods]

- Fixed a memory leak.  (bug #1019) [Oliver Stoeneberg]

- Massive update to entire sysinfo.dat file. [Fabio Priuli]

- Added many SHA1 hashes. [Fabio Priuli]

- Added some missing TESTDRIVERs to messdriv.c that were only specified in the
  driver source files.  [Oliver Stoeneberg]

- [Windows] UNICODE=1 fixes.  [Oliver Stoeneberg]



0.115

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Mac 128k, Mac 512k (not working) [R. Belmont]
- Telmac 2000 (not working) [Curt Coder]
- X68000 [Barry Rodewald]
- Pokemon mini (not working) [Wilbert Pol]
- 3DO (not working) [Wilbert Pol]



System Driver Changes:
----------------------
- [AMSTRAD] Fixed sprite order.  [Barry Rodewald]

- [MAC512/MACPLUS] Fixed video timing, booting from SCSI harddisk works 
  once again. [R. Belmont]

- [SATURN] Preliminary CDROM, backup, & input support.  Fixed sound.  Still
  marked NOT_WORKING as only a few games do anything. [R. Belmont]

- [STUDIO2/VIP] System is now working and playable. (bug #1098) [Curt Coder]

- [VTECH1] Fixed snapshot loading on big-endian systems and added correct
  interrupt emulation. [Dirk Best]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.115.  This incorporates all features of the
  update to this core.  [MAME team]

- Added support for noting default RAM options in -listxml.  (bug #1147) [Nate
  Woods]

- [Windows] Factored out handling of standard file dialogs, to centralize
  handling of UTF-8 conversions and compatibility with old versions of
  Windows. [Nate Woods]

- Fixed border colors for systems that use the MC6847 video chip and a
  custom palette. [Dirk Best]



0.114

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Sega Master System Store Display (not working) [Wilbert Pol]
- Apple IIgs (ROM00) [R. Belmont]
- Toshiba HX-10  [incog nito]



System Driver Changes:
----------------------
- [APPLE2GS] Major fixes to the quality and accuracy of the ES5503 
  sound emulation. [R. Belmont]

- [APPLE2GS] First pass at proper raster timing.  FTA XMAS DEMO now runs,
  no border f/x yet though.  [R. Belmont]

- [APPLE2GS] Fixed scanline interrupts to work properly.  Fixed Cavern 
  Cobra, FTA Modulae demo, probably more.  (bug #673)  [R. Belmont]

- [APPLE2GS, SNES] Fixed some 65816 core bugs.  (bug #661) [R. Belmont]

- [COCO] Fixed PIA misconfiguration.  (bug #1115) [tim lindner]

- [COCO] Fixed Lightgun emulation. [tim lindner]

- [COCO] Implemented MUX switching delay.  (bug #655) [tim lindner]

- [FAMICOM/FAMITWIN] Fixed Disk System, marked working now.
  (bug #1101) [R. Belmont]

- [GAMEGEAR] Added SMS compatibility mode.  [Wilbert Pol]

- [GENESIS/MEGADRIVE] New emulation engine from HazeMD, improves
  compatibility and accuracy plus supports the 6-button pad and
  the Super Street Fighter 2 mapper.  [R. Belmont, David Haywood]

- [GENEVE] Fixed assertion failure on exit.  (bug #1136) [Nate Woods]

- [MSX] Fixed MSX visible area.  [MJSTY]

- [ODYSSEY2] Major update: banked carts, drawing, and hardware collision
  detection now all work much better.  [telengard]

- [SMS] Drivers have been split up to support specific hardware versions:
  sms and smspal still exist; smsj21 has been renamed to smsj; sms1,
  sms1pal, and sg1000m3 have been added. Support for the prototype bios has
  also been added  [Wilbert Pol]

- [THOMSON] Switch 6850 ACIA implementations to use the MAME version, and
  added natural keyboard support. [Antoine Mine]

- [TI99_4X] Fixed assertion failure.  (bug #1129) [Nate Woods]

- [TI99_8] Fixed assertion failure on exit.  (bug #1137) [Nate Woods]



User Interface Changes:
-----------------------
- [Windows GUI] Fixed hash entry loading.  (bug #1128) [Nate Woods]

- [Windows GUI] Added missing screen and controller tabs.  (bug #1134) [Oliver
  Stoeneberg]



Imgtool Changes:
----------------
- Added the ability for modules to "warn" the core of inconsistencies.  These
  warnings will cause failues in Imgtool test cases.  [Nate Woods]

- [OS9] Fixed some bugs that could cause corruption on OS-9 disk images.  (bug
  #1122 [tim lindner, Nate Woods]

- [OS9] Put will now use free entries in the directory file before expanding
  it.  (bug #1125) [tim lindner]



Source Changes:
----------------
- The core is based on MAME 0.114.  This incorporates all features of the
  update to this core.  [MAME team]

- Moved per-image working directory handling into the MESS core.  [Nate Woods]

- Fixed NVRAM folder creation for battery backup.  (bug #1120) [Nate Woods]

- Fixed a bug that could cause multiple file extensions to be dropped for
  devices on certain drivers in both MESS and Imgtool.  (bug #1095)  [Nate
  Woods]

- [Windows] Fixed deadlock.  (bug #1140) [Oliver Stoeneberg]



0.113

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Sega Saturn (USA)  (not working) [R. Belmont]
- Sega Saturn (PAL)  (not working) [R. Belmont]
- JVC V-Saturn  (not working) [R. Belmont]
- Hitachi HiSaturn  (not working) [R. Belmont]
- Sega Gamegear (Japan) [Wilbert Pol]



System Driver Changes:
----------------------
- [A7800] Fixed regression introduced in 0.112.  (bug #1064) [Dirk Best]

- [CGENIE] Changed some variables to initialize at startup.  (bug #1055) [Nate
  Woods]

- [COCO3] Fixed a subtle GIME timer problem.  (bug #1065) [Nate Woods]

- [COUPE] Fixed regression introduced in 0.112.  (bug #1062) [Nate Woods]

- [GAMEBOY] Rewrote video hardware timing. Rewrote rendering code to support
  mid-scanline effects. [Wilbert Pol]

- [IP22] Fixed regression introduced in 0.112.  (bug #1045) [Nate Woods]

- [MPF1] Fixed regression introduced in 0.112.  (bug #1077) [Nate Woods]

- [N64] Fixed start button mapping.  (bug #1050) [Justin Kerk]

- [SMS/GG] Improved PSG, FM, and CPU clock frequencies [Andre Cotrim, Wilbert Pol]
           Fixed triggering of the VBlank interrupt.  (bug #1097) [Wilbert Pol]
           Added support for zoomed sprites and fixed VDP control/data port
           behaviour.  (bug #794) [Wilbert Pol]

- [SORDM5] Fixed regression introduced in 0.112.  (bug #1082) [Nate Woods]

- [SVISION] Many improvements and fixes.  [PeT]

- [VECTREX] Fixed inadvertent marking as a raster driver.  (bug #1099) [Nate Woods]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
- [Windows] Fixed problem opening and deleting files contained within
  directories.  (bug #1066) [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.113.  This incorporates all features of the
  update to this core.  [MAME team]
  
- [Windows] Fixed a crash that can happen when doing a hard reset when devices
  are mounted.  (bugs #1036, #1084) [Nate Woods]

- [Messtest] Added the ability to script hard resets.  [Nate Woods]



0.112

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amiga 500 NTSC (former "amiga" driver) [Ernesto Corvi]
- Amiga 500 PAL [Ernesto Corvi]
- Amiga 1000 NTSC [Ernesto Corvi]
- Apple IIj+ [Nick Westgate]



System Driver Changes:
----------------------
- [AMIGA] Fixed regressions; now boots properly.  Also added keyboard support,
  512KB "slow-ram" support, preliminary support for Datel Action Replay 1 and
  many floppy controller fixes.  Added Chip RAM mirroring and Extended ADF 1
  disk format.  [Ernesto Corvi]

- [APPLE2] Fixed crash when ramsize was set to 4k.  (bug #1048) [Nate Woods]

- [ATARI] Fixed hang on reset bug.  (bug #982) [Nate Woods]

- [AVIGO] Removed redundant artwork in avigo.zip.  (bug #1043) [Nate Woods]

- [C16] Fixed crash when ramsize was set to less than 64k.  (bug #1049) [Nate
  Woods]

- [COCO] Fixed crash when ramsize was set to less than 32k.  (bug #993) [Nate
  Woods]

- [COCO] Fixed hi-res interface regression introduced in 0.105.  Also cleaned
  up how input devices work.  (bug #1025) [Nate Woods]

- [COCO] Fixed regression in one-bit sound.  (bug #1041) [Nate Woods]

- [DGNBETA] More fully implemented certain graphics modes.  [Phill
  Harvey-Smith]
  
- [GAMEBOY] Updated aspect ratios for gameboy, gbpocket, and gbcolor to 10:9,
  supergb to 4:3.  [Belegdol]

- [IP204415] Fixed driver.  (bug #986) [Nate Woods]

- [MK2] Updated to use the new artwork system.  [Justin Kerk]

- [MSX2] Fixed MSX2 PAL framerates.  (bug #963) [MJSTY]

- [N64] Added the .bin file extension.  (bug #1016) [Nate Woods]

- [SATURN] Saturn driver back up to date so it starts up and shows the boot
  screens properly.  [R. Belmont]

- [THOMSON] Fixed device name that clashed with "cc" option on main MESS.  (bug
  #994) [Antoine Mine]

- [THOMSON] Improved video and mouse emulation, and all machines now use the
  Model 2 Game Extension.  [Antoine Mine]

- [TRS80] Fixed TRS-80 drivers.  [Robbert, R. Belmont]

- [VTECH1] Fixed memory leak.  (bug #1021) [Nate Woods]

- [VTECH1] Rewrote memory and input handling, added support for the 4MB
  extension.  Also changed BASICV2.1 loading and corrected Laser 310 clock
  frequency.  [Dirk Best]



User Interface Changes:
-----------------------
- Changed -biospath command line option to be -rompath.  -biospath still works
  but it is secondary and configuration files created by MESS will use
  -rompath.  Also removed -softwarepath, paths passed on the command line will
  now be absolute.  The concept of software paths will continue within the
  MESS GUI.  [Nate Woods]

- [Windows] Fixed bug that could cause the loss of mouse capture when toggling
  the menu bar.  (bug #977) [Nate Woods]

- [Windows] Fixed regression when saving and loading save states.  (bug #1035)
  [Nate Woods]

- [Windows] Fixed device create bugs that could cause file extensions to not
  be specified by default or crashes.  (bug #1040) [Nate Woods]



Imgtool Changes:
----------------
- Fixed a bug that could cause crashes when opening ZIP files.  [Nate Woods]

- Updated help text.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.112.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed certain crashes that occured on hard reset.  (bug #988) [Nate Woods]

- Fixed bug that caused a crash when a device was passed an empty string at
  the command line.  (bug #991) [Nate Woods]

- Fixed error reporting when startup images are not properly loaded up.  (bug
  #928, #990, #992) [Nate Woods]

- Fixed crash when unmounting images in the old UI file manager.  (bug #998)
  [Nate Woods]

- Fixed various memory leaks in debug builds when the debugger is not enabled.
  (bug #1018) [Nate Woods]

- Fixed hash file processing.  [MJSTY]

- Fixed problem creating printer output.  (bug #1039) [Nate Woods]

- Removed redundant checks for tilemap allocation failute.  [Dirk Best]

- [Messtest] Now displays emulation error output.  [Nate Woods]

- [Windows] Fixed several memory leaks in the Windows code.  [Nate woods]

- [Windows] COnsolidated some MESS specific OSD code into the MAME OSD core
  code and removed redundant directory functions.  [Nate Woods]



0.111

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [A7800] Updated palette.  [Nabuko78]

- [AMSTRAD] Minor floppy disk cleanup.  [Nate Woods]

- [COCO] Implemented Diecom Light Gun Adapter.  (bug #971) [Tim Lindner]

- [DGNBETA] Fixed regressions introduced in 0.110.  (bug #970) [Phill
  Harvey-Smith]

- [SVISION] Fixed the aspect ratio.  [Peter Trauner]



User Interface Changes:
-----------------------
(none)
  


Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.111.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed opening up specific images within zip files that contain multiple
  images.  (bug #973) [Nate Woods]
  
- Removed a stub disassembler from the v30mz core, as per MAME conventions.
  [Nate Woods]

- Renamed the "hash_directory" option to "hashpath".  [Aaron Giles]

- Fixed regression introduced in 0.110 that caused battery backed NVRAM files
  to not be written unless the file already existed.  (bug #974) [Nate Woods]

- Added an SP0256 sound core.  [tim lindner]



0.110

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Dragon 64 + Compusense Plus addon  [Phill Harvey-Smith]



System Driver Changes:
----------------------
- [APPLE2] Fixed stray C06x reads. [Chad]

- [APPLE2] Fixed write support on 5.25" drives under certain situations.
  [Chad]

- [ATVGA] Fixed lockups.  [Barry Rodewald]

- [ATVGA] Fixed Video Display Disable bit and 256 color VGA for programs that
  expect linear video memory, and implemented the Line Compare Register.
  [Barry Rodewald]

- [CPCPLUS] Changed FPS from 50 to 50.080128205128205.  [Barry Rodewald]
  
- [CPSCHNGR] Fixed regression introduced in 0.109.  [Dr. Zer0]

- [DGNBETA] Fixed regression in disk code that prevented booting and a keyboard
  error.  Rewrote the video code.  [Phill Harvey-Smith]

- [GBCOLOR] Added double speed mode support.  (bug #300) [Wilbert Pol]

- [MPF1] New artwork.  (bug #964) [Giel van Schijndel]

- [PC1512/1640] Fixed Amstrad keyboard.  [Andrew Jenner]

- [SPECTRUM] Fixed snapshot loading regression introduced in 0.105.  [Chad]

- [THOMSON] Added support for speech synthesis with the Phillips MEA 8000
  chipset.  [Antoine Mine]



User Interface Changes:
-----------------------
- Changed base help message, to reflect the actual command line options
  available.  [Nate Woods]

- [Windows] Fixed customize input dialogs.  [Nate Woods]

- [Windows GUI] Fixed a bug that could cause changes in the device view to
  not be reflected in the picker.  [Nate Woods]
  


Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.110.  This incorporates all features of the
  update to this core.  [MAME team]

- All image file accessing is now done through image.h, rather than using
  mame_file objects.  [Nate Woods]

- Introduced an image_ptr() call, which returns a pointer to all image data
  valid for the lifetime of the image.  [Nate Woods]

- Added a specialized exit code for MESS-related initialization.  (bug #931)
  [Nate Woods]

- Added the ability to disable tests in Messtest.  [Nate Woods]

- Real time clocks now retrieve default times from the core.  [Nate Woods]

- I286 fixes.  [Barry Rodewald]

- Changed image_battery_load() and image_battery_save() to not return error
  codes; clients of these functions should not act differently if these files
  can't be loaded or saved.  [Nate Woods]



0.109

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Apple IIc (ROM revision 4)  (not working) [Nick Westgate]
- Tano Dragon 64  [Phill Harvey-Smith]



System Driver Changes:
----------------------
- [C64] Fixed issues found by the TRAP4, TRAP5, and TRAP6 tests of the c64
  test suite.  (bug #952) [Wilbert Pol]

- [CBM] Fixed SID code to remove potential divide by zero issues.  (bug #936)
  [Nate Woods]

- [COCO3] Fixed a bug that could cause hi-res text and graphics to not display
  properly when RGB is enabled.  (bug #938) [Nate Woods]

- [DRAGON] Fixed side specification on floppy disk controller.  [Phill
  Harvey-Smith]

- [GAMEBOY] Fixed battery backed RAM saving.  (bug #948) [Dirk Best, Wilbert
  Pol]

- [TELMAC] Fixed crash when running without sound.  (bug #922) [Nate Woods]

- [THOMSON] Improved video emulation, floppy disk support, preliminary network
  extension support, and LEDs.  [Antoine Mine]

- [THOMSON] Added CRCs to the BIOS declarations.  (bug #942) [Antoine Mine]

- [VIC20] Fixed bug that caused the driver to fail when sound was disabled.
  (bug #930) [Nate Woods]



User Interface Changes:
-----------------------
- [Windows] Fixed a bug that caused the Pause menu item to always appear as
  checked.  (bug #926) [Nate Woods]

- [Windows GUI] Fixed a bug that caused the GUI to fumble on paths with spaces
  in them.  (bug #918) [Nate Woods]

- [Windows GUI] The GUI will no longer process software entries when an
  emulation is running.  (bug #940) [Nate Woods]



Imgtool Changes:
----------------
- Fixed the listfilters command.  (bug #945) [Tim Lindner]

- Added Thomson support.  [Antoine Mine]

- [Windows] Modified wimgtool so that it will function properly if it cannot
  locate an icon for a given file extension.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.109.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed improper use of options.sample_rate in drivers to use
  Machine->sample_rate.  (bug #939)  [Oliver Stoeneberg]

- Build system cleanups.  (bug #929)  [Nate Woods]
  
- [Windows] Fixed incorrect "Illegal integer value for threads" error.  (bug
  #920) [Nate Woods]



0.108

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Thomson computer family  [Antoine Mine]



System Driver Changes:
----------------------
- [C128] Fixed regression introduced in 0.106.  (bug #895) [Nate Woods]

- [COMPIS] Fixed regression introduced in 0.106.  (bug #909) [Nate Woods]

- [CPCPLUS] Added sound DMA emulation, improved the soft scroll registers and
  various other little things to make more games actually work.  [Barry
  Rodewald]
  
- [EP128] Fixed regression introduced in 0.106.  (bug #908) [Nate Woods]

- [NES] Various improvements, such as timing and PPU improvements.  (bug #816)
  [Brad Oliver]
  
- [SPECTRUM] Added TZX/TAP cassette format support.  [Wilbert Pol]



User Interface Changes:
-----------------------
- Fixed UI toggle message to work reasonably with the new renderer/UI system.
  [R. Belmont]



Imgtool Changes:
----------------
- More refactoring; FAT partition support now internally separate from floppy
  and hard drive code.  PC hard drive module now named "pc_chd" and not
  explicitly tied to FAT.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.108.  This incorporates all features of the
  update to this core.  [MAME team]

- Made cassette .wav file loading slightly more tolerant.  [Nate Woods]



0.107

NOTE: This is the first full release of MESS with the new rendering
system. Before freaking out that things don't work the way you
expected, please read the docs/newvideo.txt file that gives some
suggestions for how to set up your base configuration. If you still
encounter issues, then run your system with the -v option and post
about your problem at http://www.mess.org



New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [AMSTRAD] Preliminary CPC+ support, and support for .cpr cartridge images.
  [Barry Rodewald]

- [ATOM] Fixed regression introduced in 0.106.  (bug #894) [Nate Woods]

- [ATOMEB] Fixed regression introduced in 0.106.  (bug #898) [Nate Woods]

- [BBCA] Fixed regression introduced in 0.106.  (bug #893) [Nate Woods]

- [COCO] Fixed a subtle problem when creating DMK disk images.  (bug #864)
  [Nate Woods]

- [COCO3P] Fixed video.  (bug #886) [Nate Woods]

- [DGNBETA] Fixed regression introduced in 0.106.  (bug #896) [Nate Woods]

- [GAMEBOY] Fixed aspect ratio.  [Justin Kerk]

- [LVIV] Changed to use selectable BIOSes.  [incog]

- [MBEE] Fixed reset.  [Robbert, R. Belmont]

- [PC1350] Fixed regression introduced in 0.106.  (bug #900) [Nate Woods]

- [T1000HX] Fixed invisible text regression introduced in 0.106.  (bug #899)
  [Nate Woods]



User Interface Changes:
-----------------------
- Added a "System Information" menu item to the classic UI.  (bug #888) [Nate
  Woods]



Imgtool Changes:
----------------
- Major internal changes to how Imgtool modules are specified, and introduced
  a concept of partitions.  Partitions are not exposed to the UI yet.  Expect
  regressions.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.107.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed natural keyboard support for certain keys.  (bug #885) [Nate Woods]



0.106

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Atari 5200 (alt)  [incog]
- Bandai WonderSwan/WonderSwan Color [Wilbert Pol]
- CDTV  [Dirk Best]
- Sharp Famicom Twin  [incog]
- Tiger Game.com (not working yet) [Wilbert Pol]



System Driver Changes:
----------------------
- [AMIGA] Cleanups.  [Dirk Best]

- [CBM] Changed code to share 6526 CIA implementation with the one used by
  the Amiga in MAME.  [Nate Woods]

- [CGENIE] Implemented configurable RAM support.  [Nate Woods]

- [COCO] Fixed joystick regression introduced in 0.105.  (bug #876) [Nate Woods]

- [COCO] Complete rewrite of both M6847 and GIME video code; timing and
  performance enhancements.  [Nate Woods]

- [COCO] Changed joystick key assignments from arrow keys to numeric keypad,
  as well as added mouse button assignments.  [Nate Woods]

- [FAMICOM] Fixed disk system.  [Steve Leung]

- [N64] Properly recognizes .n64 file extension.  [Justin Kerk]

- [SMS] Changed to use selectable bioses.  [Wilbert Pol]



User Interface Changes:
-----------------------
- [Windows] Added a save state option that lets the user override existing 
  saves without a dialog, and save state as now prompts if the command would
  override the existing save.  [Nate Woods]

- [Windows GUI] Fixed "Skip warnings" regression in the GUI.  (bug #867) [Nate
  Woods]

- [Windows GUI] Fixed bug that caused problems selecting different images in
  the picker.  (bug #873) [Nate Woods]

- [Windows GUI] New icons and splash screen.  [incog]

- [Windows GUI] Fixed some general bugginess involving specifying images.
  (bug #866)  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.106.  This incorporates all features of the
  update to this core.  [MAME team]



0.105

New System Drivers Supported (in no particular order):
------------------------------------------------------
- AT 586 (not working yet) [Nate Woods]
- Nintendo N64 (not working yet) [Ville Linde]



System Driver Changes:
----------------------
- [990189V] Fixed crash when taking a screenshot.  (bug #714) [Oliver
  Stoeneberg, Nate Woods]

- [EUROPC] Fixed keyboard regression introduced in 0.104.  (bug #857) [Nate
  Woods]

- [EXIDY] Added cartridge support.  (bug #842) [Robert]

- [FAMICOM] Added hack to prevent crashing.  Marked as not working.  [Nate
  Woods]

- [MAC] Moved Mac video code off of videomap.c.  [Nate Woods]

- [MPF1] Added sound support and other enhancements.  [Giel van Schijndel]

- [MSX] Fixed a crash involving cartridge use.  (bug #841) [Nate Woods]

- [MSX] Fixed subtle memory corruption bug.  [R Belmont, Wilbert Pol]

- [PC] Fixed a crash involving certain types of CGA memory access.  (bug #859)
  [Nate Woods]

- [PC8801] Worked around a regression introduced in MESS 0.96.  (bug #759)
  [Nate Woods]

- [VTECH1] Added support for the 64k memory expansion, and cartridge support.
  [Dirk Best]



User Interface Changes:
-----------------------
- Fixed a file manager bug that prevented the last item from being selected. 
  [telengard]



Imgtool Changes:
----------------
- VZDOS images now supported.  [Dirk Best]

- The "dir" command will display "<DIR>" for directories.  [Nate Woods]

- [FAT] Now supports FAT file systems without an extended BIOS parameter
  block.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.105.  This incorporates all features of the
  update to this core.  [MAME team]

- Changed how devices work.  Device command line options are now on a per
  device basis, and now identify the index within a device.  Therefore, you
  now might invoke MESS like this:
  
	mess mysystem -flop1 foo.dsk -flop2 bar.dsk
	
  Also, drivers now have the ability to specify the string to be used for the
  command line option.  This allows multiple devices of the same type to be
  viable.  (bugs #711, #839) [Nate Woods]

- Fixed WD17XX side select option; this prevented some copy protection schemes
  from being properly emulated.  (bug #863) [Nate Woods]

- Fixed a bug that caused image creation to crash in certain situations.
  (bug #858) [Nate Woods]

- Eliminated the unknown and unused -listtext and -createdir command line
  options.  [Nate Woods]

- Cleaned up auto_malloc() calls.  [Oliver Stoeneberg]



0.104

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Exidy Sorcerer (diskless) [Robert]
- Sony Playstation (scph3000 J v1.1 01/22/95) [incog]
- Sony Playstation (scph3500 J v2.1 07/17/95) [incog]
- Turbo Grafix-16 [Rob Bohms]
- Acorn Electron [Wilbert Pol]



System Driver Changes:
----------------------
- [AT] Cleaned up A20 gating.  [Nate Woods]

- [COCO3] Fixed a timing bug in video rendering.  (bug #743) [Nate Woods]

- [PC] Fixed PC keyboard ESC char code (it is now 27; used to be 26).  [Nate
  Woods]

- [EXIDY] Fixed keyboard, printer and video speed.  Added natural keyboard
  support.  (bug #615) [Robert]

- [PCE] Various improvements, updated renderer and removed GAME_NOT_WORKING
  flag.  [Rob Bohms and Charles MacDonald]

- [VTECH1] Fixed key definitions.  (bug #835) [Robert]



User Interface Changes:
-----------------------
- [Windows] Fixed a bug that caused crashes if a dialog was presented, the
  emulation reset, and a subsequent dialog presented.  (bug #834) [Nate Woods]

- [Windows GUI] Fixed a bug that caused zip files where the file extension was
  not all lowercase to not be recognized as such.  (bug #831) [Oliver
  Stoeneberg]



Imgtool Changes:
----------------
- [OS9] Removed a limitation that prevented images from loading that have
  allocation bitmaps larger than 1024 bytes.  (bug #825) [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.104.  This incorporates all features of the
  update to this core.  [MAME team]

- Changed how devices are specified.  The new system resembles how MAME CPU
  and sound cores are specified.  [Nate Woods]

- Added a "input" command to the debugger.  [Nate Woods]

- Cleaned up natural keyboard code.  No longer have QUEUE_CHARS/ACCEPT_CHARS
  and CHARQUEUE_EMPTY; callbacks are now installed at runtime.  [Nate Woods]

- Fixed a file manager memory allocation bug.  [Brian Sturk]

- Moved MESS validity code into a separate file.  [Nate Woods]

- Enhanced error reporting when loading images.  (bug #827)  [Nate Woods]



0.103

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [ADVISION] Added sound support.  [Dan Boris]

- [AMIGA] Fixed regression introduced in MESS 0.102.  (bug #801) [Nate Woods]

- [APPLE2P] Fixed BIOS.  (bug #820) [Nick Westgate]

- [ARCADIA] Added support for 12k cartridges, fixed a buffer overrun and
  enhanced sound generation.  [Irving Gould]

- [AT486] Fixed regressions introduced in MESS 0.102.  [Nate Woods]

- [C128] Fixed regressions introduced in MESS 0.102.  [Nate Woods]

- [DGNBETA] Implemented MMU, keyboard and floppy support.  [Phill Harvey-Smith]

- [GAMEBOY] Fixed several games that did not loard properly.  (bug #116)
  [Wilbert Pol]

- [NES] PPU, palette reading, mapper and sprite handling enhancements and
  implemented some undocumented N2A03 opcodes. (bugs #810, #811) [Rob Bohms]

- [NES] Switched to use the MAME NES APU implementation.  [R. Belmont]

- [PCE] Added imperfect sound.  [Rob Bohms]

- [SGI] Added a harddisk to the ip22 systems.  [R. Belmont]

- [SNES] Fixed save RAM to store and save properly, improved memory mapping
  improved raster timing, added HIRQ support and better VIRQ support,
  improved joypad support, DSP-1 support (including all subtypes), Counter
  latching support, fixed OAM read/write.  [R. Belmont]
  


User Interface Changes:
-----------------------
- [Windows GUI] Fixed a bug that prevented column width changes in the
  software picker from being saved.  (bug #589) [Nate Woods]

- [Windows GUI] Fixed a bug that caused "ghost filenames" to be introduced
  when using images with spaces in the filename.  (bug #784) [Nate Woods]

- [Windows GUI] Fixed a bug that could cause clones to not be ran due to
  software settings "spilling" over onto the clones.  (bug #704) [Oliver
  Stoeneberg]  



Imgtool Changes:
----------------
- Implemented a feature that allows filters to qualify files, to see if they
  are appropriate for any given filter.  [Nate Woods]

- Updated Mac module; moved to floppy abstraction system, as well as support
  for directories and filters.  MFS disk image creation now works.  [Nate
  Woods]

- Added support for modules to specify specific for icons.  Enhanced the Mac
  module to support this feature.  [Nate Woods]

- [Imgtool] Changed the Imgtool "put" command to require a destination
  argument, like the UNIX "cp" command.  This is so that a directory argument
  can be properly specified.  [Nate Woods]

- [Imgtool] Added the ability to get and put the boot block, as if it was a
  file called "??BOOT??".  The FAT module has been enhanced to support this
  feature.  [Nate Woods]

- [Windows Imgtool] The insert file dialog will no longer let the user specify
  a file that does not exist (which was allowed, but eventually resulted in an
  error.)  Also, fixed a few cosmetic errors.  [Nate Woods]

- [Windows Imgtool] The disk title is now displayed on the title bar, if
  present.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.103.  This incorporates all features of the
  update to this core.  [MAME team]

- Changed generic cartridge loading so that a ROM_LOAD_CART declaration can
  be placed in a ROM_REGION.  This change makes cartridge loading be specified
  similar to BIOS loading, and makes things cleaner and more declarative.
  [Nate Woods]
 
- Makefile tweaks.  (bug #819) [Oliver Stoeneberg]
  
- Added mandatory attribute to the device tags on the -listxml data.  [Nate
  Woods]

- Pruned out some redundant PORT_NAME declarations.  [Justin Kerk]

- [Messtest] Added a trace command, to emit debug traces.  [Nate Woods]



0.102

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [A400/A400PAL/A800PAL] Fixed regressions introduced in MESS 0.83. (bug #748)
  [Nate Woods]
  
- [ABC802] Fixed crash.  (bug #763)  [Nate Woods]

- [C16] Implemented RAM configuration support.  [Nate Woods]

- [C65] Implemented RAM configuration support.  [Nate Woods]

- [CGENIE] Fixed regression introduced in MESS 0.96. (bug #752)  [Nate Woods]

- [COUPE] Fixed regression introduced in MESS 0.96. (bug #753)  [Nate Woods]

- [EXIDY] Fixed regression introduced in MESS 0.96. (bug #760)  [Nate Woods]

- [GG] Fixed regression introduced in MESS 0.95. (bug #705) [Wilbert Pol]

- [JUPITER] Fixed regression introduced in MESS 0.96. (bug #756)  [Nate Woods]

- [KCCOMP] Fixed regression introduced in MESS 0.87. (bug #749)  [Nate Woods]
  
- [LISA2] Fixed regression introduced in MESS 0.91.  (bug #757)  [Nate Woods]

- [MC10] Added multiple RAM configurations, and cleaned up driver.  [Nate
  Woods]

- [MTX512] Fixed regression introduced in 0.96.  (previous fix was not fully
  committed properly) [Gerco Ballintijn]

- [MTX512] Fixed BASIC loading routines.  (bugs #754, bug #769) [Gerco
  Ballintijn]

- [MTX512] Added stub calls for the MTX parallel printer port.  (bug #755)
  [Gerco Ballintijn]

- [MTX512] Fixed memory management.  (bug #770)  [Gerco Ballintijn]

- [MTX512] Added printer support.  (bug #774)  [Gerco Ballintijn]

- [NASCOM1] Fixed regression introduced in MESS 0.96. (bug #758)  [Nate Woods]

- [PET] Implemented RAM configuration support.  [Nate Woods]

- [SGI] Improved emulation of the system ASICs, improved Newport video
  emulation, improved WD33c93 SCSI emulation, preliminary sound.  All three
  systems in ip22.c now start up OK.  [R. Belmont, Ryan Holtz]

- [SMS] Various fixes.  (bugs #765, #766)  [Wilbert Pol]

- [SMS] Removed hacked drivers smsu13h and smse13h. [Wilbert Pol]

- [SPECTRUM] Fixed regression introduced in MESS 0.96. (bugs #726, #761)  [Nate
  Woods]

- [SVISION] Fixed regression on 32KB cartridges. (bug #776)  [Nate Woods]

- [VECTREX] Specified aspect ratio. (bug #777) [Nate Woods]

- [Z88] Fixed regression introduced in MESS 0.96. (bug #762)  [Nate Woods]

- [ZX] Implemented RAM configuration support.  [Nate Woods]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.102.  This incorporates all features of the
  update to this core.  [MAME team]

- Merged COMPX/CONSX into COMP/CONS as per the new convention in MAME.  [Nate
  Woods]

- Fixed crash when launching console games without required cartridges.  (bug
  #746) [Nate Woods]

- Added RAM configuration info to -listxml.  [Nate Woods]

- [Messtest] Now fully errors out when a blank screenshot is generated.  [Nate
  Woods]



0.101

New System Drivers Supported (in no particular order):
------------------------------------------------------
- AT 486 [Nate Woods]
- Spectravideo SVI-603 Coleco Game Adapter [Tomas Karlsson]



System Driver Changes:
----------------------
- [COCO3] Fixed assertion failure when using the zero/infinite scanlines video
  mode.  [Nate Woods]

- [MTX512] Fixed regression introduced in 0.96.  [Gerco Ballintijn]

- [SNES] SPC, APU and DSP bug fixes; sound now works in some games.
  [R Belmont]

- [SNES] Changed SNES default key mapping to make a bit more sense.
  [Nate Woods]



User Interface Changes:
-----------------------
- [Windows GUI] Fixed a regression that prevented sysinfo.dat from being
  properly recognized.  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.101.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed crashes when running deviceless systems. [Nate Woods]
  


0.100

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Macintosh SE [Nate Woods]



System Driver Changes:
----------------------
- [C128] Fixed regression introduced in 0.99.  [Nate Woods]

- [CONCEPT] Added HD support.  [Brett Wyer, Raphael Nabet]

- [MAC] Added SCSI HD and extended PRAM support.  [R. Belmont]



User Interface Changes:
-----------------------
- [Windows] Fixed a regression in the new UI that prevented the "Show FPS"
  function from working.  [Nate Woods]



Imgtool Changes:
----------------
- Removed no-longer used 'test' command.  [Nate Woods]

- Added a MacBinary filter.  [Nate Woods]

- [PRODOS] Added data fork support for ProDOS 6 forked files (storage class
  $5).  [Nate Woods]

- [MAC/TI99/TI990HD] Fixed a variety of crashes.  [Raphael Nabet]

- [RSDOS] Fixed an unexpected error message if the directory track fills up.
  [Nate Woods]

- [Windows] Added a feature to use filters when inserting and extracting files.
  (bug #631) [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.100.  This incorporates all features of the
  update to this core.  [MAME team]
  
- Removed fringe statetext feature used by a handful of the CBM drivers.  [Nate
  Woods]

- Fixed cassette audio sound regression introduced in MESS 0.93.  [Nate Woods]

- Fixed and cleaned up mouse code.  (bug #747) [Nathan Lineback and Nate Woods]

- [Windows] Added a -skip_warnings option.  [Nate Woods]

- [Windows GUI] Fixed copyright year.  (bug #740) [Nate Woods]

- Fixed PULUW mnemonic in the 6309 disassembler.  [tim lindner]

- [Messtest] Refactored to use src/xmlfile.c code.  [Nate Woods]



0.99

New System Drivers Supported (in no particular order):
------------------------------------------------------
- VC4000 [PeT, Manfred Schneider]



System Driver Changes:
----------------------
- [AMSTRAD] Added green screen display configuration setting.  [bobz]

- [COCO/DRAGON] Fixed a rounding error in cassette loading that affected the
  Dragon game "Screaming Abdabs".  (bug #735) [Nate Woods]

- [DGNALPHA] Fixed NMI interrupt, so that Dragon Data Alpha OS-9 can now boot.
  [Phill Harvey-Smith]

- [MAC] Fixed endian problems under big endian hosts.  [Nate Woods]



User Interface Changes:
-----------------------
- [Windows GUI] Refactored INI parsing out of the main option code.  This
  should make it easier to swap out a different configuration file system.
  [Nate Woods]

- [Windows GUI] Fixed minor cosmetic bug in the Interface Options dialog.
  (bug #732) [Nate Woods]

- [Windows GUI] Added a feature whereby the GUI will watch the BIOS directories
  and automatically reaudit files that are added, removed or modified in those
  directories.  [Nate Woods]

- [Windows GUI] Changing BIOS or Samples directories will now only reaudit
  systems for which they are relevant.  [Nate Woods]



Imgtool Changes:
----------------
- [CONCEPT] Fixed a variety of crashes.  [Raphael Nabet]



Source Changes:
----------------
- The core is based on MAME 0.99.  This incorporates all features of the
  update to this core.  [MAME team]

- [Messtest] Now raises an error when a blank screenshot is emitted, as that
  is almost always a sign of an error.  [Nate Woods]
  


0.98

New System Drivers Supported (in no particular order):
------------------------------------------------------
- BeBox [Nate Woods]
- Dragon Beta [Phill Harvey-Smith]



System Driver Changes:
----------------------
- [A2600] Fixed TIA problem that caused graphics glitches in Warlords.  (bug
  #396) [Wilbert Pol]

- [ASTROCDE] Fixed sound regression introduced in 0.96.  [Frank Palazzolo]

- [C65] Fixed regression introduced in 0.96.  [Nate Woods]

- [DRAGON] Fixed printer output.  [Phill Harvey-Smith]

- [GAMEBOY] Added support for the bootstrap ROM, and fixed the Z80GB CPU
  core's disassembler.  [Wilbert Pol]
  
- [NES] Fixed NES timing.  (bug #724) [Andrew Church]

- [TUTOR] Fixed minor bug when clearing memory while unloading cartridges.
  [Nate Woods]

- [VECTREX] Added lightpen support. (bug #115) [Mathis Rosenhauer]

- [VECTREX] Added analog joystick emulation [Mathis Rosenhauer]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.98.  This incorporates all features of the
  update to this core.  [MAME team]
  
- [Messtest] Now will catch osd_die() messages.  [Nate Woods]

- Removed the 83 track limit on floppy disk images.  (bug #721) [Tim Lindner]



0.97

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Microkey Primo A-48 [Krzysztof Strzecha]



System Driver Changes:
----------------------
- [ADAM/AQUARIUS/C128/COLECO/EP128/KAYPRO/MPF1/MSX/MSX2/NC100/P2000T/SMS/SORD/
  TI85] Fixed regressions caused by Z80 port changes.  (bugs #707, #708, #709,
  #715) [Nate Woods]

- [BBCB] Fixed fatal regression introduced in 0.93.  [Nate Woods]

- [COCO/DRAGON] Improved .CAS loading for images with odd block sequences.
  [Phill Harvey-Smith]

- [DGNALPHA] Removed optional DOS BIOS.  [Phill Harvey-Smith]

- [JAGUAR] Added quickload device.  [Nate Woods]

- [PRIMO] Primo B-32 and B-48 testdrivers added. EPROM+RAM expansion emulation
  added. Support for .pp files improved. Memory fixed for A-48 model. Fixed
  address of second video memory area. Fixed Z80 regression. [Krzysztof
  Strzecha]

- [SGI] Various improvements; CD-ROM, keyboard and mouse hooked up and
  preliminary SCSI, DMA and Newport graphics board emulation.  [R. Belmont]

- [TC2048] Fixed regression introduced in 0.79.  (bug #713) [Nate Woods]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.97.  This incorporates all features of the
  update to this core.  [MAME team]
  
- Rewrote Mode 2 support for the 8255 PPI chip.  [Nate Woods]

- Removed trailing spaces from all input port name declarations.  [Nate Woods]

- Added CD-ROM device type.  [R. Belmont]



0.96

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Apple /// [Nate Woods]
- Microkey Primo A-32, A-64, B-64 [Krzysztof Strzecha]
- SGI IRIS Indigo workstation (not working) [Mooglyguy]
- SGI IP22 Indy workstation (not working) [Mooglyguy]



System Driver Changes:
----------------------
- [ADVISION] Fixed a video glitch.  (bug #17) [Dan Boris]

- [AMSTRAD] Cassette now starts up stopped.  [Barry Rodewald]

- [APPLE1] Improved driver.  [Colin Howell]

- [APPLE1] Fixed snapshot loading.  (bug #690) [Colin Howell]

- [APPLE1] Added cassette support.  (bug #477) [Colin Howell]

- [APPLE1] Added RAM at $E000-$EFFF for BASIC.  (bug #697) [Colin Howell]

- [APPLE2] Keyboard refactorings.  (bug #694) [Christopher Stone]

- [APPLE2CP] Now uses the IWM chip and implemented CE00 RAM.  System now runs
  (bug #312) [Nate Woods]

- [COCO] Fixed joystick ranges (they were previously 0-62 instead of 0-63.)
  (bug #698) [Nate Woods]

- [COCO] Lengthened certain floppy disk controller operations; now NitrOS-9
  boots on the CoCo 1/2.  (bug #502) [Phill Harvey-Smith]

- [GALAXY] Possibilty to disable ROM 2. 2k, 22k, 38k and 54k memory
  configurations added. Memory mapping improved. Palette corrected. Supprort
  for newer version of snapshots added. Lot of cleanups. Keyboard mapping
  corrected. [Krzysztof Strzecha]

- [SVISION] Fixed aspect ratio.  [PeT]

- [sysinfo.dat] Updated Apple I entry.  [Colin Howell]


User Interface Changes:
-----------------------
- [Windows GUI] Improved error reporting if the emulation fails at runtime.
  [Nate Woods]

- [Windows GUI] Stopgap measure to fix image loading on the Apple IIgs; this
  will not work if the Apple IIgs 5.25" disk is ever enabled; in the long run
  the INI and CFG system must be merged for a real fix. (bug #686) [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.96.  This incorporates all features of the
  update to this core.  [MAME team]  

- Fixed SEXW in hd6309 core. It really is a signed extension of W into Q.
  Also, it is 4 cycles long. Thanks to David Keil and Sockmaster for pointing
  this out.  [Tim Lindner]

- Fixed ESC key under natural keyboard emulation.  [Nate Woods]

- [Windows] Fixed arrow keys under natural keyboard emulation.  [Nate Woods]

- Fixed index addressing mode disassembly for the hd6309. [tim lindner]

- Merged Apple 2 floppy disk controller and IWM code.  The apple2c0 and
  apple2c3 drivers now work.  [Nate Woods]



0.95

New System Drivers Supported (in no particular order):
------------------------------------------------------
- LASER128 Rev4, LASER128ex Rev4a [Cowering]

- Apple //c (Original Memory Expansion) [Christopher Stone]



System Driver Changes:
----------------------
- [APPLE1] Removed extraneous and obsolete RAM size DIP switches.  (bug #676)
  [Nate Woods]

- [APPLE1] Implemented a proper reset key.  (bug #349) [Colin Howell]

- [APPLE1] Implemented additional RAM size options.  (bug #482) [Colin Howell]

- [APPLE2C0] Now uses the IWM chip.  [Nate Woods]

- [APPLE2GS] Implemented Ensoniq ES5503 sound system.  [R. Belmont]

- [C64] Fixed a regression intorduced in 0.92 that prevented the first floppy
  drive from working properly.  (bug #681) [Nate Woods]

- [MSX] Fixed a sound regression introduced in the 0.93 MAME core update.
  (bug #683) [Nate Woods]

- [TELMAC] Fixed a crash regression introduced in the 0.93 MAME core update.
  (bug #671) [Nate Woods]

- [TI990_10] Fixed a crash regression introduced in the 0.93 MAME core update.
  [Nate Woods]



User Interface Changes:
-----------------------
- Fixed a bug that caused the image info screen to not work properly with
  multiple images of the same device type.  (bug #677) [Nate Woods]

- [Windows GUI] Fixed a bug that could caused file filters to contain garbled
  text.  (bug #680) [Nick Westgate, Nate Woods]

- [Windows GUI] Fixed a bug that could cause trailing '|' characters in the
  device view.  [Nate Woods]

- [Windows GUI] Fixed a bug that could cause the GUI to internally lose track
  of which images are selected.  (bug #675) [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.95.  This incorporates all features of the
  update to this core.  [MAME team]  
  
- Fixed tinymess build.  [Nate Woods]



0.94

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Apple IIgs [Nate Woods]



System Driver Changes:
----------------------
- [A2600,A7800] Add keys to toggle switches.  New keyboard mappings are:

  1 - Select
  2 - Reset
  3 - Toggle Left Difficulty switch
  4 - Toggle Right Difficulty switch
  C - Toggle Black & White switch (a2600 only)
  ] - Toggle Pause switch (a7800 only)

  [Christopher Stone]

- [APPLE2] Reset key fixes:

  + The default Apple RESET key is now F12.
  + The apple2 driver no longer requires a CTRL key to reset.  (bug #642)
  + The apple2+ driver now has a DIP switch to switch between RESET and
    CTRL-RESET. (bug #645)

  [Christopher Stone]

- [CBM FAMILY] Fixed SID regressions introduced in 0.93.  SID chips now
  packaged as actual MAME/MESS sound cores.  (bug #658) [Nate Woods]

- [GAMEBOY] Fixed crash regression introduced in 0.93.  [Nate Woods]

- [TI99] Fixed crash regression introduced in 0.92.  (bug #662) [Nate Woods]

- [VIC20] Fixed crash regression introduced in 0.93.  (bug #659) [Nate Woods]



User Interface Changes:
-----------------------
- Classic MESS UI now performs hard resets instead of soft resets.
  [Christopher Stone]

- [Windows GUI] If MESS crashes at runtime, an error message will now be
  displayed.  Previously, the emulation would end and the user would be sent
  back into the GUI without explanation.  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.94.  This incorporates all features of the
  update to this core.  [MAME team]  

- Devices can now be marked as 'not working'.  [Nate Woods]
  


0.93

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Frankin ACE 100 [Cowering]
- Luxor Datorer ABC 80 family [Curt Coder]
- Sinclair QL family [Curt Coder]



System Driver Changes:
----------------------
- [A7800] Remapped Select and Reset keys. [Nate Woods]

- [AMIGA] Fixed the Amiga's BIOS length.  (bug #649) [Nate Woods]

- [APPLE2] Fixed modifier keys.  (bug #637) [Nate Woods]

- [APPLE2] Recalibrated Joysticks.  (bug #648) [Nate Woods]

- [APPLE2] Workaround for apple2/apple2p inverse colors.  (bug #475) [Nate
  Woods]

- [APPLE2] Synchronized the floppy disk controllers with the Apple II's ROM
  routines, speeding up floppy access.  [Nick Westgate]

- [APPLE2] Added keyboard mappings for the apple2/apple2p drivers.
  (bug #636) [Christopher Stone]

- [APPLE2] Added special REPT key to apple2/apple2p drivers. (bug #636)
  [Christopher Stone]

- [APPLE2] Added numeric keypad support to apple2ep driver. (bug #636)
  [Christopher Stone]

- [APPLE2] Fixed a bug in the ay3600 keyboard emulator which corrects
  auto-repeat functionality when using a numeric keypad.  [Christopher
  Stone]

- [APPLE2] RESET key enhancements. (bug #642) [Christopher Stone]



User Interface Changes:
-----------------------
- The tape control in the classic UI is now only available on systems with
  a cassette device.  [Dave Humphreys]

- [Windows] Fixed a bug in the new UI that could cause crashes when
  customizing analog inputs.  [Nate Woods]



Imgtool Changes:
----------------
- [OS9] Fixed a bug that could cause erroneous disk full errors when shrinking
  a file.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.93.  This incorporates all features of the
  update to this core.  [MAME team]



0.92

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [APPLE2] Changed joystick default key mapping so not conflict with keyboard
  mappings.  [Nate Woods]

- [APPLE2] Fixed a regression that could cause the screen to flash under
  certain situations.  (bug #634) [Nate Woods]
  
- [APPLE2] Fixed a regression that prevented certain Apple II models from
  booting introduced in MESS 0.91.  (bug #635) [Nate Woods]

- [APPLE2] Complete rewrite of Apple II banking.  [Nate Woods]

- [APPLE2] Driver will now accept .dsk images with up to eight extraneous
  bytes.  (bug #638) [Nate Woods]

- [COCO] Added support for The Rat graphics mouse.  (bug #639)  [Tim Lindner]

- [PC200] Fixed driver to successfully boot.  [John Elliott]



User Interface Changes:
-----------------------
- [WINDOWS] Toggling the menu bar will no longer change the window size.
  [Nate Woods]



Imgtool Changes:
----------------
- Created a new Apple ProDOS Imgtool driver (only reading supported for now.)
  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.92.  This incorporates all features of the
  update to this core.  [MAME team]
  
- Changed core to support multiple devices of the same IO_* enum value.  Note
  that when this is the case, indexing devices with calls that assume a one
  to one mapping like image_from_devtype_and_index() are no longer legal.
  [Nate Woods]

- [Windows GUI] Fixed a regression that could cause INI files to be
  erroneously written to the main directory.



0.91

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [A7800] Fixed memory reads from the POKEY sound system.  (bug #258) [Ken
  Siders]

- [MAC/LISA] Refactored floppy disk emulation to use MESS's floppy disk format
  abstraction code.  Also factored out Zilog 8530 code into a separate module.
  [Nate Woods]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
- [OS9] Fixed a bug that caused problems when dealing with double sided disk
  images.  (bug #633) [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.91.  This incorporates all features of the
  update to this core.  [MAME team]



0.90

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amiga (readded; based on MAME Arcadia work) [Nate Woods, Mariusz Wojcieszek]



System Driver Changes:
----------------------
- [A7800] Changed driver to use MAME/MESS standard 6532 RIOT code.  [Ken
  Siders]

- [AT] Marked driver as compatible with IBM-PC.  [Nate Woods]

- [BBC] BBCB1770 merged into BBCB.  Also modernized the driver, added tape
  and split mode support.  [Gordon Jefferyes]
  
- [COCO] Fixed a bug in DMK image creation that caused MESS and Imgtool to
  always zero count sectors when created.  (bug #630) [Nate Woods]

- [COCO3] Fixed a regression that prevented cartridges from loading on startup.
  [Nate Woods]
  
- [COCO3] Fixed a regression that prevented hires text blinking from updating
  properly.  (bug #628) [Nate Woods]

- [COCO3H] Fixed a bug in the 6309 LDBT/STBT instructions.  (bug #625) [Nate
  Woods]

- [JAGUAR] Fixed fatal regression introduced in 0.89.  (bug #626) [Nate Woods]

- [PC] Implemented CGA color composite artifact colors.  (bug #431) [John
  Elliott]

- [PC] Fixed a problem in the PIC8254 interrupt controller, and enhanced
  natural keyboard support.  [Nate Woods]

- [PC] Fixed hard drive support to recognize CHD geometry information.  [Nate
  Woods]



User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
- Creation and last modified dates are now supported by the core.  [Nate Woods]

- Added readsector and writesector commands to the Imgtool command line app.
  [Nate Woods]

- [FAT] CHD files are now supported.  [Nate Woods]

- [FAT] "Tildized" short file names are not generated when file names are
  short enough.  [Nate Woods]

- [FAT] Fixed a bugs that could cause file truncations or deletions to leak
  clusters.  [Nate Woods]

- [RSDOS] Bytes #16-31 of a directory entry will now be cleared upon creation.
  [Nate Woods]

- [Windows Imgtool] Fixed a bug that prevented read only files from opening.
  (bug #624)  [Nate Woods]

- [Windows Imgtool] Now handles multiple selections better, as well as
  cosmetic changes and fixups.  [Nate Woods]

- [Windows Imgtool] Fixed problems with error reporting with CHD hard drive
  files under certain conditions, and disabled certain functionity when read
  only files are open.  [Nate Woods]

- [Windows Imgtool] Added a new sector viewer feature.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.90.  This incorporates all features of the
  update to this core.  [MAME team]



0.89

New System Drivers Supported (in no particular order):
------------------------------------------------------
- TX-0 (two variants) [Raphael Nabet]



System Driver Changes:
----------------------
- [COCO] Fixed a regression that caused printer output to not work properly.
  (bug #612) [Nate Woods]

- [DRAGON ALPHA] Completed emulation of the Dragon Alpha, including support
  for the sound chip, and the internal disk interface.  [Phill Harvey-Smith]



User Interface Changes:
-----------------------
- Fixed a bug that prevented keyboard inputs from being customizable in the
  classic UI.  [Nate Woods]

- [Windows GUI] Fixed a bug that caused problems when trying to mount three or
  more images of the same type.  (bug #622) [Nate Woods]



Imgtool Changes:
----------------
- [FAT] Rewrote the FAT driver.  [Nate Woods]

- [OS9] The Imgtool OS-9 driver now supports writing files.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.89.  This incorporates all features of the
  update to this core.  [MAME team]



0.88

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Dragon Alpha (Phill Harvey-Smith)



System Driver Changes:
----------------------
- [COCO] Fixed a bug in DMK disk loading; games encoded with certain forms of
  copy protection now run.  (bug #606) [Tim Lindner]
  
- [MICROBEE] Added natural language support.  [Nate Woods]

- [MICROBEE] Added multi screen support.  [Kelby Murie]
  


User Interface Changes:
-----------------------
(none)



Imgtool Changes:
----------------
- [Windows] Created a new Windows GUI for Imgtool.  [Nate Woods]

- Added an 'identify' command that can be used to attempt to identify the
  type of any given image.  [Nate Woods]

- Preliminary CoCo OS-9 disk image module.  [Nate Woods]



Source Changes:
----------------
- The core is based on MAME 0.88.  This incorporates all features of the
  update to this core.  [MAME team]
  
- Fixed a latent problem where part of the natural language system still
  thought that we use 16-bit ports.  [Tim Lindner]

- Fixed a bug in core floppy handling that prevented writes to CoCo DMK
  images from working.  (bug #607) [Tim Lindner]

- Removed mess/snprintf.c and mess/snprintf.h.  [Nate Woods]



0.87

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [APPLE1] Added natural keyboard support.  [Nate Woods]

- [AMSTRAD] M6845 changes; the Backtro demo now runs.  [bobz, Nate Woods]

- [MICROBEE,EXIDY,VTECH] Implemented a binary quickload device.  (bug #599)
  [Nate Woods]

- [NESPAL] Fixed a major slowdown that only affected the PAL version of the
  NES driver.  (bug #457) [Nate Woods]

- [VTECH1] Fixed '*' and '+' keys on natural keyboard.  [Nate Woods]



User Interface Changes:
-----------------------
- [Windows] Fixed a regression that prevented all customize input, analog
  controls and configuration dialogs from working on Win95/Win98/WinME.
  [Nate Woods]

- [Windows GUI] Fixed a problem in hash calculation in which UnmapViewOfFile()
  was not properly being called. (bug #584)  [Nate Woods]

- [Windows GUI] ZIP paths prefixed with ./ will now have the ./ ignored.
  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.87.  This incorporates all features of the
  update to this core.  [MAME team]

- Major changes to the IODevice structure; made major changes to how they are
  initialized and iterated.  The new technique should be much more
  maintainable in the long run.  [Nate Woods]
  
- Hash tags in hash file now can specify a 'type' attribute that indicates
  what device type to which any given entry pertains.  [Nate Woods]



0.86

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)



System Driver Changes:
----------------------
- [AMSTRAD/C16/MSX/PC] Fixed a regression in which certain input ports were
  being ignored.  This was caused by a defect in PORT_INCLUDE.  [Nate Woods]

- [PC1512] Fixed a vblank regression introduced in the 0.85 input port changes
  [Andrew Jenner]

- [TELMAC] Added printer output, tone sound, colorram/blink attribute, a
  preliminary quickload for BASIC programs, and devices.  [Curt Coder]



User Interface Changes:
-----------------------
- [Windows] Added an "Analog Controls" dialog to the new UI.  [Nate Woods]

- [Windows] The MAME arrow key chars now show up in the new UI remap dialogs
  [Nate Woods]

- [Windows GUI] Added a tab view that provides an alternate way to load and
  unload software images.  [Nate Woods]

- [Windows GUI] Revamped the software picker; file iteration is now
  asynchronous and multiple files within ZIPs are now supported.  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.86.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed default names for input ports that use PORT_CHAR.  [Nate Woods]

- CDP1802 cycle count fixes.  [Curt Coder]

- Fixed a regression in which Start and Select buttons were not properly
  specified.  This could result in crashes when customizing the inputs of
  certain drivers in the new Win32 UI.  [Nate Woods]



0.85

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Coleco FunVision [Curt Coder]



System Driver Changes:
----------------------
- [A2600] Various fixes on certain Activision games.  (bug #570) [Judge]

- [AMSTRAD] Renamed cpc6128fr to cpc6128f to be 8.3 compliant.  [Nate Woods]

- [C16] Added natural keyboard support.  [Nate Woods]

- [COCO] Implemented .os9 disk image creation support.  (bug #576) [Nate
  Woods]

- [COLECO] Miscellaneous cleanups.  [Curt Coder]

- [GENESIS] Fixed button input declarations.  [Nate Woods]

- [MICROTAN] Fixed a video hardware crash.  [Curt Coder]

- [PC] New PIT8253 implementation; Styx and Digger run better now.  Also fixed
  the PIT8253 frequencies and mades some PIC8259 fixes.  [Andrew Jenner]

- [TI99, GENEVE] Updated the IDE card emulation with the latest changes to the
  prototype.  The latest prototype is incompatible with earlier prototypes
  (IDE bus has been byte-swapped), so you need to download the latest DSRs and
  use a new, blank IDE hard disk image.  Also, the state of the IDE clock chip
  (rtc65271) is now saved to disk, so that you can use a rtc bootstrap loader
  to load IDEAL from the IDE harddisk, as explained in Nouspickel's IDEAL page.
  [Raphael Nabet]

- [ZX80] Added natural keyboard support and iscellaneous cleanups.  [Curt
  Coder]



User Interface Changes:
-----------------------
- [Windows] Fixed a bug when creating disk images in which default extensions
  were not spcified.  (bug #576)  [Nate Woods]
  
- [Windows] Modified the new UI input dialogs so that they behave like the
  MAME UI input dialogs, allowing for multiple input sequences.  [Nate Woods]

- [Windows GUI] Fixed some miscellaneous bugs having to do with the software
  picker settings.  (bug #568, bug #571)  [Nate Woods]

- [Windows GUI] Fixed a bug that could cause the MESS GUI to use 100% of CPU
  time when idling.  [Andrew Jenner]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.85.  This incorporates all features of the
  update to this core.  [MAME team]



0.84

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad NC100, NC100a [Kevin Thacker]



System Driver Changes:
----------------------
- [A5200] Fixed a crash on start regression introduced in MESS 0.82 [Nate
  Woods]

- [AMSTRAD] Refined video display and Z80 timings; the Yao demos work
  better now.  Also changed default joystick input definitions.  [Yoann
  Courtois]

- [APPLE2] Fixed a bug in high RAM emulation and vblank emulation; a number
  of old MECC games now work.  Also enabled nibble disk images with the
  extension .DSK  [Nate Woods]

- [CBM] Raised the delay at which quickloads load, so that quickloads can be
  loaded at startup.  (bug #420, bug #525) [Nate Woods]

- [IBMAT] Fixed a regression that prevented AT 286 drivers from loading [Nate
  Woods]

- [ODYSSEY2] Cleaned up driver and fixed regression introduced in MESS 0.79
  (bug #564) [Nate Woods]

- [PC1512] Video fixes [Andrew Jenner]

- [TELMAC] Improved the accuracy of the cpu emulation and added some tmc2000t
  code.  [Curt Coder]

- [TI99,GENEVE] Fixed various bugs in HSGPL ROM6 support.  Enabled the IDE card
  for the Geneve and ti99/8 drivers (this involved fixing a design flaw in the
  original IDE card prototype).  Added preliminary support for the SmartMedia
  part of the  USB-SmartMedia card.

- [ZX81] Tape loading added [Krzysztof Strzecha]


User Interface Changes:
-----------------------
- Fixed the input device categorization feature so that it was accesible from
  the classic UI.  (bug #556)  [Nate Woods]

- [Windows GUI] Tree view off by default.  [Nate Woods]

- [Windows GUI] Refactored picker code to be more modular and used better in
  both MESS and MAME32.  Also fixed a sorting bug.  (bug #543)  [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.84.  This incorporates all features of the
  update to this core.  [MAME team]

- [Windows] Specified the image base for messlib.dll, so MESS should startup
  slightly faster.  [Nate Woods]



0.83

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad CPC6128 (French AZERTY keyboard) [Yoann Courtois]
- Megaduck [Wilbert Pol]
- Sinclair ZX-80 (fixed & readded) [Krzysztof Strzecha]
- Sinclair ZX-81 (fixed & readded) [Krzysztof Strzecha]
- Sinclair ZX-81 (2nd rev) (fixed & readded) [Krzysztof Strzecha]
- Sinclair ZX-81 (3nd rev) (fixed & readded) [Krzysztof Strzecha]
- Timex Sinclair 1000 (fixed & readded) [Krzysztof Strzecha]
- ASZMIC ZX-81 ROM swap (fixed & readded) [Krzysztof Strzecha]
- Your Computer - PC8300 (fixed & readded) [Krzysztof Strzecha]
- Creon Enterprises - Power 3000 (fixed & readded) [Krzysztof Strzecha]
- Lambda 8300 (fixed & readded) [Krzysztof Strzecha]
- Sanyo Laser 110 (Germany) [Dirk Best]
- VZ-200 (Germany) [Dirk Best]
- Sanyo Laser 210 (Germany) [Dirk Best]
- Laser 310 (Basic V2.1) [Dirk Best]
- Dick Smith Electronics VZ-300 (Basic V2.1) [Dirk Best]



System Driver Changes:
----------------------
- [A400/A800] Fixed cartridge loading and partial state save support.  [Nate
  Woods]
 
- [AMSTRAD] Added natural keyboard support.  [Nate Woods]

- [AMSTRAD] Interrupts, Gate Array and Video enhancements; a few demos work
  now.  [Yoann Courtois] 

- [GENESIS] Split Genesis driver into gen_usa, gen_eur and gen_jpn drivers
  for different countries.  Also fixed a bug that caused sound to be gone in
  certain games, and fixed Raiden Trad and Wani Wani World.  [Anonymous]

- [PC] The speaker will now be silent if the 8253 is instructed to generate
  a waveform that is higher frequency than the emulation sample rate.  Also
  corrected the CGA color set.  [Andrew Jenner]

- [VTECH1] Fixed graphics and added printer support.  [Dirk Best]

- [VTECH1] Added natural keyboard support.  [Nate Woods]



User Interface Changes:
-----------------------
- [Windows] Added a "Miscellaneous Inputs" menu item to the Options menu,
  allowing the user to configure miscellaneous inputs.  [Nate Woods]

- [Windows] Fixed tab order on custom input dialogs.  [Nate Woods]

- [Windows GUI] Fixed a small bug on the "Interface Options" dialog  (bug
  #551) [Nate Woods]



Imgtool Changes:
----------------
(none)




Source Changes:
----------------
- The core is based on MAME 0.83.  This incorporates all features of the
  update to this core.  [MAME team]

- Added a "variable peripherals" feature that allows drivers to identify
  which inputs pertain to a given peripheral, like a gamepad or a lightgun.
  Changed A2600 and NES drivers to use this feature.  (bug #550 was a related
  issue) [Nate Woods]

- It is now possible to specify IP_NAME_DEFAULT in PORT_KEY declarations; the
  name of the key will be derived by the unicode values.  [Nate Woods]



0.82

New System Drivers Supported (in no particular order):
------------------------------------------------------
- AT 386 (Not yet working) [Nate Woods]

- MSX2+ and variants [Jirou Kaneda]
	- FS-A1FX
	- FS-A1WSX
	- FS-A1WX (two versions)
	- HB-F1XDJ
	- HB-F1XV
	- WAVY PHC-35J
	- WAVY PHC-70FD
	- WAVY PHC-70FD2

- Telmac TMC-600 (Series I/II) [Curt Coder]



System Driver Changes:
----------------------
- [A2600] Updated to support most games above 4 KB.  [Stefan Jokisch]

- [A7800] Changed Atari 7800 (NTSC) BIOS set. (Thanks to Mitch) [Christopher Stone]

- [C64] Implemented natural keyboard support.  [Nate Woods]

- [C128] Fixed a regression introduced in MESS 0.79.  (bug #544) [Nate Woods]

- [GENESIS] Almost complete rewrite.  [Anonymous]

- [MPF1] Changed MPF-1 BIOS set.  [Curt Coder]

- [ORIC] Fixed fatal regression crash on startup.  (bug #538) [Nate Woods]

- [PC] Cleanups; code simplified and CGA video slightly faster now.  [Nate
  Woods]

- [STUDIO2] Modified to use io_write_byte/io_read_byte for I/O ports, moved
  registers enum to cdp1802.h for access needed by a future driver, and changed
  studio2/vip drivers to work on the modified core.  [Curt Coder]

- [PMD85.1] Tape emulation with support for .pmd format files added. [Krzysztof
  Strzecha]


User Interface Changes:
-----------------------
- [Windows] Fixed a bug in which if the "About MESS" menu item was selected, 
  the help file would come up but be set to an invalid page.  (bug #537) [Nate
  Woods]
  
- [Windows] Fixed a bug in the new UI input dialogs that could cause the
  scrolling to malfunction if the mouse wheel was used.  (bug #539) [Nate
  Woods]

- [Windows] Fixed a bug that caused input items with ampersands in them to
  have the ampersands dropped.  (bug #541) [Nate Woods]



Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.82.  This incorporates all features of the
  update to this core.  [MAME team]

- [Windows] Fixed a very subtle bug in Win32 file handling that caused a very
  serious disk corruption bug in the CoCo driver (bug #500) [Nate Woods and
  Tim Lindner]
  
- CDP1802 CPU improvements:  [Curt Coder]
	- Fixed "Subtract with Borrow" opcode
	- Fixed reset
	- Fixed mnemonic IMP -> INP
	- Added registers N and I
	- Cleaned up 1802tbl.c with macros
	- Clock divider -> 8
	- Added interrupt handling 



0.81

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Tesla PMD-85.1/PMD-85.2/PMD-85.2A/PMD-85.2B/PMD-85.3 [Krzysztof Strzecha]
- Didaktik Alfa [Krzysztof Strzecha]
- Statny Mato [Krzysztof Strzecha]
- Multitech MPF-1/MPF1-B [Mooglyguy and Curt Coder]
- [MSX] National CF-3300 [Jirou Kaneda]
- [MSX] Sony HB-75D [Jirou Kaneda]
- [MSX] Sony HB-201 [Jirou Kaneda]
- [MSX] Sony HB-201P [Jirou Kaneda]
- [MSX] Sony HB-501P [Jirou Kaneda]
- [MSX] Spectravideo SVI-738 [Jirou Kaneda]
- [MSX] Gradiente Expert Plus [Jirou Kaneda]
- [MSX] Gradiente Expert DDPlus [Jirou Kaneda]
- [MSX] Daewoo IQ-1000 / DPC-200 - Korean [Jirou Kaneda]
- [MSX2] Daewoo IQ-2000 / CPC-300 - Korean [Jirou Kaneda]
- [MSX2] Daewoo X-II CPC-400 - Korean [Jirou Kaneda]
- [MSX2] Daewoo X-II CPC-400S - Korean [Jirou Kaneda]
- [MSX2] Philips NMS-8250 [Jirou Kaneda]
- [MSX2] Philips NMS-8280 [Jirou Kaneda]
- [MSX2] Philips VG-8235 [Jirou Kaneda]
- [MSX2] Sony HB-F9P [Jirou Kaneda]
- [MSX2] Sony HB-F500P [Jirou Kaneda]
- [MSX2] Sony HB-F700D [Jirou Kaneda]
- [MSX2] Sony HB-F700S [Jirou Kaneda]
- [MSX2] Sony HB-G900P [Jirou Kaneda]
- [MSX2] National FS-5500F1/F2 [Jirou Kaneda]
- [MSX2] National FS-4500 [Jirou Kaneda]
- [MSX2] National FS-4700 [Jirou Kaneda]
- [MSX2] National FS-5000F2 [Jirou Kaneda]
- [MSX2] National FS-4600 [Jirou Kaneda]
- [MSX2] Panasonic FS-A1F [Jirou Kaneda]
- [MSX2] Panasonic FS-A1FM [Jirou Kaneda]
- [MSX2] Sony HB-F500 [Jirou Kaneda]
- [MSX2] Sony HB-F900 [Jirou Kaneda]
- [MSX2] Sony HB-F1 [Jirou Kaneda]
- [MSX2] Sony HB-F1II [Jirou Kaneda]
- [MSX2] Sony HB-F1XD [Jirou Kaneda]
- [MSX2] Sony HB-F1XDMK2 [Jirou Kaneda]
- [MSX2] Sanyo Wavy PHC-23 [Jirou Kaneda]



System Driver Changes:
----------------------
- [DAI] Stack overflow interrupt added. [Krzysztof Strzecha]

- [MZ700] Fixed a crash on startup. (bug #530) [Nate Woods]

- [NES] Fixed a crash when running certain games such as the SMB/Duck Hunt
  cartridge. (bug #534) [Nate Woods]

- [PC] Fixed some floppy disk regressions.  (bug #532) [Nate Woods]

- [PC8801] Added natural keyboard support.  [Dopefish Justin and Nate Woods]

- [PCE] Fixed a crash on startup. (bug #531) [Nate Woods]



User Interface Changes:
-----------------------
- [Windows GUI] Fixed save state loading from the GUI.  (bug #524) [Nate
  Woods]

- [Windows GUI] Fixed a stupid error in which one of the help menu items
  failed. (bug #529) [Nate Woods]



Imgtool Changes:
----------------
- Created a Cybiko image driver.  [Tim Schuerwegen]



Source Changes:
----------------
- The core is based on MAME 0.81.  This incorporates all features of the
  update to this core.  [MAME team]

- Changed around how CRC files work; changed the format to XML and they are
  no longer specific to CRC32; SHA-1 and MD5 are now supported.  The files
  are now called 'Hash' files are are in the hash directory.  [Nate Woods]

- The artwork will now try to load artwork files with the goodname of the
  image in addition to the other filenames.  [Nate Woods]



0.80

New System Drivers Supported (in no particular order):
------------------------------------------------------
- [MSX] National CF-2000 (Jirou Kaneda)
- [MSX] National CF-1200 (Jirou Kaneda)
- [MSX] National CF-2700 (Jirou Kaneda)
- [MSX] National CF-3000 (Jirou Kaneda)
- [MSX] National FS-1300 (Jirou Kaneda)
- [MSX2] Panasonic FS-A1 (Jirou Kaneda)
- [MSX2] Panasonic FS-A1MK2 (Jirou Kaneda)



System Driver Changes:
----------------------
- [APPLE2] Fixed double hires colors. (bug #494) [Nate Woods]

- [ATARI] Miscellaneous cleanups, and implemented Atari 5200 joystick top
  triggers. (bug #328) [Nate Woods]

- [COCO3] Video timing fixes and cleanups; certain SockMaster demos run
  better now.  Also, fixed a bug that caused problems if a cartridge was ran
  and then the emulation was restarted without a cartridge in the same session.
  [Nate Woods]

- [COCO3] Fixed a minor video glitch due to not properly updating a value when
  bit 7 of $FF9F was changed. (bug #359) [Nate Woods]

- [PC] Complete 8237 DMA and 8253 PIT rewrites, and associated changes in the
  NEC765, 8259 PIC, FDC and HDC implementations.  The new 8237 and 8253
  implementations are cleaner and purer hardware emulations and should be
  more accurate.  In the process, fixed a critical long standing bug in the
  PC floppy emulation and other bugs. (bugs #154, #430) [Nate Woods]

- [PC] Hard disk controller enhancements; FreeDOS now boots.  [Nate Woods]

- [MAC] Cleaned up the driver a bit; implemented natural keyboard support and
  configurable RAM.  [Nate Woods]

- [SORDM5] Fixed Sord M5 .cas image loading.  [Tim Schuerwegen]



User Interface Changes:
-----------------------
- [Windows GUI] Fixed a bug by which BIOSless systems would not be filtered
  as available.  (bug #516) [Nate Woods]

- [Windows GUI] Fixed a stupid layout bug the Miscellaneous properties tab.
  (bug #518) [Nate Woods]




Imgtool Changes:
----------------
(none)



Source Changes:
----------------
- The core is based on MAME 0.80.  This incorporates all features of the
  update to this core.  [MAME team]

- Minor tools reorg; tool build rules now moved into the main makefile, and
  the tools directory is no longer used.  [Nate Woods]

- CHD will now be the standard harddrive format for MESS.  As such,
  enhancements have been made to MESS's CHD support.  Also, the PC driver
  has been converted over to use the new format and the old raw HD format is
  no longer supported.  Additionally, the MAME hard disk manager (CHDMAN)
  is now distributed with MESS.  [Nate Woods]

- Fixed a bug in which low resolution systems (specifically the Channel F and
  Gameboy) would not properly save screenshots.  (bug #521) [Nate Woods]
  
- WAV file code can now handle files where the format header is longer than 16
  bytes.  [Nate Woods]

- Identified a few rounding errors that caused some WAV files to not load in
  certain drivers.  [Nate Woods]

- Added a floppy_identify() function to the floppy format code.  [Nate Woods]



0.79

New System Drivers Supported (in no particular order):
------------------------------------------------------
- [MSX2] Sony HB-F700P (Sean Young)
- [MSX2] NMS 8245 and NMS 8255 (Sean Young)
- [MSX] National FS-4000 (Sean Young)
- [MSX] Sony HB-75P (Sean Young)



System Driver Changes:
----------------------
- [APPLE2] Fixed a regression in caching disk data that would cause data to
  be lost when switching disks, or for switching disks to not be acknowledged.
  [Nate Woods]

- [MSX] Rewrote memory emulation.
  * Adds support for subslots
  * Proper memory layout for the MSX2 drivers, with the diskrom
    in a subslot of slot 3.
  * Adds support for Konami's Sound Cartridge (128kb)
  * Adds support for Korean 90-in-1 
  * Adds support for Kanji ROM

  If no cartridges are supplied, it sets the Sound Cartridge in slot 1
  and the FM-PAC in slot 2. The Snatcher, SD-Snatcher and the Konami
  Game Collections now work. Note that Sound Cartridge also behaves as a 
  normal SCC.

  With one cartridge supplied the FM-PAC is still set in slot 2 so 
  R-Type and other ROM cartridges can still use it. [Sean Young]

- [SUPERBRD] Updated driver with a better BIOS set and keyboard layout and
  added sound.  [Claudio Nieder]



User Interface Changes:
-----------------------
- [Windows GUI] Minor bug fixes regarding software listing and CRC
  calculations with respect to clone and compatible drivers. [Nate Woods]



Imgtool Changes:
----------------
(none)


Source Changes:
----------------
- The core is based on MAME 0.79.  This incorporates all features of the
  update to this core.  [MAME team]

- As a consequence of the MAME 0.79 core, which has massive changes
  to the memory system, there is a greater likelyhood of regressions
  in this MESS release (as with MAME.)

- Introduced automated messtest testing facility, in order to prevent
  regressions in the future.  [Nate Woods]

- Internal error reporting enhancements for image loading; still some work to
  do.  [Nate Woods]
  


0.78

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Coleco Adam (Jose Moya)


System Driver Changes:
----------------------
- [APPLE2] Fixed a serious bug that caused disk corruption.  (bug #476) [Nate
  Woods]
  
- [APPLE2] Fixed two softswitch banking bugs that garbled graphics in King's
  Quest.  (bugs #487, #489)  [Nate Woods]

- [APPLE2] Fixed recently introduced slowness in floppy loading.  (bug #495)
  [Nate Woods]

- [COLECO] Yolks Revenge fully playable now.  [Jose Moya]

- [DRAGON] Fixed disk controller when used with double sided disks.  (bug
  #492)  [Nate Woods]

- [SNES] Added HiRes support(fixes Secret of Mana name select screen). Fixed
  old NES joypad support. [Anthony Kruize]

- [SVI318] Fixed a crash on startup.  [Nate Woods]

- [UK101] Minor enhancements, switched to MESS managed RAM.  [Nate Woods]



User Interface Changes:
-----------------------
- [Windows] Fixed the -writeconfig option; was accidently dropped.  (bug #492)
  [Nate Woods]



Imgtool Changes:
----------------
(none)


Source Changes:
----------------
- The core is based on MAME 0.78.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed a cassette crash that affected the TI-99 among other drivers.  [Nate
  Woods]
  
- Changes to device handling in order to support richer image creation.  [Nate
  Woods]



0.77

New System Drivers Supported (in no particular order):
------------------------------------------------------
- [TI99] Enabled a new, incomplete TI-99/8 driver.


System Driver Changes:
----------------------
- [A2600/A7800] Fixed reset handling.  [Nate Woods]

- [A7800] Fixed RAM0 and RAM1 bank handling, which has been broken since MESS
  0.61.  Ikari Warriors now runs, among other games most likely.  [Nate Woods]
  
- [A7800] Video patch; Choplifter runs better among other games.  [Keith
  Gerdes]

- [A7800P] Minor PAL fix.  [dannonew]

- [AMSTRAD, MSX, SORD, KC] Changed CPU core on these systems from Z80_MSX to
  Z80.  Since the MAME core now has CPU opcode reading safety now, Z80_MSX is
  no longer necessary.  [Nate Woods]

- [APPLE2, APPLE2P] "Down-sized" the video hardware in accordance to the
  capabilities of these systems (bug #401).  [Nate Woods]

- [COCO3] Fixed a bug in DMK handling (bug #454).  [Nate Woods]

- [COCO3] Fixed a bug that caused Hi-Res graphic modes where the line pitch
  was less than 128 bytes to fail (bug #465).  [Nate Woods]

- [COLECO] Extra Controller support (bug #10) which fixes Turbo etc.
  * Memory handlers/IO ports modified to better emulate a real coleco.
  * Memory map now has only 1k of RAM mapped on 8k Slot
  * Paddle handler now is handled as on a real ColecoVision
  * Support for a Driving Controller (Expansion Module #2), enabled via
    configuration
  * Support for a Roller Controller (Trackball), enabled via configuration
  * Support for two Super Action Controllers, enabled via configuration  
  * Most (All?) carts work now - Let us know which ones still don't. [JMoya]

- [MSX2] MSX2 no longer marked as a clone of MSX.  [Nate Woods]

- [PC] Fixed a bug in the i86 CMPSW instruction (bug #466).  [Bob Dayley]

- [PC] Fixed a pit8253 bug (bug #399).  [Ruslan Staritsin]

- [SORD] Added cassette support.  [Tim Schuerewegen]


User Interface Changes:
-----------------------
- HOME and DEL now have default natural keyboard bindings, to ASCII values
  12 and 8 respectively.  For systems that use a key with those values, like
  the CoCo, this change now enables those keys to be used from the natural
  keyboard.  [Nate Woods]

- When a cassette motor is active, another icon will be displayed indicating
  whether play or record is set.  [Nate Woods]
  

Imgtool Changes:
----------------
- Major source code reorg and cleanup; uses new generic floppy and parameter
  system.  [Nate Woods]


Source Changes:
---------------
- The core is based on MAME 0.77.  This incorporates all features of the
  update to this core.  [MAME team]

- Overhaul on generic floppy and cassette image systems; added new generic
  parameter layer.  Read/write cassette images are now supported.  Also moved
  CoCo, Apple II and PC drivers onto the new floppy system.  Note that there
  is potential for breakage here, but in the long run both of these overhauls
  will be worth it.  [Nate Woods]
  
- Fixed cheat engine.  [Nate Woods]

- The documentation was gutted and integrated with Paul Vince's easyEmu
  guide.  All of the documentation is now under docs/ in the source tree.
  Platform specific help now goes in subdirectories like docs/windows and
  so on.  [Nate Woods, Paul Vince]

- Added some consistency code to sanity check drivers' extension lists (bug
  #470).  [Nate Woods]
  
- Drivers now have the ability to add custom disassembler procs, to customize
  the way the cores disassemble code.  [Nate Woods]

- CRC files will now be read for driver parents (bug #460).  [Nate Woods]


0.74

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Texas Instruments TM990/189 University Board [Raphael Nabet]


System Driver Changes:
----------------------
- [A7800] Implemented Kangaroo and transparency modes. [Eric Ball]

- [A7800] Removed use of plot_pixel(), resulting in performance gains. [Nate
  Woods]

- [APPLE2] Writing to disk images and ProDOS order (*.po) disk images are now
  supported.  [Nate Woods]
  
- [SORDM5] Fixed keyboard.  [Tim Schuerewegen]


User Interface Changes:
-----------------------
- [Windows] It is now possible to make customized keyboard dialogs for
  different drivers, in the same way that it is possible to make per-driver
  customized joystick dialogs.  [Nate Woods]
  

Imgtool Changes:
----------------
(none)


Source Changes:
---------------
- The core is based on MAME 0.74.  This incorporates all features of the
  update to this core.  [MAME team]


0.73

New System Drivers Supported (in no particular order):
------------------------------------------------------
- DAI Personal Computer [Krzysztof Strzecha, Nate Woods]

System Driver Changes:
----------------------
- [COCO] CoCo joystick buttons can now be mapped to the mouse buttons (bug
  #317).  [Nate Woods]
  
- [COCO3] Now supports option for 8MB of RAM. [Nate Woods]

- [SNES] Improved sprite to sprite priority. [Anthony Kruize]

User Interface Changes:
-----------------------
(none)

Imgtool Changes:
----------------
(none)

Source Changes:
---------------
- The core is based on MAME 0.73.  This incorporates all features of the
  update to this core.  [MAME team]

- Added some bounds checking to opcode fetches (bug #352).  [Nate Woods]

- Made some debugger fixes when dealing with 8 or 16 bit numbers.  [Nate
  Woods]
  
- Fixed a bug in the handline of low resolution systems; the UI would not be
  properly rendered.  [Nate Woods]

- Adds info regarding device extensions to -listinfo and -listxml output.
  [Andrea Mazzoleni]

- Renamed config.? to crcfile.?.  [Nate Woods]

- [Windows] When the new UI is active and MESS is paused, MESS now should not
  waste any excess CPU time.  [Nate Woods]



0.72

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [COCO3] Fixed a bug whereby $FE00-$FEFF would be mapped to the wrong memory
  when bit 3 of $FF90 was set when more than 512k was available.  This caused
  some NitrOS-9 programs to crash when allocating too much memory (bug #352).
  [Nate Woods]

- [COCO3] Added '_' to the supported keys for the natural keyboard.  '_' is
  specific to [Nitr]OS-9. [Nate Woods]

- [JAGUAR] Some enhancements to the blitter; most games are still not
  playable however. [Nate Woods]

- [NES] Updated NES so that it uses the ppu2c03b support within MAME (which
  was actually originally based on the MESS NES driver code). [Brad Oliver,
  Nate Woods]
  
- [PC] Made fonts, monitor types and CGA chipsets configurable. [John Elliot] 

- [PC] Basic state save support. [Nate Woods]

- [SNES] Name select is only for sprites using tiles over 255. Fixed sprite
  wrap at the bottom of the screen. Fixed clearing of HDMA channels. Fixed
  background colours in mode 0. [Jimmy Li, Anthony Kruize]

- [TI99] Several behind-the-scenes changes to support TI-99/8 emulation
  (which is not 100% working and disabled in MESS builds but implemented
  in source code).  Hopefully, there will be no change in functionality in
  the various TI-99/4(a) drivers. [Raphael Nabet]
  
- [VECTREX] Fixed a bug that prevented the default mine.art file from being
  loaded if no other artwork was found. [Nate Woods]

User Interface Changes:
-----------------------
- Added separate configuration menu, to be used for configuration items that
  were formerly represented with DIP switches.  [Nate Woods]
  
- [Windows] Revamped options menu, and added a keyboard customization menu.
  Also added the ability to create artwork for controller configuration
  screens (used NES as a testbed).  [Nate Woods]

Imgtool Changes:
----------------
- [MAC] Added preliminary support for MFS images. [Raphael Nabet]
- [TI99] Added support for HD images. [Raphael Nabet]

Source Changes:
---------------
- The core is based on MAME 0.72.  This incorporates all features of the
  update to this core.  [MAME team]

- Fixed a bug that would cause a hang when parsing certain invalid filenames
  (for example, D:\FOO\D:\FOO\BAR.ZIP). [Nate Woods]

- Revamped some inputs, added IPT_MOUSE, IPT_START, and IPT_SELECT.  The
  latter two can be used with IPF_PLAYER masks.  Also removed legacy
  IPT_SELECT1-4, and IPT_START1-4 should no longer be used by MESS. 
  [Nate Woods]

- Tripled the delay in which wd179x errors are reported.  This manifested
  itself in the CoCo driver by an emulated crash on some versions of NitrOS-9
  when run on a write protected image. [Nate Woods]



0.71

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Atari Jaguar [Nate Woods]

System Driver Changes:
----------------------
- [APPLE2] Moved Apple 2 disks over to use the standard floppy device code.
  [Nate Woods]

- [GENEVE] Fixed a bug with undocumented VDP behaviour.  Fixed Mouse buttons.
  [Raphael Nabet]

- [PC] Fixed a bug in keyboard handling that caused a 'stuck key' keyboard
  error to be displayed (bug #427). [Colin Howell, Nate Woods]

- [PC] Added support for CGA 160x100 mode (bug #225).  [Nate Woods]

- [PC] Fixed a bug that would occasionally cause garbage to be displayed on
  the screen after a screen resolution change (bug #100).  [Nate Woods]

- [PC1512] Fixed a few more video modes. [John Elliott]

- [TI99] Added support for Mechatronics mouse [Raphael Nabet]

- [TRS80] Fixed a crash on startup. [Nate Woods]

User Interface Changes:
-----------------------
- [WIN32] Fixed some resizing problems in windowed mode when the system
  resized the screen (bug #100). [Nate Woods]

- [WIN32 FE] Fixed a bug whereby refreshing would reset the current system to
  the last saved one (bug #384). [Nate Woods]

- [WIN32 FE] Missing optional BIOSes no longer trigger audit errors (bug
  #424). [Nate Woods]

Imgtool Changes:
----------------
- [TI99] Added support for HFDC subdirectories. [Raphael Nabet]

Source Changes:
---------------
- The core is based on MAME 0.71.  This incorporates all features of the
  update to this core.  [MAME team]
  
- Fixed a bug in the code that chooses artwork files for software images (bug
  #112). [Nate Woods]

0.70

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Corvus Concept [Raphael Nabet]
- Tomy Tutor [Raphael Nabet]

System Driver Changes:
----------------------
- [A2600] Fixed bug #405 and corrected some dipswitches. [Stefano Priore]

- [A7800] Reset and Start buttons now appear in the Input menu. Added
  console's own Pause button. [Stefano Priore]

- [ASTROCADE] Fixed some Input menu descriptions and corrected paddles'
  sensitivities. [Stefano Priore]

- [COCO] Implemented cocodmk_sector_count() and cocodmk_sector_info() in
  coco_dsk.c, allowing DMK images with weird sector sizes to load properly
  (bug #378). [tim lindner]

- [EINSTEIN/EP128] Fixed crashes on startup (bug #407). [Nate Woods]

- [GENEVE] Fixed sound in native mode and a mirror of the VDP ports that is
  used by the converted Tomy carts.  Enabled access to the RTC in ti99 mode.
  Implemented extra VDP ports in ti99 mode.  Implemented third mouse button.
  [Raphael Nabet]

- [IBMPC] Fixed a bug in the DAA instruction that prevented the driver from
  starting up (bugs #423, #425). [Colin Howell]

- [LISA] Implemented some missing MMU feature.  The Lisa OS still won't boot,
  though. [Raphael Nabet]

- [PC] Added support for natural keyboard handling.  Also fixed a bug in hard
  disk handling (bug #403). [Nate Woods]

- [PC200] Fixed a bug causing corrupted characters (bug #398) and a bug
  affecting floppies at startup. [John Elliott]

- [PCMDA] Fixed a bug whereby the screen wouldn't fully refresh all the time
  (bug #419).  [Nate Woods, John Elliott]

- [SNES] Fixed negative increment in GDMA. [Anthony Kruize]

- [TI99] Fixed some bugs that had been introduced in IDE emulation. [Raphael
  Nabet]

- [TI99 EVPC card] Implemented missing VDP ports.

- [TI99, GENEVE] Added hfdc HD support.  Changed floppy disk image format
  from the previous MESS-specific format to the more universal v9t9 format.
  This does make any difference for single-sided images, but you will need to
  convert existing double-sided image to the new format. [Raphael Nabet]

User Interface Changes:
-----------------------
- [WIN32 FE] The emulation will not be started up if any required devices are
  not specified with an image, like cartridges on a console system.  (bug #415)
  [Nate Woods]

Imgtool Changes:
----------------
- Renamed the ti99 module to ti99_old, since the format it handles has been
  obsoleted by changes in the ti99 driver. [Raphael Nabet]

- Added support for Corvus Concept disk images. [Raphael Nabet]

Source Changes:
---------------
- The core is based on MAME 0.70.  This incorporates all features of the
  update to this core.  [MAME team]

- Modified flopdrv.c to reset pDrive->id_index to zero when head is moved
  from track to track. [tim lindner]

- CRC calculation of read/write images has been disabled (bug #416).
  [Raphael Nabet, Nate Woods]

0.68

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad PC1512 v2 [John Elliott]
- Apple ][, Apple ][+ [Stefano Priore]
- Bally Computer System [Ian Knowles]
- GameBoy Pocket [Anthony Kruize]
- Myarc Geneve 9640 [Raphael Nabet]
- PC AT and PC AT VGA [Nate Woods]

System Driver Changes:
---------------------- 
- [A2600] Complete driver rewrite, including emulation of the 6532 RIOT (RAM, 
  INPUT, OUTPUT, TIMER) chip, cycle count correction in the t6502 core (fixes 
  games like Space Invaders) and a new TIA core.  [Stefan Jokisch]

- [APPLE2] Enhanced models now have the M65C02 processor specified; apple2c
  now boots.  Removed *.vid files from the BIOS set in favor of the proper
  character ROMs (suffixed with *.chr).  80-character text mode fixed (bug
  #311).  Implemented double hires mode (bug #303) and support for the
  alternate character set.  [Nate Woods]

- [APPLE2] Now uses the Robert Munafo palette. [Steve Nickolas]

- [AQUARIUS] The palette now corresponds to the one described in the User's
  Manual. [Stefano Priore]

- [COCO] PIA properly resets. [Nate Woods]

- [PC] Fixed bugs in CGA and MDA rendering (bugs #339 and #374).  Also speeded
  up EGA/VGA rendering and marked 'xtvga' as working. [Nate Woods]

- [SNES] Improved 16x16 background tile mode. Fixed another GDMA bug. Various
  mode 7 fixes. Fixed background priorities in modes 2 to 7. Added support for
  direct select to mode 7. Removed support for horizontal interrupts as it was
  totally broken. 16bit by 8bit multiply is now signed. [Anthony Kruize]

- [SUPERGB/GBCOLOR] No longer marked as clones of the GameBoy. [Anthony
  Kruize]

- [TI99] Added support for Thierry Nouspickel's IDE card prototype. Added
  incomplete but working support for the HFDC disk controller card and 80-
  track drives. Added support for a fourth floppy drive with non-TI floppy
  controllers. Fixed Super AMS memory card emulation. [Raphael Nabet]


Source Changes:
---------------
- The core is based on MAME 0.68.  This incorporates all features of the
  update to this core.  [MAME team]

- Drivers now have a 'compatible_with' field, that specify drivers that have
  compatible software but are not mere clones.  [Nate Woods]

- Devices are now referenced by a mess_image pointer, rather than a type/id
  pair. [Nate Woods]
  
- Enhanced MESS's natural keyboard facility, so that drivers can specify
  handlers to bypass keypress simulation.  [Nate Woods]

- Changed device load and unload so that all devices are loaded before machine
  init, but not necessarily driver init, in response to a bug (bug #366).
  [Nate Woods]

- [Windows] Default directories for the file dialogs can now be specified on
  a device type basis at the command line (e.g. -floppydisk_dir).  This
  option will get written out when launched from the GUI, so that per system
  directories can be recorded (bug #345). [Nate Woods]

- [Windows GUI] Fixed a bug whereby extra software paths with spaces in them
  would not be properly persisted (bug #369). [Nate Woods]

- [Imgtool] Enabled support for ti99 disk formats with more than 1600 sectors.
  Added support for v9t9 and pc99 disk image formats (note that these image
  formats are supported by imgtool, but not by the ti99 driver).
  [Raphael Nabet]


0.67

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [A2600/A5200/COLECO/COCO/INTV/MSX/SNES/VECTREX] Added support for new
  GoodTools file extensions. (bugs #277, #278, #279, #350) [Nate Woods]

- [C16/VC20] Fixed crashes in quickloader. [Nate Woods]

- [C16] Improved TED7360 sound emulation. [Attila Grosz]

- [COCO] Added direct support for OS-9 floppy disk images. If an attached disk's
  filename ends in .os9, the first sector will be analyzed for geometry
  information. [Tim Lindner]

- [COCO] Scaled the joystick port to 64 quanta rather than 256. (bug #340)
  [Tim Lindner]

- [COCO] Fixed bug #359. [Nate Woods]

- [MAC] Improved mouse emulation when moving diagonally. [Raphael Nabet]

- [MC10] Fixed bug #358. [Nate Woods]

- [PC200] Replaced generic character ROM with one reconstructed using CGAFont.
  [John Elliott]

- [PC1512] Replaced generic character ROM with one reconstructed using CGAFont.
  [John Elliott]

- [PC1640] Added definition for the character ROM in ROM_LOAD structure.
  [Stefano Priore]

- [PDP1] Added support for lightpen with variable tip size. [Raphael Nabet]

- [TI99] Added support for new disk geometries (9 sec/trk DSSD, 16 sec/trk SSDD,
  16 sec/trk DSDD). [Raphael Nabet]

- [TOOLS] Added CGAFont, a tool to help people reconstructing PC character ROMs
  without using an EPROM reader. [John Elliott]

Source Changes:
---------------
- The core is based on MAME 0.67.  This incorporates all features of the
  update to this core.  [MAME team]

- VIDEO_UPDATE() now has a do_skip parameter, which enables drivers to inform
  the core that no significant drawing has occured, and it is safe to skip
  blitting the current frame. [Nate Woods]

- [Windows] New -writeconfig option, that causes the current settings to be
  written back to an INI on exiting the emulation. [Nate Woods]

- [Windows] SSE optimizations to the blitter. [Nate Woods]

- [Windows] Fixed bug #344. [Nate Woods]

- [Windows UI] Fixed bug #348. [Nate Woods]

- [Windows UI] Changes made to mounted devices at runtime will now be persist
  between emulation sessions. (bug #228) [Nate Woods]


0.66

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [Lviv] Support for .SAV snapshots. Joystick support. [Krzysztof Strzecha]

- [SNES] Added support for fullgraphic VRAM transfers. Fixed VRAM reads. Fixed
  a rare clip window bug. [Anthony Kruize]

- [T1000HX] Modified to use character data from the actual BIOS. [Nate Woods]

- [APPLE2] Implemented floating bus emulation. [Nick Westgate]

- [COCO3] Fixed a performance bug that could slow things down in simple cases
  where not much screen IO is being made. [Nate Woods]

- [TI99/4] Driver is now enabled. Some bugfixes and support for IR remote
  handlers. [Raphael Nabet]

Source Changes:
---------------
- The core is based on MAME 0.66.  This incorporates all features of the 
  update to this core.  [MAME team]

- Major change to device handling; all devices now have separate init/exit
  and load/unload handlers.  The former are called on startup/shutdown, and
  the latter are called when images are loaded and unloaded. [Nate Woods]

- Moved CRC handling to use the core fileio functions. [Nate Woods]

- Added a osd_image_load_status_changed() call, so that front ends can get
  notified when the load status of an image changes. [Nate Woods]
  
- Introduced a cartslot_load_generic() call, to make simple cartridge image
  loading a bit simpler. [Nate Woods]

- [Win32 GUI] Fixed a bug where screenshots with periods in them would not be
  loaded properly. [Nate Woods]

- [Win32 GUI] Now uses INI files rather than the registry to store settings
  [MAME32 Team]

0.65

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
(none)

Source Changes:
---------------
- The core is based on MAME 0.65.  This incorporates all features of the 
  update to this core.  [MAME team]

- Fixed a fatal bug that could cause crashes when unmounting disk images for
  certain systems at runtime.  [Nate Woods]
  
- [Win32] Fixed a bug that caused us to be looking for the MAME names of
  sysinfo.dat and messinfo.dat (history.dat and mameinfo.dat).  [Nate Woods]

- [Win32 GUI] Fixed a bug that caused software specific screenshots to
  not show up if clicking between tabs.  [Nate Woods]

0.64

LICENSE CHANGE WARNING:
We are considering changing distribution license, switching to GPL for the
whole project and LGPL for some CPU and sound cores.
If you contributed code to MESS and are against this change, now is the
right time to let us know.

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [SNES] SRAM is now saved/restored correctly. Allow DMA registers to be read.
  More colour addition/subtraction improvements. Fixed the palette not updating
  in some situations. Improved fixed-colour support. Fixed object drawing at
  the left and top edges. Added support for clip windows. [Anthony Kruize]

- [SNESPAL] Now informs carts that it's a PAL system. Corrected maximum line
  count. [Anthony Kruize]

Source Changes:
---------------
- The core is based on MAME 0.64.  This incorporates all features of the 
  update to this core.  [MAME team]

0.62.1

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [AQUARIUS/TRS80/MICROTAN] Now use tilemap. [Nate Woods]

- [GAMEBOY] Fixed envelope generation in sound channels 1 and 2. (bug #289)
  [Anthony Kruize]

- [APPLE2] Added support for lo-res color and 80 column text. [Nate Woods]

- [APPLE2] Fixed open/closed apple keys and joystick buttons. (bug #297,
  bug #302) [Nate Woods]

- [A800] Fixed a recently introduced bug in disk support. [Lawrence Gold]

- [SFZCH] Fixed and re-enabled. [Anthony Kruize]

- [T1000HX] Minor video optimizations. [Nate Woods]

Source Changes:
---------------
- New generic code for emulating terminals, now in use by the Apple I and
  Kaypro drivers. [Nate Woods]

- Added the ability to specify a minimum resolution to display a system, in
  order to better support low resolution drivers. [Nate Woods]

0.62

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Odyssey 2 [PeT, Dopefish Justin]

System Driver Changes:
----------------------
- [SPECTRUM] Fixed snapshot loading. [Nate Woods]

- [COCO] Fixed some bugs related to handling of degenerate JVC files (where the
  file size is less than 161280 bytes) (bug #281) [Nate Woods]

- [SNES] Fixed a GDMA bug that was causing graphics corruption. Added support
  for FastROMs. Improved object and background layering priorities. Colour
  addition/subtraction is greatly improved. Added vertical mosaic effect. Fixed
  Mode 7 rotation and draw outside screen area. Added x/y flip to Mode 7. Added
  support for the back colour constant. [Anthony Kruize]

- [APPLE2] Fixed keyboard and aspect ratio, and also added color, joystick, and
  natural keyboard support. (bug #291) [Nate Woods]

- [SVI318] Enhanced disk drive support. [Tomas Karlsson]

Source Changes:
---------------
- The core is based on MAME 0.62.  This incorporates all features of the 
  update to this core.  [MAME team]

- Added new snapshot/quickload code, to hide the details about loading
  snapshots and quickloads from the drivers.  [Nate Woods]

- Added the ability for systems to override the friendly names of devices. [Nate
  Woods]
  
- [WIN32] Added the ability to toggle the frames per second view, differentiate
  between soft and hard resets in certain systems, and to save screenshots in
  the new UI.  [Nate Woods]

0.61.2

New System Drivers Supported (in no particular order):
------------------------------------------------------
(none)

System Driver Changes:
----------------------
- [SNES] Fixed background scrolling. Added 16x16 tile mode. Improved Mode 21
  SRAM support. [Anthony Kruize]

- [GAMEBOY] Finally fixed sound channel 3 so it produces correct frequencies!
  Flagged sound as being stereo. Improved input ports. Fixed loud buzz caused
  by the new sound code when digital audio is used. (bug #275) [Anthony Kruize]

- [SUPERGB] Fixed certain areas of the border image being left blank instead of
  being filled in. (bug #264) [Anthony Kruize]

- [COCO3] Fixed a bug that caused a few display glitches when switching between
  40 column and 80 column mode. (bug #271) [Nate Woods]

- [Z88] Video updates. [Kev Thacker]

Source Changes:
---------------
- Updated all drivers device declarations to new system and removed old dev
  array. [Nate Woods]

- New options.disable_normal_ui and osd_trying_to_quit() functions created, to
  support the new Win32 UI. [Nate Woods]

- Added the ability for drivers to support drawing to the UI in a standard way;
  which helped fix a problem where the tape graphic was lost in MESS 0.61. (bug
  #270) [Nate Woods]

- [Win32] New user interface replaces old UI; this is on by default but can be
  disabled with the -nonewui command switch.  This new UI uses Windows native
  menus and should be much easier to use. [Nate Woods]

- [Win32] Help file entries for each system now list the directory name
  expected by MESS. [Nate Woods]

- [Win32 GUI] Fixed an incredibly MORONIC bug where RAM preferences were stored
  as booleans (!?!) rather than integers (bug #260) [Nate Woods]

- [Win32 GUI] Fixed a bug where certain elements in the treeview lost their
  first character (bug #262) [Nate Woods]

0.61.1

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad family (fixed and reenabled) [Raphael Nabet]

System Driver Changes:
----------------------
- [COCO1] Update CRC for bas10.rom. Previous dump was bad. I would like to send
  a pecial "Thank you" to Sellam Ismail (http://www.vintage.org) for finding a
  Color Computer that contained Color BASIC 1.0. [tim lindner]

- [COCO1/2/3] Moved disk handling code over to new FormatDriver system;
  allowing transparent disk image handling for JVC, VDK, and DMK file formats.
  [Nate Woods]

- [COCO] Fixed a recent stupid bug in m6847 timing that had an effect on
  certain timing situations (bug #249) [Nate Woods]

- [COCO3] Fixed a palette timing bug that affected mid-frame video rendering.
  (bug #253) [Nate Woods]
  
- [COCO3] Fixed a bug where hi-res text characters with the high bit set were
  rendered as garbage. [Nate Woods]

- [COCO3] Fixed a bug where $FF9D and associated registers were being updated
  before vblank, when they should have been updated after. (bug #252) [Nate
  Woods]
  
- [COCO1/2/3] Made sure that SAM (and GIME on the CoCo 3) registers are
  properly reset after a crash. [Nate Woods]

- [DRAGON32/64] Made artifacting disabled by default, as this is how PAL systems
  would normally be.  [Nate Woods]

- [DRAGON64] Fixed a bug that prevented the system to run (the dragon64 driver
  was using the coco memory map) [Nate Woods]

- [DRAGON64] Adjusted the memory mapping scheme, enabling the DragonDOS
  cartridge and 64k mode to coexist.  Thanks to Simon Hardy for tracking down a
  better algorithm. [Nate Woods]

- [A5200] Fixed a regression in 0.61 that prevented the keypad from working.
  (bug #246) [Nate Woods]

- [A7800] Suffixed the name of the a7800 driver with NTSC and marked the PAL
  version as a clone of the NTSC version. [Nate Woods]

- [GBCOLOR] Implemented background priority. This fixes objects appearing over
  the background when they shouldn't be. [Anthony Kruize]

- [TI99/4A] Added support for BwG clock and floppy controller [Raphael Nabet]

- [SNES] Memory map is more accurate, adding support for HiRom carts. Fixed
  DMA transfers. Fixed missing tiles. Added preliminary mode 7 support. Added
  subscreens, including colour addition/subtraction. Fixed vertical flip for
  large objects. Improved vertical/horizontal latches. Improved ROM loading
  with better header and ROM type detection. Improved the SPCSkipper so a lot
  more games actually run now. [Anthony Kruize]

Source Changes:
---------------
- The MESS core will not automatically open software images in a clone system
  drivers directory anymore, under the belief that this functionality belongs
  in the OSD code. [Nate Woods]

- All MESS drivers need a SYSTEM_CONFIG (formerly COMPUTER_CONFIG) parameter
  specified.  Also changed the implementation of the SYSTEM_CONFIG_* macros to
  provide a more flexible system for representing the data.

  Added the ability for devices to be declared within the SYSTEM_CONFIG block.
  Consider the older way of declaring devices deprecated.

  Added new functions for iterating through devices, in order to better
  abstract the internal representation of devices:
  
	device_first()
	device_next()
	device_find()
		
  Also renamed GameDriver dev field to dev_ in order to break any source
  dependencies on the dev field. [Nate Woods]

- Added new memory pool code that implements memory pools that can be freed in
  one step. [Nate Woods]

- Overhaul of code that maintained the list of loaded images; moved to
  mess/image.[c|h], and changed the prefix of them from device_ to image_ (as
  opposed to the device_* calls that are used to access the IODevice
  structure).  Also, implemented these new calls for drivers to use:
  
	image_malloc()    (similar to auto_malloc(), but for the lifetime of devices)
	image_strdup()    (uses image_malloc() to allocate strings)
	image_exists()    (tests for the existance of a loaded image)
	image_filetype()  (accessor for file extension)

  For the most part, there is no longer any reason for MESS drivers to use
  malloc() and free(), so calls to these should be eliminated over time. [Nate
  Woods]
  
- Removed IO_RESET_ALL, as it was broken and an ugly hack to begin with (bug
  #239) [Nate Woods]

- In the opening display software info box, if the filename and the goodname
  (as determined by CRC) match up, the goodname will not be displayed in
  order to reduce screen clutter. [Nate Woods]
  
- Removed all calls to device_close(IO_CASSETTE) in system drivers, instead
  provided a cassette_exit() function that drivers can specify, removing this
  responsibility from system drivers. [Nate Woods]

- Implemented preliminary paste functionality; it attempts to decode the
  driver's input tables and attempts to create a mapping between ASCII and
  input signals.  This process is far from perfect at this time.  In the
  future, it will be possible for drivers to customize the way that paste works
  for a more perfect translation.  [Nate Woods]

- Added new PORT_KEYx macros that should be used in place of PORT_BITX when
  mapping keyboards.  These macros also specify unicode values for the input
  codes for natural keyboard support.  [Nate Woods]

- Added a new osd_keyboard_disabled() call.  If this returns non-zero, then
  the core will supress input of type IPT_KEYBOARD.  This is useful if a front
  end wants to implement a natural keyboard.  [Nate Woods]

- Added a new osd_parallelize() call, for basic SMP acceleration.  [Nate Woods]

- Renamed osd_dir.h to osd_mess.h, to further reflect that it is more than just
  directory calls.  [Nate Woods]

- [Win32] New -threads parameter, to specify the maximum amount of threads used
  for osd_parallelize(); defaults to the number of processors in the system.
  [Nate Woods]

- [Win32 GUI] Printers are now treated separately from the other devices; you
  do not specify printer ouput like you do disk images.  Printer output now
  gets specified in the configuration tab of the system properties.  The added
  benefit is that the same output file can be used repeatedly. [Nate Woods]

- [Imgtool] Imgtool floppy drivers can now be "templated"; a driver for a
  particular file system format can point at a structure that lists allowable
  disk image formats.  This allows for the addition of new disk image format
  drivers without touching the imgtool drivers. [Nate Woods]
  
- [Imgtool] Fixed a bug in the FormatDriver handling that caused some file puts
  to not be properly written.  [Nate Woods]

- [Imgtool] Added Color Computer DMK disk image support. [tim lindner]

0.61

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Super GameBoy [Anthony Kruize]
- GameBoy Color (preliminary) [Anthony Kruize]
- Innumerable Sega Master System Variants [Mike Luong]

Removed drivers:
----------------------
- Amstrad
- Chess Champion I
- Sinclair ZX Family
- Studio 2

System Driver Changes:
----------------------
- [COCO] The virtual printer should now be responsive to bitbanger output of
  any arbitrary baud. [Nate Woods]

- [COCO] Fixed a OKI M6242B clock emulation problem and a problem with Disto
  Real Time Clock emulation. [tim lindner]

- [COCO] Fixed a very ugly bug that could cause freezups under OS-9 and other
  forms of disk accesses.  This was because interrupts were dropped when the
  CPU is halted. (Bugs #197, #229) [Nate Woods]

- [COCO3] Fixed a bug in the GIME video emulation that caused all parts of
  the $FF9B/D/E video registers to be used in lo-res mode; where in reality
  the low 16 bits are dropped.  This caused a bug in CoCoTracker that caused
  the screen to be garbled after the MOD files are played. [Nate Woods]

- [COCO3] Adjusted composite colors slightly with help from SockMaster (Bug
  #227) [John Kowalski, Nate Woods]
  
- [COCO3] Exposed the two high bits on MMU registers (even though their value
  is undefined) to fix a problem with SockMaster's LSAVEM utility. [Nate Woods]
  
- [COLECO] The Coleco driver now recognizes the *.col extension for Coleco
  cartridges. [Nate Woods]
  
- [SPECPL3E] Updated BIOS to the 1.11 version romset
  (http://www.z88forever.org.uk/zxplus3e/) [Stefano Priore]

- [GAMEBOY] Can now load ROMs that are larger than 2MB. Fixed RAM bank
  switching in MBC3 ROMs. [Anthony Kruize]

- [COUPE] Combined coupe and coupe512 drivers into one driver that uses
  configurable RAM sizes. [Nate Woods]
  
- [A2600] Converted video code from using plot_pixel() to draw_scanline() [Nate
  Woods]
  
- [VTECH1] Converted back to using generic M6847 video hardware module (Bug #36)
  [Nate Woods]

- [SNES] Rewrite of the driver.  Still at a preliminary stage though. Some
  games are playable, others run but aren't playable, however most don't work.
  [Anthony Kruize]
  
- [VECTREX] Because of the MAME core's new artwork system, new .art files are
  now needed in conjunction with the normal Vectrex .png files to specify the
  artwork layout. [Nate Woods]

- [GENESIS] Changed input ports to be consistent with other drivers.
  [Anthony Kruize]

Source Changes:
---------------
- The core is based on MAME 0.61.  This incorporates all features of the 
  update to this core.  [MAME team] 

- Converted numerous drivers to use the auto_malloc() and auto_bitmap_alloc()
  calls, and also to use generic_bitmapped video calls. [Nate Woods]

- Added new videomap code that makes it easy to support arbitrary video modes
  in a fast, efficient manner.  This takes the place of the old
  rasterbits/rastertrack code; converted m6847, CoCo 3, and Mac video hardware
  to use videomap. [Nate Woods]

- Added a new disk format handling system that allows disk formats to be
  generically specified in such a way usable by both MESS itself, and imgtool
  [Nate Woods]

- Fixed a bug in the wave code that could cause a crash if a cassette image is
  unloaded. [Nate Woods]
  
- Added a [none] entry in the File Manager, that allows the user to unload an
  image. [Nate Woods]
  
- The file manager will now default to the directory that a preexisting image
  resides in. [Nate Woods]

- Fixed some bugs that caused the battery backups in the NES and GB systems to
  be placed in odd directories. [Nate Woods]
  
- Added palette_set_colors() function to make it easy to initialize a palette
  with a predefined list of colors. [Nate Woods]
  
- Readded record/playback support. [Nate Woods]

- Added artwork_use_device_art() to the MAME core to support Vectrex style
  artwork. [Nate Woods]

- Fixed bugs #192 and #200 - remember that:

  1) In File Manager you can press SHIFT+ENTER to manually edit a filename
     and CTRL-Y to delete the field.

  2) In the file selector you can edit the file specification and you can use
     SHIFT+UP/DOWN as PgUp/PgDown and
     CTRL+UP/DOWN as Home/End. [Stefano Priore]

- With help from SockMaster, fixed some very subtle timer bugs in the m6809
  and hd6309 CPU cores [Nate Woods, tim lindner, John Kowalski]
  
- New OSD function:

		void osd_device_eject(int type, int id);

  It sets a device image to NULL, as would a device_filename_change(type, id,
  NULL), but enables osd code to update its osd structures.  The mac and lisa
  drivers will use this function instead of device_filename_change to eject
  floppy disks.

  This function is needed because the mac osd code keeps track of each
  selected file, and the data went out of sync when device_filename_change
  was called. [Raphael Nabet]

- [GUI] Fixed a very minor bug that caused the software list view background
  to not be updated at the same time as the system list if the snap directory
  was changed. [Nate Woods]

0.56.1

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Dragon 64 [Nate Woods]
- PK-01 Lviv (three ROM revisions) [Krzysztof Strzecha]
- Microbee 32 PC [Stefano Priore]
- ZX Spectrum +3e (Spain) [Stefano Priore]
- TI-99/4P (preliminary) [Raphael Nabet]
- TI-990/10 [Raphael Nabet]

System Driver Changes:
----------------------
- [GAMEBOY] Added sound emulation(Bug #75).  Added support for MBC2, MBC3 and
  MBC5 carts. Most GBC games now show a "this game only works on GBC" screen.
  MBC1 can now switch modes. MBC3 has partial RTC emulation. Added support for
  battery backed ram(Bug #133). Sprites no longer have inverted colours in some
  games(Bug #26). Fixed window layer positioning(Bug #39). Changed the palette
  to closer resemble the LCD screen(Bug #87). Games which originally have no
  sound don't produce bass sound at start up(Bug #195). Improved LCD status
  timing and interrupts(Bug #117). [Anthony Kruize]

- [CGENIE] Floppy initialization fixed for when no floppy attached 
  (Bug #95) [Ben Bruscella]

- [UK101/SUPERBOARD] Cassette Initialization fixed [Stefano Priore]

- [MBEE] Renamed mbeepc to mbeepc85. Now mbee emulates the IC model (editor
  assembler), mbeepc emulates the PC model (terminal emulator) and mbeepc85
  emulates the PC85 model (WordBee wordprocessor) [Stefano Priore]

- [JUPITER] Cartridge and Cassette Initialization fixed 
  (Bug #126) [Ben Bruscella]

- [NASCOM]  Cassette Initialization fixed
  (Bug #183) [Ben Bruscella]

- [A7800] Fixed interrupt handling bug - more carts run again [Ben Bruscella]

- [A7800] Fixed bug that caused crashes on resets [Nate Woods]

- [ORICA] The FUNCT key (present on Oric Atmos/Telestrat model) is now recognized.
  [Stefano Priore]

- [PRAV8D] Pravetz keyboard is now fully mapped and the keycaps are correctly
  displayed (see the "Input" menu) [Stefano Priore]

- [SPECTRUM] 48k machines are now able to run code in screen memory (Bug #46).
  Fixed problem with interrupt vector set to 0xffff (much more 128k games works
  now). Corrected frames per second value for 48k and 128k Sincalir machines.
  Remaped some Spectrum+ keys. Added support to load .SP snapshots. Added .BLK
  tape images support. #FF port emulation added (Arkanoid works now but is still
  not playable due to wrong timings) (Bug #47). [Krzysztof Strzecha]

- [SPECPL3E] Updated BIOS to the 1.10 version and added support for the spanish
  romset (http://www.z88forever.org.uk/zxplus3e/) [Stefano Priore]

- [TI99/4A] xtensive rewrite: The code should be more flexible and more readable.
  * Updated tms9901 code.
  * Optional floppy controller, speech synthesizer, memory extension can be
    disabled.
  * Support for super AMS, foundation, and a myarc look-alike memory extension
    cards.
  * Improved fdc emulation.
  * Better GROM and speech timings.
  * Support for multiple extension cards, and multiple GROM ports.
  * Speech synthesizer now works!!!
  * Added support for EVPC video card. [Raphael Nabet]

- [AMSTRAD CPC] Fixed RAM configuration selection, now the original Heroquest 
  will run [Kev Thacker, Richard Wilson]

- [COCO] Converted CoCo drivers to use configurable RAM sizes, and the CoCo 3
  driver now supports the 2 MB upgrade (if I knew the specs, it would be very
  trivial for me to support the 8 MB upgrade). [Nate Woods]
  
- [COCO] Fixed a bug in DMK disk image on little endian machines. (Bug #179)
  [Nate Woods]

- [PC] Fixed a bug that caused the keyboard buffer to get flooded and the
  emulated system to get paralyzed in beeping under certain situations (bug
  #151). [Nate Woods]

- [EXIDY & KC85/3] These drivers now startup with the MAME 0.56 core. [Kev Thacker]

- [EINSTEIN] Implemented more interrupts and fixed their priorities [Kev Thacker]

- [SORD M5] Cassette writing is working, but loading is not :( [Kev Thacker]

- [TS1000] The main rom file is now called zx81a.rom, instead of zx81.rom in
  order to match the other drivers in the family. [Nate Woods]

- [COCO3] Added support for Jeff Vavassour's virtual hard disk. His Color
  Computer 3 emulator comes with an OS-9 driver. [tim lindner]

- [INTV] Added collision detection (Bug #163) [Kyle Davis]

- [PDP1] Added support for perforated tape and read-in mode.  Removed the
  current image load hack, since the use of the perforated tape reader in
  read-in mode enables the user to enter programs in an historically-correct
  way.  Various additional bug-fixes and some code clean-up.
  Added control panel, variuos memory sizes, automatic multiply/divide,
  interactive typewriter display and Spacewar! supports hyperspace controls
  now. IO code has been rewrote and timings are greatly improved.
  Teletyper output can be logged to a file (via -printer switch).
  Added support for sequence break system.
  Simulation of CRT remanence. WARNING: .rim files must be run pressing
  LCTRL+ENTER to switch into read-in mode! [Raphael Nabet]

- [APPLE1] Snapshot support added - memory dumps loaded via the image MESS 
  loading interface.  The images need a header, using the following 
  format - "LOAD:xxyyDATA:".  This header enables the emulation to load the 
  data to the correct location.  [Ben Bruscella, Stefano Priore]

- [NES] Now uses battery_save() and battery_load() to save and load battery
  backed NVRAM. [Nate Woods]

- [GENESIS] Fixed broken input in some games(Bug #139). [Anthony Kruize]

- [VECTREX] Improved detection of 3D games. [Cowering]

- [sysinfo.dat] Updates to genesis and nes [Hobie Troxell]

Source Changes:
---------------
- The core is based on MAME 0.56.  This incorporates all features of the 
  update to this core.  [MAME team] 

- The core now supports configurable RAM sizes; drivers can expose RAM
  configurations (e.g. 4k, 16k, 32k etc) and on Windows, this setting is
  exposed through a command line switch -ramsize.  [Nate Woods]

- Fixed a bug that prevented introducing completely new software images when
  there was already one of that particular image type already loaded. [Nate
  Woods]

- Added some infrastructure for automated tests. [Nate Woods]

- Fixed a bug in tape handling that would cause rewind and fast forward to not
  work if the system was stopping the tape (bug #168). [Nate Woods]

- Added battery_save() and battery_load() functions to abstract handling of
  battery-backed NVRAM on cartridges. [Nate Woods]
  
- Modified osd_fopen() with OSD_FILETYPE_NVRAM so that the filename parameter
  can specify subdirectories (for use by battery_save() and battery_load().
  [Anthony Kruize, Nate Woods]

- [Windows] Fixed a bug in the core that caused the MESS process to not die if
  the close box was pressed, and the UI was disabled (bug #170). [Nate Woods]
 
- [Windows] Fixed a bug in the GUI that caused heap corruptions. [Nate Woods]

- [Windows] Fixed a bug in the GUI that caused auditing to report BIOS-less
  console systems as missing BIOSes. [Nate Woods]

- [IMGTOOL/Windows] Added wildcard support in the put command, since the
  Windows shell doesn't do this by default. [Nate Woods] 
  
- [IMGTOOL/FAT driver] Fixed bug where files would get stored into a FAT image
  without forcing the filename to upper case. [Nate Woods]

- [MacMESS] Added configurable RAM sizes and dipswitch controls to the MESS
  tab. [tim lindner]


Removed Systems:
----------------
- sfzch, snes

------------------------------------------------------------------------------
0.56

New System Drivers Supported (in no particular order):
------------------------------------------------------
Unipolbrit Komputer 2086 [Krzysztof Strzecha]
ZX Spectrum 48k Psycho (ROM modification) [Krzysztof Strzecha]


System Driver Changes:
----------------------
- [TI81] ON/OFF fixed. ROM bank switching added (port 5). NVRAM support added.
  [Krzysztof Strzecha]

- [TI85/TI86] Snapshot loading corrected. [Krzysztof Strzecha]

- [TC2048/TS2068] Aspect ratio corrected. [Krzysztof Strzecha]

- [TS2068] Support for DOCK cartridges added. Support for Z80 snapshots added.
  AY sound added. [Krzysztof Strzecha]

- [DRAGON/COCO] Improved one bit sound out. Improved support for DMK file format;
  now supports multiple sector sizes. Fixed double sided disk access in OS-9.
  Added support for the memory sense switch used to select between 64/32, 16 and
  4K. [tim lindner]
  
- [APF Imagination] Cassette loading and saving is working. Disc emulation is working.
  Added some more key definitions. [Kev Thacker]

- [ORIC] Fixed cassette loading and saving. [Kev Thacker, Mathis Rosenhauer]

Source Changes:
---------------

- The core is based on MAME 0.56.  This incorporates all features of the 
  update to this core.  [MAME team] 

- [Windows] The CONSOLE and GUI (the former MESS32) versions of MESS have been
  combined into one distribution.  [Ben Bruscella, Nate Woods, with a Huge
  thanks to MAME32 team, especially: Michael Soderstrom, Mike Haaland, and
  Chris Kirmse]

- [Windows GUI] CRC directory now configurable from MESS GUI [Nate Woods]
  
- MESSRoms now recognizes more ROMs. [Krzysztof Strzecha]

- Switch -a for MESSRoms, which allow to scan files of all sizes.
  [Krzysztof Strzecha]

- Removed extension renaming code. [Nate Woods]

- Combined OSD_FILETYPE_IMAGE_R and OSD_FILETYPE_IMAGE_RW image load types
  into OSD_FILETYPE_IMAGE. [Nate Woods]

- Converted a few drivers (namely Amstrad, Atom, Exidy, Galaksija, Microbee,
  Microtan, Sord, Spectrum, TI99) to use the new cassette loading APIs. [Nate
  Woods]

- Added new core file (led.c) for display of leds and segmented displays.
  Also converted Chess Champion drivers to use these calls. [Nate Woods]

- On the images screen before emulation starts, only the base name of an image
  will be displayed (bug 34). [Nate Woods]

- [Windows] Added support for transparent zip paths
  (e.g. C:\imgs\mule.zip\mule.atr) [Nate Woods]

- Added a call to flopdrv.c to allow the driver to manualy set the number of
  tracks and sides. [tim lindner]

--------------------------------------
0.37b15
For Lee Ward (lee@the-mothershp.fsnet.co.uk)
  *If you know Lee, please contact us......


New System Drivers Supported (in no particular order):
------------------------------------------------------
NEC PC8801SR [Shouhei Nishi]
Emerson Arcadia 2001 (preliminary) [PeT]
More Nascom1/2 official releases [JoJo]
Sharp PC1403/1403H (preliminary) [PeT]
Texas Instruments TI-81 (preliminary) [Krzysztof Strzecha]
Texas Instruments TI-86 (preliminary) [Krzysztof Strzecha]
CoCo 3 PAL [Cowering and Nate Woods]
Intellivision & Intellivision Kbd Component (preliminary) [Frank Palazzolo]
Sord M5 (preliminary) [Kev Thacker]
Einstein TC-01 (preliminary) [Kev Thacker]

System Driver Changes:
----------------------

- [ATARI7800] Fixed a bug in TIA emulation: now the driver doesn't lock 
  anymore with some ports. [Frank]

- [NC200] Keyboard reading and display memory address differences (compared 
  to NC100) implemented. [Kev Thacker and Russell Marks]

- [NC100/NC200] Changed CPU frequency to be more accurate 
  [Kev Thacker and Russell Marks]

- [PRAVETZ] Emulation of Apple2 disc controller interface (low 8D DOS and high 
  8D DOS is supported. (DOS1->1.30 for low DOS and DOS 2.10 or better for high 
  DOS) Disk images are ".DSK" and same as used by Apple2 driver. [Kev Thacker]

- [KC COMPACT] colours generated from colour rom [Kev Thacker]

- [TI85] Snapshot loading (VTI 2.0 save state files). Sound added (speaker
  connected to link port). Video engine totaly rewriten so grayscale works 
  now.  NVRAM support added. Link port emulation added (variables, memory 
  backups and screen dumps receiving, variables and memory backups sending). 
  Reset fixed. PCR emulation added.

- [APPLE I] Support for the correct chargen ROM. Character grid has now the 
  correct dimensions [JoJo]

- [AQUARIUS] Added correct palette. [JoJo]

- [ATARI5200] Changed the cart loading strategy. Many more carts work now. 
  [PeT]

- [COLECO] Changed MEMORY handlers which allows more carts to work (like aqua 
  attack and tutankham). Small fix to input handling which means Defender and 
  Centipede now work. Accurate NMI handling added which fixes remaining carts 
  like Buck Rogers, DragonFire, Zenji, Bump and Jump, etc. Also, keys are 
  configurable from the OSD for both controllers. Code cleanup.
  [Ben, Sean Young]

- [DRAGON/COCO1-2-3] Completely rewritten midframe video mode rendering, which
  now applies not just to the CoCo 3, but to all systems that use the m6847 and
  derivatives.  Also, a few effects now work that never have done before,
  including the dynamite effect in Canyon Climber and some SockMaster demos.
  Totally reworked ROM support; cartridge IO is now modular,
  the CART signal is handled better, and ROMs that don't take up the full
  address space are properly mirrored.  These changes make many more cartridges
  work properly, including Mind-Roll which is banked.  Also, properly NOP'd
  invalid memory areas, which prevented Arkanoid from running.  [Nate Woods]

- [COCO] Implemented support for the Orch90 cartridge. [Tim Lindner]

- [MSX2] The V9938 emulation is improved, added interlaced mode, fixed blitter 
  timings, sprites, and GRAPHIC 5 (SCREEN 6). The MSX2 now has a 128kB memory 
  mapper, so now many more games run. Numeric keypad emulation added. Fix to
  the K051649 (SCC) now F1 Spirit sound works. [Sean Young]

- [C128] VIC charracter rom switching and color ram banking added. [PeT]

- [C64/MAX/C128/CBM B series/C65] fixed cia6526 interrupt enabling. [PeT]

- [C64/MAX/C128/CBM500/C65] fixed 3 sprite collision issues,
  fixed interrupt enabling. [PeT]

- [C64/MAX/C128/C65] added support for alternate keyboard polling 
  (matrix i/o reversed). added second cia6526 irq(nmi) generation. [PeT]

- [C64] added support for game/exrom cartridge lines in crt files
  bankswitching fixes [PeT]
  
- [VIC20] power up strategy changed (RAM is not filled with 0xff 0x00 pattern 
  like in VICE anymore, real SRAM is indeed filled with random pattern). Power 
  up "support" for jelly monsters. Keyboard polling support for 
  second/alternate matrix io selection. Some "dipswitch" fixes. [PeT]

- [C16] TED timer 1 reloading on underrun changed. [PeT]
  ECM and Multicolor mode: cursor and character inversion disabled.
  TED sound channels simplified to generate only rectangular signals: 
  digisound working, less static, clearer sound. Now the driver uses MOS 8580. 
  [PeT]

- [C16/C64/CBM B/C128/C65] SID cleanup, realtime modifications, digisound 
  support (fx sound good now, random number generation ok). [PeT]

- [C16/C64] tape fixed. [PeT]

- [C65] Stereo enabled. [PeT]

- [SUPERVISION] nmi added (crystball bonus items fixed)
  irq changed, preliminary sound added & fix of the stereo allocation.
  Stereo enabled. [PeT]

- [PC1401] Memory configuration fix. Display on/off emulation. [PeT]

- [SPECTRUM] Interface 2 emulation. [David Robertson]

- [SATURN] Many fixes. The driver now boots up and displays splash screen, but 
  it's still non-functional. [James Forshaw]

- [SNES] Added preliminary tile-mosaic effect and fixed a small matrix bug in 
  mode 7, F-zero now renders the screen the correct way [Lee Ward]

- [LNW80] Added correct BIOS. The driver is still non functional. [JoJo]

- [EP128] Some graphics problem fixed [Kev Thacker]

- [LYNX] Preliminary sound support & fix of the stereo allocation. Stereo 
  enabled.  Added enhanced blitter modes and multiplier. Added rasterline 
  rendering, screen flipping, fixed reset and added audio/timer connection. 
  [PeT]

- [VZ200] Video code has been temporarily reverted to Jurgen's code, and 
  doesn't make use of the new M6847 features. [Nate Woods]

Source:
-------

- The main binary distribution of MESS is now a completely new win32 console
  port. Some of the benefits are: support for full screen hardware stretching
  (if you have a decent video card), and a much better command line / options
  file parsing (ported from xmame).    To create the mess.ini configuration 
  file on startup, use the -createconfig option. -showusage lists all 
  available options. [Aaron Giles, Bernd Wiebelt, Lee Ward, Ben Bruscella]

- The core is based on MAME 0.37b15.  This incorporates all features of the 
  update to this core.  [MAME team] 

- Added support for the SUPPORT_ODD_WORD_SIZES macro, needed by ApexC and PDP 1.
  [Nate Woods]

- CoCo cartridge code has been moved to its own file [Nate Woods]

- The switches "-cylinder", "-punchcard", "-punchtape" and "-parallel" are now
  recognized. At the moment "-parallel" is not used by any driver, but has been
  reserved for future expansions. [JoJo]

- Huge rewriting/rationalization of the device handling/image loading code. [Ben]

- Logging routines have been fixed. [Ben]

- Added Jurgen's tool to create generic CP/M disk images to the tools/ directory
  [JoJo]

- Imgtool's dir command now displays CRC32s. [PeT]

- MESS now supports the new TINY_COMPILE model. [Ben]

- MESSRoms now recognizes more ROMs. [PeT]

- An init function has been added to the M65CE02 CPU emulation. [PeT]

- M, D and V registers support in the state saving engine and MD register's
  behaviour fixed in the HD6309 code. [Tim Lindner]

- Z80 CPU now behaves correctly after an IRQ: this fixed a bug in PC8801 
  emulation. [Sean Young]

- Added save sate support to TMS34010 CPU. [Nate Woods]

- Many fixes to the SC61860 CPU. H is treated now as an internal register. [PeT]

- Added a static memory interface, interrupt functionality and runtime loader 
  support to the F8 CPU core. [PeT]

- Fixed the DIV1 instruction Q bit generation for the SH2 CPU. [James Forshaw]

- Alias handling removed and wont be back. [Ben]


-------------------------------------------------------------------------------  
0.37b14

This release was skipped

-------------------------------------------------------------------------------  
0.37b13

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
...

System Driver Changes:
----------------------
- Sfz (cps changer) fixed to work with the new MAME code [Ben]

- [DRAGON/COCO1-2-3] Added support for raw Program Pak dumps (use file extenion
  .ROM).  Also, implemented the 1-bit sound mode. [Nate Woods]

- [DRAGON/COCO1-2] Basic save state support added. [Nate Woods]

Other Changes:
--------------
- The core is based on MAME 0.37b13. This incorporates all features of the update to this 
  core.  [MAME team] 

- [IMGTOOL] Added special support in imgtool to separate floppy image formats from the 
  file system.  Also added a test command that only gets built in debug builds that runs 
  a set of test cases on an imgtool driver.  [Nate Woods]


-------------------------------------------------------------------------------  
0.37b12

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
N/A

System Driver Changes:
----------------------
- [KC85/4 & KC85/3] Colours fixed. Added colour flash support. Improved accuracy of video 
  redraw;  mid frame changes are now supported (only flash changes are supported at this 
  time); flashing lines in Boulderdash are reproduced now. Thankyou to Torsten Paul for 
  his information about the colour flash. Swapped CLR and DEL keys (previously you had to 
  press "delete" near Scroll Lock to delete back a char. Now you can press backspace).
  [Kev Thacker]

- [ORIC1/ORICA/TELSTRAT] Fixed .tap loading. (Conversion from .tap to internal .wav form 
  was completely broken). [Kev Thacker]
  
- [COCO 3] More work on improving video timing for mid frame video register modification. 
  Now supports mid frame palette modification, and altered the way video RAM is scanned so 
  that John Kowalski's Boink demo now runs (albeit with many glitches).  Also fixed a bug 
  that would cause the "Speed Up Poke" to still be in effect after a reset. [Nate Woods]


Other Changes:
--------------
- The core is based on MAME 0.37b12. This incorporates all features of the update to this 
  core.  [MAME team] 

- [IMGTOOL] Added support for NC100/NC200 PCMCIA Ram Card images. Card can be formatted 
  and files can be transfered to and from card filesystem. [Kev Thacker] 

- [machine/z80fmly] The Zero count/Timeout output pulse was very short. Now the pulse is
  active for longer. Required for KC85/4 colour flash to work! [Kev Thacker]



-------------------------------------------------------------------------------  
0.37b11

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Atari Lynx (preliminary) [PeT]
- KC85/3 (preliminary) [Kev Thacker]
- MSX2 and MSX2 Japanese (preliminary) [Sean Young]
- Exidy Sorcerer (preliminary) [Kev Thacker]

System Driver Changes:
----------------------

- [ATOMEB] Eproms were not being selected; now fixed. Random data is poked into address 
  8,9,$A,$B, this is used by the OS to seed the random number generator. Thanks to Kees 
  van Oss for providing this information [Kev Thacker]

- [KC85/4] Implemented keyboard hardware. Previous hack has been removed.
  Seperated machine/kc.c into machine/kc.c and systems/kc.c.
  Merged all headers into includes/kc.h, and added all defines here.
  Cleaned up some of the code, and made sure allocated memory was free'd properly.
  Implemented preliminary tape reading using ".wav". Implemented preliminary
  sound emulation. Added IO_QUICKLOAD to load ".kcc" and binary files with 128 byte
  header. Load the file then type MENU and it should appear in the list, now you
  can type the name of the program to run it.
  [Kev Thacker]

- [ORIC1/ORICA/TELSTRAT] .tap tape images can now be used. These are converted
  at run-time into .wav files, and can be used in the same way as .wav. Code based
  heavily on tap2wav by Fabrice Frances [Kev Thacker, Fabrice Frances]


- [COCO 1/2/3] Reworked m6847 synchronization and sound mux signals to make
  them much more accurate.  Fixed a bug that caused the joystick to max out all
  the time. Added a new abstraction layer for cartridge IO interfaces.  Optimized
  graphics emulation a bit.  Adjusted default controls so that joystick buttons
  will work by default.  Improved PMODE 4 artifact colors to be more accurate
  (special thanks to John Kowalski for providing color information) [Nate Woods]

- [DRAGON] Fixed DragonDOS cartrdige, so now DragonDOS works fine.  [Nate Woods]

- [NC100/NC200] Fixed PCMCIA Memory card emulation: Read/Write state can be changed using
  a dipswitch in the UI, memory card changes are saved back to memory card file. 
  Discovered more about the NC200 hardware and updated the code. Cleaned up more
  of the source, added better description about the I/O ports and seperated it into 
  common code, nc100 only and nc200 only code. Serial baud rate was not setup correct,
  now fixed.
  [Kev Thacker]

- [EP128/EP128A] Initial sound emulation. Some sampled sounds work, and simple tone is 
  working.  Fixed some interrupt problems [Kev Thacker]

Other Changes:
--------------

- The core is based on MAME 0.37b11. This incorporates all 
  features of the update to this core.  [MAME team] 

- [Intel 8271 Floppy disc controller] Writing should work now. [Kev Thacker]
 
- [src/machine/z80fmly] Added support for BSTB and ASTB inputs for Z80 PIO.
  These are required by KC85/4 and KC85/3 systems. Added code to execute callback for 
  BRDY and ARDY outputs. [Kev Thacker]

- [IMGTOOL] Fixed a bug that caused crashes when parameters to create were not
  properly specified [Nate Woods]



-------------------------------------------------------------------------------  
0.37b10

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Super Vision [PeT]
- SVI-318 and SVI-328 [Sean Young]
- Pravetz,Pravetz 8D (clone of Oric) [Stefano Priore]

System Driver Changes:
----------------------

- [ATOM] Implemented colour change support of M6847. 
  Fixed eprom box emulation. [Kev Thacker]

- [LASER110/LASER200/LASER310] Changed video hardware to use M6847 [Kev Thacker]

- [NC100] Added MENU key and fixed problems with characters being dropped
  in serial transfer [Kev Thacker]

- [NC200] Added MENU key, fixed some key assignments, fixed a memory problem.
  Blockade game now works. Fixed characters being dropped in serial transfer
  [Kev Thacker]

- [ORIC] Added VSYNC cable hardware; This can be enabled with a dipswitch 
  in the UI. Added support for Jasmin floppy disc interface; Floppy disc 
  interface can be chosen in UI: None, Microdisc or Jasmin. Improved video
  emulation; hires/text changes in the middle of a line will now work. [Kev Thacker]

- [COCO 3] Fixed the GIME Timer so that it isn't resetting on writes to
  $FF95 [Nate Woods]

- [COCO 3h] 6309 core completed; so NitrOS9 now runs.  GAME_NOT_WORKING flag
  removed [Tim Linder]

Other Changes:
--------------

- The core is based on MAME 0.37b10. This incorporates all 
  features of the update to this core.  [MAME team] 
- [IMGTOOL] Added filter support, and filters that translate endoflines, as
  well as the startings of BASIC tokenization.  Also updated the docs [Nate
  Woods]
  
-------------------------------------------------------------------------------  
0.37b9 

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
- CoCo 2B (CoCo with a M6847T1 VDG chip) [Nate Woods]
- EURO PC, IBMXT [PeT]

System Driver Changes:
----------------------

- [NC100,NC100A,NC200] Implemented serial hardware: Programs can be loaded into emulation
  using the NC's built in terminal program. Some characters are dropped, could be 
  synchronisation problems. XModem transfer not supported at this time. Implemented printer 
  emulation: Documents can be printed now. [Kev Thacker]
- [COCO 3] Basics of mid-frame video mode changing made.  Crystal City runs a bit better, 
  but some timing is still probably off.  Hi-res text will now display the underline in the 
  proper place when the lines per row is not 8.  Lo-res font now skewed one scanline, as 
  was the original machine.  Fixed Composite Monitor colors.  [Nate Woods]
- [COCO & COCO 3] Fixed the border colors when POKE 65314, [64-79;88-95] is invoked. 
  [Nate Woods]
- [ORIC] fixed a bug in microdisc memory paging. Some discs start to boot now.
  Added a dipswitch to enable/disable microdisc interface [Kev Thacker]
- [PC & compatibles] repartitioned, several problems fixed,
  major rewrite of graphic subsytems (dirtybuffering disabled temporary),
  Tandy 1000HX now uses EURO PC'S fontrom for acceptable displayment of its 8x9 characters,
  EURO PC supports CGA and MDA/Hercules (adjust it in its emulated setup) [PeT]

Other Changes:
--------------

- The core is based on MAME 0.37b9. This incorporates all 
  features of the update to this core.  [MAME team] 

- The M6847 interfaces were given a facelift, and now more correctly mimic the signals on 
  the chip.  [Nate Woods]

-------------------------------------------------------------------------------
0.37b8 

Several drivers may be broken due to the MAME memory handling changes.
And as a result, the Amiga has been temporarily removed.

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Chess Champion MK II [PeT]

System Driver Changes:
----------------------

- [ATOM] Finished floppy disc emulation. To use it you require a rom using
  the original 8271 memory locations (0x0a00-0x0a04). Linked in 6522via,
  more programs should work with it. Added printer support. 
  [Kev Thacker, Kees van Oss]

- [BBC] Added a new BBC clone (BBCB1770) to use the WD1770 disc controller.
  Much improved SAA5050 teletext support (mode 7), There is still a
  problem with the Mode 7 cursor.
  Added two new BBC clones they are BBCBP the BBC B Plus with 64K and
  the BBCBP128 the BBC B plus with 128K.
  Also Joystick support has now been added [Gordon Jefferyes]

- [AMSTRAD CPC] Added support for printer. [Kev Thacker]

- [GameBoy] Finally fixed the interrupt problem, which in turn helped a lot of carts 
  actually run now. [Lee Ward] 

- [Vectrex] Loading carts should work again. [Mathis Rosenhauer]

- [ORIC] Rewrote to use 6522via code in MESS core. Previously it had it's own 
  implementation which was not complete. Added floppy disc emulation (emulates a 
  Microdisc interface). Added support for MFM_DISK disk image type as used by 
  Euphoric. This driver uses the IO_CASSETTE device, and can be controlled with 
  the "Tape Control" menu. However, this is not working yet.
  Previous method for loading tapes has been disabled. Floppy disc emulation
  does not appear to be working fully yet. [Kev Thacker]

- [COCO/DRAGON] Added support for printer.  Optimized graphics emulation. [Nate
  Woods]

- [Studio II] added cartridge support [PeT]

Other Changes:
--------------
- The core is based on MAME 0.37b8. This incorporates all 
  features of the update to this core.  [MAME team] 

- pure DOS mode crash fixed [Ben Bruscella]

- SID6581 Approximation [PeT]
  Interface changed,
  partitioned, unused parts removed, cleaned up 
  support for multiple chips finished

- Imgtool now supports Virtual MSX Tape Archives (converts them to .cas files)
  and imgtool can convert .cas to .wav files. [Sean Young]


-------------------------------------------------------------------------------
0.37b7 

Note: .inp record/playback does still not work currently.

New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad NC200 (preliminary) [Kev Thacker]
- RCA Studio II [Peter Trauner]
- Sharp Pocket Computer PC1251 [Peter Trauner]

System Driver Changes:
----------------------

- [ATOM] Added preliminary floppy disc emulation. [Kev Thacker]

- [BBC B] Updated to use updated 8271 FDC code. Disk images can be used and games
  can be loaded and played. [Kev Thacker]
 
- [BBC B] Cleaned up the memory accessing a little. This fixed a problem with
  the DNFS rom thinking it found an econet controller. [Gordon Jefferyes]

- [SAM COUPE] Updated Sam Coupe to use WD179x code (same as WD1772). [Kev Thacker]

- [COCO] Updated CoCo and CoCo 3 drivers with new rom sets to match the actual chips 
  in the system.  coco.rom split into bas12.rom, extbas11.rom and disk11.rom, and 
  coco3.rom now must be of length 32768.  This requires a dump from an EPROM reader.  
  Fixed a bug in cassette writing.  Cassette tape controls and CoCo motor signal now 
  operate independently.  [Nate Woods]

- [C16] added SIDCARD support at address $d400 [Peter Trauner]

- [NES] new sound core. [Matt Conte]

Other Changes:
--------------
- The core is based on MAME 0.37b7. This incorporates all 
  features of the update to this core.  [MAME team] 

- Fixed write protect reporting in WD179x [Kev Thacker]

- Added "Disk Control" menu to the user interface. With this you can
  enable/disable a drive (e.g. this is comparable to connecting a disconnecting
  a drive to the real machine), set write enable/write protect of the disc,
  and selecting between disc image and real drive access. Real drive access
  is currently limited to the drivers which use the WD179x, NEC765 and Intel
  8271 floppy disc controllers. [Kev Thacker]

- Removed hard-coded disk image format in the WD179x code. This floppy
  disc controller emulation uses the same disk image access as the NEC765 and
  Intel 8271. It can now support different disk image formats, and as before
  real discs in a real drive [Kev Thacker]

- NEC765 and Intel 8271 can now use real disc access in DOS version
  of MESS. Run under pure DOS, or in a Windows 95
  DOS box mode for this to work correct. [Kev Thacker]

- Imgtool now supports CoCo cassette files (both .CAS and .WAV).  This is done
  through a framework that makes it easy to implement cassette images in
  general.  Also, the CoCo RSDOS disk handling is now a bit more tolerant
  [Nate Woods]

- Updated Intel 8271 floppy disc controller emulation. [Kev Thacker]

- CRC and sysinfo updates will now be appearing at the official MESS homepage:
  http://mess.emuverse.com
  Please send all CRC/sysinfo file contributions to Chris Henry. 
  (battlepriest@hotmail.com).

- M6510 cpu core added first write cycle for NMOS memory modifying instructions
  [Peter Trauner]

- CDP1802 cpu core [Peter Trauner]

------------------------

0.37b6 

Note: DELETE mess.cfg!

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
- Amstrad NC100 [Kev Thacker]
- CoCo 3 (with a preliminary 6309 CPU core) [Tim Linder, Nate Woods]
- SNES (preliminary) [Lee Hammerton]
- ChannelF [Frank Palazzolo, Juergen Buchmueller]


System Driver Changes:
----------------------
- SPECTRUM:  Fixed +3 disk handling [David Robertson]

- COCO 3: Fixed low resolution video so that it is sensitive to the MMU; this
  fixes a problem that made OS-9 Level 2 display garbage.  Also fixed two bugs
  that prevented horizontal scrolling from working properly [Nate Woods]

Other Changes:
--------------
- The core is based on MAME 0.37b6. This incorporates all 
  features of the update to this core.  [MAME team] 

- [DOS] File handling has CHANGED!  heres a brief description:
  MESS supports a softwarepath= global setting (in the [directories] section of mess.cfg) 
  and this is overrideable per driver (in the [driver] sections) Default for softwarepath= 
  is .;SOFTWARE
  OSD_FILETYPE_ROM uses the biospath= setting from now on (MAME rompath=) Default for 
  biospath= is .;BIOS.
  OSD_FILETYPE_IMAGE_R and _RW use the softwarepath= settings from now on, so BIOS ROMs can 
  be kept separate from carts, floppy, harddisk etc. images.
  The search paths/files are for a hypothetic system driver 'sys':
  
  extensions of carts for sys = .rom, .bin
  softwarepath = .;x:/software

  mess sys -cart cart

  ./cart
  ./sys/cart
  ./cart.zip containing cart
  ./sys/cart.zip containing cart
  x:/software/cart
  x:/software/sys/cart
  x:/software/cart.zip containing cart
  x:/software/sys/cart.zip containing cart
  ---> assume it failed, because the real extension is .bin
  ./cart.rom
  ./sys/cart.rom
  ./cart.zip containing cart.rom
  ./sys/cart.zip containing cart.rom
  x:/software/cart.rom
  x:/software/sys/cart.rom
  x:/software/cart.zip containing cart.rom
  x:/software/sys/cart.zip containing cart.rom
  ---> still not found, so image_fopen() tries .bin now
  ./cart.bin
  ./sys/cart.bin
  ./cart.zip containing cart.bin
  ./sys/cart.zip containing cart.bin
  x:/software/cart.bin
  x:/software/sys/cart.bin
  x:/software/cart.zip containing cart.bin
  x:/software/sys/cart.zip containing cart.bin

  As you can see it might take quite some time until an image is found, with two 
  directories on the path already, that's why the main softwarepath= setting should be 
  short. If you have many, different drives/paths where you store software, you better use 
  the system specific overrides like this:

  [sys]
  biospath=x:/sys
  softwarepath=x:/sys
  
  [sys2]
  biospath=roms
  sofwarepath=z:/somewhere/sys2
  
  However, if you have a 'complete set' you would be done (mostly) if you only change the 
  [directories] setting for biospath= and softwarepath= to the drive/path where your 
  mirrored files are.

  One extension to the searches that might make sense would be to also look into a 
  path/ext/cart.ext directory, that means you could have subirectories for eg. dsk, cas, 
  vz, bin or whatever the extensions of the system are. [Juergen Buchmueller, Ben Bruscella]

- Many fixes to cheat engine [Cowering]

- MESS CRC files now use 'Good' database CRCs where applicable [Cowering]

- NES now gets correct mapper info from nes.crc (if present) [Cowering]

- Genesis/Megadrive now gets correct CRC info for .smd and .md files [Cowering]

- new function osd_select_file() added [Brad Oliver]

- IMGTOOL: Fixed a bug that caused saving a file into an image to error if that
  file was in a different directory.  Also fixed a bug that would cause crashes
  when reporting certain types of errors [Nate Woods]

- CRC and sysinfo updates will now be appearing at the official MESS homepage:
  http://mess.emuverse.com
  Please send all CRC/sysinfo file contributions to Chris Henry. 
  (battlepriest@hotmail.com).



------------------------
0.37b5

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
- NES (pal) [Brad Oliver]
- Famicom [Brad Oliver]
- Mattel Aquarius [Paul Daniels]
- PCW8256, and many clones [Kev Thacker]
- PCW16 [Kev Thacker]
- PC 1512, PC1640 [Peter Trauner]
- Microtan-65 [Juergen Buchmueller]
- IBM PC [Peter Trauner]
- TRS80 alt [Juergen Buchmueller]
- Sharp Mz700, Mz700J [Juergen Buchmueller] 
- Enterprise 128 (with EXOS 2.1) [Stefano Priore]
- Some ZX Spectrum ROM mods, Spectrum 128 (Spain) [Stefano Priore]
- Sharp PC1402, PC1350 [Peter Trauner]
- Atari2600 (preliminary) [Lee Ward]


System Driver Changes:
----------------------
- NES: Now features battery support and vastly improved PPU emulation - compare Kirby and 
  RC Pro Am. 
  * Palette is no longer hardcoded - it is mathematically generated. It may need some 
    formulaic tweaking, but it's pretty accurate.  
  * Games like GI Joe Atlantis Factor are working again, the NES Test cartridge no longer 
    fails.  
  * There is a compile switch to emulate the color intensity used in Chris Covell's "Wall" 
    demo.  It's off by default because it requires 16-bit mode and the sprite blitters need 
    rewriting to support 16-bit. Still, you can enable it to see the demo run as it was 
    intended.  
  * Many mapper fixes: mapper 18 irqs should be close, mapper 19 added, the mid-20 Konami 
    mappers are nearly 100%, and some of the mappers in the 60's are much more accurate.  
  * Super Mario 3  _finally_ works! Excitebike also works again, and elite and PAL games, 
    Elite will draw properly -- but only using the PAL NES emulation.  
  * Fixed some more timing errors, Bayou Billy sine wave looks perfect now. 
  * low/high sprite priorities fixed. Super Mario 3 uses low priority sprites to mask out 
    pieces of high priority ones.
  * low-priority sprite/background transparency problem fixed (see Jaleco's Bases Loaded 3)
  * Mapper 5 is much better, although some interrupt problems remain.
  * Mappers 9/10 are _almost_ perfect.
  * Fixed mapper 16 - it was completely wrong.
  * Fixed rendering problems in mapper 68 (Afterburner 2).
  * Fixed mapper 69 (Batman: Return of the Joker).
  * Mapper 70 (arkanoid 2 j) works, but is it right? It starts up on round 0, which appears 
    to be the last round and not the first.
  * Implemented some Taito mappers (80, 82).
  * Implemented Konami VRC7, minus OPL (mapper 85).
  * Preliminary support for the zapper via a fake dipswitch. Collision detection isn't 
    working yet.
  * Modified sound core to read dpcm samples from the right place in memory. Added clock 
    specifier and read/write callbacks for register $14. NES driver now hooks into this for 
    sprite DMA. 
  * Zapper support, configurable via the fake dipswitches. Most games look for it connected 
    to the 2nd input port, not the first. Tested it with Duck Hunt and Hogan's Alley. If any 
    other zapper games don't work, let me know and I'll beat them down.
  * 4-player joypad support, also configurable via the fake dipswitches. For best results, 
    set both ports to the double setting. I tested it in Gauntlet 2 and RC Pro Am 2. Again, 
    let me know if it's busted in any other 4p games.
  * Fixed sprite priorities for the last time. I swear it's really working now. ;-) As a 
    side effect, the rendering code is a bit faster than before. 
  * More mapper fixes/additions.  
  * Added support for Famicom Disk System. Split up the main NES driver into NES and 
    Famicom. Only the Famicom supports the disk system, because that's the way it is in 
    real life. Press p1 button 3 to cycle amongst the disk sides. Once you switch a side, 
    you may need to wait a second or two for the switch to be recognized. Let me know if 
    any games fail to see the switch. Disk writing is not yet supported.
  * Added preliminary support for the Arkanoid paddle. It's pretty busted at the moment.
  * Fixed a small PPU bug regarding reads from the chr-gen ram portion of the ppu.
  * Correct display of left-most column when it has been programmatically disabled - 
    see SMB3.
  * Added some more mappers, some of which aren't working fully.
  * Fixed mapper 40 (SMB2j pirate) - it should be close to 100%
  * Fixed some issues with the disk support. It now supports that stupid padded format with 
    the useless header in addition to the other format.
  * DPCM samples fixed (now hear SMB3 in all it's steel drum glory).
    [Brad Oliver]

- COCO: Now using schedule_full_refresh() and PAK loader fixes applied [Nate Woods]

- KAYPRO: Keyboard fixed [Juergen Buchmueller]

- PCW16: emulation is fully working. To run this you need the "OS rescue disk". The system 
  rom is contained on the OS rescue disc and you will need this to install the OS. This 
  disc is available on the net, do a search to find it. [Kev Thacker]

- PC: improved PC-AT keyboard emulation to work with PCW16. Should work better with PC 
  emulation too.  Improved PC-Serial Mouse emulation to work with PCW16, improved PC FDC 
  emulation to work with PCW16. FDC now works as before but uses same nec765 code as the 
  Amstrad and Spectrum drivers. More software that programs the FDC directly should work.
  Changed PIO code in PC-XT to use 8255 emulation. Seperated PC-LPT code to be used with 
  PCW16. seperated and improved PC-Serial code. Works with PCW16 now, and interrupts are 
  set/cleared correctly. seperated pc floppy disc handling code for use with PCW16.
  Fixed tandy1000 problem, pc's changed to use pckeybrd, split pc_cga, pc_mda, pc_t1t from 
  pc and fixed atcga, xtvga init/blink problems.  changed uart8250 and pc_mouse interface, 
  realtime clock fixes and improvements (starts with current time) better vga retrace 
  emulation, fixed mouse problem in pc's (was a simple inputport configuration problem)
  [Kev Thacker, Peter Trauner]

- SPECTRUM: The border displaying code is now includes a full refresh flag. 128K port 
  decoding updated (still not exact on +3) - Sound now works on Zub 128K.
  [David Robertson]

- A7800: TIA sound update, which replaced the fixed/rand() polynome initializations to 
  ones based on the same algorithms that are used in the Pokey driver.
  [Juergen Buchmueller]

- TRS80: Split the ROMs into the 4K sizes they originally had 
  trs80.rom -> trs80.z33, trs80.z34 and trs80.zl2
  sys80.rom -> sys80rom.1 sys80rom.2 and sys80rom.3
  added an trs80alt driver for the 'R/S L2 BASIC' (its an original ROM with a shorter 
  bootstrap message and some code modifications). IO_CASSETTE now only loads *.cas files in 
  SYSTEM format and IO_QUICKLOAD is used for files in *.cmd format (disk excerpts)
  [Juergen Buchmueller]

- Commodore: m65ce02/m4510 timing corrected, fixed rtn, plp, rti, eom, added m65ce02 aug
  c65 speed improvements, ega/vga speed improvements [Peter Trauner]

- AMSTRAD: Changed video hardware code to use 6845 CRTC code.  Also added Eventlist code to 
  the Amstrad video hardware code. It will record colour changes, mode changes and crtc 
  register writes.  This means support for multi-modes on the same screen, colour changing 
  effects, and demos. There is a second method which updates between I/O writes that
  would affect the screen. The rendering method can be chosen with a compile switch.
  Also added correct opcode timings for Amstrad using new cpu_setcycletable, this
  means raster effects are now correct. Also added emulation of the Multiface hardware.
  It requires a rom (optionally loaded). You must enable it in the dipswitches. When
  enabled F1 will be the "stop" button. [Kev Thacker]

- ZX: Fixed ZX80 palette: it's black on white, and not viceversa. [Stefano Priore]

- CoCo/Dragon: Fixed a bug the CoCo 3 horizontal scroll so Crystal City is partially 
  playable now, converted the CoCo/Dragon driver to use an include file, moved PAK loading 
  code into a new src/mess/formats directory [Nate Woods]

- PDP/1: Fixed a null pointer access if no image is loaded. [Nate Woods]

- PC1401/1402/1350: Artwork support added [Peter Trauner]

- PCW: Added sound emulation. [Kev Thacker]

- PCW/CPC/SPECTRUM: Fixed some bugs in the disk image handling code used in
the Amstrad CPC, Amstrad PCW, and Spectrum+3 drivers [Kev Thacker]


Other Changes:
--------------
- The core is based on MAME 0.37b5. This incorporates all 
  features of the update to this core.  [MAME team] 

- NEC765: improved and more commands added, supports DMA access. Can handle
  images with copyprotection. A lot more software should now run on the 
  systems that use it (PCW,Spectrum, Amstrad,PC and PCW16). [Kev Thacker]

- 6522via Bug fix [Gordon Jefferyes]

- Optional ROM support. It can be used in MESS for BIOS ROMs for peripherals for which 
  you'd like to provide a valid crc32 without requiring the ROM. [Brad Oliver]

- Imgtool: Added a CRC command to imgtool so output image information in .crc format 
  basename()'s the command name when printing error info, Fixed a typo in the usage 
  examples, added a very rough imgtool.txt to document imgtool [Nate Woods]

- Added new endian macros [Nate Woods]

- DeviceIO bug fixed for most drivers [Juergen Buchmueller]

- CRC and sysinfo updates will now be appearing at the official MESS homepage:
  http://mess.emuverse.com
  Please send all CRC/sysinfo file contributions to Chris Henry. 
  (battlepriest@hotmail.com).






------------------------------

0.37b4

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
Mac 512ke [Raphael Nabet]
BBC a&b (rename BBC) [Gordon Jefferyes, Kev Thacker]
Sharp Pocket Computer (prelim) [Peter Trauner]
Lisa2 [Raphael Nabet]
heaps of c65 variants [Peter Trauner]
XTVGA, ATCGA (prelim) [Peter Trauner]


System Driver Changes:
----------------------
- MACPLUS: Keyboard support added.  Variable memory configurations used now (a variable 
  named ram_size which can be initialized to any value), and added variable ROM size, too.  
  Updated iwm.c to support Apple Diskcopy format : this will allow to exchange data with 
  real-world macintosh, and to use images from Mac sites.
  Fixed the RTC, and added a feature which initializes the Macintosh clock with the current 
  date and time.  Fixed some cosmetic sound core issues. [Raphael Nabet]

- SPECTRUM: Added support for .SCR (Screendump) files. Note that to ensure that the
  image is not immediately overwritten by the ROM initialisation routine the
  loading routine adds a short machine code press any key routine.  The Border engine 
  code now only uses those events with the correct ID
  instead of all events.  The specpls4 has been is now declared as GAME_COMPUTER_MODIFIED 
  .SCR files are now quickload files and are loaded by pressing F8.  The 128K machines are 
  now defined as GAME_NOT_WORKING because of the crashes when running 128K files.
  [David (aka Peter) Robertson]

- CoCo3: Now supports LPR field on INIT1 GIME register when in graphics modes, 
  fixed a bug that prevented video updates in hires 4-color modes. 
  Fixed high speed timer to have the correct speed.  Subtle tweaks to interrupt handling.  
  Special thanks to John Kowalski for info. [Nate Woods]

- CoCo/Dragon: Now supports memory size SAM register, removed 2nd fire button from 
  joysticks (only CoCo 3 has this). Video display now draws border. [Nate Woods]

- CoCo/CoCo3/Dragon: Optimized screen refresh routines accross the entire family.  
  Routing cassette audio to the speaker (AUDIO ON command in basic) now supported.  
  Documented more references about the CoCo hardware, as well as added docs for hardware 
  enhancements not supported yet. Interrupt timings now relative to clock cycles for more 
  exact timing.  Also, much more documentation. [Nate Woods]

- UK101/Superboard: Tidy up palette code, Caps lock implemented properly, Memory config. 
  4K, 8K and 40K. Added MC6850 ACIA. Cleaned up keyboard port_bits, Tape load.
  Hand crafted a superboard II graphics rom. Source YC July 82.  Swapped monitors roms, 
  wrong way around. Superboard video is 64 by 16 Max. UK101 video is 32 by 25 Max.
  To load tape images from Basic, type "LOAD", wait for the program to load, press space, 
  then RUN, LIST, etc. Some images should be loaded from the monitor, asteroids, 
  asteroids+ and scramble. When in the monitor, press L and wait for the program to load 
  and run. [Paul Daniels]

- NASCOM: Tidy up palette code. Nascom1 tape load. Memory config. 1Kb, 16Kb, 32Kb, 40Kb at 
  1000.  Test all known software. .cas done. .bin done. .nas done. Cleaned up keyboard 
  port_bits. [Paul Daniels]

- Apple1: Cleaned up code. Tidied up colour palette. Added memory configs. [Paul Daniels]

- Jupiter ace: Tidied up colour palette. Added memory configs. [Paul Daniels]

- BBC: The Hi-Res video modes have been improved with  full 6845 CRTC emulation, and 
  preliminary Teletext support has now been added. [Gordon Jefferyes]

- CBM: added c128 resolution switching, added c65 resolution switching, interlace support
  renamed c65 system to c65e, changed c64gs to pal. [Peter Trauner]

- PC: added vga resolution switching [Peter Trauner]



Other Changes:
--------------

- The core is based on MAME 0.37b4. This incorporates all 
  features of the update to this core.  [MAME team] 

- TOOLS: Created an "osdtools.h" file that implements cross platform defininitions for 
  the tools (dat2html, imgtool, etc) [Nate Woods]
  added a info function (info is showed before the file listing in the dir command), added 
  extract command to allow conversion between file formats with create and extract 
  functions, added stream_clear to clear files (fopen(...,"w+")), added some parameters to 
  the create and put commands, c64crt c64 cartridge file support, more for professional 
  use (c64 cartridge dumper) and t64 c64 tape format support. [Peter Trauner]

- Implemented a new palette in tms9928a, computed from TI datasheet.  [Raphael Nabet]

- Cassette/wave code: Adds the ability to mute the cassette audio output.  This is done 
  by setting bit 1 of the device status.  [Nate Woods]

- SC61860 CPU core [Peter Trauner]

- Fixed CLR bug in m6809 core [Nate Woods]

- Using the C 68k core. Macplus now works.

- Extensive CRC updates.
  [Chris Henry, Stefano Priore, Cowering]
  SysInfo.dat documentation update 
  [Chris Henry]
  Please send all CRC/sysinfo file contributions to Chris Henry. 
  (battlepriest@hotmail.com).



---------------------
0.37b3

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
Spectrum +2 (France) [David Robertson]
Spectrum +2 (Spain) [David Robertson]
Spectrum +3 (Spain) [David Robertson]
BBC Micro Model B (preliminary) [Gordon Jefferyes]
Vic20 with IEEE488 interface cartridge [Peter Trauner]
PCW [Kev Thacker]


System Driver Changes:
----------------------
- VECTREX: Support for true color artwork added [Mathis Rosenhauer]

- SPECTRUM: .TAP loading on TS2068 now works, and fixed bug where the last byte 
  in .Z80 blocks was not decoded - Head Over Heels now works. 
  .TAP files now classified as cassettes files not snapshots because of how they are 
  used - this now means they appear on Tape Control menu, corrected clock speed of 
  TS2068, fixed Issue 2/3 dipswitch implementation, dipswitch to enable/disable disk 
  drives on +3 and clones (disabling disk drives on +3 correctly shows machine as +2a 
  on start up menu). implemented TS2068/TC2048 64 column and hires modes, rewrote 
  Spectrum 128 screen refresh to use plot_pixel for a major speedup. 
  Fixed bug that created a new file if trying to use a non-existant .TAP file, modified 
  border size based on the comp.sys.sinclair FAQ (48 pixels at the left, right and top 
  and 56 pixels at the bottom of the screen, initial support for border colour - fills 
  entire border with last the outputted colour, border colour set when loading snapshots.
  Added a Border Engine to all Spectrum machines. [David Robertson]

- C65: added m4510 core, memory management changed and keyboard finished, DMA 
  controller enhanced, quickloader fixed, added floppy simulation for devices 10,11, 
  very early support of special c65/vic3 videomodes, (on the funet disks are only some 
  graphic demos, works when you change disk access (bload, loadiff) to:
  bload "name",u10
  loadiff "name",u10
  (load with dload"name",u10 or load"name",10)
  (and change the names to 8 letters in msdos.  [Peter Trauner]

- C16: emulated flashing mode of the TED chip, activated and fixed blinking. 
  Disabled blinking in multicolor modes (winter edition) [Peter Trauner]

- PC series: Changed osd_modify_pen calls to palette_change_color.  Emulation of the 
  EGA/VGA palette registers in tandy1000 video driver, vga palette management fix,
  changed drivername to t1000hx (rename your romset from tandy1t), added eeprom 
  support (fixes disk support), added turboswitch functionality, changed frequency 
  to 8 MHz, removed some dipswitches.  [Peter Trauner]

- CoCo/Dragon/MC-10: Better .CAS file support, now supports cassette writes, 
  slightly better .PAK file support. [Nate Woods]

- CoCo: Now uses the standard wd179x code.  As a result, src/mess/machine/cocodisk.c 
  is not necessary anymore, implemented 63.5usec horizontal sync interrupt 
  (Dragon/CoCo/CoCo 3), implemented secondary fire buttons for both joysticks 
  (Dragon/CoCo/CoCo 3), keyboard interrupt (CoCo 3). [Nate Woods]

- CBM: cbm floppy drive simulation names for file system access changed, floppy disk 
  simulation for pet series (not working with first pet and superpet), added 8096 memory 
  expansion to cbm80 series, and cartridge/rom support in pet and cbmb series.
  [Peter Trauner]

- MTX: Cassette support can now handle multiple files in the same image, and country cde 
  (CTYLST) Dipswitches now implemented. [Lee Ward]

- Updated Amstrad and Enterprise driver with correct aspect ratio, updates to the KC85/4 
  driver including code to emulate the keyboard - works by poking OS system variables.
  [Kev Thacker]


Other Changes:
--------------

- The core is based on MAME 0.37b3. This incorporates all 
  features of the update to this core.  [MAME team] 

- Bug fix in wd179x controller [Nate Woods]

- Bug fix in the wave handler (when image is closed, osd_fclose() is now called 
  on the file descriptor [Nate Woods]

- Bug fix in the tape control that cause the control to give percentage erros when 
  using *.cas files. [Nate Woods]

- ImgTool: Preliminary PC Hard drive driver, better error reporting, a new command 
  ('good') that functions as a rom sorter (a la GoodNes).  CRC information is retrieved 
  from the standard MESS CRC files, the 'crc' command is replaced with 'info'.  This new 
  command will return data regarding the image if MESS's CRC files are aware of the 
  image. dir and del now can take multiple arguments. [Nate Woods]

- Extensive CRC updates.
  [Kurunir, Chris Henry]
  SysInfo.dat documentation update 
  [Chris Henry]
  Please send all CRC/sysinfo file contributions to Chris Henry. 
  (battlepriest@hotmail.com).



----------------------------------------------------------------
0.37b2

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------

Spectrum +4 (48K) [David Robertson]
Inves Spectrum 48K+ [David Robertson]
TK90x Color Computer [David Robertson]
TK95 Color Computer [David Robertson]
Timex Computer 2048 [David Robertson]
Timex-Sinclair 2068 [David Robertson]
Spectrum +2 [David Robertson]
C128 Italian [Peter Trauner]
Vic64s (c64 swedish version/or c64 with swedish expansion kit) [Peter Trauner]
Vic20swe (vic20 with swedish expansion kit) [Peter Trauner]
Cbm40pal, Cbm80pal, superpet [Peter Trauner]
Nascom2 [Paul Daniels]
Memotech MTX512 [Lee Ward]
Acorn Atom (preliminary) [Paul Daniels]
Sam Coupe (preliminary) [Lee Hammerton]


System Driver Changes:
----------------------
- PC: Mouse now very usable, PC CGA scrolling support in 320x200x2 fixed 
  (Boulderdash), Tandy1000 Graphics memory switching enchanced (Lemmings), 
  Joystick changes (slow autocenter remaining), added xtcga with mf2 keyboard 
  and turbo switch, split the xtvga in xtega (vga with ega monitor), and added 
  palette handling to ega/vga. [Peter Trauner]

- C364: preliminary speech added (similar hardware in the C64 
  cartridge Magic Voice, used in few programs). [Peter Trauner]

- C128: Esc-x to switch c128 to 40 column mode. Keypad enter to switch 
  emulator to 40 column mode. In the input keys configuration menu you 
  should find several key assignments with normal (not reversed)T.  Change 
  these to another key, and the normal T will work. (in the system file
  these keys are disabled, until I find a better solution) [Peter Trauner]

- MACPLUS: driver boots (must use the 68k C core) [Nate Woods]

- SEGA MASTER SYSTEM: Rewrite of the SMS video code, so quite a lot of games with
  interrupt problems or corrupt graphics run fine now. [Charles MacDonald]

- SPECTRUM: Added support for 128K .SNA and .Z80 files, ensured that the 48K Basic 
  ROM is paged in when running 48K snapshots on 128K machine (for improved 
  reliability and access to the default character set), changed +3 initialisation, 
  128 and +3 now set 0x4000-0x7fff to bank 5 (Now not changed if switching to shadow 
  screen), cleaned up spectrum_plus3_update_memory, fixed bug in decoding uncompressed 
  v2+ .Z80 files, and changed running speed of 128K Machines to 3.54690MHz
  [David Robertson]

- COMMODORE: cbmdrive (memory freeing) fixed, cia6526 tod fix, c128fra fix, 
  50 hertz machines now really have 50 hz video refresh, c16 1551 simulation fixed 
  [Peter Trauner]

- DRAGON series: Now supports a new variant of the .PAK file format for snapshots.
  [Nate Woods]

- TI99:  Mini Memory Support (rename minimemc.bin to minimemm.bin for it to 
  work correctly), fixed a bug in banked roms when a hard reset (F3) is done, rom 
  images are now identified by their filename extensions (image order isn't important 
  anymore), no need to use NUL when no grom image, both alt -> fctn and both ctrl -> ctrl 
  added, and new rom image extensions (.c .d .m .g .crom. drom. mrom .grom).
  [Norberto Alfredo Bensa]

- A7800: Support for bankswitched carts and carts with extra RAM, added 160B video mode, 
  increased screen height to fix clipping at bottom, updated header format (details can be 
  found in machine/a7800.c), added support for light gun trigger (not the light gun 
  targetting yet, just the trigger), and removed requirment for a cartridge (since the 7800 
  starts in the BIOS it doesn't technically need a cartridge) [Dan Boris]




Other Changes:
--------------

- The core is based on MAME 0.37b2. This incorporates all
  features of the update to this core.  [MAME team] 

- TOOLS: Disk Utility added (mkhdimg.exe) which will create variable sized HD images 
  for use in MESS.  Can create images from 9,216 bytes to 142,606,848 bytes 
  without problems.  The Western Digital 1004A that is emulated in MESS is 
  limited to 1024 Cylinders and 16 heads. The sector size is limited to 512 
  bytes as well as the sectors per track being limited to 17, this is also 
  due to the WD1004A's limitations. [Randy Rains]

- TOOLS: Generic image tool added (imgtool.exe) with the following features:
  *MAME/MESS style driver architecture; where the image formats are contained in drivers.  
   Currently, the only driver is for CoCo .DSK disk images, but there could be more.
  *Runs on the command line.
  *Commands for listing image contents, retrieving and storing files.
  *Supports images in .ZIP files.
  *"Engine" is separate from the "shell"; which gives the potential for front ends for 
   those who don't like command lines. [Nate Woods]

- Disk write support for AMSTRAD CPC [Oscar Martín González]

- Wave timer fix [Oscar Martín González]

- m6510t/m7501/m8502 CPU cores added [Peter Trauner]

- Extensive CRC updates.
  [Kurunir, Chris Henry]
  SysInfo.dat documentation update 
  [Chris Henry]
  Please send all CRC/sysinfo file contributions to Chris Henry.
  (battlepriest@hotmail.com).





----------------------------------------------------------

0.37b1

Note: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
ZX Spectrum 128	   [David Roberson]
ZX Spectrum 128 +2 [David Roberson]


System Driver Changes:
----------------------
- PC Mouse now very usable. [Peter Trauner]

- COCO/DRAGON now supports two distinct joysticks. [Nate Woods]

- SPECTRUM: Fixed .TAP loading for Spectrum +3, added Dipswitch for action
  on end of tape, and snapshot files are now classifed as snapshots not
  cartridges [David Robertson]

- MSX: added a detection routine which can detect most types of megaROMs.
  [Sean Young]

- VTECH: driver update to use V1.2 BASIC ROMs with the Laser 110, 200 and
  Texet 8000. [Juergen Buchmueller]



Other Changes:
--------------

- The core is based on MAME 0.37b1. This incorporates all
  features of the update to this core.  [MAME team]

- Alias bug fix [Norberto Alfredo Bensa]

- Systems with no ROMS but a ROM_REGION defined (eg Genesis, NES) are now
  correctly identified.  Clones with no differing roms from the main set
  are correctly identified (eg. the Laser 210 clones etc.)
  [David Robertson]

- Extensive CRC updates.
  [Sean Young, Chris Henry, Gerardo Jorrin, Peter Trauner, Cowering]
  SysInfo.dat documentation update
  [Thierry Schimbi, Chris Henry, Kev Thacker, Raphael Nabet]
  Please send all CRC/sysinfo file contributions to Chris Henry.
  (battlepriest@hotmail.com).



----------------------------------------------------------
0.36

Note1: MESS is now developed and distributed as a MAME source
override, hence the MESS version number leap ;-)
Note2: .inp record/playback does still not work currently.


New System Drivers Supported (in no particular order):
------------------------------------------------------
Vectrex  [Mathis Rosenhauer, Chris Salomon]
Atari 800/5200  [Juergen Buchmueller]
Apple II Family  [Mike Balfour, Brad Oliver]
PDP/1  [Chris Salomon]
Sega Master System  [Mathis Rosenhauer, Brad Oliver]
Sega GameGear  [Mathis Rosenhauer, Brad Oliver]
Kaypro CP/M  [Juergen Buchmueller, Benjamin C. W. Sittler]
Bally Astrocade  [Frank Palazzolo]
Amstrad CPC  [Kevin Thacker]
Atari 7800  [Dan Boris]
Commodore Amiga  [Ernesto Corvi]
Dragon 32  [Mathis Rosenhauer]
EACA Colour Genie 2000  [Mathis Rosenhauer]
Enterprise 128K  [Kevin Thacker]
KC Compact  [Kevin Thacker]
PC-Engine / Turbo Graphics-16  [Charles Mac Donald]
PC-compatible (MDA, CGA)  [Juergen Buchmueller]
RA+A Spectrum I+  [Mathis Rosenhauer]
TI-994a  [Raphael Nabet]
ZX-Spectrum 48k  [Allard van der Bas]
KIM 1  [Juergen Buchmueller]
Tandy 1000TX (PC clone)  [Juergen Buchmueller]
Coco 3  [Nate Woods]
ORIC 1  [Paul Cook]
ORIC Atmos  [Paul Cook]
Vic20 (NTSC)  [Peter Trauner]
Vc20 (Vic20 Pal)  [Peter Trauner]
Commodore 16  [Peter Trauner]
Commodore Plus4 NTSC  [Peter Trauner]
VZ 200  [Juergen Buchmueller]
VZ 300  [Juergen Buchmueller]
MSX  [Sean Young]
GameBoy (preliminary)  [Carsten Sorensen, Marat Fayzullin,
                       Pascal Felber, Hans de Goede,
                       Juergen Buchmueller]
TI99_4 (not working)  [Raphael Nabet]
CP400  [Nate Woods]
AdventureVision  [Dan Boris]
Commodore64(NTSC&pal), Max  [Peter Trauner]
Apple1, Nascom1  [Paul Danials]
MicroBee (32,56k)  [Juergen Buchmueller]
zx80, zx81, ts1000, aszmic, pc8300, pow3000
  [Juergen Buchmueller]
laser 110, 210, 200, 310, 350, 500, 700, tx8000
  [Juergen Buchmueller]
cpc464, cpc664  [Kev Thacker]
kc85_4 (preliminary)  [Kev Thacker]
a400, a400pal (16K RAM only)  [Juergen Buchmueller]
spectrum plus3  [Kev Thacker]
a800pal  [Juergen Buchmueller]
sys80  [Juergen Buchmueller]
c364, c64gs  [Peter Trauner]
ti99_4e, ti99_4ae  [Raphael Nabet]
Atari800xl (not working)  [Juergen Buchmueller]
Philips P2000t/m  [Paul Daniels]
Tandy MC-10  [Nate Woods]
Uk101, SuperBoard (Note: have SHIFT pressed when typing)
  [Paul Daniels]
MSX Japanese and Korean  [Sean Young]
Commodore 65  [Peter Trauner]
Commodore 128  [Peter Trauner]
Commodore PET2000/CBM2000  [Peter Trauner]
Commodore CBM3000  [Peter Trauner]
Commodore CBM4000  [Peter Trauner]
Commodore CBM8000  [Peter Trauner]
MacIntosh Plus  [Nate Woods, Ernesto Corvi]
CPS Changer - Street Fighter Zero  [MAME team]
Commodore B series  [Peter Trauner]
MSX1 UK  [Sean Young]
C16 (c1551)  [Peter Trauner]
Plus4 (c1551)  [Peter Trauner]


System Driver Changes:
----------------------
- Apple2 driver keyboard fix 	 [Juergen Buchmueller]

- Apple2 driver changed to use 'normalized' character and graphics
  layout.  The scanlines are now done by the hosts video code.
  [Juergen Buchmueller]

- ColecoVision Video refresh fixed. [Sean Young]

- Adjusted timing of NES clock to be accurate. [Brad Oliver]

- Preliminary Mockingboard support for the Apple II. [Brad Oliver]

- Genesis sound improvements. [Gareth Long]

- Several drivers have had compatibility improved (eg. NES, Genesis and Coleco)

- The Apple II drivers have been fleshed out a little more. The //e
  family now works. The disk emulation is significantly faster as well.
  There is still plenty of work to be done though. [Brad Oliver]

- Bug fixes to the TI9928a video code. This affects the ColecoVision and the
  TI-994a drivers. [Raphael Nabet, Sean Young]

- NES psg frequency is now correct. [Brad Oliver]

- Genesis now features preliminary FM sound. [Gareth Long, Tatsuyuki Satoh]

- Increased Genesis compatibility. [Gareth Long]

- Memory allocation fix in the NES driver [Juergen Buchmueller]

- Commodore SID emulation!  [Peter Trauner]


Other Changes:
--------------

- [DOS] Images specified at the command line must now be accompanied by the device they
  are to be attached to, and will not be loaded unless the device is specified *and*
  supported by that system.  Eg, to attach a cartridge for the NES, you must specify:
  MESS nes -cart galaga.nes
  This may affect the usage of frontends, however it brings the MESS command line
  into sync with the well accepted MAME convention for command line usage.  See mess.txt
  for options and usage.

- Added support to automagically append or replace extensions for files
  opened with image_fopen(), which means, if opening a given filename
  fails (also from the optional clone_of parent driver), the code replaces
  or appends the next available extension and tries again.   Therefore, there
  is no need to actually supply the file extension to the command line.
  [Juergen Buchmueller]

- The core is based on MAME 0.36 final. This incorporates all
  features of the update to this core.  [MAME team]

- New option -listdevices. Use this to obtain valid device names for use at the command
  line to attach images to the system.

- Extensive CRC updates.
  [Sean Young, Chris Henry, Gerardo Jorrin, Peter Trauner, Cowering]
  SysInfo.dat documentation update
  [Thierry Schimbi, Chris Henry, Kev Thacker, Raphael Nabet]
  Please send all CRC/sysinfo file contributions to Chris Henry.
  (battlepriest@hotmail.com).

- Small bug in the 6522 emulator fixed. [Gordon Jefferyes]

- Important inclusions for this release:
  *wave sound interface and IODevice handler
  *speaker sound driver (replaces the buzzer code)
  *preliminary file manager
  *mess_printf() which checks for gui_host
  Check the UI (TAB) for handling options for most of the above.

- Generic M6847 code  [Nate Woods]

- Wd179x disk access update.  The correct sector size is now
  calculated for the nec765 real FDD access.  Now it is calculated
  from sector size. Loading from real disc works on Enterprise
  emulator.  [Kev Thacker]

- void via_set_clock(int which,int clock); added to 6522via.c.  This
  can be called after via_config() to change the clock, otherwise the
  clock speed of CPU1 is used. [Mathis Rosenhauer]

- mess/msdos.c & mess/msdos.h created for MESS DOS specific functions.
  Note: Each port is now responsible for handling these functions.


- GAME_ALIAS flag added.  Use this when specifying a clone system
  which requires the same romset as another. [Juergen Buchmueller]

- System documentation is now contained in sysinfo.dat and
  sysinfo.htm.  Use dat2html to generate sysinfo.htm from sysinfo.dat
  [Chris Henry, Juergen Buchmueller, Ben Bruscella]

- You can now specify switches on the commandline in which case every
  image name following them goes to that respective slot, regardless
  of it's extension.  See mess.txt for some examples
  [Peter Trauner, Juergen Buchmueller]

- [DOS] New options for IMAGES to be opened, namely OSD_FOPEN_READ,
  OSD_FOPEN_WRITE, OSD_FOPEN_RW, and OSD_FOPEN_RW_CREATE.  Check
  mess.h for a description of what they are used for.  Be sure to use
  these semantics when handling read/write files.
  [Juergen Buchmueller]
- slight changes to the PDP1 driver.

- [DOS] TI99 keyboard fix! [Raphael Nabet]

- System ROM (Image) name matched from CRC database file on startup.
  (file stored in CRC directory)

- You can now specify in MESS.CFG the *exact* directory a rom is
  which you want to run.  no longer necessray to have a directory with
  the same name as the system [Juergen Buchmueller]

- Zipped cart and image support added. To use, make sure that the zip has the
  same name as the file in the zip. (eg) for a coleco CART called
  "venture.rom", zip to "venture.zip".  When running MESS, type "mess coleco
  venture.rom".  MESS will then load "venture.rom" from "venture.zip".  Any
  system roms can also be zipped and placed anywhere in you ROMPATH. (eg)
  coleco.rom in coleco.zip.
  [Ben Bruscella]

- GAME_COMPUTER flag added.  Use this to specify that the system requires
  full keyboard emulation.  Emulated Computer systems now use the
  scroll_lock key to toggle the keyboard emulation.  When on, MAME keys
  (such as "P" for pause) are disabled, until toggled with the scroll_lock.
  [Juergen Buchmueller]


- [DOS] MAKEFILE/compilation changes. To compile MESS, simply make sure you
  can compile MAME. Then, apply the MESS source over-ride and:

   1. Rename MAKEFILE to MAKEFILE.mm
   2. Rename MAKEFILE.MES MAKEFILE
   3. Type MAKE


- There have been major changes to the Driver structures and loading procedure.

*Here is an overview:

* Every game driver's struct GameDriver (src/mess/systems/*.c) is now
defined using one of four macros COMP/COMPX or CONS/CONSX.
COMP is for computers and CONS is for consoles. The X versions allow
specifying additional flags (GAME_NOT_WORKING ect.)

* Every game driver specifies it's peripherals in an array of
"struct IODevice" elements.

* rom_load and rom_id fields were moved into that list, together with
the number of devices and the known file extensions for images of that
type.

* MAME's src/driver.h now only contains one pointer to this list of
devices, all of MESS' extra fields are gone.
Old:
#ifdef MESS
    int (*rom_load)(void);
    int (*rom_id)(const char *name, const char *gamename);
    const char **file_extension;
    int num_of_rom_slots;
    int num_of_floppy_drives;
    int num_of_hard_drives;
    int num_of_cassette_drives;
#endif

New:
#ifdef MESS
    const struct IODevice *dev;
#endif


* The global rom_name[], floppy_name[], hard_name[] and cassette_name[]
arrays are gone! Instead each machine driver (src/mess/systems/*.c)
should specify an init function for every device it supports.
This init function is called during the startup with an id (0 to max
instances of the device - 1) and a filename.

* rom_load is called very early when a driver is started.
It is the 'init' function for the device type IO_CARTSLOT, so the
previous statement applies here too.

* the rom_id function pointer moved into the struct IODevice too.
Every device can have a id function, so if it is possible to identify
eg. a floppy disk, harddisk, cassette ect., you should provide the
identifying functions and put them in this field in your systems/driver code.
The id function return value is sort of TRUE/FALSE, ie. non zero
means image is ok for this device, zero is not recognized.

* The IODevice contains an "void (*exit)(int id);" entry, so each
driver could (and probably should) handle shutting down the various
device instances.
The exit entries are called from src/mess/mess.c exit_devices(),
which is called from src/mame.c shutdown_machine().

* Startup handling moved from src/mame.c to src/mess/mess.c
In the first stage load_image() is called.
The images specified on the command line are parsed in mess.c now, and
a list of "struct ImageFile" entries in the GameOptions is set.
This struct contains a "char *name" and an "int type", where type should
be set to one of the IO_CARTSLOT, IO_FLOPPY ect. values.
GUI ports could use this to store some file selection lists together with
the type of files selected.
The DOS port stores image names from the command line (*argv) in this
array, and the type of image is determined this way:
1st: user specified a type using a switch before a (list of) name(s).
     For DOS this looks like "mess system -flop test -cart rom1 -cart rom2"
2nd: the extension of the filename matches one of the MessDevice entries
     of the driver which is started. So if a driver defines "cas" for
     it's IO_CASSETTE device and "dsk" for it's IO_FLOPPY device, the
     command line "mess driver a.dsk b.cas" will be sufficient.

* In the second stage during startup, the get_files() function is called
and images are sorted into some (static) arrays of names in mess.c.
This is to allow easier/faster access to them and maybe useful for
swapping the names and calling init_<device> again.

* The third stage now walks through the list of devices of the driver
which is to be started and calls it's init functions with the the
names from the arrays. If the driver returns non zero, the startup
process is terminated here.


----------------------------------------------------------
0.2b4

Note that this is the first public beta - not all features are working yet.

New drivers supported (in no particular order):
-----------------------------------------------

Vectrex [Mathis Rosenhauer, Chris Salomon]
Atari 800/5200 [Juergen Buchmueller]
Apple II Family [Mike Balfour]
PDP/1 [Chris Salomon]
Sega Master System [Mathis Rosenhauer, Brad Oliver]
Sega GameGear [Mathis Rosenhauer, Brad Oliver]
Kaypro CP/M [Juergen Buchmueller, Benjamin C. W. Sittler]
Bally Astrocade [Frank Palazzolo]


These drivers have improved GRAPHICS:
-------------------------------------

- The TRS-80 now uses the real character prom data. [Mike Balfour]



These drivers have new or improved SOUND:
-----------------------------------------

- NES psg frequency is now correct. [Brad Oliver]

- Genesis now features preliminary FM sound. [Gareth Long, Tatsuyuki Satoh]



Other drivers changes:
----------------------

- General bug fixes to the TRS-80, Colour Genie. [Juergen Buchmueller]

- Increased Genesis compatibility. [Gareth Long]



Changes to the main program:
----------------------------

- Code is in sync with MAME 0.33 final + some extras. All bug fixes to the core
  are incorporated.

- New 6502 core with support for the 65c02 and 6510 variants. [Juergen Buchmueller]

- The 6809 core has been tweaked to increase cycle counting accuracy, needed
  for the Vectrex. [Mathis Rosenhauer]

- The core key functions have been abstraced to make better use of the
  keyboard. This is especially handy for computer emulations. [Aaron Giles]



Source:
-------

- The DOS version is now compiled with GCC 2.8.1 and using Allegro 3.0 + WIP
  (30th May).

- [DOS] To improve portability, the makefile is more conservative, using the
  -pedantic and -Wshadow switches. Note that to compile with these switches,
  several changes had to be made to allegro.h, which is included.


----------------------------------------------------------
0.1

First version, based upon MAME 0.31 source

New drivers supported (in no particular order):
-----------------------------------------------

Colecovision [Mike Balfour]
NES [Brad Oliver]
TRS-80 [Jurgen Buchmueller]
Colour Genie [Juergen Buchmueller]
Genesis [Gareth Long] 
