| CptDeltay | Function (ROM Call 0x1C2)

graphing.h

unsigned char CptDeltay (GR_WIN_VARS *);

Computes the system variable Δy.

Given a pointer to a GR_WIN_VARS structure (usually gr_active or gr_other), CptDeltay computes the system variable Δy.
This function calls ck_valid_float and CkValidDelta, among others.

Uses: ck_valid_float, _bcd_math
Used by: cmd_drawinv, GT_ValidGraphRanges, GZ_Square, Regraph