Changes
/* Firmware */
call SCR_NEXT_LINE
ACTUAL #BC26 ROUTINE FOLLOWS:
ld a,h:add #08:ld h,a:and #38:ret nz
ld a,h:sub #40:ld h,a:ld a,l:add reg1*2:ld l,a:ret nc ;reg1= CRTC reg.1 value
inc h:ld a,h:and #07:ret nz
ld a,h:sub #08:ld h,a:ret
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