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cc65/libsrc/nes/_scrsize.s

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;
; Ullrich von Bassewitz, 2003-04-14
; Stefan Haubenthal, 2007-01-21
;
; Screen size function
;
.export screensize
.include "nes.inc"
.include "get_tv.inc"
.proc screensize
jsr _get_tv
ldx #charsperline
ldy #screenrows
cmp #TV::NTSC
beq nopal
dey
nopal: rts
.endproc