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cc65/libsrc/c128/get_tv.s

26 lines
484 B
ArmAsm

;
; Ullrich von Bassewitz, 2002-12-03
;
; unsigned char get_tv (void);
; /* Return the video mode the machine is using */
;
.include "get_tv.inc"
.include "c128.inc"
;--------------------------------------------------------------------------
; _get_tv
.proc _get_tv
ldx #TV::PAL ; Assume PAL
lda PALFLAG
bne pal
dex ; NTSC
pal: txa
ldx #0
rts
.endproc