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Add get_tv.s

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This commit is contained in:
Karri Kaksonen 2022-03-22 21:28:35 +02:00 committed by mrdudz
parent 9cf4f166c0
commit 218c98d4d5
1 changed files with 26 additions and 0 deletions
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26
libsrc/atari7800/get_tv.s Normal file
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;
; Stefan Haubenthal, 2007-01-21
;
; unsigned char get_tv (void);
; /* Return the video mode the machine is using */
;
.include "atari7800.inc"
.include "get_tv.inc"
.importzp tmp1, tmp2
.import _paldetected
;--------------------------------------------------------------------------
; _get_tv
.proc _get_tv
lda _paldetected
beq ntsc
lda #TV::PAL
rts
ntsc:
lda #TV::NTSC
rts
.endproc