; ; Christian Groessler, July 2004 ; ; unsigned char get_tv(void) ; ; returns the TV system the machine is using ; 0 - NTSC ; 1 - PAL ; .include "atari.inc" .include "get_tv.inc" .proc _get_tv ldx #TV::NTSC ; Assume NTSC lda PAL ; use hw register, PALNTS is only supported on XL/XE ROM and #$0e bne @NTSC inx ; = TV::PAL @NTSC: txa ldx #0 ; Expand to int rts .endproc