6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2024-10-01 00:57:11 +00:00
Code Issues Projects Releases Wiki Activity

return the hardware tv system, not the ROMs one

Browse Source 
git-svn-id: svn://svn.cc65.org/cc65/trunk@1099 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cpg 2001-11-06 01:22:54 +00:00
parent d10a647baf
commit 56d98bbb93
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
libsrc/atari/tvtype.s
View File

@ -1,9 +1,11 @@
;
; Christian Groessler, December 2000
; Christian Groessler, November 2001
;
; unsigned char get_tv(void)
;
; returns the TV system the machine is using
; 0 - NTSC
; 1 - PAL
;
@ -12,8 +14,13 @@
.proc _get_tv
lda PALNTS
lda PAL ; use hw register, PALNTS is only supported on XL/XE ROM
ldx #0
and #$0e
bne @NTSC
lda #1
rts
@NTSC: txa
rts
.endproc