mirror of
https://github.com/peterdell/wudsn-ide.git
synced 2024-12-22 09:29:44 +00:00
18 lines
383 B
NASM
18 lines
383 B
NASM
|
; WUDSN IDE example ATASM source file
|
||
|
|
; Supports hyperlink navigation includes.
|
||
|
|
.include "..\Macros.inc"
|
||
|
|
|
||
|
|
* = $2000 ;Start of code
|
||
|
|
.opt ILL ;Enable use of illegal opcodes
|
||
|
|
|
||
|
|
.if as
|
||
|
|
start sei ;Run address
|
||
|
|
loop lda $d40b ;Load VCOUNT
|
||
|
|
anc #12 ;Illegal opcode
|
||
|
|
sta $d40a
|
||
|
|
sta $d01a ;Change background color
|
||
|
|
jmp loop1
|
||
|
|
|
||
|
|
* = $2e0 ;Set run address
|
||
|
|
.word start
|
||
|
|
|