Apple-2-SW/dos33fsprogs
1
0
Fork 0
mirror of https://github.com/deater/dos33fsprogs.git synced 2024-12-27 17:29:49 +00:00
Code Issues Projects Releases Wiki Activity

fireworks: can toggle sound now

Browse Source
This commit is contained in:
Vince Weaver 2018-09-12 11:50:44 -04:00
parent d55c2b94c3
commit a14cca0746
1 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
fireworks/fireworks.s
View File

@ -287,13 +287,25 @@ check_keyboard:
lda KEYPRESS ; 4 lda KEYPRESS ; 4
bpl no_keypress ; 3 bpl no_keypress ; 3
jmp loop_forever jmp restart
no_keypress: no_keypress:
jmp display_loop ; 3 jmp display_loop ; 3
loop_forever:
jmp loop_forever ; Restart and toggle sound
restart:
; self mofifying code, flip from bit C030 to bit 0030
lda sound1+2
eor #$C0
sta sound1+2
lda sound2+2
eor #$C0
sta sound2+2
jmp setup_background
jump_table: jump_table: