Apple-2-SW/dos33fsprogs
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second: urgh bug in music player, previous fix was broken

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didn't handle the corner case of two carries, and the credits music
was crashing after pattern 13

this is an ugly fix but hopefully correct
This commit is contained in:
Vince Weaver 2023-11-04 00:24:36 -04:00
parent 7a11877cce
commit 3a770f9913
1 changed files with 4 additions and 0 deletions

4
demos/second/pt3_lib_core.s

@ -1561,11 +1561,15 @@ not_done:
clc
sta PATTERN_L
adc PT3_LOC+PT3_PATTERN_LOC_L
php ; save carry as we might generate two
clc
adc PATTERN_L
sta PATTERN_L
lda PT3_LOC+PT3_PATTERN_LOC_H ; 4
adc #>PT3_LOC ; assume page boundary ; 2
plp ; restore carry
adc #0
sta PATTERN_H ; 3
; clc