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waterfall: cleanup some code

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This commit is contained in:
Vince Weaver 2018-09-27 10:11:17 -04:00
parent d7aea3eefc
commit 7dfb809f76
1 changed files with 6 additions and 21 deletions
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27
waterfall/waterfall.s
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@ -148,15 +148,12 @@ waterfall_demo:
; Try X=9 Y=6 cycles=307
ldy #6 ; 2
loopA:
ldx #9 ; 2
loopB:
dex ; 2
bne loopB ; 2nt/3
dey ; 2
bne loopA ; 2nt/3
ldy #6 ; 2
wfloopA:ldx #9 ; 2
wfloopB:dex ; 2
bne wfloopB ; 2nt/3
dey ; 2
bne wfloopA ; 2nt/3
jmp display_loop
@ -208,18 +205,6 @@ display_loop:
pha ; 3
rts ; 6 ; 38
;========== old code
beq even
; 2
lda FRAME ; (nop) ; 3
jmp display_odd ; 3
even:
; 3
nop ; (nop) ; 2
jmp display_odd ; 3
display_loop_return:
vblank: