Apple-2-SW/dos33fsprogs
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interlace: works now

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issue was unaligned gr_copy messing up the vapor lock
This commit is contained in:
Vince Weaver 2019-06-10 14:01:28 -04:00
parent a7d2bf4473
commit 42579e47ad
1 changed files with 16 additions and 11 deletions
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27
interlace_demo/interlace.s
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@ -147,9 +147,13 @@ in_range:
jsr gr_copy_to_current ; 6+ 9292
; now we have 322 left
; 5070 + 4550 = 9620
; 9292
; 12
; 6
; ====
; 310
; 322 - 12 = 310
; - 3 for jmp
; 307
@ -561,23 +565,23 @@ display_loop:
; 65 cycles
bit PAGE1 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $500 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $501 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $502 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $503 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $504 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $505 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $506 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $507 ; 4
lda #$06 ; 2
lda #$60 ; 2
sta $508 ; 4
bit krg ; 4
lda TEMP ; 3
@ -3197,6 +3201,7 @@ gr_offsets:
.include "../asm_routines/gr_unrle.s"
.include "../asm_routines/keypress.s"
.align $100
.include "gr_copy.s"
.include "vapor_lock.s"
.include "delay_a.s"