mirror of
https://github.com/a2-4am/4cade.git
synced 2024-09-30 00:56:24 +00:00
46 lines
894 B
Plaintext
46 lines
894 B
Plaintext
;license:MIT
|
|
;(c) 2019-2022 by 4am
|
|
;
|
|
|
|
!cpu 6502
|
|
!to "build/FX.INDEXED/STAGGER.UD",plain
|
|
*=$6000
|
|
|
|
row1 = $fe
|
|
row2 = $ff
|
|
|
|
!source "src/fx/macros.a"
|
|
|
|
lda #$00
|
|
sta row1
|
|
lda #$2E
|
|
sta row2
|
|
ldy #$27
|
|
@loop1 lda row1
|
|
jsr HGRHalfBlockCopy
|
|
dey
|
|
jsr HGRStaggerCopy
|
|
dey
|
|
bpl @loop1
|
|
iny ; Y -> 0
|
|
@loop2 lda row2
|
|
jsr HGRHalfBlockCopy
|
|
iny
|
|
jsr HGRStaggerCopy
|
|
iny
|
|
cpy #$28
|
|
bne @loop2
|
|
lda #$40
|
|
jsr WaitForKeyWithTimeout
|
|
bmi @exit
|
|
dey ; Y -> #$27
|
|
inc row1
|
|
inc row1
|
|
dec row2
|
|
dec row2
|
|
bpl @loop1
|
|
@exit rts
|
|
|
|
!source "src/wait.a"
|
|
+HGR_HALF_BLOCK_COPY_ROUTINES
|