4cade/src/fx/fx.hgr.interlock.lr.a

46 lines
812 B
Plaintext

;license:MIT
;(c) 2018 by 4am
;
!cpu 6502
!to "build/FX.INDEXED/INTERLOCK.LR",plain
*=$6000
row = $FF
!source "src/fx/macros.a"
lda #$00
sta @h1
lda #$27
sta @h2
@outerloop
lda #$BF
sta row
@loop lda row
jsr HGRCalc
@h1=*+1
ldy #$00
lda ($3c),y
sta ($26),y
dec row
lda row
jsr HGRCalc
@h2=*+1
ldy #$27
lda ($3c),y
sta ($26),y
dec row
lda row
cmp #$FF
bne @loop
lda #$20
jsr WaitForKeyWithTimeout
bmi @exit
inc @h1
dec @h2
bpl @outerloop
@exit rts
!source "src/wait.a"
+HGR_CALC_ROUTINES