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Brooke Vibber 2024-12-31 07:33:20 -08:00
parent 4a1e35699a
commit 7184b8e03f
1 changed files with 23 additions and 8 deletions
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mandel.s
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@ -292,16 +292,16 @@ viewport_zoom:
.byte 6
viewport_ox:
.word $0000
.word $f110
.word $f110
.word $e400
.dword $00000000
.dword $ff110000
.dword $ff110000
.dword $fe400000
viewport_oy:
.word $0000
.word $fb60
.word $fbe0
.word $0000
.dword $00000000
.dword $ffb60000
.dword $ffbe0000
.dword $00000000
; 2 + 9 * byte cycles
.macro add bytes, dest, arg1, arg2
@ -1459,17 +1459,32 @@ zero_byte_loop:
txa
asl a
asl a
tax
lda viewport_ox,x
sta ox
lda viewport_oy,x
sta oy
inx
lda viewport_ox,x
sta ox + 1
lda viewport_oy,x
sta oy + 1
inx
lda viewport_ox,x
sta ox + 2
lda viewport_oy,x
sta oy + 2
inx
lda viewport_ox,x
sta ox + 3
lda viewport_oy,x
sta oy + 3
rts
.endproc