1
0
mirror of https://github.com/sehugg/8bitworkshop.git synced 2024-11-16 05:05:11 +00:00
8bitworkshop/presets/vicdual/asmtest.zmac

81 lines
967 B
Plaintext
Raw Normal View History

2018-08-28 14:10:59 +00:00

_palette = 0x0040
_cellram = 0xe000
_tileram = 0xe800
org $0000
_start::
;<stdin>:19:
LD SP,$E800 ; set up stack pointer
DI ; disable interrupts
;<stdin>:20:
jp _main
;<stdin>:23:
; ---------------------------------
; Function main
; ---------------------------------
_main::
;<stdin>:26:
ld a,0x01
out (_palette),a
;<stdin>:27:
ld hl,_tileram
ld (hl), 0xfe
ld e, l
ld d, h
inc de
ld bc, 0x07ff
ldir
;<stdin>:28:
ld hl,_cellram
ld (hl), 0x00
ld e, l
ld d, h
inc de
ld bc, 0x07ff
ldir
;<stdin>:29:
ld c,0x00
;<stdin>:30:
00112$:
ld a,c
rlca
rlca
rlca
and a,0xf8
ld e,a
ld d,0x00
00106$:
;<stdin>:31:
ld l,d
ld h,0x00
add hl, hl
add hl, hl
add hl, hl
add hl, hl
add hl, hl
ld a,low (_cellram)
add a, l
ld l,a
ld a,high (_cellram)
adc a, h
ld h,a
ld b,0x00
add hl, bc
ld (hl),e
;<stdin>:30:
inc d
ld a,d
sub a, 0x20
jr C,00106$
;<stdin>:29:
inc c
ld a,c
sub a, 0x20
jr C,00112$
;<stdin>:34:
00104$:
jr 00104$