snes-asm/my_custom.asm

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NASM
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2016-12-06 02:11:21 -08:00
.MACRO Spin_Loop ARGS XCOUNT
ldx #XCOUNT
lvl3\@:
lda #$ff
lvl2\@:
xba
lda #$ff
lvl1\@:
dea
cmp #$00
bne lvl1\@
xba
dea
cmp #$00
bne lvl2\@
dex
txa
cmp #$00
bne lvl3\@
.ENDM
.MACRO Set_A_8_XY_16
; 16-bit xy, 8-bit a
rep #%00010000
sep #%00100000
.ENDM
2016-12-06 02:11:21 -08:00
.MACRO Reset_Palette_Offset
stz $2121
.ENDM
.MACRO Load_Palette_Color ARGS BYTE1 BYTE2
lda #BYTE1
sta $2122
;lda #BYTE2
;sta $2122
.ENDM
.MACRO Set_Screen_Brightness
lda #\1
sta $2100 ; $2100 is the screen brightness register
.ENDM