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woz64/hardware/vic.asm

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NASM
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2020-01-20 07:32:37 +00:00
#importonce
.filenamespace Vic
// https://www.c64-wiki.com/wiki/VIC
// https://www.c64-wiki.com/wiki/Page_208-211
// ========================================================
// ////// CONSTANTS ///////////////////////////////////////
// ========================================================
.label VICREG = $D000
.label CR2 = $D016 // Control register 2
* = * "VIC Functions"
init: {
ldx #47
px4:
lda tvic-1, x
sta VICREG-1, x
dex
bne px4
rts
}
* = * "VIC Init Data"
tvic:
.byte $00, $00, $00, $00, $00, $00, $00, $00
.byte $00, $00, $00, $00, $00, $00, $00, $00
.byte $00, $9B, $37, $00, $00, $00, $08, $00
.byte $14, $0F, $00, $00 ,$00, $00, $00, $00
.byte $0E, $06, $01, $02, $03, $04, $00, $01
.byte $02, $03, $04, $05, $06, $07, $4C