alttpr-gwaa-kiwi/alttpr-baserom
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initial checkin

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Karkat
2017-05-17 13:00:32 -04:00
parent 81b12bde40
commit f755a63925
78 changed files with 11500 additions and 21 deletions
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60
previewdatacopy.asm Normal file
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;================================================================================
; RTPreview SRAM Hook
;--------------------------------------------------------------------------------
WriteStatusPreview:
PHA
LDA $4300 : PHA ; preserve DMA parameters
LDA $4301 : PHA ; preserve DMA parameters
LDA $4302 : PHA ; preserve DMA parameters
LDA $4303 : PHA ; preserve DMA parameters
LDA $4304 : PHA ; preserve DMA parameters
LDA $4305 : PHA ; preserve DMA parameters
LDA $4306 : PHA ; preserve DMA parameters
;--------------------------------------------------------------------------------
LDA #$80 : STA $4300 ; set DMA transfer direction B -> A, bus A auto increment, single-byte mode
STA $4301 ; set bus B source to WRAM register
LDA #$40 : STA $2181 ; set WRAM register source address
LDA #$F3 : STA $2182
LDA #$7E : STA $2183
STZ $4302 ; set bus A destination address to SRAM
LDA #$1E : STA $4303
LDA #$70 : STA $4304
LDA #$80 : STA $4305 ; set transfer size to 0x180
LDA #$01 : STA $4306 ; STZ $4306
LDA #$01 : STA $420B ; begin DMA transfer
;--------------------------------------------------------------------------------
PLA : STA $4306 ; restore DMA parameters
PLA : STA $4305 ; restore DMA parameters
PLA : STA $4304 ; restore DMA parameters
PLA : STA $4303 ; restore DMA parameters
PLA : STA $4302 ; restore DMA parameters
PLA : STA $4301 ; restore DMA parameters
PLA : STA $4300 ; restore DMA parameters
PLA
RTL
;--------------------------------------------------------------------------------
;WriteStatusPreview:
; PHA : PHX : PHP
;
; REP #$20 ; set 16-bit accumulator
; CLC
; LDX.b #$00
; -
; LDA $7EF340, X : STA $701E00, X
; LDA $7EF340+2, X : STA $701E00+2, X
; LDA $7EF340+4, X : STA $701E00+4, X
; TXA : ADC.b #$06 : TAX
; CPX #$24 : !BLT -
;
; SEP #$20 ; set 8-bit accumulator
; LDA $7EF374 : STA $701E24
; LDA $7EF37A : STA $701E25
;
; PLP : PLX : PLA
;RTL
;--------------------------------------------------------------------------------