mirror of https://github.com/a2-4am/4cade.git
151 lines
3.9 KiB
Plaintext
151 lines
3.9 KiB
Plaintext
;license:MIT
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;(c) 2018-2020 by 4am/qkumba
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;
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; reverse engineered from Sapphire's crack screen of 'Crystal Castles'
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;
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!cpu 6502
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!to "build/FX.INDEXED/CRYSTAL",plain
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*=$6000
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!source "src/fx/macros.a"
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ldx #0
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stx $51
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ldx #4
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stx $50
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ldx #$17
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stx $53
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+READ_ROM_NO_WRITE
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--- lda $53
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jsr $FBC1 ; BASCALC
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ldy #$27
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-- ldx $51
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lda @table1, x
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ldx $50
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!byte $2C
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- lsr
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lsr
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dex
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bne -
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and #3
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dec $50
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bne +
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ldx #4
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stx $50
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inc $51
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+ sta ($28), y
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dey
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bpl --
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dec $53
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bpl ---
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iny
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sty $54
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lda #<Coordinates
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sta $FE
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ldx #>Coordinates
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stx $FF
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--- ldx #0
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-- txa
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jsr $FBC1 ; BASCALC
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- lda ($28), y
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cmp $54
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bne +
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tya
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pha
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txa
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jsr @stainc
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pla
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jsr @stainc
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tay
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+ iny
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cpy #$28
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bne -
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lda #$FF
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jsr @stainc2
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inx
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cpx #$18
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bcc --
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inc $54
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lda $54
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cmp #4
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bne ---
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+READ_RAM1_WRITE_RAM1
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lda #$80
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sta Coordinates+$840
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lda #$01
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sta $FD
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@outerloop
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dec $FD
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lda #<Coordinates
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sta $FE
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lda #>Coordinates
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sta $FF
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ldy #$00
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@loop
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lda ($fe),y
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bpl @copy
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lda #$10
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jsr WaitForKeyWithTimeout
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bmi @exit
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bpl @next ; always branches
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@copy
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tax
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iny
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lda ($fe),y
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tay
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txa
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bit $FD
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bpl +
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jsr HGRBlockCopy
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beq @next ; always branches
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+ jsr HGRBlockToWhite
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@next
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inc $FE
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bne +
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inc $FF
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+ inc $FE
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bne +
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inc $FF
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+ ldy #$00
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lda ($FE),y
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cmp #$80
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bne @loop
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bit $FD
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bpl @outerloop
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@exit rts
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@stainc2 jsr @stainc
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@stainc ldy #0
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sta ($FE), y
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inc $FE
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bne +
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inc $FF
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+ rts
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@table1
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!byte $05, $AF, $05, $AF, $06, $90, $FA, $50, $FA, $50, $50, $5A, $F0, $5A, $F0, $0F
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!byte $A5, $0F, $A5, $05, $A5, $05, $AF, $05, $AF, $FA, $50, $FA, $50, $5A, $FA, $50
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!byte $5A, $F0, $5A, $A5, $0F, $A5, $05, $AF, $0F, $A5, $05, $AF, $05, $50, $FA, $50
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!byte $5A, $F0, $50, $FE, $54, $5E, $F4, $0B, $A1, $01, $AB, $01, $A1, $0B, $A1, $01
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!byte $AB, $FE, $54, $5E, $F4, $5E, $FE, $54, $FE, $54, $5E, $A1, $01, $AB, $01, $AB
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!byte $0B, $A1, $0B, $A1, $01, $54, $5E, $F4, $5E, $F4, $54, $FE, $54, $FE, $54, $01
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!byte $AB, $01, $AB, $01, $A1, $0B, $A1, $0B, $A1, $5E, $F0, $5A, $F0, $5A, $3A, $50
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!byte $FA, $50, $FA, $AF, $01, $AB, $01, $A8, $3E, $54, $FE, $54, $FE, $AB, $01, $AB
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!byte $01, $A8, $A1, $0B, $A1, $0B, $A1, $5E, $F4, $5E, $F4, $5E, $54, $FE, $54, $FE
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!byte $54, $01, $AB, $01, $AB, $01, $0B, $A1, $0B, $A1, $01, $54, $5E, $F4, $5E, $F4
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!byte $FE, $50, $FA, $50, $5A, $A5, $05, $AF, $05, $AF, $A5, $0F, $A5, $05, $AF, $FA
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!byte $50, $5A, $F0, $5A, $50, $FA, $50, $5A, $F0, $0F, $A5, $05, $AF, $05, $0F, $A5
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!byte $05, $AF, $05, $50, $FA, $50, $5A, $F0, $FA, $50, $5A, $F0, $5A, $A5, $0F, $A5
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!byte $05, $AF, $A5, $05, $AF, $05, $AF, $FA, $50, $FA, $50, $5A, $50, $5A, $F0, $5A
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!byte $F0, $0F, $A5, $0F, $A5, $05, $05, $AF, $05, $AF, $06, $90, $FA, $50, $FA, $50
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!source "src/wait.a"
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+HGR_WHITE_ROUTINES
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+HGR_BLOCK_COPY_ROUTINES
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!if * and 1 {
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!byte 0
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}
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Coordinates
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