mirror of https://github.com/a2-4am/4cade.git
66 lines
1.4 KiB
Plaintext
66 lines
1.4 KiB
Plaintext
;license:MIT
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;(c) 2019 by qkumba/Tom Greene/Frank M.
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/BLACK.MAGIC",plain
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*=$106
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!source "src/prelaunch/common.a"
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; acceleration has problems with Fastchip
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; let's remove it
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lda #<reset ; fix reset during title
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sta $9AE
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sta $80FC
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lda #$60
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sta $9C2
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jsr $800 ; decompress
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lda #$60
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sta $1B2D
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sta $D6E6
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jsr $1B00
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lda #<callback1
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sta $D7E9
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lda #>callback1
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sta $D7EA
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jsr $D000
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lda #<callback2
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sta $8D5
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lda #>callback2
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sta $8D6
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jmp $800
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callback1
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lda #<reset
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sta $5029 ; fix tamper check
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sta $80FC ; re-cloned to $FFFC
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jmp $5000
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callback2
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lda #$4C
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sta $D6EB
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jsr $D003
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ldx #5
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- lda reset, x
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sta $4182, x
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dex
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bpl -
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lda #$20
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sta $D6EB
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lda #$63 ; back to original vector
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sta $3F2
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sta $FFFC
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+READ_RAM2_WRITE_RAM2 ; fix on //c+
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jmp $D6EE
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reset
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+READ_ROM_NO_WRITE
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jmp $FAA6
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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