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https://github.com/a2-4am/4cade.git
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46d05fbac9
Seems like starting a new game is wonky. after it shows the high score screen it messes up the graphics. not sure if that's my fix causing it or not, but both reset work, and every machine works currently.
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/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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