mirror of https://github.com/a2-4am/4cade.git
54 lines
997 B
Plaintext
54 lines
997 B
Plaintext
;license:MIT
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;(c) 2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/RB",plain
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*=$106
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!source "src/prelaunch/common.a"
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+READ_RAM2_NO_WRITE
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lda WaitForVBL
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cmp #$60
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beq novbl1
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jsr EnableAccelerator
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lda #0
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sta $5FFC ; enable our VBL
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novbl1
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lda #$4C
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sta $612F
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lda #<callback1
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sta $6130
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lda #>callback1
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sta $6131
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jmp $3FF8 ; decompress
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callback1
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lda WaitForVBL
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cmp #$60
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beq novbl2
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lda #$4C
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sta $14F9
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lda #<callback2
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sta $14FA
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lda #>callback2
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sta $14FB
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novbl2
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lda $C055
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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rts
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callback2
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+READ_RAM2_NO_WRITE
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jsr WaitForVBL
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+READ_ROM_NO_WRITE
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rts
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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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