mirror of https://github.com/a2-4am/4cade.git
58 lines
1.1 KiB
Plaintext
58 lines
1.1 KiB
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/SPACE.SPIKES",plain
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*=$106
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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lda #$60
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sta $88D
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sta $905
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sta $96E
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jsr $800 ; decompress
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- lda x_b, y
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sta $250, y
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iny
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bne -
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lda #<callback1
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sta $9501
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lda #<callback2
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sta $95B1
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lda #>callback1
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sta $9502
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sta $95B2
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jmp $9500
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x_b !pseudopc $250 {
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callback1
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+READ_RAM2_NO_WRITE
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jsr EnableAccelerator
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jsr $9503
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+DISABLE_ACCEL
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jsr $BC69
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sta $C010
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callback2
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+READ_RAM2_NO_WRITE
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jsr EnableAccelerator
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jsr $BC78
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+READ_RAM2_NO_WRITE
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #$ad
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sta $6B5C ; patch - don't decrease lives
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $A00
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}
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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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