mirror of https://github.com/a2-4am/4cade.git
51 lines
1.0 KiB
Plaintext
51 lines
1.0 KiB
Plaintext
;license:MIT
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;(c) 2021-2022 by Frank M., qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/ARTESIANS",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 #<hook
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sta $87B+1
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lda #>hook
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sta $87B+2
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jmp $800 ; decompress
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callback1
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lda #<callback2
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sta $8E43
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lda #>callback2
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sta $8E44
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jmp $8E00
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callback2
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lda #0
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sta $A00 ; patch - don't decrease energy
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lda #$B0
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sta $1815 ; patch - don't decrease energy
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jmp $8E8C
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hook +RESET_VECTOR $100
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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 #<callback1
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sta $B31F
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lda #>callback1
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sta $B320
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+
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lda #0
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sta $B7F0
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bit $C057 ; enable hires
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $B31B
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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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