mirror of https://github.com/a2-4am/4cade.git
39 lines
883 B
Plaintext
39 lines
883 B
Plaintext
;license:MIT
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;(c) 2020 by qkumba/Frank M.
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/SARACEN",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 $21F8
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jsr $2000 ; load "DOS"
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lda #<callback
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sta $1795
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lda #>callback
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sta $1796
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jmp $81F
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callback
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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beq +
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dec $878 ; patch - don't increase lives
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dec $8A5 ; patch - don't decrease lives
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dec $8DE ; patch - don't decrease lives
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+
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+RESET_VECTOR_HALF $100
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lda $7fe ; Saracen code
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pha
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+DISABLE_ACCEL
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pla
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sta $7fe ; overwritten by GS acceleration
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jmp $400
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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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