mirror of https://github.com/a2-4am/4cade.git
54 lines
1.1 KiB
Plaintext
54 lines
1.1 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/TITAN.CRONUS",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 $1053+1
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lda #>hook
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sta $1053+2
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jmp $1000 ; decompress
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hook +NEW_RESET_VECTOR $280
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lda #$8C ; CALL
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sta $C84
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lda #$36 ; "640" / $280
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sta $C84+1
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lda #$34
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sta $C84+2 ; return to TR instead of BASIC
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lda #$30
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sta $C84+3 ; (replaces TEXT:HOME:END)
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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 #<callback
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sta $1073
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lda #>callback
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sta $1074
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $D566
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callback
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pla
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pla
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jsr $1080
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jsr $1075
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lda #$AD
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sta $808C ; don't increase lives
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sta $8595 ; don't decrease lives
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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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