4cade/src/prelaunch/ribbit.a

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2022-05-17 05:08:38 +00:00
;license:MIT
;(c) 2022 by qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/RIBBIT",plain
*=$106
!source "src/macros.a"
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+ENABLE_ACCEL
lda #$60
sta $4023
jsr $4000 ; decompress
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda #$a5
sta $643C ; patch - don't decrease lives
sta $6589 ; patch - don't decrease time
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $6000
!if * > $1C0 {
!error "code is too large, ends at ", *
}