mirror of
https://github.com/a2-4am/4cade.git
synced 2024-06-01 23:41:39 +00:00
54 lines
1.1 KiB
Plaintext
54 lines
1.1 KiB
Plaintext
;license:MIT
|
|
;(c) 2022 by qkumba
|
|
|
|
!cpu 6502
|
|
!to "build/PRELAUNCH.INDEXED/PP",plain
|
|
*=$106
|
|
|
|
!source "src/prelaunch/common.a"
|
|
|
|
+READ_RAM2_NO_WRITE
|
|
jsr EnableAccelerator
|
|
lda MachineStatus
|
|
and #CHEATS_ENABLED
|
|
sta cheat_smc1+1
|
|
sta cheat_smc2+1
|
|
+READ_ROM_NO_WRITE
|
|
lda #$60
|
|
sta $13B8
|
|
jsr $1200 ; decompress
|
|
lda #<callback1
|
|
sta $FE06
|
|
lda #>callback1
|
|
sta $FE07
|
|
jmp $EE00
|
|
|
|
callback1
|
|
lda #<callback2
|
|
sta $FD26
|
|
lda #>callback2
|
|
sta $FD27
|
|
cheat_smc1
|
|
lda #0
|
|
beq +
|
|
dec $2D0E ; patch - don't decrease time
|
|
+
|
|
+READ_RAM2_NO_WRITE
|
|
jsr DisableAccelerator
|
|
+READ_RAM1_WRITE_RAM1
|
|
jmp $4906
|
|
|
|
callback2
|
|
jsr $FF24
|
|
cheat_smc2
|
|
lda #0
|
|
beq +
|
|
lda #$a5
|
|
sta $2612 ; patch - don't decrease lives
|
|
+
|
|
rts
|
|
|
|
!if * > $1C0 {
|
|
!error "code is too large, ends at ", *
|
|
}
|