mirror of
https://github.com/a2-4am/4cade.git
synced 2024-06-05 20:29:32 +00:00
45 lines
878 B
Plaintext
45 lines
878 B
Plaintext
;license:MIT
|
|
;(c) 2020 by qkumba
|
|
|
|
!cpu 6502
|
|
!to "build/PRELAUNCH/G.I.JOE",plain
|
|
*=$106
|
|
|
|
!source "src/prelaunch/common.a"
|
|
|
|
+ENABLE_ACCEL
|
|
lda #$60
|
|
sta $99f
|
|
jsr $800 ; decompress
|
|
|
|
+READ_RAM1_WRITE_RAM1
|
|
lda MachineStatus
|
|
and #CHEATS_ENABLED
|
|
beq +
|
|
lda #<callback1
|
|
sta $D45C
|
|
lda #<callback2
|
|
sta $D5A2
|
|
lda #>callback1
|
|
sta $D45D
|
|
sta $D5A3
|
|
+
|
|
bit $C083
|
|
jsr DisableAccelerator
|
|
bit $C08B
|
|
jmp $D400
|
|
|
|
callback1
|
|
lda #$AD
|
|
sta $63FA ; patch - don't increase hits
|
|
jmp $6000
|
|
|
|
callback2
|
|
lda #$AD
|
|
sta $14B5 ; patch - don't decrease lives
|
|
jmp $1100
|
|
|
|
!if * > $1C0 {
|
|
!error "code is too large, ends at ", *
|
|
}
|