mirror of https://github.com/a2-4am/4cade.git
85 lines
1.8 KiB
Plaintext
85 lines
1.8 KiB
Plaintext
;license:MIT
|
|
;(c) 2021-2022 by qkumba
|
|
|
|
!cpu 6502
|
|
!to "build/PRELAUNCH/KAMUNGAS.MB",plain
|
|
*=$200
|
|
|
|
!source "src/constants.a" ; no code in these
|
|
!source "src/macros.a"
|
|
|
|
+ENABLE_ACCEL
|
|
lda #$60
|
|
sta $52DB
|
|
jsr $527C ; decompress 1
|
|
+DISABLE_ACCEL
|
|
jsr $8d4
|
|
+ENABLE_ACCEL
|
|
lda #$60
|
|
sta $BD40
|
|
jsr $BD20 ; decompress 2
|
|
+READ_RAM2_NO_WRITE
|
|
lda MachineStatus
|
|
and #CHEATS_ENABLED
|
|
beq +
|
|
; lives in $0213
|
|
lda #$AD
|
|
sta $69DC ; patch - don't decrease lives
|
|
sta $6C9A ; patch - don't increase lives
|
|
sta $6C9D ; patch - don't increase lives
|
|
+
|
|
lda MockingboardStuff
|
|
+READ_ROM_NO_WRITE
|
|
beq ++
|
|
tax
|
|
and #7
|
|
ora #$C0
|
|
sta mbslot+1
|
|
txa
|
|
ldy #$0e ; sound/speech
|
|
asl
|
|
bcs +
|
|
ldy #$0a ; sound ii
|
|
asl
|
|
bmi +
|
|
ldy #2 ; sound i
|
|
+ sty mbtype+1
|
|
lda #$4C
|
|
sta $BD00
|
|
lda #<callback
|
|
sta $BD01
|
|
lda #>callback
|
|
sta $BD02
|
|
++
|
|
lda #$4C
|
|
sta $7215
|
|
jsr $7200
|
|
+RESET_VECTOR $100
|
|
+DISABLE_ACCEL
|
|
jmp $7218
|
|
|
|
!if * < $2A0 {
|
|
*=$2A0
|
|
} else {
|
|
!error "code is misplaced from $2A0, begins at ", *
|
|
}
|
|
callback
|
|
cpy #$C4
|
|
bne +
|
|
ldx #$CA
|
|
jsr $BD07 ; read high scores
|
|
mbtype
|
|
lda #$D1 ; SMC
|
|
sta $305
|
|
mbslot
|
|
lda #$D1 ; SMC
|
|
sta $306
|
|
rts
|
|
+
|
|
ldx #$CB
|
|
jmp $BD07
|
|
|
|
!if * > $2FF {
|
|
!error "code is too large, ends at ", *
|
|
}
|