add some cheats

This commit is contained in:
Peter Ferrie 2022-05-27 07:41:34 -07:00
parent f9ca079e5c
commit 1682de6472
6 changed files with 84 additions and 11 deletions

View File

@ -91,7 +91,7 @@
0003,BU=BurgerTime
0001,BUZZARD.BAIT=Buzzard Bait
0000,CV=C'est La Vie
0000,CALI.RAISINS=California Raisins
0004,CALI.RAISINS=California Raisins
0001,CB=Cannonball Blitz
0001,CANYON.CLIMBER=Canyon Climber
0005,CG=Captain Goodnight
@ -137,7 +137,7 @@
1001,DEFENDER=Defender
1001,DJ=Defender (Joe Holt)
0001,DEMONIC.DECKS=Demonic Decks
1000,DEPTH.CHARGE=Depth Charge
1001,DEPTH.CHARGE=Depth Charge
0001,DIAMOND.MINE=Diamond Mine
0001,DIG.DUG=Dig Dug
1001,DINO.EGGS=Dino Eggs
@ -153,12 +153,12 @@
0001,EARLY.BIRD=Early Bird
0001,EI=Eggs-It
0000,EPOCH=Epoch
0000,ES=Escape!
0005,ES=Escape!
0001,EVOLUTION=Evolution
0001,EXTERMINATOR=Exterminator
0001,FALCONS=Falcons
0006,FAT.CITY=Fat City
0000,FEDERATION=Federation
0001,FEDERATION=Federation
0001,FIREBIRD=Firebird
0000,FIREBUG=Firebug
0110,FLAPPLE.BIRD=Flapple Bird
@ -203,7 +203,7 @@
0001,HYPER.HEAD.ON=Hyper Head On
0000,IO=I.O. Silver
0101,IKARI.WARRIORS=Ikari Warriors
1000,I1=Impossible Mission
1005,I1=Impossible Mission
0117,I2=Impossible Mission II
0111,INDIANA.JONES=Indiana Jones
1000,INFILTRATOR=Infiltrator

View File

@ -13,7 +13,17 @@
sta $5EC0
jsr $36C0 ; decompress
+DISABLE_ACCEL
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda #$ad
sta $69EE ; patch - don't decrease lives
sta $69F1 ; patch - don't decrease lives
sta $7474 ; patch - don't decrease time
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $D566

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@ -0,0 +1,27 @@
;license:MIT
;(c) 2022 by qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/DEPTH.CHARGE",plain
*=$106
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
lda #$60
sta $1A6A
jsr $1A00 ; decompress
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
dec $BFB ; patch - don't decrease lives
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $D566
!if * > $1C0 {
!error "code is too large, ends at ", *
}

View File

@ -1,5 +1,5 @@
;license:MIT
;(c) 2021 by Frank M.
;(c) 2021-2022 by Frank M., qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/ES",plain
@ -7,9 +7,29 @@
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
+NEW_RESET_VECTOR $BFF0
jmp $523E
lda #<callback
sta $6037
lda #>callback
sta $6038
jmp $523E ; decompress
callback
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda $1E5B
cmp #$31
bne +
dec $1E5B ; patch - don't decrease time
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $D566
!if * > $1C0 {
!error "code is too large, ends at ", *

View File

@ -1,5 +1,5 @@
;license:MIT
;(c) 2021 by qkumba
;(c) 2021-2022 by qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/FEDERATION",plain
@ -11,7 +11,15 @@
lda #$60
sta $1C7C
jsr $1C00 ; decompress
+DISABLE_ACCEL
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda #$ad
sta $A63 ; patch - don't decrease lives
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $D566
!if * > $1C0 {

View File

@ -1,5 +1,5 @@
;license:MIT
;(c) 2019 by Frank M.
;(c) 2019, 2022 by Frank M., qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/I1",plain
@ -9,6 +9,7 @@
; reboot on reset during title
+READ_RAM2_WRITE_RAM2
jsr EnableAccelerator
+LC_REBOOT
+READ_ROM_NO_WRITE
@ -23,6 +24,13 @@
lda #$60
sta $4018
lda MachineStatus
and #CHEATS_ENABLED
beq +
dec $2634 ; patch - don't increase time
+
jsr DisableAccelerator
jsr $4000 ; sets reset vector/LC switched in
+LC_REBOOT ; change it back to reboot