mirror of https://github.com/a2-4am/4cade.git
add some cheats
This commit is contained in:
Peter Ferrie
parent
1682de6472
commit
fe753499a8
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@ -229,7 +229,7 @@
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0001,LANCASTER=Lancaster
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1000,LASER.BOUNCE=Laser Bounce
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0001,LAZER.SILK=Lazer Silk
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0000,LEMMINGS=Lemmings
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0001,LEMMINGS=Lemmings
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0001,LL=Lethal Labyrinth
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0000,LP=Little Computer People
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0001,LC=Lock 'n' Chase
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@ -298,7 +298,7 @@
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0005,PICNIC.PARANOIA=Picnic Paranoia
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0001,PM=Pie-Man
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0001,PIG.PEN=Pig Pen
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0110,PIPE.DREAM=Pipe Dream
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0115,PIPE.DREAM=Pipe Dream
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1000,PITFALL.II=Pitfall II
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0000,PITSTOP.II=Pitstop II
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1001,PLANETOIDS=Planetoids
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@ -344,7 +344,7 @@
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0001,SHORT.CIRCUIT=Short Circuit
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1001,SI=Shuttle Intercept
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0006,SC=Situation Critical
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1000,SKYFOX=Skyfox
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1006,SKYFOX=Skyfox
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0001,SNACK.ATTACK=Snack Attack
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0001,SNAKE.BYTE=Snake Byte
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0001,SNEAKERS=Sneakers
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@ -378,10 +378,10 @@
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1001,STARBALL=Starball
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1001,STARBLASTER=Starblaster
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1003,STARGATE=Stargate
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1000,STARGLIDER=Starglider
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1006,STARGLIDER=Starglider
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1000,STARMINES=Starmines
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0000,STATION.5=Station 5
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0000,STELLAR.7=Stellar 7
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0006,STELLAR.7=Stellar 7
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0004,SUCCESSION=Succession
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0004,SU=Suicide!
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0001,SUPER.BUNNY=Super Bunny
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2021 by qkumba
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;(c) 2021-2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/LEMMINGS",plain
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@ -12,7 +12,15 @@
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sta $41B0
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jsr $4000 ; decompress
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inc $C9 ; RNG requires non-zero
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+DISABLE_ACCEL
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+READ_RAM2_NO_WRITE
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #$ad
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sta $BA5E ; patch - don't decrease lives
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $8C8
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!if * > $1C0 {
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2020 by qkumba
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;(c) 2020, 2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/PIPE.DREAM",plain
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@ -14,6 +14,9 @@ my_vbl
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sta @copy_vbl+1
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lda WaitForVBL+2
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sta @copy_vbl+2
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lda MachineStatus
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and #CHEATS_ENABLED
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php
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ldy #0
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@copy_vbl
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@ -31,8 +34,20 @@ my_vbl
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sta $9D53
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lda #>my_vbl
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sta $9D54
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plp
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beq +
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lda #<callback
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sta $8BB
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lda #>callback
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sta $8BC
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+
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jmp $881
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callback
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lda #$A5
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sta $A453 ; patch - don't decrease time
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jmp $B679
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2019-2021 by qkumba/Frank M.
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;(c) 2019-2022 by qkumba/Frank M.
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/SKYFOX",plain
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@ -7,42 +7,70 @@
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!source "src/prelaunch/common.a"
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jmp +
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callback2
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jsr $BC03
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lda #$85
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ldx #$A5
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cmp $7FB5
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bne plane
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stx $7FB5 ; patch - don't increase damage
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stx $9327 ; patch - don't decrease fuel
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plane
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cmp $9BC7
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bne nopatch
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stx $156A ; patch - don't decrease fuel
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stx $9281 ; patch - don't decrease fuel
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stx $9BC7 ; patch - don't increase damage
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callback1
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sec
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sbc #8
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cmp #2
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nopatch
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lda #0
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rts
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+
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+ENABLE_ACCEL
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inc $80 ; requires a non-zero value for the RNG
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lda #$60
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sta $7E3A
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jsr $4635
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lda #$82 ; READ_ROM_NO_WRITE
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sta $101
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lda #$A6
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sta $104
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lda #$FA
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sta $105 ; update TR hook to reboot
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lda #0
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ldx #$82 ; READ_ROM_NO_WRITE
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stx $101
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ldx #$A6
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stx $104
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ldx #$FA
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stx $105 ; update TR hook to reboot
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sta $5FFC
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lda #1
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sta $5FFD ; moved to LC $FFFC/D
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sty $5FFD ; moved to LC $FFFC/D
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lda #$4C
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sta $6872
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lda #<callback
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lda #<callback1
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sta $6873
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lda #>callback
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sta $6874
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sty $6874
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lda #$B0
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sta $685B
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lda #$90
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sta $6862
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+DISABLE_ACCEL
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+READ_RAM2_NO_WRITE
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #<callback2
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sta $8882
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sty $8883
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $67BD
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callback
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sec
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sbc #8
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cmp #2
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rts
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2020 by qkumba
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;(c) 2020, 2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/STARGLIDER",plain
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@ -7,7 +7,12 @@
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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+READ_RAM2_NO_WRITE
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jsr EnableAccelerator
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lda MachineStatus
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and #CHEATS_ENABLED
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php
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+READ_ROM_NO_WRITE
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lda #$60
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sta $81FC
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jsr $800 ; decompress
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@ -25,6 +30,19 @@
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lda #$FA
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sta $105 ; update reset hook to reboot
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plp
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beq +
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lda #$a5
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sta $76B3 ; patch - don't decrease fuel
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sta $856B ; patch - don't increase damage
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sta $8E13 ; patch - don't increase weapons
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sta $9528 ; patch - don't increase damage
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sta $9BC0 ; patch - don't increase damage
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sta $9D34 ; patch - don't increase damage
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sta $9D70 ; patch - don't increase damage
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sta $9E37 ; patch - don't increase damage
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+
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jmp $BA00
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!if * > $1C0 {
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2019 by qkumba/Frank M.
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;(c) 2019, 2022 by qkumba/Frank M.
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/STELLAR.7",plain
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@ -20,9 +20,25 @@
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lda #$A4
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sta $AE28 ; reset vector patch
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+DISABLE_ACCEL
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+READ_RAM2_NO_WRITE
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #<callback
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sta $AE71
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lda #>callback
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sta $AE72
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $AE27
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callback
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jsr $AF60
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lda #$AD
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sta $80D8 ; patch - don't decrease fuel
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sta $8095 ; patch - don't increase damage
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jmp $A440
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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