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https://github.com/a2-4am/4cade.git
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Reset vector fixes (#95)
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parent
a2de3b2190
commit
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27
src/prelaunch/ballblazer.a
Executable file
27
src/prelaunch/ballblazer.a
Executable file
@ -0,0 +1,27 @@
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;license:MIT
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;(c) 2019 by Frank M.
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!cpu 6502
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!to "build/PRELAUNCH/BALLBLAZER",plain
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*=$106
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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lda #$60
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sta $5FEB
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jsr $5FCC ; decompress1
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lda #$60
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sta $BE20
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+DISABLE_ACCEL
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jsr $BE00 ; decompress2/title
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lda #1
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sta $415 ; gets patched to LC reset vector
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jmp $400
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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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38
src/prelaunch/fs2.a
Executable file
38
src/prelaunch/fs2.a
Executable file
@ -0,0 +1,38 @@
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;license:MIT
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;(c) 2019 by Frank M.
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!cpu 6502
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!to "build/PRELAUNCH/FS2",plain
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*=$106
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!source "src/prelaunch/common.a"
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;+ENABLE_ACCEL ; can't
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lda #$2C
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sta $1C0
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lda #$82
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sta $1C1
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lda #$C0
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sta $1C2
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lda #$4C ; add reboot hook @ $1C0
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sta $1C3
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lda #$A6
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sta $1C4
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lda #$FA
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sta $1C5
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lda #$C0
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sta $81D3 ; cloned to $3F2
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sta $7C6E ; cloned to $FFFC
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lda #$01
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sta $81D4 ; cloned to $3F3
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sta $7C71 ; cloned to $FFFD
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lda #$A4
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sta $81CB ; cloned to $3F4
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jmp $24F8
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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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@ -12,9 +12,15 @@
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sta $81D
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jsr $800 ; decompress
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lda #1
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+NEW_RESET_VECTOR $280
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lda #$80
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sta $2001
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sta $2016
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sta $812E
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lda #$02
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sta $2006
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sta $201B ; reset vector patch
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sta $8133 ; (yes, that's 3 times)
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+DISABLE_ACCEL
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jmp $8FD
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@ -1,22 +0,0 @@
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;license:MIT
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;(c) 2019 by Frank M.
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!cpu 6502
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!to "build/PRELAUNCH/RASTER.BLASTER",plain
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*=$106
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!source "src/prelaunch/common.a"
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;+ENABLE_ACCEL ; can't
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lda #$60
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sta $825
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jsr $800 ; decompress/set reset vector
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+RESET_VECTOR $100
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jsr $8200 ; title
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jmp $FEBC ; demo
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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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16
src/prelaunch/xevious.a
Normal file → Executable file
16
src/prelaunch/xevious.a
Normal file → Executable file
@ -8,6 +8,14 @@
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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+READ_RAM2_WRITE_RAM2
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lda #<reset
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sta $FFFC
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sta $3F2 ; $3F3/3F4 already set to page 1
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lda #>reset
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sta $FFFD ; reset vector patch
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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sta patch2+1
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@ -27,7 +35,7 @@ patch1
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sta $ACE8
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lda #>patch2
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sta $ACE9
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jmp $AC48 ; decompress 2
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jmp $AC48 ; decompress 2/first title
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patch2
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lda #0 ; SMC
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beq +
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@ -38,11 +46,7 @@ patch2
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sta $750D ; patch - don't increase lives
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sta $894F ; patch - don't increase lives
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+
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lda #<reset
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sta $FFFC
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lda #>reset
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sta $FFFD
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jmp $0600
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jmp $0600 ; play demo/start game
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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