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fix Black Magic reset on ][+ (#301)

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frankmilliron 2020-07-18 13:58:06 -07:00 committed by GitHub
parent b5a44e068a
commit 340068441b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 23 additions and 3 deletions
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26
src/prelaunch/black.magic.a
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@ -9,6 +9,11 @@
; acceleration has problems with Fastchip ; acceleration has problems with Fastchip
; let's remove it ; let's remove it
lda #<reset ; fix reset during title
sta $9AE
sta $80FC
lda #$60 lda #$60
sta $9C2 sta $9C2
jsr $800 ; decompress jsr $800 ; decompress
@ -17,14 +22,26 @@
sta $1B2D sta $1B2D
sta $D6E6 sta $D6E6
jsr $1B00 jsr $1B00
lda #<callback1
sta $D7E9
lda #>callback1
sta $D7EA
jsr $D000 jsr $D000
lda #<callback
lda #<callback2
sta $8D5 sta $8D5
lda #>callback lda #>callback2
sta $8D6 sta $8D6
jmp $800 jmp $800
callback callback1
lda #<reset
sta $5029 ; fix tamper check
sta $80FC ; re-cloned to $FFFC
jmp $5000
callback2
lda #$4C lda #$4C
sta $D6EB sta $D6EB
jsr $D003 jsr $D003
@ -35,6 +52,9 @@ callback
bpl - bpl -
lda #$20 lda #$20
sta $D6EB sta $D6EB
lda #$63 ; back to original vector
sta $3F2
sta $FFFC
jmp $D6EE jmp $D6EE
reset reset