4cade/src/prelaunch/black.magic.a

;license:MIT
;(c) 2019 by qkumba/Tom Greene/Frank M.

!cpu 6502
!to "build/PRELAUNCH.INDEXED/BLACK.MAGIC",plain
*=$106

    !source "src/prelaunch/common.a"

                          ; acceleration has problems with Fastchip
                          ; let's remove it

         lda   #<reset    ; fix reset during title
         sta   $9AE
         sta   $80FC

         lda   #$60
         sta   $9C2
         jsr   $800       ; decompress

         lda   #$60
         sta   $1B2D
         sta   $D6E6
         jsr   $1B00
         lda   #<callback1
         sta   $D7E9
         lda   #>callback1
         sta   $D7EA
         jsr   $D000
         lda   #<callback2
         sta   $8D5
         lda   #>callback2
         sta   $8D6
         jmp   $800

callback1
         lda   #<reset
         sta   $5029      ; fix tamper check
         sta   $80FC      ; re-cloned to $FFFC
         jmp   $5000

callback2
         lda   #$4C
         sta   $D6EB
         jsr   $D003
         ldx   #5
-        lda   reset, x
         sta   $4182, x
         dex
         bpl   -
         lda   #$20
         sta   $D6EB
         lda   #$63       ; back to original vector
         sta   $3F2
         sta   $FFFC
         +READ_RAM2_WRITE_RAM2      ; fix on //c+
         jmp   $D6EE

reset
         +READ_ROM_NO_WRITE
         jmp   $FAA6
         
!if * > $1C0 {
  !error "code is too large, ends at ", *
}