4cade/src/prelaunch/thunder.bombs.a

;license:MIT
;(c) 2019 by Frank M.

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

    !source "src/prelaunch/common.a"

         lda   #$60
         sta   $887F
         lda   #<fakewait
         sta   $8823+1
         sta   $8823+2
         lda   #>fakewait
         sta   $8823+2
         sta   $882B+2    ; fix timing of title screen on //gs
         jsr   $87F9      ; load, show title

         +ENABLE_ACCEL
         lda   #$60
         sta   $7818
         jsr   $7800      ; unpack/setup

         lda   #0
         sta   $3F2       ; reset vector

         +READ_RAM2_NO_WRITE
         lda   MockingboardStuff
         +READ_ROM_NO_WRITE
         cmp   #1
         bcc   ++
         tax
         ora   #$C0
         sta   $341
         txa
         asl
         and   #$80
         ora   #1         ; sound i
         bpl   +
         eor   #$85       ; sound ii
+
         bcc   +
         lda   #6         ; +speech
+
         sta   $340
         jsr   $7CB4
++
         +DISABLE_ACCEL

         lda   $323
         jmp   $781B

fakewait sec
wait1    pha
wait2    sbc   #$01
         bne   wait2
         pla
         sbc   #$01
         bne   wait1
         rts

!if * > $1C0 {
  !error "code is too large, ends at ", *
}