;license:MIT
;(c) 2021 by Frank M.

!cpu 6502
!to "res/DEMO/THUNDER.BOMBS",plain
*=$B000

         !source "src/constants.a"   ; no code in these
         !source "src/macros.a"

         +READ_RAM2_WRITE_RAM2
;+LOAD_FILE_KEEP_DIR
         ldx   #0         ; read to main memory
         stx   ldrhi
         stx   ldrlo
         +LDADDR title
         jsr   iLoadFileDirect
         +READ_ROM_NO_WRITE

         ldx   #16-1      ; we also need to copy the length byte
-        lda   newpath,x
         sta   $BFD0,x
         dex
         bpl   -

         lda   #$60
         sta   $887F
         lda   #$4C
         sta   $8819
         lda   #<callback
         sta   $8819+1
         lda   #>callback
         sta   $8819+2
         jsr   $87F9      ; load/title

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

         lda   #0
         sta   $3F2       ; reset vector

         lda   #$4C
         sta   $789B
         sta   $78CB
         sta   $7A8C
         sta   $7837
         lda   #0
         sta   $789B+1
         sta   $78CB+1
         sta   $7A8C+1
         sta   $7837+1
         lda   #1
         sta   $789B+2
         sta   $78CB+2
         sta   $7A8C+2
         sta   $7837+2    ; set exits

         lda   $323
         jmp   $781B

callback bit   $C000
         ldx   #$30
-        bit   $C055
         lda   #$0B
         jsr   $FCA8
         bit   $C054
         lda   #$0B
         jsr   $FCA8
         bit   $C000
         bmi   exit
         dey
         bne   -
         dex
         bne   -
         jmp   $8839
exit     jmp   $100

newpath
         !byte 15
         !text "X/THUNDER.BOMBS"

title    !byte x_e-x_b
x_b      !text "X/THUNDER.BOMBS/THUNDER.BOMBS"
x_e

!if * > $B100 {
  !error "code is too large, ends at ", *
}