;license:MIT
;(c) 2021-2022 by Frank M., qkumba

!cpu 6502
!to "build/DEMO/NI#060300",plain
*=$300

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

         +READ_RAM2_WRITE_RAM2
         jsr   EnableAccelerator
         +LOAD_FILE_KEEP_DIR nightmare, nightmare_dir_e-nightmare_dir_b
         lda   #$60
         sta   $404B
         jsr   $4000      ; decompress

         ldx   #3-1
-        lda   patch,x
         sta   $8C24,x
         sta   $8C35,x    ; set exits
         lda   patch2,x
         sta   $1669,x    ; decrement custom counter after demo cycle and eventually exit
         dex
         bpl   -

         +DISABLE_ACCEL

         jmp   $1206

count    !byte $03
         dec   count
         beq   patch
         jmp   $128E

patch    !byte $4C,$00,$01
patch2   !byte $4C,<(count+1),>(count+1)

nightmare
         !byte nightmare_e-nightmare_b
nightmare_b
nightmare_dir_b
         !text "X/NI"
nightmare_dir_e
         !text "/NI"
nightmare_e

!if * > $3F0 {
  !error "code is too large, ends at ", *
}