4cade/src/demo/dung.beetles.a

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

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

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

         +ENABLE_ACCEL_LC
         +LOAD_XSINGLE title

         lda   #$60
         sta   $603A
         jsr   $6000      ; decompress

         ldx   #1
         stx   $083E      ; reset vector patch

         lda   #$60
         sta   $847
         jsr   $800       ; memory move

         ldx   #6-1
-        lda   patch, x
         sta   $9B93, x
         dex
         bpl   -          ; disable button support on title screen

         ldx   #3-1
-        lda   patch2,x
         sta   $9B7D,x
         sta   $97D5,x    ; set exits
         dex
         bpl   -

         lda   #$D0
         sta   $1C17
         sta   $12CE
         sta   $9B4D
         sta   $9B56      ; disable sound

         +DISABLE_ACCEL

         jmp   $9600

patch    !byte $A9,$01,$EA,$EA,$EA,$EA
patch2   !byte $4C,$00,$01

title    !byte x_e-x_b
x_b      !text "DUNG.BEETLES"
x_e

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