4cade/src/demo/hard.hat.mack.a

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

!cpu 6502
!to "res/DEMO/HARD.HAT.MACK",plain
*=$200

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

         +ENABLE_ACCEL
         +LOAD_XSINGLE title

         lda   #<patcher
         sta   $9431
         lda   #>patcher
         sta   $942E
         jsr   $4856      ; decompress

patcher  rts
         lda   #1
         sta   $2218      ; reset vector patch

         lda   #$60
         sta   $BF7
         sta   $72B9

         lda   #$4C
         sta   $0BD0
         sta   $0C82
         lda   #0
         sta   $0BD0+1
         sta   $0C82+1
         lda   #1
         sta   $0BD0+2
         sta   $0C82+2    ; exit on keypress

         lda   #$D0
         sta   $5E4E      ; disable sound

         lda   #$20
         sta   $7249
         lda   #6
         sta   $7249+1
         lda   #1
         sta   $7249+2    ; exit at end of demo cycle

         ldx   #13-1
-        lda   patch, x
         sta   $106, x
         dex
         bpl   -          ; new code for exit at end patch

         +DISABLE_ACCEL

         lda   #$07
         pha
         lda   #$FF
         pha
         rts

title    !byte x_e-x_b
x_b      !text "HARD.HAT.MACK"
x_e

patch    !byte $8D,$10,$72,$8D,$13,$72,$8D,$14,$72,$EE,$14,$72,$60

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