4cade/src/prelaunch/battlezone.a

;license:MIT
;(c) 2019 by qkumba

!cpu 6502
!to "build/PRELAUNCH/BATTLEZONE",plain
*=$106

    !source "src/prelaunch/common.a"

         +ENABLE_ACCEL
         lda   #$60
         sta   $201e
         jsr   $2000      ; decompress
         +GET_MACHINE_STATUS
         and   #CHEATS_ENABLED
         beq   +
         lda   #$b9
         sta   $7364      ; patch - don't decrease lives
         sta   $719c      ; patch - don't increase lives
         sta   $71ba      ; patch - don't increase lives
+
         lda   #0
         sta   $0811
         lda   #1
         sta   $0816      ; reset vector patch

         +DISABLE_ACCEL
         jmp   $810

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