4cade/src/prelaunch/gremlins.a

;license:MIT
;(c) 2019 by 4am

!cpu 6502
!to "build/PRELAUNCH.INDEXED/GREMLINS",plain
*=$106

         !source "src/prelaunch/common.a"

         +ENABLE_ACCEL
         lda   #$60
         sta   $0866
         jsr   $0800      ; decompress
         +GET_MACHINE_STATUS
         and   #CHEATS_ENABLED
         beq   +
                          ; lives in $76 and $084A,X (0/1 for player 1/2)
         lda   #$A5
         sta   $54B2      ; patch - don't decrease lives
         sta   $5165      ; patch - don't increase lives
         lda   #$BD
         sta   $54B6      ; patch - don't decrease lives
         sta   $5162      ; patch - don't increase lives
+
         ldx   #0
         stx   $67AA
         dex
         stx   $67A0
         +DISABLE_ACCEL
         jmp   $4000

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