4cade/src/prelaunch/arctic.fox.a

;license:MIT
;(c) 2020, 2022 by qkumba/Frank M.

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

    !source "src/macros.a"

         +ENABLE_ACCEL
         lda   #>(callback1-1)
         sta   $4280
         lda   #<(callback1-1)
         sta   $4283
         jmp   $3FFD      ; decompress

callback2
         lda   $BD09
         cmp   #'E'
         bne   +
         lda   #$AD
         sta   $8006      ; patch - don't decrease oxygen
         sta   $97D1      ; patch - don't increase damage
+        jmp   $7F00

callback1
         +LC_REBOOT
         inc   $3F4       ; force reboot
         +READ_RAM2_NO_WRITE
         lda   MachineStatus
         and   #CHEATS_ENABLED
         beq   +
         lda   #<callback2
         sta   $11C5
         lda   #>callback2
         sta   $11C6
+
         jsr   DisableAccelerator
         +READ_RAM1_WRITE_RAM1
         sta   $C05F      ; fix //c and //c+ HGR color
         jmp   $1170

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