4cade/src/prelaunch/bug.attack.a

33 lines
735 B
Plaintext

;license:MIT
;(c) 2020 by qkumba
!cpu 6502
!to "build/PRELAUNCH/BUG.ATTACK",plain
*=$106
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
lda #>(callback-1)
sta $641A
lda #<(callback-1)
sta $641D
jmp $6400 ; decompress
callback
+GET_MACHINE_STATUS
and #CHEATS_ENABLED
beq +
lda #$a5
sta $F8D ; patch - don't decrease lives
sta $41B9 ; patch - don't increase lives
sta $42F1 ; patch - don't increase lives
sta $4434 ; patch - don't increase lives
+
+DISABLE_ACCEL
jmp $4D36
!if * > $1C0 {
!error "code is too large, ends at ", *
}