4cade/src/prelaunch/fire.and.ice.a

34 lines
754 B
Plaintext

;license:MIT
;(c) 2022 by qkumba, Frank M.
!cpu 6502
!to "build/PRELAUNCH.INDEXED/FIRE.AND.ICE",plain
*=$106
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
lda #$60
sta $27BD
jsr $2760 ; decompress
sty $1C03
iny
sty $1C08
ldy #$A4
sty $1C0D ; reset vector
+READ_RAM2_NO_WRITE
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda #$a5
sta $17DF ; patch - don't decrease fuel
sta $18E6 ; patch - don't decrease lives
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $8E00
!if * > $1C0 {
!error "code is too large, ends at ", *
}