4cade/src/prelaunch/pig.pen.a

37 lines
810 B
Plaintext

;license:MIT
;(c) 2022 by qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/PIG.PEN",plain
*=$106
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
lda #$4C
sta $933D
jsr $6500 ; decompress
lda #$60
sta $936D
+DISABLE_ACCEL
jsr $9340
+READ_RAM2_NO_WRITE
jsr EnableAccelerator
jsr $9396 ; decompress more
lda MachineStatus
and #CHEATS_ENABLED
beq +
lda #$ad
sta $733A ; patch - don't decrease lives
lda #0
sta $7336 ; patch - don't update draw position
+
jsr DisableAccelerator
+READ_ROM_NO_WRITE
jmp $6000
!if * > $1C0 {
!error "code is too large, ends at ", *
}