4cade/src/prelaunch/willy.byte.a
2021-07-29 11:48:50 -07:00

36 lines
674 B
Plaintext

;license:MIT
;(c) 2021 by qkumba
!cpu 6502
!to "build/PRELAUNCH/WILLY.BYTE",plain
*=$106
!source "src/prelaunch/common.a"
+ENABLE_ACCEL
lda #$60
sta $426B
jsr $4000 ; decompress
lda #<callback
sta $BD7C
lda #>callback
sta $BD7D
lda #$4C
sta $B6D8
ldx #0
stx $B6D9
inx
stx $B6DA ; reset vector
+DISABLE_ACCEL
jmp $6000
callback
+ENABLE_ACCEL
jsr $BD80 ; decompress
+DISABLE_ACCEL
rts
!if * > $1C0 {
!error "code is too large, ends at ", *
}