4cade/src/prelaunch/willy.byte.a

37 lines
716 B
Plaintext

;license:MIT
;(c) 2021 by qkumba
!cpu 6502
!to "build/PRELAUNCH.INDEXED/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
lda #0 ; set Z
rts
!if * > $1C0 {
!error "code is too large, ends at ", *
}