63 lines
2.2 KiB
ArmAsm
63 lines
2.2 KiB
ArmAsm
;
|
|
; Copyright (c) 2004, Adam Dunkels and Oliver Schmidt
|
|
; All rights reserved.
|
|
;
|
|
; Redistribution and use in source and binary forms, with or without
|
|
; modification, are permitted provided that the following conditions
|
|
; are met:
|
|
; 1. Redistributions of source code must retain the above copyright
|
|
; notice, this list of conditions and the following disclaimer.
|
|
; 2. Redistributions in binary form must reproduce the above copyright
|
|
; notice, this list of conditions and the following disclaimer in the
|
|
; documentation and/or other materials provided with the distribution.
|
|
; 3. Neither the name of the Institute nor the names of its contributors
|
|
; may be used to endorse or promote products derived from this software
|
|
; without specific prior written permission.
|
|
;
|
|
; THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
; ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
; SUCH DAMAGE.
|
|
;
|
|
; This file is part of the Contiki operating system.
|
|
;
|
|
; Author: Adam Dunkels <adam@sics.se>, Oliver Schmidt <ol.sc@web.de>
|
|
;
|
|
;---------------------------------------------------------------------
|
|
.importzp ptr1
|
|
.export _lc_set
|
|
.export _lc_resume
|
|
;---------------------------------------------------------------------
|
|
_lc_set:
|
|
sta ptr1
|
|
stx ptr1+1
|
|
tsx
|
|
lda $0102,x
|
|
ldy #$01
|
|
sta (ptr1),y
|
|
lda $0101,x
|
|
dey
|
|
sta (ptr1),y
|
|
rts
|
|
;---------------------------------------------------------------------
|
|
_lc_resume:
|
|
sta ptr1
|
|
stx ptr1+1
|
|
ldy #$01
|
|
lda (ptr1),y
|
|
beq :+
|
|
tsx
|
|
sta $0102,x
|
|
dey
|
|
lda (ptr1),y
|
|
sta $0101,x
|
|
: rts
|
|
;---------------------------------------------------------------------
|