69 lines
3.5 KiB
C
69 lines
3.5 KiB
C
/*************************************************************************/
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/* */
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/* Language Technologies Institute */
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/* Carnegie Mellon University */
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/* Copyright (c) 2005 */
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/* All Rights Reserved. */
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/* */
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/* Permission is hereby granted, free of charge, to use and distribute */
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/* this software and its documentation without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of this work, and to */
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/* permit persons to whom this work is furnished to do so, subject to */
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/* the following conditions: */
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/* 1. The code must retain the above copyright notice, this list of */
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/* conditions and the following disclaimer. */
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/* 2. Any modifications must be clearly marked as such. */
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/* 3. Original authors' names are not deleted. */
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/* 4. The authors' names are not used to endorse or promote products */
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/* derived from this software without specific prior written */
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/* permission. */
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/* */
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/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
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/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
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/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
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/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
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/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
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/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
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/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
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/* THIS SOFTWARE. */
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/* */
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/*************************************************************************/
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/* Author: Alan W Black (awb@cs.cmu.edu) */
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/* Date: February 2005 */
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/*************************************************************************/
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/* */
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/* Implements setjmp/longjmp, which of course can't be done by calling */
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/* back to m68k land as that has different registers */
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/* */
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/* From a message from Wolfgang Spraul pno list */
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/*************************************************************************/
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#include <PalmOS.h>
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#include <string.h>
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#include "PceNativeCall.h"
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#include "CoreTraps.h"
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#include "cst_error.h"
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#include "pocore.h"
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int setjmp(register jmp_buf env)
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{
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asm("stmia a1,{v1-v8,sp,lr};"
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"mov a1,#0;" /* return 0 */
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"bx lr;");
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return 0;
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}
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void longjmp(register jmp_buf env, register int value)
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{
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asm("ldmia a1,{v1-v8,sp,lr};"
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"movs a1,a2;" /* return value as setjmp() result code */
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"moveq a1,#1;" /* return 1 instead of 0 */
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"bx lr;");
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return;
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}
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