sys.subproj/ppc.subproj/_setjmp.s

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*      int _setjmp(jmp_buf env); */
  24 /*
  25  * Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
  26  *
  27  *      File: sys/ppc/_setjmp.s
  28  *
  29  *      Implements _setjmp()
  30  *
  31  *      History:
  32  *      8 September 1998        Matt Watson (mwatson@apple.com)
  33  *              Created. Derived from setjmp.s
  34  */
  35
  36 #include "SYS.h"
  37 #include <architecture/ppc/asm_help.h>
  38 #include "_setjmp.h"
  39
  40 LEAF(__setjmp)
  41         stw r31, JMP_r31(r3)
  42         /* r1, r2, r13-r30 */
  43         stw r1, JMP_r1(r3)
  44         stw r2, JMP_r2(r3)
  45         stw r13, JMP_r13(r3)
  46         stw r14, JMP_r14(r3)
  47         stw r15, JMP_r15(r3)
  48         stw r16, JMP_r16(r3)
  49         stw r17, JMP_r17(r3)
  50         stw r18, JMP_r18(r3)
  51         stw r19, JMP_r19(r3)
  52         stw r20, JMP_r20(r3)
  53         stw r21, JMP_r21(r3)
  54         stw r22, JMP_r22(r3)
  55         mfcr r0
  56         stw r23, JMP_r23(r3)
  57         stw r24, JMP_r24(r3)
  58         mflr r5
  59         stw r25, JMP_r25(r3)
  60         stw r26, JMP_r26(r3)
  61         mfctr r6                                ; XXX   ctr is volatile
  62         stw r27, JMP_r27(r3)
  63         stw r28, JMP_r28(r3)
  64         mfxer r7                                ; XXX   xer is volatile
  65         stw r29, JMP_r29(r3)
  66         stw r30, JMP_r30(r3)
  67         stw r0, JMP_cr(r3)
  68         stw r5, JMP_lr(r3)
  69         stw r6, JMP_ctr(r3)
  70         stw r7, JMP_xer(r3)
  71         li r3, 0
  72         blr
  73