1 1.7 uwe /* $NetBSD: _setjmp.S,v 1.7 2006/01/05 02:04:41 uwe Exp $ */ 2 1.1 msaitoh 3 1.1 msaitoh /*- 4 1.1 msaitoh * Copyright (c) 1990 The Regents of the University of California. 5 1.1 msaitoh * All rights reserved. 6 1.1 msaitoh * 7 1.1 msaitoh * This code is derived from software contributed to Berkeley by 8 1.1 msaitoh * William Jolitz. 9 1.1 msaitoh * 10 1.1 msaitoh * Redistribution and use in source and binary forms, with or without 11 1.1 msaitoh * modification, are permitted provided that the following conditions 12 1.1 msaitoh * are met: 13 1.1 msaitoh * 1. Redistributions of source code must retain the above copyright 14 1.1 msaitoh * notice, this list of conditions and the following disclaimer. 15 1.1 msaitoh * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 msaitoh * notice, this list of conditions and the following disclaimer in the 17 1.1 msaitoh * documentation and/or other materials provided with the distribution. 18 1.2 agc * 3. Neither the name of the University nor the names of its contributors 19 1.1 msaitoh * may be used to endorse or promote products derived from this software 20 1.1 msaitoh * without specific prior written permission. 21 1.1 msaitoh * 22 1.1 msaitoh * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 1.1 msaitoh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.1 msaitoh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.1 msaitoh * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 1.1 msaitoh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 1.1 msaitoh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 1.1 msaitoh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 1.1 msaitoh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 1.1 msaitoh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.1 msaitoh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.1 msaitoh * SUCH DAMAGE. 33 1.1 msaitoh * 34 1.1 msaitoh * from: @(#)_setjmp.s 5.1 (Berkeley) 4/23/90 35 1.1 msaitoh */ 36 1.1 msaitoh 37 1.1 msaitoh #include <machine/asm.h> 38 1.6 uwe #include <machine/setjmp.h> 39 1.6 uwe 40 1.1 msaitoh #if defined(LIBC_SCCS) 41 1.7 uwe RCSID("$NetBSD: _setjmp.S,v 1.7 2006/01/05 02:04:41 uwe Exp $") 42 1.1 msaitoh #endif 43 1.1 msaitoh 44 1.1 msaitoh /* 45 1.1 msaitoh * C library -- _setjmp, _longjmp 46 1.1 msaitoh * 47 1.1 msaitoh * _longjmp(a,v) 48 1.1 msaitoh * will generate a "return(v)" from the last call to 49 1.1 msaitoh * _setjmp(a) 50 1.1 msaitoh * by restoring registers from the stack. 51 1.1 msaitoh * The previous signal state is NOT restored. 52 1.1 msaitoh */ 53 1.1 msaitoh 54 1.1 msaitoh ENTRY(_setjmp) 55 1.6 uwe add #((_JB_HAS_MASK + 1) * 4), r4 56 1.1 msaitoh mov #0, r0 57 1.6 uwe mov.l r0, @-r4 /* no saved signal mask */ 58 1.1 msaitoh mov.l r15, @-r4 59 1.1 msaitoh mov.l r14, @-r4 60 1.1 msaitoh mov.l r13, @-r4 61 1.1 msaitoh mov.l r12, @-r4 62 1.1 msaitoh mov.l r11, @-r4 63 1.1 msaitoh mov.l r10, @-r4 64 1.1 msaitoh mov.l r9, @-r4 65 1.1 msaitoh mov.l r8, @-r4 66 1.1 msaitoh sts.l pr, @-r4 67 1.1 msaitoh rts 68 1.5 uwe xor r0, r0 69 1.7 uwe SET_ENTRY_SIZE(_setjmp) 70 1.1 msaitoh 71 1.1 msaitoh ENTRY(_longjmp) 72 1.1 msaitoh lds.l @r4+, pr 73 1.1 msaitoh mov.l @r4+, r8 74 1.1 msaitoh mov.l @r4+, r9 75 1.1 msaitoh mov.l @r4+, r10 76 1.1 msaitoh mov.l @r4+, r11 77 1.1 msaitoh mov.l @r4+, r12 78 1.1 msaitoh mov.l @r4+, r13 79 1.1 msaitoh mov.l @r4+, r14 80 1.1 msaitoh mov.l @r4+, r15 81 1.1 msaitoh 82 1.1 msaitoh mov r5, r0 83 1.1 msaitoh tst r0, r0 84 1.1 msaitoh bf .L0 85 1.1 msaitoh add #1, r0 86 1.1 msaitoh .L0: 87 1.1 msaitoh rts 88 1.5 uwe nop 89 1.7 uwe SET_ENTRY_SIZE(_longjmp) 90
Indexes created Fri Sep 26 08:10:20 GMT 2025