OpenCores
URL https://opencores.org/ocsvn/scarts/scarts/trunk

Subversion Repositories scarts

[/] [scarts/] [trunk/] [toolchain/] [scarts-newlib/] [newlib-1.17.0/] [newlib/] [libc/] [machine/] [i386/] [setjmp.S] - Blame information for rev 9

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 9 jlechner 
/* This is file is a merger of SETJMP.S and LONGJMP.S */
2 
/*
3 
 *  This file was modified to use the __USER_LABEL_PREFIX__ and
4 
 *  __REGISTER_PREFIX__ macros defined by later versions of GNU cpp by
5 
 *  Joel Sherrill (joel@OARcorp.com)
6 
 *  Slight change: now includes i386mach.h for this (Werner Almesberger)
7 
 *
8 
 * Copyright (C) 1991 DJ Delorie
9 
 * All rights reserved.
10 
 *
11 
 * Redistribution and use in source and binary forms is permitted
12 
 * provided that the above copyright notice and following paragraph are
13 
 * duplicated in all such forms.
14 
 *
15 
 * This file is distributed WITHOUT ANY WARRANTY; without even the implied
16 
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
17 
 */
18 
 
19 
 /*
20 
 **     jmp_buf:
21 
 **      eax ebx ecx edx esi edi ebp esp eip
22 
 **      0   4   8   12  16  20  24  28  32
23 
 */
24 
 
25 
       #include "i386mach.h"
26 
 
27 
        .global SYM (setjmp)
28 
        .global SYM (longjmp)
29 
       SOTYPE_FUNCTION(setjmp)
30 
       SOTYPE_FUNCTION(longjmp)
31 
 
32 
SYM (setjmp):
33 
 
34 
        pushl   ebp
35 
        movl    esp,ebp
36 
 
37 
        pushl   edi
38 
        movl    8 (ebp),edi
39 
 
40 
        movl    eax,0 (edi)
41 
        movl    ebx,4 (edi)
42 
        movl    ecx,8 (edi)
43 
        movl    edx,12 (edi)
44 
        movl    esi,16 (edi)
45 
 
46 
        movl    -4 (ebp),eax
47 
        movl    eax,20 (edi)
48 
 
49 
        movl    0 (ebp),eax
50 
        movl    eax,24 (edi)
51 
 
52 
        movl    esp,eax
53 
        addl    $12,eax
54 
        movl    eax,28 (edi)
55 
 
56 
        movl    4 (ebp),eax
57 
        movl    eax,32 (edi)
58 
 
59 
        popl    edi
60 
        movl    $0,eax
61 
        leave
62 
        ret
63 
 
64 
SYM (longjmp):
65 
        pushl   ebp
66 
        movl    esp,ebp
67 
 
68 
        movl    8(ebp),edi      /* get jmp_buf */
69 
        movl    12(ebp),eax     /* store retval in j->eax */
70 
        movl    eax,0(edi)
71 
 
72 
        movl    24(edi),ebp
73 
 
74 
       __CLI
75 
        movl    28(edi),esp
76 
 
77 
        pushl   32(edi)
78 
 
79 
        movl    0(edi),eax
80 
        movl    4(edi),ebx
81 
        movl    8(edi),ecx
82 
        movl    12(edi),edx
83 
        movl    16(edi),esi
84 
        movl    20(edi),edi
85 
       __STI
86 
 
87 
        ret

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.