1 /*-------------------------------------------------------------------------
2 setjmp.c - source file for ANSI routines setjmp & longjmp
4 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
6 This library is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Library General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 In other words, you are welcome to use, share and improve this program.
21 You are forbidden to forbid anyone else to use, share and improve
22 what you give them. Help stamp out software-hoarding!
23 -------------------------------------------------------------------------*/
28 int longjmp (unsigned char *bp, int rv)
32 *((unsigned char data *) lsp) = *bp++;
33 *((unsigned char data *) lsp - 1) = *bp;
38 int setjmp (unsigned char *bp)
40 /* registers would have been saved on the
41 stack anyway so we need to save SP
42 and the return address */
43 *bp++ = *((unsigned char data *) SP );
44 *bp++ = *((unsigned char data *)SP - 1);