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- /* Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /* Put these global register declarations first, because we get an error if
- they come after any function definition, including inlines which might
- be in some header. */
-
- #define REGS \
- REG (bx);\
- REG (si);\
- REG (di)
-
- #define REG(xx) register long int xx asm (#xx)
- REGS;
- #undef REG
-
- #include <ansidecl.h>
- #include <errno.h>
- #include <setjmp.h>
-
- /* Save the current program position in ENV and return 0. */
- int
- DEFUN(__setjmp, (env), jmp_buf env)
- {
- /* Save the general registers. */
- #define REG(xx) env[0].__##xx = xx
- REGS;
-
- /* Save the return PC. */
- env[0].__pc = (PTR) ((PTR *) &env)[-1];
-
- /* Save caller's FP, not our own. */
- env[0].__bp = (PTR) ((PTR *) &env)[-2];
-
- /* Save caller's SP, not our own. */
- env[0].__sp = (PTR) &env;
-
- return 0;
- }
-