--- /dev/null
+/* Copyright (C) 1991 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. */
+
+#include <ansidecl.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+/* Jump to the position specified by ENV, causing the
+ setjmp call there to return VAL, or 1 if VAL is 0. */
+__NORETURN
+void
+DEFUN(__longjmp, (env, val), CONST jmp_buf env AND int val)
+{
+ /* This restores the FP and SP that setjmp's caller had,
+ and puts the return address into A0 and VAL into D0. */
+
+#if defined(__HAVE_68881__) || defined(__HAVE_FPU__)
+ /* Restore the floating-point registers. */
+ asm volatile("fmovem%.x %0, fp0-fp7" :
+ /* No outputs. */ : "g" (env[0].__fpregs[0]) :
+ "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7");
+#endif
+
+ /* Put VAL in D0. */
+ asm volatile("move%.l %0, d0" : /* No outputs. */ :
+ "g" (val == 0 ? 1 : val) : "d0");
+
+ asm volatile(/* Restore the data and address registers. */
+ "movem%.l %0, d1-d7/a0-a7\n"
+ /* Return to setjmp's caller. */
+ "jmp a0@" :
+ /* No outputs. */ : "g" (env[0].__dregs[0])
+ /* We don't bother with the clobbers,
+ because this code always jumps out anyway. */
+ );
+
+ /* This call avoids `volatile function does return' warnings. */
+ abort ();
+}
--- /dev/null
+/* Floating-point constants for the 68881.
+ Copyright (C) 1992 Free Software Foundation, Inc. */
+
+/* IGNORE($ This is used internally in the library. */
+#include <sysdeps/ieee754/fl.h>
+/* ansidecl.m4 here inserts the ieee file. Kludge o rama.
+ $) ENDCOMMENT INCLUDE($sysdeps/ieee754/fl.h$) STARTCOMMENT */
+
+#if defined(FLT_ROUNDS) && defined(__GNUC__)
+#undef FLT_ROUNDS
+
+/* Interrogate the 68881 to find the current rounding mode. */
+
+static __const __inline int
+DEFUN_VOID(__flt_rounds)
+{
+ unsigned long int __fpcr;
+ __asm("fmove%.l fpcr, %0" : "=g" (__fpcr));
+ switch (__fpcr & (1 | 2))
+ {
+ case 0:
+ return _FLT_ROUNDS_TONEAREST;
+ case 1:
+ return _FLT_ROUNDS_TOZERO;
+ case 2:
+ return _FLT_ROUNDS_TONEGINF;
+ case 3:
+ return _FLT_ROUNDS_TOPOSINF;
+ default:
+ return _FLT_ROUNDS_INDETERMINATE;
+ }
+}
+
+#define FLT_ROUNDS (__flt_rounds())
+
+#endif