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-rw-r--r--sysdeps/m68k/fpu/fclrexcpt.c39
-rw-r--r--sysdeps/m68k/fpu/fegetenv.c27
-rw-r--r--sysdeps/m68k/fpu/fegetround.c31
-rw-r--r--sysdeps/m68k/fpu/feholdexcpt.c39
-rw-r--r--sysdeps/m68k/fpu/fenvbits.h80
-rw-r--r--sysdeps/m68k/fpu/fesetenv.c48
-rw-r--r--sysdeps/m68k/fpu/fesetround.c38
-rw-r--r--sysdeps/m68k/fpu/feupdateenv.c39
-rw-r--r--sysdeps/m68k/fpu/fgetexcptflg.c32
-rw-r--r--sysdeps/m68k/fpu/fraiseexcpt.c74
-rw-r--r--sysdeps/m68k/fpu/fsetexcptflg.c38
-rw-r--r--sysdeps/m68k/fpu/ftestexcept.c32
-rw-r--r--sysdeps/m68k/fpu/mathbits.h36
-rw-r--r--sysdeps/m68k/fpu/s_remquo.c58
-rw-r--r--sysdeps/m68k/fpu/s_remquof.c3
-rw-r--r--sysdeps/m68k/fpu/s_remquol.c3
16 files changed, 617 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/fclrexcpt.c b/sysdeps/m68k/fpu/fclrexcpt.c
new file mode 100644
index 0000000000..b914bac9f9
--- /dev/null
+++ b/sysdeps/m68k/fpu/fclrexcpt.c
@@ -0,0 +1,39 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+void
+feclearexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Mask out unsupported bits/exceptions.  */
+  excepts &= FE_ALL_EXCEPT;
+
+  /* Fetch the fpu status register.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  /* Clear the relevant bits.  */
+  fpsr &= ~excepts;
+
+  /* Put the new data in effect.  */
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+}
diff --git a/sysdeps/m68k/fpu/fegetenv.c b/sysdeps/m68k/fpu/fegetenv.c
new file mode 100644
index 0000000000..59f743aecf
--- /dev/null
+++ b/sysdeps/m68k/fpu/fegetenv.c
@@ -0,0 +1,27 @@
+/* Store current floating-point environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+void
+fegetenv (fenv_t *envp)
+{
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr,%0" : "=m" (*envp));
+}
diff --git a/sysdeps/m68k/fpu/fegetround.c b/sysdeps/m68k/fpu/fegetround.c
new file mode 100644
index 0000000000..1837a84271
--- /dev/null
+++ b/sysdeps/m68k/fpu/fegetround.c
@@ -0,0 +1,31 @@
+/* Return current rounding direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+int
+fegetround (void)
+{
+  int fpcr;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+
+  return fpcr & FE_UPWARD;
+}
diff --git a/sysdeps/m68k/fpu/feholdexcpt.c b/sysdeps/m68k/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..351fa8ae75
--- /dev/null
+++ b/sysdeps/m68k/fpu/feholdexcpt.c
@@ -0,0 +1,39 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fexcept_t fpcr, fpsr;
+
+  /* Store the environment.  */
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr,%0" : "=m" (*envp));
+
+  /* Now clear all exceptions.  */
+  fpsr = envp->status_register & ~FE_ALL_EXCEPT;
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+  /* And set all exceptions to non-stop.  */
+  fpcr = envp->control_register & ~(FE_ALL_EXCEPT << 5);
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 1;
+}
diff --git a/sysdeps/m68k/fpu/fenvbits.h b/sysdeps/m68k/fpu/fenvbits.h
new file mode 100644
index 0000000000..b653b1aafd
--- /dev/null
+++ b/sysdeps/m68k/fpu/fenvbits.h
@@ -0,0 +1,80 @@
+/* Copyright (C) 1997 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This file should never be included directly.  */
+
+#ifndef _FENVBITS_H
+#define _FENVBITS_H	1
+
+/* Define bits representing the exception.  We use the bit positions of
+   the appropriate bits in the FPSR Accrued Exception Byte.  */
+enum
+  {
+    FE_INEXACT = 1 << 3,
+#define FE_INEXACT	FE_INEXACT
+    FE_DIVBYZERO = 1 << 4,
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_UNDERFLOW = 1 << 5,
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_OVERFLOW = 1 << 6,
+#define FE_OVERFLOW	FE_OVERFLOW
+    FE_INVALID = 1 << 7
+#define FE_INVALID	FE_INVALID
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The m68k FPU supports all of the four defined rounding modes.  We use
+   the bit positions in the FPCR Mode Control Byte as the values for the
+   appropriate macros.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST	FE_TONEAREST
+    FE_TOWARDSZERO = 1 << 4,
+#define FE_TOWARDSZERO	FE_TOWARDSZERO
+    FE_DOWNWARD = 2 << 4,
+#define FE_DOWNWARD	FE_DOWNWARD
+    FE_UPWARD = 3 << 4
+#define FE_UPWARD	FE_UPWARD
+  };
+
+
+/* Type representing exception flags.  */
+typedef unsigned int fexcept_t;
+
+
+/* Type representing floating-point environment.  This structure
+   corresponds to the layout of the block written by `fmovem'.  */
+typedef struct
+  {
+    fexcept_t control_register;
+    fexcept_t status_register;
+  }
+fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked.  */
+# define FE_NOMASK_ENV	((fenv_t *) -2)
+#endif
+
+#endif /* fenvbits.h */
diff --git a/sysdeps/m68k/fpu/fesetenv.c b/sysdeps/m68k/fpu/fesetenv.c
new file mode 100644
index 0000000000..f6611a20e0
--- /dev/null
+++ b/sysdeps/m68k/fpu/fesetenv.c
@@ -0,0 +1,48 @@
+/* Install given floating-point environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+void
+fesetenv (const fenv_t *envp)
+{
+  fenv_t temp;
+
+  /* Install the environment specified by ENVP.  But there are a few
+     values which we do not want to come from the saved environment.
+     Therefore, we get the current environment and replace the values
+     we want to use from the environment specified by the parameter.  */
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr,%0" : "=m" (*&temp));
+
+  temp.status_register &= ~FE_ALL_EXCEPT;
+  temp.control_register &= ~((FE_ALL_EXCEPT << 5) | FE_UPWARD);
+  if (envp == FE_DFL_ENV)
+    ;
+  else if (envp == FE_NOMASK_ENV)
+    temp.control_register |= FE_ALL_EXCEPT << 5;
+  else
+    {
+      temp.control_register |= (envp->control_register
+				& ((FE_ALL_EXCEPT << 5) | FE_UPWARD));
+      temp.status_register |= envp->status_register & FE_ALL_EXCEPT;
+    }
+
+  __asm__ __volatile__ ("fmovem%.l %0,%/fpcr/%/fpsr" : : "m" (temp));
+}
diff --git a/sysdeps/m68k/fpu/fesetround.c b/sysdeps/m68k/fpu/fesetround.c
new file mode 100644
index 0000000000..8d5466c956
--- /dev/null
+++ b/sysdeps/m68k/fpu/fesetround.c
@@ -0,0 +1,38 @@
+/* Set current rounding direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+int
+fesetround (int round)
+{
+  fexcept_t fpcr;
+
+  if (round & ~FE_UPWARD)
+    /* ROUND is no valid rounding mode.  */
+    return 0;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+  fpcr &= ~FE_UPWARD;
+  fpcr |= round;
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 1;
+}
diff --git a/sysdeps/m68k/fpu/feupdateenv.c b/sysdeps/m68k/fpu/feupdateenv.c
new file mode 100644
index 0000000000..f5922b4de4
--- /dev/null
+++ b/sysdeps/m68k/fpu/feupdateenv.c
@@ -0,0 +1,39 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+void
+feupdateenv (const fenv_t *envp)
+{
+  fexcept_t fpsr;
+
+  /* Save current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+  fpsr &= FE_ALL_EXCEPT;
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the saved exception.  Incidently for us the implementation
+     defined format of the values in objects of type fexcept_t is the
+     same as the ones specified using the FE_* constants.  */
+  feraiseexcept ((int) fpsr);
+}
diff --git a/sysdeps/m68k/fpu/fgetexcptflg.c b/sysdeps/m68k/fpu/fgetexcptflg.c
new file mode 100644
index 0000000000..4086e1a97f
--- /dev/null
+++ b/sysdeps/m68k/fpu/fgetexcptflg.c
@@ -0,0 +1,32 @@
+/* Store current representation for exceptions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+void
+fegetexceptflag (fexcept_t *flagp, int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get the current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  *flagp = fpsr & excepts & FE_ALL_EXCEPT;
+}
diff --git a/sysdeps/m68k/fpu/fraiseexcpt.c b/sysdeps/m68k/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..b6ff82760d
--- /dev/null
+++ b/sysdeps/m68k/fpu/fraiseexcpt.c
@@ -0,0 +1,74 @@
+/* Raise given exceptions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+#include <math.h>
+
+void
+feraiseexcept (int excepts)
+{
+  /* Raise exceptions represented by EXCEPTS.  But we must raise only one
+     signal at a time.  It is important that if the overflow/underflow
+     exception and the divide by zero exception are given at the same
+     time, the overflow/underflow exception follows the divide by zero
+     exception.  */
+
+  /* First: invalid exception.  */
+  if (excepts & FE_INVALID)
+    {
+      /* One example of a invalid operation is 0 * Infinity.  */
+      double d = 0.0 * HUGE_VAL;
+      /* Now force the exception.  */
+      __asm__ __volatile__ ("fnop" : : "f" (d));
+    }
+
+  /* Next: division by zero.  */
+  if (excepts & FE_DIVBYZERO)
+    {
+      double d = 1.0;
+      __asm__ __volatile__ ("fdiv%.s %#0r0,%0; fnop" : "=f" (d) : "0" (d));
+    }
+
+  /* Next: overflow.  */
+  if (excepts & FE_OVERFLOW)
+    {
+      long double d = LDBL_MAX * LDBL_MAX;
+      /* Now force the exception.  */
+      __asm__ __volatile__ ("fnop" : : "f" (d));
+    }
+
+  /* Next: underflow.  */
+  if (excepts & FE_UNDERFLOW)
+    {
+      long double d = LDBL_MIN / 16.0;
+      /* Now force the exception.  */
+      __asm__ __volatile__ ("fnop" : : "f" (d));
+    }
+
+  /* Last: inexact.  */
+  if (excepts & FE_INEXACT)
+    {
+      long double d1, d2 = 1.0;
+      __asm__ __volatile__ ("fmovecr %#0,%0\n\t"
+			    "fdiv%.x %1,%0\n\t"
+			    "fnop"
+			    : "=&f" (d1) : "f" (d2));
+    }
+}
diff --git a/sysdeps/m68k/fpu/fsetexcptflg.c b/sysdeps/m68k/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..aa92ffd0c5
--- /dev/null
+++ b/sysdeps/m68k/fpu/fsetexcptflg.c
@@ -0,0 +1,38 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+#include <math.h>
+
+void
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get the current status register.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  /* Install the new exception bits in the Accrued Exception Byte.  */
+  fpsr &= ~(excepts & FE_ALL_EXCEPT);
+  fpsr |= *flagp & excepts & FE_ALL_EXCEPT;
+
+  /* Store the new status register.  */
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+}
diff --git a/sysdeps/m68k/fpu/ftestexcept.c b/sysdeps/m68k/fpu/ftestexcept.c
new file mode 100644
index 0000000000..c092ce18e3
--- /dev/null
+++ b/sysdeps/m68k/fpu/ftestexcept.c
@@ -0,0 +1,32 @@
+/* Test exception in current environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+
+int
+fetestexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  return fpsr & excepts & FE_ALL_EXCEPT;
+}
diff --git a/sysdeps/m68k/fpu/mathbits.h b/sysdeps/m68k/fpu/mathbits.h
new file mode 100644
index 0000000000..049662319a
--- /dev/null
+++ b/sysdeps/m68k/fpu/mathbits.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 1997 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _MATHBITS_H
+#define _MATHBITS_H	1
+
+/* The m68k FPUs evaluate all values in the 96 bit floating-point format
+   which is also available for the user as `long double'.  Therefore we
+   define: */
+typedef long double float_t;	/* `float' expressions are evaluated as
+				   `long double'.  */
+typedef long double double_t;	/* `double' expressions are evaluated as
+				   `long double'.  */
+
+/* Signal that both types are `long double'.  */
+#define FLT_EVAL_METHOD	2
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VALL
+
+#endif /* mathbits.h */
diff --git a/sysdeps/m68k/fpu/s_remquo.c b/sysdeps/m68k/fpu/s_remquo.c
new file mode 100644
index 0000000000..3682ba7896
--- /dev/null
+++ b/sysdeps/m68k/fpu/s_remquo.c
@@ -0,0 +1,58 @@
+/* Compute remainder and a congruent to the quotient.  m68k fpu version
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define __LIBC_M81_MATH_INLINES
+#include <math.h>
+
+#ifndef SUFF
+#define SUFF
+#endif
+#ifndef float_type
+#define float_type double
+#endif
+
+#define CONCATX(a,b) __CONCAT(a,b)
+#define s(name) CONCATX(name,SUFF)
+
+float_type
+s(__remquo) (float_type x, float_type y, int *quo)
+{
+  float_type result;
+  int cquo, fpsr;
+
+  /* FIXME: Which of frem and fmod is correct?  */
+#if 1
+  __asm ("frem%.x %2,%0\n\tfmove%.l %/fpsr,%1"
+	 : "=f" (result), "=dm" (fpsr) : "f" (y), "0" (x));
+  cquo = (fpsr >> 16) & 0x7f;
+  if ((result > 0) != (x > 0))
+    cquo--;
+#else
+  __asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
+	 : "=f" (result), "=dm" (fpsr) : "f" (y), "0" (x));
+  cquo = (fpsr >> 16) & 0x7f;
+#endif
+  if (fpsr & (1 << 23))
+    cquo = -cquo;
+  *quo = cquo;
+  return result;
+}
+#define weak_aliasx(a,b) weak_alias(a,b)
+weak_aliasx (s(__remquo), s(remquo))
diff --git a/sysdeps/m68k/fpu/s_remquof.c b/sysdeps/m68k/fpu/s_remquof.c
new file mode 100644
index 0000000000..8a292fc26c
--- /dev/null
+++ b/sysdeps/m68k/fpu/s_remquof.c
@@ -0,0 +1,3 @@
+#define SUFF f
+#define float_type float
+#include <s_remquo.c>
diff --git a/sysdeps/m68k/fpu/s_remquol.c b/sysdeps/m68k/fpu/s_remquol.c
new file mode 100644
index 0000000000..d236cfd1f9
--- /dev/null
+++ b/sysdeps/m68k/fpu/s_remquol.c
@@ -0,0 +1,3 @@
+#define SUFF l
+#define float_type long double
+#include <s_remquo.c>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-04 21:38:35 +0000