18 files changed, 688 insertions, 0 deletions
diff --git a/libm/m68k/Makefile.arch b/libm/m68k/Makefile.arch
new file mode 100644
index 000000000..bd38690be
--- /dev/null
+++ b/libm/m68k/Makefile.arch
@@ -0,0 +1,16 @@
+# Makefile for uClibc-ng
+# Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+
+ifeq ($(UCLIBC_HAS_FENV),y)
+libm_ARCH_SRC:=$(wildcard $(libm_ARCH_DIR)/*.c)
+libm_ARCH_OBJ:=$(patsubst $(libm_ARCH_DIR)/%.c,$(libm_ARCH_OUT)/%.o,$(libm_ARCH_SRC))
+endif
+
+libm_ARCH_OBJS:=$(libm_ARCH_OBJ)
+
+ifeq ($(DOPIC),y)
+libm-a-y+=$(libm_ARCH_OBJS:.o=.os)
+else
+libm-a-y+=$(libm_ARCH_OBJS)
+endif
+libm-so-y+=$(libm_ARCH_OBJS:.o=.os)
diff --git a/libm/m68k/fclrexcpt.c b/libm/m68k/fclrexcpt.c
new file mode 100644
index 000000000..904ba5a19
--- /dev/null
+++ b/libm/m68k/fclrexcpt.c
@@ -0,0 +1,39 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+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));
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fedisblxcpt.c b/libm/m68k/fedisblxcpt.c
new file mode 100644
index 000000000..c2c593e38
--- /dev/null
+++ b/libm/m68k/fedisblxcpt.c
@@ -0,0 +1,36 @@
+/* Disable floating-point exceptions.
+   Copyright (C) 2000-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fedisableexcept (int excepts)
+{
+  unsigned int old_exc, new_exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc));
+
+  old_exc = (new_exc >> 6) & FE_ALL_EXCEPT;
+
+  excepts &= FE_ALL_EXCEPT;
+
+  new_exc &= ~(excepts << 6);
+  __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc));
+
+  return old_exc;
+}
diff --git a/libm/m68k/feenablxcpt.c b/libm/m68k/feenablxcpt.c
new file mode 100644
index 000000000..9c01dc28b
--- /dev/null
+++ b/libm/m68k/feenablxcpt.c
@@ -0,0 +1,36 @@
+/* Enable floating-point exceptions.
+   Copyright (C) 2000-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+feenableexcept (int excepts)
+{
+  unsigned int new_exc, old_exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc));
+
+  old_exc = (new_exc >> 6) & FE_ALL_EXCEPT;
+
+  excepts &= FE_ALL_EXCEPT;
+
+  new_exc |= excepts << 6;
+  __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc));
+
+  return old_exc;
+}
diff --git a/libm/m68k/fegetenv.c b/libm/m68k/fegetenv.c
new file mode 100644
index 000000000..2cd0a7c88
--- /dev/null
+++ b/libm/m68k/fegetenv.c
@@ -0,0 +1,33 @@
+/* Store current floating-point environment.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fegetenv (fenv_t *envp)
+{
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
+#endif
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fegetexcept.c b/libm/m68k/fegetexcept.c
new file mode 100644
index 000000000..1be3f8bf5
--- /dev/null
+++ b/libm/m68k/fegetexcept.c
@@ -0,0 +1,29 @@
+/* Get enabled floating-point exceptions.
+   Copyright (C) 2000-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fegetexcept (void)
+{
+  unsigned int exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (exc));
+
+  return (exc >> 6) & FE_ALL_EXCEPT;
+}
diff --git a/libm/m68k/fegetmode.c b/libm/m68k/fegetmode.c
new file mode 100644
index 000000000..19f49922a
--- /dev/null
+++ b/libm/m68k/fegetmode.c
@@ -0,0 +1,26 @@
+/* Store current floating-point control modes.  M68K version.
+   Copyright (C) 2016-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+  _FPU_GETCW (*modep);
+  return 0;
+}
diff --git a/libm/m68k/fegetround.c b/libm/m68k/fegetround.c
new file mode 100644
index 000000000..02f6c4c41
--- /dev/null
+++ b/libm/m68k/fegetround.c
@@ -0,0 +1,28 @@
+/* Return current rounding direction.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fegetround (void)
+{
+  int fpcr;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+
+  return fpcr & FE_UPWARD;
+}
diff --git a/libm/m68k/feholdexcpt.c b/libm/m68k/feholdexcpt.c
new file mode 100644
index 000000000..c0891969a
--- /dev/null
+++ b/libm/m68k/feholdexcpt.c
@@ -0,0 +1,42 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fexcept_t fpcr, fpsr;
+
+  /* Store the environment.  */
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
+#endif
+
+  /* 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 << 6);
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 0;
+}
diff --git a/libm/m68k/fesetenv.c b/libm/m68k/fesetenv.c
new file mode 100644
index 000000000..873eb9abe
--- /dev/null
+++ b/libm/m68k/fesetenv.c
@@ -0,0 +1,63 @@
+/* Install given floating-point environment.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+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.  */
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (temp.__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (temp.__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (temp.__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*&temp));
+#endif
+
+  temp.__status_register &= ~FE_ALL_EXCEPT;
+  temp.__control_register &= ~((FE_ALL_EXCEPT << 6) | FE_UPWARD);
+  if (envp == FE_DFL_ENV)
+    ;
+  else if (envp == FE_NOMASK_ENV)
+    temp.__control_register |= FE_ALL_EXCEPT << 6;
+  else
+    {
+      temp.__control_register |= (envp->__control_register
+				  & ((FE_ALL_EXCEPT << 6) | FE_UPWARD));
+      temp.__status_register |= envp->__status_register & FE_ALL_EXCEPT;
+    }
+
+#ifdef __mcoldfire__
+  __asm__ __volatile__ ("fmove%.l %0,%/fpiar"
+			:: "dm" (temp.__instruction_address));
+  __asm__ __volatile__ ("fmove%.l %0,%/fpcr"
+			:: "dm" (temp.__control_register));
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr"
+			:: "dm" (temp.__status_register));
+#else
+  __asm__ __volatile__ ("fmovem%.l %0,%/fpcr/%/fpsr/%/fpiar" : : "m" (*&temp));
+#endif
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fesetexcept.c b/libm/m68k/fesetexcept.c
new file mode 100644
index 000000000..6ae4a55ea
--- /dev/null
+++ b/libm/m68k/fesetexcept.c
@@ -0,0 +1,30 @@
+/* Set given exception flags.  M68K version.
+   Copyright (C) 2016-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fesetexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+  fpsr |= excepts & FE_ALL_EXCEPT;
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+
+  return 0;
+}
diff --git a/libm/m68k/fesetmode.c b/libm/m68k/fesetmode.c
new file mode 100644
index 000000000..a7e93d616
--- /dev/null
+++ b/libm/m68k/fesetmode.c
@@ -0,0 +1,31 @@
+/* Install given floating-point control modes.  M68K version.
+   Copyright (C) 2016-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fesetmode (const femode_t *modep)
+{
+  femode_t mode;
+  if (modep == FE_DFL_MODE)
+    mode = _FPU_DEFAULT;
+  else
+    mode = *modep;
+  _FPU_SETCW (mode);
+  return 0;
+}
diff --git a/libm/m68k/fesetround.c b/libm/m68k/fesetround.c
new file mode 100644
index 000000000..a8abc4e6e
--- /dev/null
+++ b/libm/m68k/fesetround.c
@@ -0,0 +1,35 @@
+/* Set current rounding direction.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fesetround (int round)
+{
+  fexcept_t fpcr;
+
+  if (round & ~FE_UPWARD)
+    /* ROUND is no valid rounding mode.  */
+    return 1;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+  fpcr &= ~FE_UPWARD;
+  fpcr |= round;
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 0;
+}
diff --git a/libm/m68k/feupdateenv.c b/libm/m68k/feupdateenv.c
new file mode 100644
index 000000000..29dcc712e
--- /dev/null
+++ b/libm/m68k/feupdateenv.c
@@ -0,0 +1,39 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+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.  Incidentally 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);
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fgetexcptflg.c b/libm/m68k/fgetexcptflg.c
new file mode 100644
index 000000000..7a564555b
--- /dev/null
+++ b/libm/m68k/fgetexcptflg.c
@@ -0,0 +1,32 @@
+/* Store current representation for exceptions.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+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;
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fraiseexcpt.c b/libm/m68k/fraiseexcpt.c
new file mode 100644
index 000000000..4599c08f7
--- /dev/null
+++ b/libm/m68k/fraiseexcpt.c
@@ -0,0 +1,106 @@
+/* Raise given exceptions.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <float.h>
+#include <math.h>
+
+int
+feraiseexcept (int excepts)
+{
+#if defined(__mcffpu__)
+
+  /* The Coldfire FPU allows an exception to be raised by asserting
+     the associated EXC bit and then executing an arbitrary arithmetic
+     instruction.  fmove.l is classified as an arithmetic instruction
+     and suffices for this purpose.
+
+     We therefore raise an exception by setting both the EXC and AEXC
+     bit associated with the exception (the former being 6 bits to the
+     left of the latter) and then loading the longword at (%sp) into an
+     FP register.  */
+
+  inline void
+  raise_one_exception (int mask)
+  {
+    if (excepts & mask)
+      {
+	int fpsr;
+	double unused;
+
+	__asm__ volatile ("fmove%.l %/fpsr,%0" : "=d" (fpsr));
+	fpsr |= (mask << 6) | mask;
+	__asm__ volatile ("fmove%.l %0,%/fpsr" :: "d" (fpsr));
+	__asm__ volatile ("fmove%.l (%%sp),%0" : "=f" (unused));
+      }
+  }
+
+  raise_one_exception (FE_INVALID);
+  raise_one_exception (FE_DIVBYZERO);
+  raise_one_exception (FE_OVERFLOW);
+  raise_one_exception (FE_UNDERFLOW);
+  raise_one_exception (FE_INEXACT);
+
+#else
+  /* 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 an invalid operation is 0 * Infinity.  */
+      double d = HUGE_VAL;
+      __asm__ __volatile__ ("fmul%.s %#0r0,%0; fnop" : "=f" (d) : "0" (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;
+
+      __asm__ __volatile__ ("fmul%.x %0,%0; fnop" : "=f" (d) : "0" (d));
+    }
+
+  /* Next: underflow.  */
+  if (excepts & FE_UNDERFLOW)
+    {
+      long double d = -LDBL_MAX;
+
+      __asm__ __volatile__ ("fetox%.x %0; fnop" : "=f" (d) : "0" (d));
+    }
+
+  /* Last: inexact.  */
+  if (excepts & FE_INEXACT)
+    {
+      long double d = 1.0;
+      __asm__ __volatile__ ("fdiv%.s %#0r3,%0; fnop" : "=f" (d) : "0" (d));
+    }
+
+#endif
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/fsetexcptflg.c b/libm/m68k/fsetexcptflg.c
new file mode 100644
index 000000000..18fc1811f
--- /dev/null
+++ b/libm/m68k/fsetexcptflg.c
@@ -0,0 +1,38 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <math.h>
+
+int
+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));
+
+  /* Success.  */
+  return 0;
+}
diff --git a/libm/m68k/ftestexcept.c b/libm/m68k/ftestexcept.c
new file mode 100644
index 000000000..1ece1a48d
--- /dev/null
+++ b/libm/m68k/ftestexcept.c
@@ -0,0 +1,29 @@
+/* Test exception in current environment.
+   Copyright (C) 1997-2025 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#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;
+}