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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/m68k/coldfire/fpu/fraiseexcpt.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/m68k/coldfire/fpu/fraiseexcpt.c')
-rw-r--r--sysdeps/m68k/coldfire/fpu/fraiseexcpt.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/sysdeps/m68k/coldfire/fpu/fraiseexcpt.c b/sysdeps/m68k/coldfire/fpu/fraiseexcpt.c
deleted file mode 100644
index 4220a6b877..0000000000
--- a/sysdeps/m68k/coldfire/fpu/fraiseexcpt.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Raise given exceptions.
- Copyright (C) 2006-2017 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 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
- <http://www.gnu.org/licenses/>. */
-
-#include <fenv.h>
-#include <float.h>
-#include <math.h>
-
-int
-__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.
-
- 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);
-
- /* Success. */
- return 0;
-}
-libm_hidden_def (__feraiseexcept)
-weak_alias (__feraiseexcept, feraiseexcept)
-libm_hidden_weak (feraiseexcept)