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2000-08-24  Denis Joseph Barrow    <djbarrow@de.ibm.com>

	* sysdeps/s390/fpu/fedisblxcpt.c: New file.
	* sysdeps/s390/fpu/feenablxcpt.c: New file.
	* sysdeps/s390/fpu/fegetexcept.c: New file.
	* sysdeps/s390/fpu/fenv_libc.h: Some reordering, new definition
	FPC_VALID_MASK.
This commit is contained in:
Andreas Jaeger 2000-08-24 09:57:58 +00:00
parent 3b526f89b5
commit 0067c4cffb
5 changed files with 118 additions and 6 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2000-08-24 Denis Joseph Barrow <djbarrow@de.ibm.com>
* sysdeps/s390/fpu/fedisblxcpt.c: New file.
* sysdeps/s390/fpu/feenablxcpt.c: New file.
* sysdeps/s390/fpu/fegetexcept.c: New file.
* sysdeps/s390/fpu/fenv_libc.h: Some reordering, new definition
FPC_VALID_MASK.
2000-08-24 Andreas Jaeger <aj@suse.de>
* malloc/Makefile (extra-objs): Add memusagestat.o.

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sysdeps/s390/fpu/fedisblxcpt.c Normal file
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/* Disable floating-point exceptions.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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_libc.h>
#include <fpu_control.h>
int
fedisableexcept (int excepts)
{
fexcept_t temp, old_exc, new_flags;
_FPU_GETCW (temp);
old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT;
new_flags = (temp & (~((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT)));
_FPU_SETCW (new_flags);
return old_exc;
}

35
sysdeps/s390/fpu/feenablxcpt.c Normal file
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/* Enable floating-point exceptions.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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_libc.h>
#include <fpu_control.h>
int
feenableexcept (int excepts)
{
fexcept_t temp, old_exc, new_flags;
_FPU_GETCW (temp);
old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT;
new_flags = (temp | ((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT));
_FPU_SETCW (new_flags);
return old_exc;
}

31
sysdeps/s390/fpu/fegetexcept.c Normal file
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/* Get enabled floating-point exceptions.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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_libc.h>
#include <fpu_control.h>
int
fegetexcept (void)
{
fexcept_t exc;
_FPU_GETCW (exc);
return ((exc & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT);
}

15
sysdeps/s390/fpu/fenv_libc.h
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@ -22,16 +22,19 @@
#include <fenv.h>
/* Definitions from asm/s390-regs-common.h that are needed in th glibc. */
/* Definitions from asm/s390-regs-common.h that are needed in glibc. */
#define FPC_DXC_MASK 0x0000FF00
#define FPC_EXCEPTION_MASK 0xF8000000
#define FPC_FLAGS_MASK 0x00F80000
#define FPC_DXC_MASK 0x0000FF00
#define FPC_RM_MASK 0x00000003
#define FPC_VALID_MASK ((FPC_EXCEPTION_MASK|FPC_FLAGS_MASK| \
FPC_DXC_MASK|FPC_RM_MASK))
#define FPC_EXCEPTION_MASK_SHIFT 24
#define FPC_FLAGS_SHIFT 16
#define FPC_DXC_SHIFT 8
#define FPC_NOT_FPU_EXCEPTION 0x300
#define FPC_EXCEPTION_MASK_SHIFT 24
#define FPC_FLAGS_SHIFT 16
#define FPC_DXC_SHIFT 8
#define FPC_NOT_FPU_EXCEPTION 0x300
#endif /* _FENV_LIBC_H */