diff options
author | Roland McGrath <roland@gnu.org> | 1996-06-16 03:49:40 +0000 |
---|---|---|
committer | Roland McGrath <roland@gnu.org> | 1996-06-16 03:49:40 +0000 |
commit | 5fbef188648f5150617e0a14f1011e600f1b3a0f (patch) | |
tree | 81334ea044e87bc2cf489cc8cb49adab73b9d6dd /sysdeps/unix/sysv/linux/i386 | |
parent | f9496a7b54c27580d4b30cc2b2b40e86738b2b81 (diff) | |
download | glibc-5fbef188648f5150617e0a14f1011e600f1b3a0f.tar glibc-5fbef188648f5150617e0a14f1011e600f1b3a0f.tar.gz glibc-5fbef188648f5150617e0a14f1011e600f1b3a0f.tar.bz2 glibc-5fbef188648f5150617e0a14f1011e600f1b3a0f.zip |
* hurd/Makefile (routines): Add get-host, set-host.
(distribute): Add hurdhost.h.
* hurd/hurdhost.h: New file.
* sysdeps/mach/hurd/gethostname.c: Use _hurd_get_host_config.
* sysdeps/mach/hurd/gethostid.c: Likewise.
* sysdeps/mach/hurd/sethostname.c: Use _hurd_set_host_config.
* sysdeps/mach/hurd/sethostid.c: Likewise.
* hurd/get-host.c: New file.
* hurd/set-host.c: New file.
* math/Makefile (headers): Add fpu_control.h.
(aux): New variable, list fpu_control and setfpucw.
* sysdeps/generic/fpu_control.c: New file.
* sysdeps/stub/fpu_control.h: New file.
* sysdeps/unix/sysv/linux/m68k/fpu_control.h: Moved to ...
* sysdeps/m68k/fpu_control.h: here.
* sysdeps/unix/sysv/linux/i386/fpu_control.h: Moved to ...
* sysdeps/i386/fpu_control.h: here.
* sysdeps/unix/sysv/linux/alpha/fpu_control.h: Moved to ...
* sysdeps/alpha/fpu/fpu_control.h: here. Fixed copyright.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Remove
setfpucw, fpu_control.
* sysdeps/unix/sysv/linux/alpha/fpu_control.c: File removed.
* sysdeps/unix/sysv/linux/setfpucw.c: Moved to ...
* sysdeps/generic/setfpucw.c: here.
(__fpu_control): Variable removed.
(__setfpucw): Use SET even if zero.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/fpu_control.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/fpu_control.h b/sysdeps/unix/sysv/linux/i386/fpu_control.h deleted file mode 100644 index 8c04c1ea11..0000000000 --- a/sysdeps/unix/sysv/linux/i386/fpu_control.h +++ /dev/null @@ -1,104 +0,0 @@ -/* Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc. -This file is part of the GNU C Library. -Contributed by Olaf Flebbe. - -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 _FPU_CONTROL_H -#define _FPU_CONTROL_H - -/* Here is the dirty part. Settup up your 387 through the control word - * (cw) register. - * - * 15-13 12 11-10 9-8 7-6 5 4 3 2 1 0 - * | reserved | IC | RC | PC | reserved | PM | UM | OM | ZM | DM | IM - * - * IM: Invalid operation mask - * DM: Denormalized operand mask - * ZM: Zero-divide mask - * OM: Overflow mask - * UM: Underflow mask - * PM: Precision (inexact result) mask - * - * Mask bit is 1 means no interrupt. - * - * PC: Precision control - * 11 - round to extended precision - * 10 - round to double precision - * 00 - round to single precision - * - * RC: Rounding control - * 00 - rounding to nearest - * 01 - rounding down (toward - infinity) - * 10 - rounding up (toward + infinity) - * 11 - rounding toward zero - * - * IC: Infinity control - * That is for 8087 and 80287 only. - * - * The hardware default is 0x037f. I choose 0x1372. - */ - -#include <features.h> - -/* masking of interrupts */ -#define _FPU_MASK_IM 0x01 -#define _FPU_MASK_DM 0x02 -#define _FPU_MASK_ZM 0x04 -#define _FPU_MASK_OM 0x08 -#define _FPU_MASK_UM 0x10 -#define _FPU_MASK_PM 0x20 - -/* precision control */ -#define _FPU_EXTENDED 0x300 -#define _FPU_DOUBLE 0x200 /* fdlibm requires double precision */ -#define _FPU_SINGLE 0x0 /* DO NOT USE */ - -/* rounding control */ -#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ -#define _FPU_RC_DOWN 0x400 -#define _FPU_RC_UP 0x800 -#define _FPU_RC_ZERO 0xC00 - -#define _FPU_RESERVED 0xF0C0 /* Reserved bits in cw */ - - -/* The fdlibm code requires strict IEEE double precision arithmetic, - and no interrupts for exceptions, rounding to nearest. */ - -#define _FPU_DEFAULT 0x127f - -/* IEEE: same as above, but exceptions */ -#define _FPU_IEEE 0x127f - -/* Type of the control word. */ -typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__))); - -/* Macros for accessing the hardware control word. */ -#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (cw)) -#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (cw)) - -/* Default control word set at startup. */ -extern fpu_control_t __fpu_control; - -__BEGIN_DECLS - -/* Called at startup. It can be used to manipulate fpu control register. */ -extern void __setfpucw __P ((fpu_control_t)); - -__END_DECLS - -#endif /* fpu_control.h */ |