two functions have been rewritten in C
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ross
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# $NetBSD: Makefile.inc,v 1.1 2001/03/13 06:39:30 ross Exp $
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# $NetBSD: Makefile.inc,v 1.2 2001/03/22 12:05:36 ross Exp $
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CFLAGS+= -ffloat-store -DFLOATX80 ## -DLONG_DOUBLE_IS_FLOATX80
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SRCS+= systmodes.S systflags.S systfloat.S
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SRCS+= systfloat.S systmodes.S
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@ -1,80 +0,0 @@
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/* $NetBSD: systflags.S,v 1.2 2001/03/13 07:41:26 ross Exp $ */
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/* This is a derivative work. */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ross Harvey.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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===============================================================================
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This GNU assembler source file is part of TestFloat, Release 2a, a package
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of programs for testing the correctness of floating-point arithmetic
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complying to the IEC/IEEE Standard for Floating-Point.
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Written by John R. Hauser. More information is available through the Web
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page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'.
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THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
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has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
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TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
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PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
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AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
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Derivative works are acceptable, even for commercial purposes, so long as
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(1) they include prominent notice that the work is derivative, and (2) they
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include prominent notice akin to these four paragraphs for those parts of
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this code that are retained.
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===============================================================================
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*/
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.text
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/*
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-------------------------------------------------------------------------------
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Clears the system's IEC/IEEE floating-point exception flags. Returns the
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previous value of the flags.
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-------------------------------------------------------------------------------
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*/
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#include <machine/asm.h>
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ENTRY(syst_float_flags_clear)
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fnstsw %ax
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fnclex
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andl $61,%eax
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ret
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@ -1,4 +1,4 @@
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/* $NetBSD: systmodes.S,v 1.2 2001/03/13 07:41:26 ross Exp $ */
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/* $NetBSD: systmodes.S,v 1.3 2001/03/22 12:05:36 ross Exp $ */
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/* This is a derivative work. */
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@ -64,28 +64,8 @@ this code that are retained.
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.text
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/*
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-------------------------------------------------------------------------------
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Sets the system's IEC/IEEE floating-point rounding mode. Also disables all
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system exception traps.
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-------------------------------------------------------------------------------
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*/
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#include <machine/asm.h>
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ENTRY(syst_float_set_rounding_mode)
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movb 4(%esp),%al
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andb $3,%al
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shlw $10,%ax
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orw $63,%ax
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subl $2,%esp
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fnstcw 0(%esp)
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andw $768,0(%esp)
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orw %ax,0(%esp)
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fldcw 0(%esp)
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addl $2,%esp
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ret
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/*
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-------------------------------------------------------------------------------
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Sets the rounding precision of subsequent extended double-precision
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