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Release 3d. See "doc/SoftFloat-history.html".

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John Hauser 2017-08-10 16:26:24 -07:00
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6
COPYING.txt
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@ -1,10 +1,10 @@
License for Berkeley SoftFloat Release 3c
License for Berkeley SoftFloat Release 3d
John R. Hauser
2017 February 10
2017 August 10
The following applies to the whole of SoftFloat Release 3c as well as to
The following applies to the whole of SoftFloat Release 3d as well as to
each source file individually.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the

4
README.html
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@ -7,11 +7,11 @@
<BODY>
<H1>Package Overview for Berkeley SoftFloat Release 3c</H1>
<H1>Package Overview for Berkeley SoftFloat Release 3d</H1>
<P>
John R. Hauser<BR>
2017 February 10<BR>
2017 August 10<BR>
</P>
<P>

4
README.txt
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@ -1,8 +1,8 @@
Package Overview for Berkeley SoftFloat Release 3c
Package Overview for Berkeley SoftFloat Release 3d
John R. Hauser
2017 February 10
2017 August 10
Berkeley SoftFloat is a software implementation of binary floating-point
that conforms to the IEEE Standard for Floating-Point Arithmetic. SoftFloat

2
build/Linux-386-GCC/Makefile
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#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Linux-386-GCC/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/Linux-386-SSE2-GCC/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Linux-386-SSE2-GCC/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/Linux-x86_64-GCC/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Linux-x86_64-GCC/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/Win32-MinGW/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Win32-MinGW/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/Win32-SSE2-MinGW/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Win32-SSE2-MinGW/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/Win64-MinGW-w64/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile is part of the SoftFloat IEEE Floating-Point Arithmetic
# Package, Release 3c, by John R. Hauser.
# Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/Win64-MinGW-w64/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/template-FAST_INT64/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile template is part of the SoftFloat IEEE Floating-Point
# Arithmetic Package, Release 3c, by John R. Hauser.
# Arithmetic Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/template-FAST_INT64/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header template is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
build/template-not-FAST_INT64/Makefile
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@ -2,7 +2,7 @@
#=============================================================================
#
# This Makefile template is part of the SoftFloat IEEE Floating-Point
# Arithmetic Package, Release 3c, by John R. Hauser.
# Arithmetic Package, Release 3d, by John R. Hauser.
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
# University of California. All rights reserved.

2
build/template-not-FAST_INT64/platform.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header template is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

22
doc/SoftFloat-history.html
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@ -7,14 +7,32 @@
<BODY>
<H1>History of Berkeley SoftFloat, to Release 3c</H1>
<H1>History of Berkeley SoftFloat, to Release 3d</H1>
<P>
John R. Hauser<BR>
2017 February 10<BR>
2017 August 10<BR>
</P>
<H3>Release 3d (2017 August)</H3>
<UL>
<LI>
Fixed bugs in the square root functions for <NOBR>64-bit</NOBR>
double-precision, <NOBR>80-bit</NOBR> double-extended-precision, and
<NOBR>128-bit</NOBR> quadruple-precision.
For <NOBR>64-bit</NOBR> double-precision (<CODE>f64_sqrt</CODE>), the result
could sometimes be off by <NOBR>1 unit</NOBR> in the last place
(<NOBR>1 ulp</NOBR>) from what it should be.
For the larger formats, the square root could be wrong in a large portion of
the less-significant bits.
(A bug in <CODE>f128_sqrt</CODE> was first reported by Alexei Sibidanov.)
</UL>
<H3>Release 3c (2017 February)</H3>
<UL>

19
doc/SoftFloat-source.html
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@ -7,11 +7,11 @@
<BODY>
<H1>Berkeley SoftFloat Release 3c: Source Documentation</H1>
<H1>Berkeley SoftFloat Release 3d: Source Documentation</H1>
<P>
John R. Hauser<BR>
2017 February 10<BR>
2017 August 10<BR>
</P>
@ -69,7 +69,7 @@ SoftFloat has been successfully compiled with the GNU C Compiler
<NOBR>Release 2</NOBR> or earlier.
Changes to the interface of SoftFloat functions are documented in
<A HREF="SoftFloat.html"><NOBR><CODE>SoftFloat.html</CODE></NOBR></A>.
The current version of SoftFloat is <NOBR>Release 3c</NOBR>.
The current version of SoftFloat is <NOBR>Release 3d</NOBR>.
</P>
@ -114,7 +114,7 @@ and <CODE>&lt;stdint.h&gt;</CODE></I>.
The SoftFloat package was written by me, <NOBR>John R.</NOBR> Hauser.
<NOBR>Release 3</NOBR> of SoftFloat was a completely new implementation
supplanting earlier releases.
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3c</NOBR>) was
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3d</NOBR>) was
done in the employ of the University of California, Berkeley, within the
Department of Electrical Engineering and Computer Sciences, first for the
Parallel Computing Laboratory (Par Lab) and then for the ASPIRE Lab.
@ -148,7 +148,7 @@ Oracle, and Samsung.
</P>
<P>
The following applies to the whole of SoftFloat <NOBR>Release 3c</NOBR> as well
The following applies to the whole of SoftFloat <NOBR>Release 3d</NOBR> as well
as to each source file individually.
</P>
@ -270,6 +270,15 @@ For the example targets,
<CODE>MinGW</CODE>, or <NOBR><CODE>MinGW-w64</CODE></NOBR>.
</P>
<P>
At the current time, all of the supplied target directories are merely examples
that may or may not be correct for compiling on any particular system.
Despite requests, there are currently no plans to include and maintain in the
SoftFloat package the build files needed for a great many users&rsquo;
compilation environments, which after all can span a broad range of operating
systems, compilers, and other tools.
</P>
<P>
As supplied, each target directory contains two files:
<BLOCKQUOTE>

46
doc/SoftFloat.html
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@ -7,11 +7,11 @@
<BODY>
<H1>Berkeley SoftFloat Release 3c: Library Interface</H1>
<H1>Berkeley SoftFloat Release 3d: Library Interface</H1>
<P>
John R. Hauser<BR>
2017 February 10<BR>
2017 August 10<BR>
</P>
@ -106,26 +106,38 @@ Information about the standard is available elsewhere.
</P>
<P>
The current version of SoftFloat is <NOBR>Release 3c</NOBR>.
The only significant difference between this release and the previous
<NOBR>Release 3b</NOBR> is optional support for a rarely used rounding mode,
<I>round to odd</I>, also known as <I>jamming</I>.
The current version of SoftFloat is <NOBR>Release 3d</NOBR>.
This release fixes bugs that were found in the square root functions for the
<NOBR>64-bit</NOBR>, <NOBR>80-bit</NOBR>, and <NOBR>128-bit</NOBR>
floating-point formats.
(Thanks to Alexei Sibidanov at the University of Victoria for reporting an
incorrect result.)
The bugs affected all prior <NOBR>Release-3</NOBR> versions of SoftFloat.
The flaw in the <NOBR>64-bit</NOBR> floating-point square root function was of
very minor impact, causing a <NOBR>1-ulp</NOBR> error (<NOBR>1 unit</NOBR> in
the last place) a few times out of a billion.
The bugs in the <NOBR>80-bit</NOBR> and <NOBR>128-bit</NOBR> square root
functions were more serious.
Although incorrect results again occurred only a few times out of a billion,
when they did occur a large portion of the less-significant bits could be
wrong.
</P>
<P>
<NOBR>Release 3b</NOBR> differed from the earlier <NOBR>Release 3a</NOBR>
mainly in the addition of support for the <NOBR>16-bit</NOBR> half-precision
format.
Depending on the specific port of SoftFloat, <NOBR>Release 3b</NOBR> may also
have changed the result obtained when conversion of a floating-point number to
an integer format overflows or is otherwise invalid.
<NOBR>Release 3d</NOBR> makes no changes to the SoftFloat library interface
compared to the previous <NOBR>Release 3c</NOBR>.
Since the original <NOBR>Release 3</NOBR>, the main changes to the interface
have been that <NOBR>Release 3b</NOBR> added support for the
<NOBR>16-bit</NOBR> half-precision format, and <NOBR>Release 3c</NOBR> added
optional support for a rarely used rounding mode, <I>round to odd</I>, also
known as <I>jamming</I>.
For more about the evolution of SoftFloat releases, see
<A HREF="SoftFloat-history.html"><NOBR><CODE>SoftFloat-history.html</CODE></NOBR></A>.
</P>
<P>
The functional interface of SoftFloat <NOBR>Release 3</NOBR> and later differs
in many details from that of earlier releases.
in many details from the releases that came before.
For specifics of these differences, see <NOBR>section 9</NOBR> below,
<I>Changes from SoftFloat <NOBR>Release 2</NOBR></I>.
</P>
@ -157,7 +169,7 @@ strictly required.
<P>
Most operations not required by the original 1985 version of the IEEE
Floating-Point Standard but added in the 2008 version are not yet supported in
SoftFloat <NOBR>Release 3c</NOBR>.
SoftFloat <NOBR>Release 3d</NOBR>.
</P>
@ -167,7 +179,7 @@ SoftFloat <NOBR>Release 3c</NOBR>.
The SoftFloat package was written by me, <NOBR>John R.</NOBR> Hauser.
<NOBR>Release 3</NOBR> of SoftFloat was a completely new implementation
supplanting earlier releases.
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3c</NOBR>) was
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3d</NOBR>) was
done in the employ of the University of California, Berkeley, within the
Department of Electrical Engineering and Computer Sciences, first for the
Parallel Computing Laboratory (Par Lab) and then for the ASPIRE Lab.
@ -201,7 +213,7 @@ Oracle, and Samsung.
</P>
<P>
The following applies to the whole of SoftFloat <NOBR>Release 3c</NOBR> as well
The following applies to the whole of SoftFloat <NOBR>Release 3d</NOBR> as well
as to each source file individually.
</P>
@ -383,7 +395,7 @@ comparisons between two values in the same floating-point format.
<P>
The following operations required by the 2008 IEEE Floating-Point Standard are
not supported in SoftFloat <NOBR>Release 3c</NOBR>:
not supported in SoftFloat <NOBR>Release 3d</NOBR>:
<UL>
<LI>
<B>nextUp</B>, <B>nextDown</B>, <B>minNum</B>, <B>maxNum</B>, <B>minNumMag</B>,

2
source/8086-SSE/extF80M_isSignalingNaN.c
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/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/f128M_isSignalingNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToExtF80M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToExtF80UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToF128M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToF128UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToF16UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/8086-SSE/s_commonNaNToF32UI.c
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/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_commonNaNToF64UI.c
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/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_extF80MToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_extF80UIToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_f128MToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_f128UIToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_f16UIToCommonNaN.c
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/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/8086-SSE/s_f32UIToCommonNaN.c
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/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_f64UIToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNExtF80M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNExtF80UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNF128M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNF128UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNF16UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/8086-SSE/s_propagateNaNF32UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/s_propagateNaNF64UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/softfloat_raiseFlags.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086-SSE/specialize.h
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@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/8086/extF80M_isSignalingNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/f128M_isSignalingNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToExtF80M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToExtF80UI.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToF128M.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToF128UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToF16UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/8086/s_commonNaNToF32UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_commonNaNToF64UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_extF80MToCommonNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_extF80UIToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_f128MToCommonNaN.c
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@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_f128UIToCommonNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_f16UIToCommonNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/8086/s_f32UIToCommonNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_f64UIToCommonNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNExtF80M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNExtF80UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNF128M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNF128UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNF16UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/8086/s_propagateNaNF32UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/s_propagateNaNF64UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/softfloat_raiseFlags.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/8086/specialize.h
View File

@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/RISCV/extF80M_isSignalingNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/RISCV/f128M_isSignalingNaN.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/RISCV/s_commonNaNToExtF80M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_commonNaNToExtF80UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_commonNaNToF128M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_commonNaNToF128UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNExtF80M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNExtF80UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNF128M.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNF128UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNF16UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNF32UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/s_propagateNaNF64UI.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.

2
source/RISCV/softfloat_raiseFlags.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/RISCV/specialize.h
View File

@ -2,7 +2,7 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/extF80M_add.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_div.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.

2
source/extF80M_eq.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_eq_signaling.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_le.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_le_quiet.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_lt.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_lt_quiet.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_mul.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_rem.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

2
source/extF80M_roundToInt.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2017 The Regents of the University of
California. All rights reserved.

38
source/extF80M_sqrt.c
View File

@ -2,9 +2,9 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
Copyright 2011, 2012, 2013, 2014, 2015, 2017 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -60,9 +60,9 @@ void extF80M_sqrt( const extFloat80_t *aPtr, extFloat80_t *zPtr )
int32_t expA;
uint64_t rem64;
int32_t expZ;
uint32_t rem[4], sig32A, recipSqrt32, sig32Z, q;
uint32_t rem96[3], sig32A, recipSqrt32, sig32Z, q;
uint64_t sig64Z, x64;
uint32_t term[4], extSigZ[3];
uint32_t rem32, term[4], rem[4], extSigZ[3];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
@ -100,36 +100,40 @@ void extF80M_sqrt( const extFloat80_t *aPtr, extFloat80_t *zPtr )
*------------------------------------------------------------------------*/
expZ = ((expA - 0x3FFF)>>1) + 0x3FFF;
expA &= 1;
softfloat_shortShiftLeft64To96M(
rem64, 30 - expA, &rem[indexMultiwordHi( 4, 3 )] );
softfloat_shortShiftLeft64To96M( rem64, 30 - expA, rem96 );
sig32A = rem64>>32;
recipSqrt32 = softfloat_approxRecipSqrt32_1( expA, sig32A );
sig32Z = ((uint64_t) sig32A * recipSqrt32)>>32;
if ( expA ) sig32Z >>= 1;
rem64 =
((uint64_t) rem[indexWord( 4, 3 )]<<32 | rem[indexWord( 4, 2 )])
((uint64_t) rem96[indexWord( 3, 2 )]<<32 | rem96[indexWord( 3, 1 )])
- (uint64_t) sig32Z * sig32Z;
rem[indexWord( 4, 3 )] = rem64>>32;
rem[indexWord( 4, 2 )] = rem64;
rem96[indexWord( 3, 2 )] = rem64>>32;
rem96[indexWord( 3, 1 )] = rem64;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = ((uint32_t) (rem64>>2) * (uint64_t) recipSqrt32)>>32;
sig64Z = ((uint64_t) sig32Z<<32) + ((uint64_t) q<<3);
x64 = ((uint64_t) sig32Z<<32) + sig64Z;
term[indexWord( 3, 2 )] = 0;
/*------------------------------------------------------------------------
| (Repeating this loop is a rare occurrence.)
*------------------------------------------------------------------------*/
for (;;) {
x64 = ((uint64_t) sig32Z<<32) + sig64Z;
term[indexWord( 3, 1 )] = x64>>32;
term[indexWord( 3, 0 )] = x64;
softfloat_remStep96MBy32(
&rem[indexMultiwordHi( 4, 3 )],
29,
term,
q,
&rem[indexMultiwordHi( 4, 3 )]
);
rem64 = (uint64_t) rem[indexWord( 4, 3 )]<<32 | rem[indexWord( 4, 2 )];
rem96, 29, term, q, &rem[indexMultiwordHi( 4, 3 )] );
rem32 = rem[indexWord( 4, 3 )];
if ( ! (rem32 & 0x80000000) ) break;
--q;
sig64Z -= 1<<3;
}
rem64 = (uint64_t) rem32<<32 | rem[indexWord( 4, 2 )];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = (((uint32_t) (rem64>>2) * (uint64_t) recipSqrt32)>>32) + 2;
if ( rem64>>34 ) q += recipSqrt32;
x64 = (uint64_t) q<<7;
extSigZ[indexWord( 3, 0 )] = x64;
x64 = (sig64Z<<1) + (x64>>32);

2
source/extF80M_sub.c
View File

@ -2,7 +2,7 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.

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