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author | John Hauser <jhauser@eecs.berkeley.edu> | 2014-11-28 19:49:28 -0800 |
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committer | John Hauser <jhauser@eecs.berkeley.edu> | 2014-11-28 19:49:28 -0800 |
commit | 8f59d925353145a65c09301dea6c47da1f1311b1 (patch) | |
tree | c55a81490cc411be6c812a5bfcc8fdc48296def9 /source/s_shiftRightJam64Extra.c | |
download | berkeley-softfloat-3-8f59d925353145a65c09301dea6c47da1f1311b1.zip berkeley-softfloat-3-8f59d925353145a65c09301dea6c47da1f1311b1.tar.gz berkeley-softfloat-3-8f59d925353145a65c09301dea6c47da1f1311b1.tar.bz2 |
First draft of RC for Release 3, to start review process.
Diffstat (limited to 'source/s_shiftRightJam64Extra.c')
-rw-r--r-- | source/s_shiftRightJam64Extra.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/source/s_shiftRightJam64Extra.c b/source/s_shiftRightJam64Extra.c new file mode 100644 index 0000000..6d80085 --- /dev/null +++ b/source/s_shiftRightJam64Extra.c @@ -0,0 +1,59 @@ + +/*============================================================================ + +This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014 The Regents of the University of California +(Regents). All Rights Reserved. Redistribution and use in source and binary +forms, with or without modification, are permitted provided that the following +conditions are met: + +Redistributions of source code must retain the above copyright notice, +this list of conditions, and the following two paragraphs of disclaimer. +Redistributions in binary form must reproduce the above copyright notice, +this list of conditions, and the following two paragraphs of disclaimer in the +documentation and/or other materials provided with the distribution. Neither +the name of the Regents nor the names of its contributors may be used to +endorse or promote products derived from this software without specific prior +written permission. + +IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, +SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING +OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS +BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED +TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED +HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE +MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + +=============================================================================*/ + +#include <stdint.h> +#include "platform.h" +#include "primitives.h" + +#ifndef softfloat_shiftRightJam64Extra + +struct uint64_extra + softfloat_shiftRightJam64Extra( + uint64_t a, uint64_t extra, uint_fast32_t count ) +{ + struct uint64_extra z; + + if ( count < 64 ) { + z.v = a>>count; + z.extra = a<<(-count & 63); + } else { + z.v = 0; + z.extra = (count == 64) ? a : (a != 0); + } + z.extra |= (extra != 0); + return z; + +} + +#endif + |