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43 lines
1.7 KiB
43 lines
1.7 KiB
20 years ago
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/*
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* Linux/PA-RISC Project (http://www.parisc-linux.org/)
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*
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* Floating-point emulation code
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* Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef __NO_PA_HDRS
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PA header file -- do not include this header file for non-PA builds.
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#endif
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/* amount is assumed to be a constant between 0 and 32 (non-inclusive) */
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#define Shiftdouble(left,right,amount,dest) \
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/* int left, right, amount, dest; */ \
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dest = ((left) << (32-(amount))) | ((unsigned int)(right) >> (amount))
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/* amount must be less than 32 */
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#define Variableshiftdouble(left,right,amount,dest) \
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/* unsigned int left, right; int amount, dest; */ \
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if (amount == 0) dest = right; \
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else dest = ((((unsigned) left)&0x7fffffff) << (32-(amount))) | \
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((unsigned) right >> (amount))
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/* amount must be between 0 and 32 (non-inclusive) */
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#define Variable_shift_double(left,right,amount,dest) \
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/* unsigned int left, right; int amount, dest; */ \
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dest = (left << (32-(amount))) | ((unsigned) right >> (amount))
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