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101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
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/* This file is part of psim (model of the PowerPC(tm) architecture)
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License
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as published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; 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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PowerPC is a trademark of International Business Machines Corporation. */
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/* Basic type sizes for the PowerPC */
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#ifndef _WORDS_H_
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#define _WORDS_H_
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/* TYPES:
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natural* sign determined by host
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signed* signed type of the given size
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unsigned* The corresponding insigned type
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SIZES
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*NN Size based on the number of bits
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*_NN Size according to the number of bytes
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*_word Size based on the target architecture's word
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word size (32/64 bits)
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*/
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/* bit based */
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typedef char natural8;
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typedef short natural16;
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typedef long natural32;
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typedef long long natural64;
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typedef signed char signed8;
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typedef signed short signed16;
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typedef signed long signed32;
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typedef signed long long signed64;
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typedef unsigned char unsigned8;
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typedef unsigned short unsigned16;
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typedef unsigned long unsigned32;
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typedef unsigned long long unsigned64;
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/* byte based */
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typedef natural8 natural_1;
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typedef natural16 natural_2;
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typedef natural32 natural_4;
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typedef natural64 natural_8;
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typedef signed8 signed_1;
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typedef signed16 signed_2;
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typedef signed32 signed_4;
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typedef signed64 signed_8;
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typedef unsigned8 unsigned_1;
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typedef unsigned16 unsigned_2;
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typedef unsigned32 unsigned_4;
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typedef unsigned64 unsigned_8;
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/* for general work, the following are defined */
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/* unsigned: >= 32 bits */
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/* signed: >= 32 bits */
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/* long: >= 32 bits, sign undefined */
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/* int: small indicator */
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/* target architecture based */
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#if (WITH_64BIT_TARGET)
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typedef natural64 natural_word;
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typedef unsigned64 unsigned_word;
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typedef signed64 signed_word;
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#else
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typedef natural32 natural_word;
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typedef unsigned32 unsigned_word;
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typedef signed32 signed_word;
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#endif
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/* Other instructions */
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typedef unsigned32 instruction_word;
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#endif /* _WORDS_H_ */
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