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authorMichael Meissner <gnu@the-meissners.org>1995-08-23 21:06:36 +0000
committerMichael Meissner <gnu@the-meissners.org>1995-08-23 21:06:36 +0000
commitcb7a68927ab066fb794ed40ad38f601845516fe4 (patch)
tree393e8c5129cfacb4fdf20ecbbeb8125c06041a7f /sim/ppc/words.h
parent19c3fec4bf74083f6136dd64e4b503426c77b474 (diff)
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Add PowerPC simulator from Andrew Cagney <cagney@highland.com.au>
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+/* This file is part of psim (model of the PowerPC(tm) architecture)
+
+ Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License
+ as published by the Free Software Foundation; either version 2 of
+ the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ --
+
+ PowerPC is a trademark of International Business Machines Corporation. */
+
+
+/* Basic type sizes for the PowerPC */
+
+#ifndef _WORDS_H_
+#define _WORDS_H_
+
+/* TYPES:
+
+ natural* sign determined by host
+ signed* signed type of the given size
+ unsigned* The corresponding insigned type
+
+ SIZES
+
+ *NN Size based on the number of bits
+ *_NN Size according to the number of bytes
+ *_word Size based on the target architecture's word
+ word size (32/64 bits)
+
+*/
+
+
+/* bit based */
+typedef char natural8;
+typedef short natural16;
+typedef long natural32;
+typedef long long natural64;
+
+typedef signed char signed8;
+typedef signed short signed16;
+typedef signed long signed32;
+typedef signed long long signed64;
+
+typedef unsigned char unsigned8;
+typedef unsigned short unsigned16;
+typedef unsigned long unsigned32;
+typedef unsigned long long unsigned64;
+
+
+/* byte based */
+typedef natural8 natural_1;
+typedef natural16 natural_2;
+typedef natural32 natural_4;
+typedef natural64 natural_8;
+
+typedef signed8 signed_1;
+typedef signed16 signed_2;
+typedef signed32 signed_4;
+typedef signed64 signed_8;
+
+typedef unsigned8 unsigned_1;
+typedef unsigned16 unsigned_2;
+typedef unsigned32 unsigned_4;
+typedef unsigned64 unsigned_8;
+
+
+/* for general work, the following are defined */
+/* unsigned: >= 32 bits */
+/* signed: >= 32 bits */
+/* long: >= 32 bits, sign undefined */
+/* int: small indicator */
+
+/* target architecture based */
+#if (WITH_64BIT_TARGET)
+typedef natural64 natural_word;
+typedef unsigned64 unsigned_word;
+typedef signed64 signed_word;
+#else
+typedef natural32 natural_word;
+typedef unsigned32 unsigned_word;
+typedef signed32 signed_word;
+#endif
+
+
+/* Other instructions */
+typedef unsigned32 instruction_word;
+
+#endif /* _WORDS_H_ */