Instruction decode generator taken from the PowerPC simulator

and being made more generic.

1 files changed, 94 insertions, 0 deletions

diff --git a/sim/igen/misc.h b/sim/igen/misc.h
new file mode 100644
index 0000000..60351b4
--- /dev/null
+++ b/sim/igen/misc.h
@@ -0,0 +1,94 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ 
+    */
+
+
+/* Frustrating header junk */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <ctype.h>
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#if !defined (__attribute__) && (!defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
+#define __attribute__(arg)
+#endif
+
+
+
+#include "filter_host.h"
+
+extern void error
+(char *msg, ...);
+
+#define ASSERT(EXPRESSION) \
+do { \
+  if (!(EXPRESSION)) { \
+    error("%s:%d: assertion failed - %s\n", \
+	  filter_filename (__FILE__), __LINE__, #EXPRESSION); \
+  } \
+} while (0)
+
+#define ZALLOC(TYPE) (TYPE*)zalloc(sizeof(TYPE))
+
+extern void *zalloc
+(long size);
+
+extern void dumpf
+(int indent, char *msg, ...);
+
+extern unsigned target_a2i
+(int ms_bit_nr,
+ const char *a);
+
+extern unsigned i2target
+(int ms_bit_nr,
+ unsigned bit);
+
+extern unsigned long long a2i
+(const char *a);
+
+/* Try looking for name in the map table (returning the corresponding
+   integer value).  If that fails, try converting the name into an
+   integer */
+
+typedef struct _name_map {
+  const char *name;
+  int i;
+} name_map;
+
+extern int name2i
+(const char *name,
+ const name_map *map);
+
+extern const char *i2name
+(const int i,
+ const name_map *map);