Initial revision

1 files changed, 284 insertions, 0 deletions

diff --git a/sim/igen/misc.c b/sim/igen/misc.c
new file mode 100644
index 00000000000..8490132f32e
--- /dev/null
+++ b/sim/igen/misc.c
@@ -0,0 +1,284 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1997, 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.
+ 
+    */
+
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+#include "config.h"
+#include "misc.h"
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+/* NB: Because warning and error can be interchanged, neither append a
+   trailing '\n' */
+
+void
+error (const line_ref *line,
+       char *msg,
+       ...)
+{
+  va_list ap;
+  if (line != NULL)
+    fprintf (stderr, "%s:%d: ", line->file_name, line->line_nr);
+  va_start (ap, msg);
+  vfprintf (stderr, msg, ap);
+  va_end (ap);
+  exit (1);
+}
+
+void
+warning (const line_ref *line,
+	 char *msg,
+	 ...)
+{
+  va_list ap;
+  if (line != NULL)
+    fprintf (stderr, "%s:%d: warning: ", line->file_name, line->line_nr);
+  va_start (ap, msg);
+  vfprintf (stderr, msg, ap);
+  va_end (ap);
+}
+
+void
+notify (const line_ref *line,
+	char *msg,
+	...)
+{
+  va_list ap;
+  if (line != NULL)
+    fprintf (stdout, "%s %d: info: ", line->file_name, line->line_nr);
+  va_start(ap, msg);
+  vfprintf (stdout, msg, ap);
+  va_end(ap);
+}
+
+void *
+zalloc(long size)
+{
+  void *memory = malloc(size);
+  if (memory == NULL)
+    ERROR ("zalloc failed");
+  memset(memory, 0, size);
+  return memory;
+}
+
+
+unsigned long long
+a2i (const char *a)
+{
+  int neg = 0;
+  int base = 10;
+  unsigned long long num = 0;
+  int looping;
+  
+  while (isspace (*a))
+    a++;
+  
+  if (strcmp (a, "true") == 0
+      || strcmp (a, "TRUE") == 0)
+    return 1;
+
+  if (strcmp (a, "false") == 0
+      || strcmp (a, "false") == 0)
+    return 0;
+
+  if (*a == '-')
+    {
+      neg = 1;
+      a++;
+    }
+  
+  if (*a == '0')
+    {
+      if (a[1] == 'x' || a[1] == 'X')
+	{
+	  a += 2;
+	  base = 16;
+	}
+      else if (a[1] == 'b' || a[1] == 'b')
+	{
+	  a += 2;
+	  base = 2;
+	}
+      else
+	base = 8;
+    }
+  
+  looping = 1;
+  while (looping)
+    {
+      int ch = *a++;
+      
+      switch (base)
+	{
+	default:
+	  looping = 0;
+	  break;
+	  
+	case 2:
+	  if (ch >= '0' && ch <= '1')
+	    {
+	      num = (num * 2) + (ch - '0');
+	    }
+	  else
+	    {
+	      looping = 0;
+	    }
+	  break;
+	  
+	case 10:
+	  if (ch >= '0' && ch <= '9')
+	    {
+	      num = (num * 10) + (ch - '0');
+	    }
+	  else
+	    {
+	      looping = 0;
+	    }
+	  break;
+	  
+	case 8:
+	  if (ch >= '0' && ch <= '7')
+	    {
+	      num = (num * 8) + (ch - '0');
+	    }
+	  else
+	    {
+	      looping = 0;
+	    }
+	  break;
+	  
+	case 16:
+	  if (ch >= '0' && ch <= '9')
+	    {
+	      num = (num * 16) + (ch - '0');
+	    }
+	  else if (ch >= 'a' && ch <= 'f')
+	    {
+	      num = (num * 16) + (ch - 'a' + 10);
+	    }
+	  else if (ch >= 'A' && ch <= 'F')
+	    {
+	      num = (num * 16) + (ch - 'A' + 10);
+	    }
+	  else
+	    {
+	      looping = 0;
+	    }
+	  break;
+	}
+    }
+  
+  if (neg)
+    num = - num;
+
+  return num;
+}
+
+unsigned
+target_a2i(int ms_bit_nr,
+	   const char *a)
+{
+  if (ms_bit_nr)
+    return (ms_bit_nr - a2i(a));
+  else
+    return a2i(a);
+}
+
+unsigned
+i2target(int ms_bit_nr,
+	 unsigned bit)
+{
+  if (ms_bit_nr)
+    return ms_bit_nr - bit;
+  else
+    return bit;
+}
+
+
+int
+name2i (const char *names,
+        const name_map *map)
+{
+  const name_map *curr;
+  const char *name = names;
+  while (*name != '\0')
+    {
+      /* find our name */
+      char *end = strchr(name, ',');
+      char *next;
+      unsigned len;
+      if (end == NULL)
+	{
+	  end = strchr(name, '\0');
+	  next = end;
+	}
+      else
+	{
+	  next = end + 1;
+	}
+      len = end - name;
+      /* look it up */
+      curr = map;
+      while (curr->name != NULL)
+	{
+	  if (strncmp (curr->name, name, len) == 0
+	      && strlen (curr->name) == len)
+	    return curr->i;
+	  curr++;
+	}
+      name = next;
+    }
+  /* nothing found, possibly return a default */
+  curr = map;
+  while (curr->name != NULL)
+    curr++;
+  if (curr->i >= 0)
+    return curr->i;
+  else
+    error (NULL, "%s contains no valid names", names);
+  return 0;
+}
+
+const char *
+i2name (const int i,
+        const name_map *map)
+{
+  while (map->name != NULL)
+    {
+      if (map->i == i)
+	return map->name;
+      map++;
+    }
+  error (NULL, "map lookup failed for %d\n", i);
+  return NULL;
+}