Merge Ruby Stuff

1 files changed, 109 insertions, 0 deletions

diff --git a/src/mem/gems_common/util.cc b/src/mem/gems_common/util.cc
new file mode 100644
index 000000000..f1535bdcf
--- /dev/null
+++ b/src/mem/gems_common/util.cc
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "assert.h"
+#include "mem/gems_common/util.hh"
+
+// Split a string into a head and tail strings on the specified
+// character.  Return the head and the string passed in is modified by
+// removing the head, leaving just the tail.
+
+string string_split(string& str, char split_character)
+{
+  string head = "";
+  string tail = "";
+
+  uint counter = 0;
+  while(counter < str.size()) {
+    if (str[counter] == split_character) {
+      counter++;
+      break;
+    } else {
+      head += str[counter];
+    }
+    counter++;
+  }
+
+  while(counter < str.size()) {
+    tail += str[counter];
+    counter++;
+  }
+  str = tail;
+  return head;
+}
+
+string bool_to_string(bool value)
+{
+  if (value) {
+    return "true";
+  } else {
+    return "false";
+  }
+}
+
+string int_to_string(int n, bool zero_fill, int width)
+{
+  ostringstream sstr;
+  if(zero_fill) {
+    sstr << setw(width) << setfill('0') << n;
+  } else {
+    sstr << n;
+  }
+  string str = sstr.str();
+  return str;
+}
+
+float string_to_float(string& str)
+{
+  stringstream sstr(str);
+  float ret;
+  sstr >> ret;
+  return ret;
+}
+
+// Log functions
+int log_int(long long n)
+{
+  assert(n > 0);
+  int counter = 0;
+  while (n >= 2) {
+    counter++;
+    n = n>>(long long)(1);
+  }
+  return counter;
+}
+
+bool is_power_of_2(long long n)
+{
+  return (n == ((long long)(1) << log_int(n)));
+}
+