slicc: Pure python implementation of slicc.

This is simply a translation of the C++ slicc into python with very minimal
reorganization of the code.  The output can be verified as nearly identical
by doing a "diff -wBur".

Slicc can easily be run manually by using util/slicc

1 files changed, 61 insertions, 0 deletions

diff --git a/src/mem/slicc/symbols/Transition.py b/src/mem/slicc/symbols/Transition.py
new file mode 100644
index 000000000..1bf09048a
--- /dev/null
+++ b/src/mem/slicc/symbols/Transition.py
@@ -0,0 +1,61 @@
+# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+# Copyright (c) 2009 The Hewlett-Packard Development Company
+# 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.
+
+from slicc.symbols.Symbol import Symbol
+
+class Transition(Symbol):
+    def __init__(self, table, machine, state, event, nextState, actions,
+                 location, pairs):
+        ident = "%s|%s" % (state, event)
+        super(Transition, self).__init__(table, ident, location, pairs)
+
+        self.state = machine.states[state]
+        self.event = machine.events[event]
+        self.nextState = machine.states[nextState]
+        self.actions = [ machine.actions[a] for a in actions ]
+        self.resources = {}
+
+        for action in self.actions:
+            for var,value in action.resources.iteritems():
+                if var.type.ident != "DNUCAStopTable":
+                    num = int(value)
+                    if var in self.resources:
+                        num += int(value)
+                    self.resources[var] = str(num)
+                else:
+                    self.resources[var] = value
+
+    def __repr__(self):
+      return "[Transition: (%r, %r) -> %r, %r]" % \
+             (self.state, self.event, self.nextState, self.actions)
+
+    def getActionShorthands(self):
+        assert self.actions
+
+        return ''.join(a.short for a in self.actions)
+
+__all__ = [ "Transition" ]