Transition.py revision 6657
16657Snate@binkert.org# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 26657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 36657Snate@binkert.org# All rights reserved. 46657Snate@binkert.org# 56657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 66657Snate@binkert.org# modification, are permitted provided that the following conditions are 76657Snate@binkert.org# met: redistributions of source code must retain the above copyright 86657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 96657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 106657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 116657Snate@binkert.org# documentation and/or other materials provided with the distribution; 126657Snate@binkert.org# neither the name of the copyright holders nor the names of its 136657Snate@binkert.org# contributors may be used to endorse or promote products derived from 146657Snate@binkert.org# this software without specific prior written permission. 156657Snate@binkert.org# 166657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276657Snate@binkert.org 286657Snate@binkert.orgfrom slicc.symbols.Symbol import Symbol 296657Snate@binkert.org 306657Snate@binkert.orgclass Transition(Symbol): 316657Snate@binkert.org def __init__(self, table, machine, state, event, nextState, actions, 326657Snate@binkert.org location, pairs): 336657Snate@binkert.org ident = "%s|%s" % (state, event) 346657Snate@binkert.org super(Transition, self).__init__(table, ident, location, pairs) 356657Snate@binkert.org 366657Snate@binkert.org self.state = machine.states[state] 376657Snate@binkert.org self.event = machine.events[event] 386657Snate@binkert.org self.nextState = machine.states[nextState] 396657Snate@binkert.org self.actions = [ machine.actions[a] for a in actions ] 406657Snate@binkert.org self.resources = {} 416657Snate@binkert.org 426657Snate@binkert.org for action in self.actions: 436657Snate@binkert.org for var,value in action.resources.iteritems(): 446657Snate@binkert.org if var.type.ident != "DNUCAStopTable": 456657Snate@binkert.org num = int(value) 466657Snate@binkert.org if var in self.resources: 476657Snate@binkert.org num += int(value) 486657Snate@binkert.org self.resources[var] = str(num) 496657Snate@binkert.org else: 506657Snate@binkert.org self.resources[var] = value 516657Snate@binkert.org 526657Snate@binkert.org def __repr__(self): 536657Snate@binkert.org return "[Transition: (%r, %r) -> %r, %r]" % \ 546657Snate@binkert.org (self.state, self.event, self.nextState, self.actions) 556657Snate@binkert.org 566657Snate@binkert.org def getActionShorthands(self): 576657Snate@binkert.org assert self.actions 586657Snate@binkert.org 596657Snate@binkert.org return ''.join(a.short for a in self.actions) 606657Snate@binkert.org 616657Snate@binkert.org__all__ = [ "Transition" ] 62