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Diffstat (limited to 'src/mem/slicc/ast/CopyHeadStatementAST.py')
-rw-r--r-- | src/mem/slicc/ast/CopyHeadStatementAST.py | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/CopyHeadStatementAST.py b/src/mem/slicc/ast/CopyHeadStatementAST.py new file mode 100644 index 000000000..ba9970975 --- /dev/null +++ b/src/mem/slicc/ast/CopyHeadStatementAST.py @@ -0,0 +1,52 @@ +# 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.ast.StatementAST import StatementAST + +class CopyHeadStatementAST(StatementAST): + def __init__(self, slicc, in_queue, out_queue, pairs): + super(CopyHeadStatementAST, self).__init__(slicc, pairs) + + self.in_queue = in_queue + self.out_queue_ptr = out_queue + + def __repr__(self): + return "[CopyHeadStatementAst: %r %r]" % (self.in_queue, + self.out_queue) + + def generate(self, code, return_type): + self.in_queue.assertType("InPort") + self.out_queue.assertType("OutPort") + + out_code = self.out_queue.var.code + in_code = self.in_queue.var.code + latency = self.get("latency", "COPY_HEAD_LATENCY") + code("$out_code.enqueue($in_code.getMsgPtrCopy(), $latency);") + + def findResources(self, resources): + var = self.out_queue.var + resources[var] = str(int(resources.get(var, "0")) + 1) |