ruby: Import ruby and slicc from GEMS

We eventually plan to replace the m5 cache hierarchy with the GEMS
hierarchy, but for now we will make both live alongside eachother.

1 files changed, 149 insertions, 0 deletions

diff --git a/src/mem/slicc/ast/InPortDeclAST.cc b/src/mem/slicc/ast/InPortDeclAST.cc
new file mode 100644
index 000000000..6b13fec51
--- /dev/null
+++ b/src/mem/slicc/ast/InPortDeclAST.cc
@@ -0,0 +1,149 @@
+
+/*
+ * Copyright (c) 1999-2008 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.
+ */
+
+/*
+ * InPortDeclAST.C
+ *
+ * Description: See InPortDeclAST.h
+ *
+ * $Id$
+ *
+ */
+
+#include "InPortDeclAST.hh"
+#include "SymbolTable.hh"
+#include "Var.hh"
+
+InPortDeclAST::InPortDeclAST(string* ident_ptr,
+                             TypeAST* msg_type_ptr,
+                             ExprAST* var_expr_ptr,
+                             PairListAST* pairs_ptr,
+                             StatementListAST* statement_list_ptr)
+  : DeclAST(pairs_ptr)
+{
+  m_ident_ptr = ident_ptr;
+  m_msg_type_ptr = msg_type_ptr;
+  m_var_expr_ptr = var_expr_ptr;
+  m_statement_list_ptr = statement_list_ptr;
+  m_queue_type_ptr = new TypeAST(new string("InPort"));
+}
+
+InPortDeclAST::~InPortDeclAST()
+{
+  delete m_ident_ptr;
+  delete m_msg_type_ptr;
+  delete m_var_expr_ptr;
+  delete m_statement_list_ptr;
+  delete m_queue_type_ptr;
+}
+
+void InPortDeclAST::generate()
+{
+  string code;
+  Type* queue_type_ptr = m_var_expr_ptr->generate(code);
+  if (!queue_type_ptr->isInPort()) {
+    error("Inport queues must be of a type that has the 'inport' attribute.  The type '" +
+          queue_type_ptr->toString() + "' does not have this attribute.");
+  }
+
+  Type* type_ptr = m_queue_type_ptr->lookupType();
+  Var* in_port_ptr = new Var(*m_ident_ptr, getLocation(), type_ptr, code, getPairs());
+  g_sym_table.newSym(in_port_ptr);
+
+  g_sym_table.pushFrame();
+  Vector<Type*> param_type_vec;
+
+  // Check for Event
+  type_ptr = g_sym_table.getType("Event");
+  if (type_ptr == NULL) {
+    error("in_port declarations require 'Event' enumeration to be defined");
+  }
+  param_type_vec.insertAtBottom(type_ptr);
+
+  // Check for Address
+  type_ptr = g_sym_table.getType("Address");
+  if (type_ptr == NULL) {
+    error("in_port declarations require 'Address' type to be defined");
+  }
+  param_type_vec.insertAtBottom(type_ptr);
+
+  // Add the trigger method - FIXME, this is a bit dirty
+  Map<string, string> pairs;
+  pairs.add("external", "yes");
+  Vector<string> string_vec;
+  g_sym_table.newSym(new Func("trigger", getLocation(), g_sym_table.getType("void"), param_type_vec, string_vec, string(""), pairs, NULL));
+
+  // Check for Event2
+  type_ptr = g_sym_table.getType("Event");
+  if (type_ptr == NULL) {
+    error("in_port declarations require 'Event' enumeration to be defined");
+  }
+  param_type_vec.insertAtBottom(type_ptr);
+
+  // Check for Address2
+  type_ptr = g_sym_table.getType("Address");
+  if (type_ptr == NULL) {
+    error("in_port declarations require 'Address' type to be defined");
+  }
+  param_type_vec.insertAtBottom(type_ptr);
+
+  // Add the doubleTrigger method - this hack supports tiggering two simulateous events
+  // The key is that the second transistion cannot fail because the first event cannot be undone
+  // therefore you must do some checks before calling double trigger to ensure that won't happen
+  g_sym_table.newSym(new Func("doubleTrigger", getLocation(), g_sym_table.getType("void"), param_type_vec, string_vec, string(""), pairs, NULL));
+
+  // Add the continueProcessing method - this hack supports messages that don't trigger events
+  Vector<Type*> empty_param_type_vec;
+  Vector<string> empty_string_vec;
+  g_sym_table.newSym(new Func("continueProcessing", getLocation(), g_sym_table.getType("void"), empty_param_type_vec, empty_string_vec, string(""), pairs, NULL));
+
+  if (m_statement_list_ptr != NULL) {
+    inc_indent();
+    inc_indent();
+    string code;
+    m_statement_list_ptr->generate(code, NULL);
+    in_port_ptr->addPair("c_code_in_port", code);
+    dec_indent();
+    dec_indent();
+  }
+  g_sym_table.popFrame();
+
+  // Add port to state machine
+  StateMachine* machine_ptr = g_sym_table.getStateMachine();
+  if (machine_ptr == NULL) {
+    error("InPort declaration not part of a machine.");
+  }
+  machine_ptr->addInPort(in_port_ptr);
+}
+
+
+void InPortDeclAST::print(ostream& out) const
+{
+  out << "[InPortDecl: " << *m_ident_ptr << "]";
+}