129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
/*
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* Copyright (c) 2011 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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* Picture Elements, Inc., 777 Panoramic Way, Berkeley, CA 94704.
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*/
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# include "parse_misc.h"
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# include "parse_api.h"
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# include "entity.h"
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# include "architec.h"
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# include "expression.h"
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# include "vtype.h"
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# include "compiler.h"
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# include <iostream>
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# include <cassert>
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using namespace std;
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void bind_entity_to_active_scope(const char*ename, ActiveScope*scope)
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{
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perm_string ekey = lex_strings.make(ename);
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std::map<perm_string,Entity*>::const_iterator idx = design_entities.find(ekey);
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if (idx == design_entities.end()) {
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return;
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}
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scope->bind(idx->second);
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}
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void bind_architecture_to_entity(const char*ename, Architecture*arch)
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{
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perm_string ekey = lex_strings.make(ename);
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std::map<perm_string,Entity*>::const_iterator idx = design_entities.find(ekey);
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if (idx == design_entities.end()) {
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cerr << arch->get_fileline() << ": error: No entity " << ekey
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<< " for architecture " << arch->get_name()
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<< "." << endl;
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parse_errors += 1;
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return;
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}
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/* FIXME: entities can have multiple architectures attached to them
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This is to be configured by VHDL's configurations (not yet implemented) */
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Architecture*old_arch = idx->second->add_architecture(arch);
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if (old_arch != arch) {
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cerr << arch->get_fileline() << ": warning: "
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<< "Architecture " << arch->get_name()
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<< " for entity " << idx->first
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<< " is already defined here: " << old_arch->get_fileline() << endl;
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parse_errors += 1;
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}
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}
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const VType* calculate_subtype_array(const YYLTYPE&loc, const char*base_name,
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ScopeBase* /* scope */,
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Expression*array_left,
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bool /* downto*/ ,
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Expression*array_right)
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{
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const VType*base_type = parse_type_by_name(lex_strings.make(base_name));
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if (base_type == 0) {
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errormsg(loc, "Unable to find base type %s of array.\n", base_name);
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return 0;
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}
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assert(array_left==0 || array_right!=0);
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const VTypeArray*base_array = dynamic_cast<const VTypeArray*> (base_type);
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if (base_array) {
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assert(array_left && array_right);
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vector<VTypeArray::range_t> range (base_array->dimensions());
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// For now, I only know how to handle 1 dimension
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assert(base_array->dimensions() == 1);
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range[0] = VTypeArray::range_t(array_left, array_right);
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VTypeArray*subtype = new VTypeArray(base_array->element_type(), range, base_array->signed_vector());
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return subtype;
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}
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return base_type;
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}
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const VType* calculate_subtype_range(const YYLTYPE&loc, const char*base_name,
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ScopeBase*scope,
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Expression*range_left,
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bool /* downto*/ ,
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Expression*range_right)
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{
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const VType*base_type = parse_type_by_name(lex_strings.make(base_name));
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if (base_type == 0) {
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errormsg(loc, "Unable to find base type %s of range.\n", base_name);
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return 0;
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}
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assert(range_left && range_right);
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int64_t left_val, right_val;
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bool rc = range_left->evaluate(scope, left_val);
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if (rc == false)
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return 0;
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rc = range_right->evaluate(scope, right_val);
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if (rc == false)
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return 0;
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VTypeRange*sub_type = new VTypeRange(base_type, left_val, right_val);
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return sub_type;
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}
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