Exemplo n.º 1
0
bool group_tokens_into_statements(evl_statements &statements, evl_tokens &tokens) { 
	assert(statements.empty());

	for(; !tokens.empty();) {	//generates one statement per iteration
		evl_token token = tokens.front();

		if (token.type != evl_token::NAME) {
			std::cerr << "Need a NAME token but found '" << token.str << "' on line" << token.line_no << std::endl;
			return false;
		}

		if (token.str == "module") {				//MODULE statement
			evl_statement module;
			module.type = evl_statement::MODULE;

			if(!move_tokens_to_statement(module.tokens, tokens)){
				return false;
			}
			statements.push_back(module);
		}
		else if (token.str == "endmodule") {		//ENDMODULE statement
			evl_statement endmodule;
			endmodule.type = evl_statement::ENDMODULE;
			endmodule.tokens.push_back(token);

			tokens.erase(tokens.begin());
			statements.push_back(endmodule);
		}
		else if (token.str == "wire") {			//WIRE statement
			evl_statement wire;
			wire.type = evl_statement::WIRE;

			if(!move_tokens_to_statement(wire.tokens, tokens)){
				return false;
			}
			statements.push_back(wire);
		}
		else {									//COMPONENT statement
			evl_statement component;
			component.type = evl_statement::COMPONENT;

			if(!move_tokens_to_statement(component.tokens, tokens)){
				return false;
			}
			statements.push_back(component);
		}
	}
	return true;
}
bool process_all_statements(evl_statements &statements, evl_module &module, evl_wires &wires, evl_components &components, evl_endmodule &endmodule)
{
	for (; !statements.empty(); statements.pop_front())
	{
		if ((statements.front().type) == (evl_statement::MODULE))
		{
			if (!process_module_statement(module, statements.front()))
			{
				std::cerr << "Wrong MODULE statement when store in Object" << std::endl;
				return	false;
			}
		}
		else if ((statements.front().type) == (evl_statement::WIRE))
		{
			if (!process_wire_statement(wires, statements.front()))
			{
				std::cerr << "Wrong WIRE statement when store in Object" << std::endl;
				return	false;
			}
		}
		else if ((statements.front().type) == (evl_statement::COMPONENT))
		{
			if (!process_component_statement(components, statements.front()))
			{
				std::cerr << "Wrong COMPONENTS statement when store in Object" << std::endl;
				return	false;
			}
		}
		else if ((statements.front().type) == (evl_statement::ENDMODULE))
		{
			if (!process_endmodule_statement(endmodule, statements.front()))
			{
				std::cerr << "Wrong ENDMODULE statement when store in Object" << std::endl;
				return	false;
			}
		}
		else
		{
			std::cerr << "Wrong Statmement Type" << std::endl;
			return false;
		}
	}
	return true;
}
Exemplo n.º 3
0
bool group_tokens_into_statements(evl_statements &statements, evl_tokens &tokens) { 
	assert(statements.empty());

	for(; !tokens.empty();) {	//generates one statement per iteration
		evl_token token = tokens.front();

		if (token.type != evl_token::NAME) {
			std::cerr << "Need a NAME token but found '" << token.str << "' on line" << token.line_no << std::endl;
			return false;
		}

		if ((token.str == "INPUT") || (token.str == "OUTPUT") || (token.str == "AND") ||
			(token.str == "NAND") || (token.str == "OR") || (token.str == "NOR") ||
			(token.str == "DFF") || (token.str == "NOT")) {
			
			evl_statement component;
			component.type = evl_statement::COMPONENT;
			

			if(!move_comp_to_statement(component.tokens, tokens)) {
				return false;
			}

			//INPUT and OUTPUT are both components and wires;
			if ((token.str == "INPUT") || (token.str == "OUTPUT")) {
				evl_statement wire;
				wire.type = evl_statement::WIRE;
				wire.tokens = component.tokens;
				statements.push_back(wire);
			}
			statements.push_back(component);
		}
		else {
			evl_statement wire;
			wire.type = evl_statement::WIRE;

			if(!move_wire_to_statement(wire.tokens, tokens)) {
				return false;
			}
			statements.push_back(wire);
		}
	}
	return true;
}