void VerilatedVcd::printTime (vluint64_t timeui) {
// VCD file format specification does not allow non-integers for timestamps
// Dinotrace doesn't mind, but Cadence vvision seems to choke
if (VL_UNLIKELY(timeui < m_timeLastDump)) {
timeui = m_timeLastDump;
static bool backTime = false;
if (!backTime) {
backTime = true;
VL_PRINTF("VCD time is moving backwards, wave file may be incorrect.\n");
}
}
m_timeLastDump = timeui;
printQuad(timeui);
}
void SpTraceVcd::printTime (uint64_t timeui) {
// VCD file format specification does not allow non-integers for timestamps
// Dinotrace doesn't mind, but Cadence vvision seems to choke
if (SP_UNLIKELY(timeui < m_timeLastDump)) {
timeui = m_timeLastDump;
static bool backTime = false;
if (!backTime) {
backTime = true;
SP_NOTICE_LN(__FILE__,__LINE__, "VCD time is moving backwards, wave file may be incorrect.\n");
}
}
m_timeLastDump = timeui;
printQuad(timeui);
}
bool LRGramar::startGrammarAnalysis(const char codeBuffer[])
{
int returnCode; //每次识别字符串的code
int startPosition = 0; //每次读出字符的起始位置
int charA; //每次从输入串中读出的字符保存到a
int statusTopStack; //栈顶状态
morphology.setPreIsOp(true);//初始化操作符信号
double num = 0; //记录scanner扫描到数字的数值
////////////////////////////////////////////////////////
/*do{
returnCode = morphology.scaner(codeBuffer,startPosition,bufferToken);
if(returnCode == DIGIT)
{
Complier::strToNumber(bufferToken,num);
printf("(%d,%g)\n",returnCode,num);
}
else if(returnCode == ERROR)
{
printf("('%s')不能有该文法生成！\n",bufferToken);
}
else if(returnCode==NOTE)
{
//
}
else
{
printf("(%d,'%s')\n",returnCode,bufferToken);
}
}while(returnCode!=END_JINGHAO);*/
//初始化相关堆栈
quadCount = 0; //记录四元式数组存放位置
nextq = 1; //记录下一个四元式标号
trueChainHead = 0;//记录回填真链的链首
variableBufferPtr = -1;//存放变量名或者标示符的栈的指针
OpPtr = -1;//ptr to the stack of op
tempCount = 0;
startPosition = 0; //每次读出字符的起始位置
statusStackPtr = -1;
charStackPtr = -1;
doTruePtr = -1;
falseChainPtr = -1;
push(statusStack,statusStackPtr,0); //将0状态压入堆栈
push(charStack,charStackPtr,END_JINGHAO);
charA = morphology.scaner(codeBuffer,startPosition,bufferToken); //将字符串读入a
if(charA==DIGIT || charA == IDENTIFIER)//如果为数字或者标示符及时保存
{
strcpy(variableBuffer[++variableBufferPtr],bufferToken);
}
statusTopStack = statusStack[statusStackPtr]; //栈顶状态
int actionStatus = ActionTable[statusTopStack][mapPosition(charA)] ;
while(actionStatus != ACC)
{
//如果是转移状态
if(isTransferStatus(actionStatus))
{
//将状态和a压入堆栈
push(statusStack,statusStackPtr,actionStatus);
push(charStack,charStackPtr,charA);
//读取下一个字符a
do {
charA = morphology.scaner(codeBuffer,startPosition,bufferToken); //将字符串读入a
if(charA==DIGIT || charA == IDENTIFIER)//如果为数字或者标示符及时保存
{
strcpy(variableBuffer[++variableBufferPtr],bufferToken);
}
} while(charA==NOTE);
}
//如果是规约状态
else if(isGuiYueStatus(actionStatus))
{
//用actionStatus所对应的规则（A->a）规约，并将|a|个状态和|a|个输入符号退栈，
//当前栈顶状态为S，将A和GOTO[S][A]=S`进栈
if(!doGuiYue(actionStatus)) //如果规约失败返回错误
{
return false;
}
}
//some status else
else
{
//error
return false;
}
statusTopStack = statusStack[statusStackPtr]; //栈顶状态
actionStatus = ActionTable[statusTopStack][mapPosition(charA)] ;
}
printf("---------------------------------------------------\n");
printQuad();
return true;
}
