bool CmdInstrument::onClientVM(DebuggerClient *client) {
if (DebuggerCommand::onClient(client)) return true;
if (client->argCount() == 1) {
if (client->argValue(1) == "list" || client->argValue(1) == "l") {
listInst(client);
return true;
}
if (client->argValue(1) == "clear" || client->argValue(1) == "c") {
clearInst(client);
return true;
}
}
if (client->argCount() < 2 || client->argValue(1) == "help") {
return help(client);
}
std::string loc = client->argValue(1);
std::string file = client->argValue(2);
std::string desc;
if (client->argCount() >= 3) {
desc = client->argValue(3);
}
Variant code = f_file_get_contents(file.c_str());
if (code.isNull()) {
client->error("Unable to read from file %s", file.c_str());
return false;
}
m_instPoints = client->getInstPoints();
if (loc == "here") {
InstPointInfoPtr ipi(new InstPointInfo());
ipi->setLocHere();
ipi->m_code = code.toString();
ipi->m_desc = desc;
m_instPoints->push_back(ipi);
} else if (loc.rfind("()") == loc.size() - 2){
InstPointInfoPtr ipi(new InstPointInfo());
ipi->setLocFuncEntry(loc.substr(0, loc.size() - 2));
ipi->m_code = code.toString();
ipi->m_desc = desc;
m_instPoints->push_back(ipi);
} else {
client->error("Not implemented\n");
return true;
}
m_type = ActionWrite;
CmdInstrumentPtr instCmdPtr = client->xend<CmdInstrument>(this);
if (!instCmdPtr->m_enabled) {
client->error("Instrumentation is not enabled on the server");
}
client->setInstPoints(instCmdPtr->m_ips);
CmdInstrument::PrintInstPoints(client);
return true;
}
int main(int argc, char *argv[])
{
InstInfo curInst[5];
InstInfo newInst;
InstInfo * saved;
int instnum = 0;
int maxpc;
int count=0;
int cycles; // total cycles in the pipeline
int needsFetch = 1; // fetching flag, 1 to fetch, 0 not to fetch
int stall = 0; // stall flag, 1 to stall, 0 not to stall
int isTaken = 0;
int i=0;
int j=0;
FILE *program;
if (argc != 2)
{
printf("Usage: sim filename\n");
exit(0);
}
maxpc = load(argv[1]);
cycles = maxpc + 4;//**************************change to + 4 for REAL output
if(debug)printf("cycles : %d \n" , cycles);
if(debug)printLoad(maxpc);
// initialize 5 instructions with 0
for(i=0; i<5; i++){
pipelineInsts[i]= &curInst[i];
pipelineInsts[i]->inst=0;
if(debug)printf("DEBUG: pipelineInsts[%d]: %d\n", i, pipelineInsts[i]->inst);
}
do{
doStage(needsFetch, &stall, &cycles, &count); // doStage calls stage functions
saved = pipelineInsts[4]; // save the unused pointer for reuse
// setting needsFetch flag
if(count < maxpc)
needsFetch = 1;
else
needsFetch = 0;
if(debug)printf("DEBUG: stall value: %d\n", stall);
// if stall is not being set
if(!stall){
if(debug)printf("DEBUG: no stall\n");
if(debug)printf("DEBUG: not stall before, pipelineInst[0] ----> %d, %s\n", pipelineInsts[0]->inst, pipelineInsts[0]->string);
printP2(pipelineInsts[0], pipelineInsts[1], pipelineInsts[2], pipelineInsts[3], pipelineInsts[4], count);
//shift down 4 instructions
for(i=4; i>0; i--){
pipelineInsts[i]=pipelineInsts[i-1];
}
//printf("DEBUG: no stall, swap....\n");
//printP2(pipelineInsts[0], pipelineInsts[1], pipelineInsts[2], pipelineInsts[3], pipelineInsts[4], count);
//saved->inst = 0; // reset inst = 0
pipelineInsts[0] = saved; // reuse the unused inst pointer
clearInst(pipelineInsts[0]);
if(debug)printf("DEBUG: not stall after, pipelineInst[0] ----> %d, %s\n", pipelineInsts[0]->inst, pipelineInsts[0]->string);
}
// if stall is being set
else{
if(debug)printf("DEBUG: stall before, pipelineInst[0] ----> %d, %s\n", pipelineInsts[0]->inst, pipelineInsts[0]->string);
if(debug)printf("DEBUG: stalls\n");
printP2(pipelineInsts[0], pipelineInsts[1], pipelineInsts[2], pipelineInsts[3], pipelineInsts[4], count);
pipelineInsts[4] = pipelineInsts[3]; // shift down memory stage
pipelineInsts[3] = pipelineInsts[2]; // shitf down execute stage
saved->inst = 0; // reset the unused inst to be 0
pipelineInsts[2] = saved; // stall the execute stage
clearInst(pipelineInsts[2]);
stall = 0; // reset stall flag
cycles++;
if(debug)printf("DEBUG: stall after, pipelineInst[0] ----> %d, %s\n", pipelineInsts[0]->inst, pipelineInsts[0]->string);
//printf("DEBUG: stall, swap....\n");
//printP2(pipelineInsts[0], pipelineInsts[1], pipelineInsts[2], pipelineInsts[3], pipelineInsts[4], count);
}
count++; // increment count for cycles
}while(count < cycles);
// put in your own variables
printf("Cycles: %d\n", count);
printf("Instructions Executed: %d\n", maxpc);
exit(0);
}
