int main(int argc, char* argv[])
{
if (argc !=4)
usage();
string hostsFile=argv[1];
ifstream diff(argv[2]);
port = (unsigned short)atoi(argv[3]);
if (diff.fail()) {
cerr << "error: open diff file" << endl;
usage();
}
if (verbose) cout << "Reading diff..." << endl;
assert(readChanges(diff));
if (verbose) cout << "Reading core info..." << endl;
assert(getCores(hostsFile));
diff.close();
if (verbose) cout << "Getting addresses..."<<endl;
errcheck(getAddrs());
if (verbose) cout << "Constructing stage data..."<<endl;
errcheck(makeStages());
if (verbose) cout << "Opening connections..." << endl;
errcheck(initConnections());
if (verbose) cout << "Transferring stage data..." << endl;
errcheck(sendStages());
int i;
for (i=0;i<3;i++) {
if (verbose) cout << "Doing stage " << i << "..."<<endl;
errcheck(doStage(i));
}
if (verbose) cout << "Closing connections..." <<endl;
errcheck(finishConnections());
if (verbose) cout<<"Reassign complete."<<endl;
}
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);
}
