void IOKey(void *argv){
reg_type receiver_control = LoadWord(RECEIVER_CONTROL);
SetBit(&receiver_control, IO_INTERRUPT_ENABLE);
while(!prog_finished && (WaitForSingleObject(hRunMutex, 75L) == WAIT_TIMEOUT)){
if(kbhit()){
char ch = getch();
/* for(size_t i = 0 ; i < 1000; i++)
printf("Inside if kbhit() ch = %c\n", ch);*/
StoreByte(ch, RECEIVER_DATA);
//muxtex in StoreByte function
if(bitState(cpo_reg[STATUS], INTERRUPT_ENABLE) && bitState(cpo_reg[STATUS], EXCEPTION_LEVEL)
&& bitState(receiver_control, IO_INTERRUPT_ENABLE)){
SetCause(INTERRUPT);
SetBit(&cpo_reg[CAUSE], 0XD);//set pending bit
/*need to rectify perhaps*/
SetBit(&receiver_control, IO_READY);
StoreWord(receiver_control, RECEIVER_CONTROL);
/* for(size_t i = 0 ; i < 1000; i++)
printf("Inside inside of kbhit() set state cause: %X\n", cpo_reg[CAUSE]);*/
}//end of if
}//end of if kbhit
ReleaseMutex(hRunMutex);//unlock
}//end of while prog_finished
}
void StartSimulator()
{
std::vector<std::string> current_instruction;
int r0,r1,r2,res,desination;
Tomasulo tomasulo(
configuration.addsub_delay,
configuration.mul_delay,
configuration.div_delay,
configuration.instruction_q_depth,
configuration.addsub_rs,
configuration.muldiv_rs,
configuration.load_q_depth,
configuration.store_q_depth);
reg[0]=0;//make reg 0 always 0
while(1)
{
current_instruction=commands_vector[pc];
//simulate load instruction
executetime += LoadWord(PCtoAddress(pc),&desination);
executetime++;
if (!tomasulo.isInstQueueFull()) {
tomasulo.addToQueue(current_instruction);
}
tomasulo.doWork();
DoWork();
instructioncount++;
if(current_instruction[1]=="halt")
return;
if(current_instruction[1]=="j")
{
pc=lables_map[current_instruction[2]];
continue;
}
if(current_instruction[1]=="add")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
r2=GetRegNumberFromString(current_instruction[4]);
reg[r0]=reg[r1]+reg[r2];
pc++;
continue;
}
if(current_instruction[1]=="sub")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
r2=GetRegNumberFromString(current_instruction[4]);
reg[r0]=reg[r1]-reg[r2];
pc++;
continue;
}
if(current_instruction[1]=="mul")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
r2=GetRegNumberFromString(current_instruction[4]);
reg[r0]=reg[r1]*reg[r2];
pc++;
continue;
}
if(current_instruction[1]=="div")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
r2=GetRegNumberFromString(current_instruction[4]);
reg[r0]=reg[r1]/reg[r2];
pc++;
continue;
}
if(current_instruction[1]=="slt")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
r2=GetRegNumberFromString(current_instruction[4]);
reg[r0]=reg[r1]<reg[r2]?1:0;
pc++;
continue;
}
if(current_instruction[1]=="addi")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
res=MyAtoi(current_instruction[4]);
reg[r0]=reg[r1]+res;
pc++;
continue;
}
if(current_instruction[1]=="subi")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
res=MyAtoi(current_instruction[4]);
reg[r0]=reg[r1]-res;
pc++;
continue;
}
if(current_instruction[1]=="slti")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
res=MyAtoi(current_instruction[4]);
reg[r0]=reg[r1]<res?1:0;
pc++;
continue;
}
if(current_instruction[1]=="beq")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
if(reg[r0]==reg[r1])
{
pc=lables_map[current_instruction[4]];
continue;
}
pc++;
continue;
}
if(current_instruction[1]=="bne")
{
r0=GetRegNumberFromString(current_instruction[2]);
r1=GetRegNumberFromString(current_instruction[3]);
if(reg[r0]!=reg[r1])
{
pc=lables_map[current_instruction[4]];
continue;
}
pc++;
continue;
}
if(current_instruction[1]=="lw")
{
r0=GetRegNumberFromString(current_instruction[2]);
res=GetOffset(current_instruction[3]);
r1=GetRegNumberFromString(current_instruction[3].substr(current_instruction[3].find_first_of(")")+1,std::string::npos));
executetime += LoadWord((reg[r1]+res)/4,®[r0]);
pc++;
continue;
}
if(current_instruction[1]=="sw")
{
r0=GetRegNumberFromString(current_instruction[2]);
res=GetOffset(current_instruction[3]);
r1=GetRegNumberFromString(current_instruction[3].substr(current_instruction[3].find_first_of(")")+1,std::string::npos));
executetime += StoreWord((reg[r1]+res)/4,®[r0]);
pc++;
continue;
}
printf("unknown instruction\n");
exit(1);
}
}
