/// <summary>
/// Get inputs from instruction partitioner.
/// We assume that host core can only process intructions(Not Functions and InstrcutionBlocks).
/// When core encountered a non-instruction, return error.
/// </summary>
/// <returns>Instruction to be processed. If none, NOP.</returns>
public Instruction get_ins_from_insp()
{
//current block has un-processed instructions
if (current_block != null)
{
//get current instructions
var item = current_block.get_ins(this.cycle);
if (item != null)
{
bandwidth_bit = bandwidth_bit + item.Length();
return(item);
}
else
{
//current block is empty
if (block_latency.Any(s => s.Key == current_block.name))
{
block_latency[current_block.name] += cycle - current_block.servetime;
}
block_latency.Add(current_block.name, cycle - current_block.servetime);
current_block = null;
}
}
Input tp;
if (Config.trace_type == Trace_Type.PC)
{
tp = ins_p.get_req(this.pid, false, this.pc);
}
else
{
tp = ins_p.get_req(this.pid, false);
}
if (tp is Instruction)
{
switch ((tp as Instruction).type)
{
case InstructionType.READ:
read_reqs++;
break;
case InstructionType.WRITE:
write_reqs++;
break;
case InstructionType.NOP:
nop++;
break;
case InstructionType.CALCULATION:
cal_ins++;
break;
default:
break;
}
if ((tp as Instruction).is_mem)
{
(tp as Instruction).block_addr = tlb.scan_page((tp as Instruction).address);
}
if (Config.DEBUG_PIM)
{
DEBUG.WriteLine("-- Current Instruction : " + (tp as Instruction).ToString());
}
bandwidth_bit = bandwidth_bit + (tp as Instruction).Length();
return(tp as Instruction);
}
else
{
if (tp is InstructionBlock)
{
total_block_load++;
current_block = tp as InstructionBlock;
var item = current_block.get_ins(this.cycle);
if (item == null)
{
DEBUG.Error("Block Instructions cannot be none!");
Environment.Exit(2);
}
if (block_count.Any(s => s.Key == current_block.name))
{
block_count[current_block.name]++;
}
else
{
block_count.Add(current_block.name, 1);
}
if (Config.DEBUG_PIM)
{
DEBUG.WriteLine("-- Fetched Block : " + (tp as InstructionBlock).ToString());
}
bandwidth_bit = bandwidth_bit + (item as Instruction).Length();
return(item);
}
else
{
if (tp is PCTrace)
{
pc = (tp as PCTrace).PC - 1;
var res = (tp as PCTrace).parsetoIns();
res.block_addr = tlb.scan_page(res.address);
return(res);
}
else
{
if (Config.DEBUG_PIM)
{
DEBUG.Error("-- Receieved a FUNCTION Input.");
}
Environment.Exit(Error.InputArgsError);
return(null);
}
}
}
}
