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/*
* scoreboard.h
*
* Created on: Aug 10, 2010
* Author: inder
*/
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <set>
#include "assert.h"
#ifndef SCOREBOARD_H_
#define SCOREBOARD_H_
#include "../abstract_hardware_model.h"
class Scoreboard {
public:
Scoreboard( unsigned sid, unsigned n_warps );
void reserveRegisters(const warp_inst_t *inst);
void releaseRegisters(const warp_inst_t *inst);
void releaseRegister(unsigned wid, unsigned regnum);
bool checkCollision(unsigned wid, const inst_t *inst) const;
bool pendingWrites(unsigned wid) const;
void printContents() const;
private:
void reserveRegister(unsigned wid, unsigned regnum);
unsigned m_sid;
// keeps track of pending writes to registers
// indexed by warp id, reg_id => pending write count
std::vector< std::set<unsigned> > reg_table;
};
#endif /* SCOREBOARD_H_ */
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