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mase-commit.h
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/* mase-commit.h - sim-mase commit stage */
/* MASE was created by Eric Larson, Saugata Chatterjee, Dan Ernst, and
* Todd M. Austin at the University of Michigan.
*/
/* SimpleScalar(TM) Tool Suite
* Copyright (C) 1994-2001 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
* All Rights Reserved.
*
* THIS IS A LEGAL DOCUMENT, BY USING SIMPLESCALAR,
* YOU ARE AGREEING TO THESE TERMS AND CONDITIONS.
*
* No portion of this work may be used by any commercial entity, or for any
* commercial purpose, without the prior, written permission of SimpleScalar,
* LLC ([email protected]). Nonprofit and noncommercial use is permitted
* as described below.
*
* 1. SimpleScalar is provided AS IS, with no warranty of any kind, express
* or implied. The user of the program accepts full responsibility for the
* application of the program and the use of any results.
*
* 2. Nonprofit and noncommercial use is encouraged. SimpleScalar may be
* downloaded, compiled, executed, copied, and modified solely for nonprofit,
* educational, noncommercial research, and noncommercial scholarship
* purposes provided that this notice in its entirety accompanies all copies.
* Copies of the modified software can be delivered to persons who use it
* solely for nonprofit, educational, noncommercial research, and
* noncommercial scholarship purposes provided that this notice in its
* entirety accompanies all copies.
*
* 3. ALL COMMERCIAL USE, AND ALL USE BY FOR PROFIT ENTITIES, IS EXPRESSLY
* PROHIBITED WITHOUT A LICENSE FROM SIMPLESCALAR, LLC ([email protected]).
*
* 4. No nonprofit user may place any restrictions on the use of this software,
* including as modified by the user, by any other authorized user.
*
* 5. Noncommercial and nonprofit users may distribute copies of SimpleScalar
* in compiled or executable form as set forth in Section 2, provided that
* either: (A) it is accompanied by the corresponding machine-readable source
* code, or (B) it is accompanied by a written offer, with no time limit, to
* give anyone a machine-readable copy of the corresponding source code in
* return for reimbursement of the cost of distribution. This written offer
* must permit verbatim duplication by anyone, or (C) it is distributed by
* someone who received only the executable form, and is accompanied by a
* copy of the written offer of source code.
*
* 6. SimpleScalar was developed by Todd M. Austin, Ph.D. The tool suite is
* currently maintained by SimpleScalar LLC ([email protected]). US Mail:
* 2395 Timbercrest Court, Ann Arbor, MI 48105.
*
* Copyright (C) 2000-2001 by The Regents of The University of Michigan.
* Copyright (C) 1994-2001 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
*/
/* Clears out invalid blind speculation recoveries resulting from a current
* recovery. */
void
blind_spec_recover(void);
/* Commits the results of the oldest completed entries from the
* ROB and LSQ to the architected reg file. Stores in the LSQ will commit
* their store data to the data cache as well. */
void
mase_commit(void);
/* Recover processor microarchitecture state back to point at
* ROB[recover_index]. */
void
rob_recover(int recover_index);
/* This function is called once per cycle and is used to step the BUSY timers
* to each FU in the FU resouce pool. As long as a FU's busy count is greater
* than zero, it cannot be issued an operation. */
void
mase_release_fu(void);
/* Process all of the instructions that have completed. The output
* dependency chains of the completing instructions are walked to determine
* if any dependent instruction now has all of its register operands.
* If so, the ready instruction is inserted into the ready queue. */
void
mase_writeback(void);