scoreboard.cc (2689:dbf969c18a65) scoreboard.cc (4642:d7b2de2d72f1)
1/*
2 * Copyright (c) 2005-2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Korey Sewell
29 * Kevin Lim
30 */
31
1/*
2 * Copyright (c) 2005-2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 15 unchanged lines hidden (view full) ---

24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Korey Sewell
29 * Kevin Lim
30 */
31
32#include "arch/isa_specific.hh"
32#include "cpu/o3/scoreboard.hh"
33
34Scoreboard::Scoreboard(unsigned activeThreads,
35 unsigned _numLogicalIntRegs,
36 unsigned _numPhysicalIntRegs,
37 unsigned _numLogicalFloatRegs,
38 unsigned _numPhysicalFloatRegs,
39 unsigned _numMiscRegs,

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74Scoreboard::name() const
75{
76 return "cpu.scoreboard";
77}
78
79bool
80Scoreboard::getReg(PhysRegIndex phys_reg)
81{
33#include "cpu/o3/scoreboard.hh"
34
35Scoreboard::Scoreboard(unsigned activeThreads,
36 unsigned _numLogicalIntRegs,
37 unsigned _numPhysicalIntRegs,
38 unsigned _numLogicalFloatRegs,
39 unsigned _numPhysicalFloatRegs,
40 unsigned _numMiscRegs,

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75Scoreboard::name() const
76{
77 return "cpu.scoreboard";
78}
79
80bool
81Scoreboard::getReg(PhysRegIndex phys_reg)
82{
83#if THE_ISA == ALPHA_ISA
82 // Always ready if int or fp zero reg.
83 if (phys_reg == zeroRegIdx ||
84 phys_reg == (zeroRegIdx + numPhysicalIntRegs)) {
85 return 1;
86 }
84 // Always ready if int or fp zero reg.
85 if (phys_reg == zeroRegIdx ||
86 phys_reg == (zeroRegIdx + numPhysicalIntRegs)) {
87 return 1;
88 }
89#else
90 // Always ready if int zero reg.
91 if (phys_reg == zeroRegIdx) {
92 return 1;
93 }
94#endif
87
88 return regScoreBoard[phys_reg];
89}
90
91void
92Scoreboard::setReg(PhysRegIndex phys_reg)
93{
94 DPRINTF(Scoreboard, "Setting reg %i as ready\n", phys_reg);
95
96 regScoreBoard[phys_reg] = 1;
97}
98
99void
100Scoreboard::unsetReg(PhysRegIndex ready_reg)
101{
95
96 return regScoreBoard[phys_reg];
97}
98
99void
100Scoreboard::setReg(PhysRegIndex phys_reg)
101{
102 DPRINTF(Scoreboard, "Setting reg %i as ready\n", phys_reg);
103
104 regScoreBoard[phys_reg] = 1;
105}
106
107void
108Scoreboard::unsetReg(PhysRegIndex ready_reg)
109{
110#if THE_ISA == ALPHA_ISA
102 if (ready_reg == zeroRegIdx ||
103 ready_reg == (zeroRegIdx + numPhysicalIntRegs)) {
104 // Don't do anything if int or fp zero reg.
105 return;
106 }
111 if (ready_reg == zeroRegIdx ||
112 ready_reg == (zeroRegIdx + numPhysicalIntRegs)) {
113 // Don't do anything if int or fp zero reg.
114 return;
115 }
116#else
117 if (ready_reg == zeroRegIdx) {
118 // Don't do anything if int zero reg.
119 return;
120 }
121#endif
107
108 regScoreBoard[ready_reg] = 0;
109}
122
123 regScoreBoard[ready_reg] = 0;
124}