-
Notifications
You must be signed in to change notification settings - Fork 2
/
BankState.cpp
110 lines (103 loc) · 3.29 KB
/
BankState.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
/*********************************************************************************
* Copyright (c) 2010-2011, Elliott Cooper-Balis
* Paul Rosenfeld
* Bruce Jacob
* University of Maryland
* dramninjas [at] gmail [dot] com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*********************************************************************************/
//Bank State source
#include "BankState.h"
using namespace std;
namespace BOBSim
{
BankState::BankState():
currentBankState(IDLE),
openRowAddress(0),
nextActivate(0),
nextRead(0),
nextWrite(0),
nextStrobeMin(0),
nextStrobeMax(0),
nextRefresh(0),
stateChangeCountdown(0)
{}
void BankState::UpdateStateChange()
{
if(stateChangeCountdown>0)
{
stateChangeCountdown--;
if(stateChangeCountdown==0)
{
switch(lastCommand)
{
case REFRESH:
currentBankState = IDLE;
break;
case WRITE_P:
case READ_P:
currentBankState = PRECHARGING;
stateChangeCountdown = tRP;
lastCommand = PRECHARGE;
break;
case PRECHARGE:
currentBankState = IDLE;
break;
default:
ERROR("== WTF STATE? : "<<lastCommand);
exit(0);
}
}
}
}
ostream &operator<<(ostream &out, const BankState &bs)
{
//out << dec <<" == Bank State " <<endl;
switch(bs.currentBankState)
{
case IDLE:
out<<" State : Idle" <<endl;
break;
case ROW_ACTIVE:
out<<" State : Active" <<endl;
break;
case PRECHARGING:
out<<" State : Precharging" <<endl;
break;
case REFRESHING:
out<<" State : Refreshing" <<endl;
break;
}
/*
out<<" StateChange : " << bs.stateChangeCountdown<<endl;
out<<" OpenRowAddress : " << bs.openRowAddress <<endl;
out<<" nextRead : " << bs.nextRead <<endl;
out<<" nextWrite : " << bs.nextWrite <<endl;
out<<" nextActivate : " << bs.nextActivate <<endl;
out<<" nextStrobeMin : " << bs.nextStrobeMin << endl;
out<<" nextStrobeMax : " << bs.nextStrobeMax << endl;
*/
return out;
}
}