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
|
// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#ifndef TRACER_H
#define TRACER_H
#include <QObject>
#include "qtmipsmachine.h"
class Tracer : public QObject {
Q_OBJECT
public:
Tracer(machine::QtMipsMachine *machine);
// Trace instructions in different stages/sections
void fetch();
void decode();
void execute();
void memory();
void writeback();
// Trace registers
void reg_pc();
void reg_gp(std::uint8_t i);
void reg_lo();
void reg_hi();
private slots:
void instruction_fetch(const machine::Instruction &inst, uint32_t inst_addr, machine::ExceptionCause excause, bool valid);
void instruction_decode(const machine::Instruction &inst, uint32_t inst_addr, machine::ExceptionCause excause, bool valid);
void instruction_execute(const machine::Instruction &inst, uint32_t inst_addr, machine::ExceptionCause excause, bool valid);
void instruction_memory(const machine::Instruction &inst, uint32_t inst_addr, machine::ExceptionCause excause, bool valid);
void instruction_writeback(const machine::Instruction &inst, uint32_t inst_addr, machine::ExceptionCause excause, bool valid);
void regs_pc_update(std::uint32_t val);
void regs_gp_update(std::uint8_t i, std::uint32_t val);
void regs_hi_lo_update(bool hi, std::uint32_t val);
private:
machine::QtMipsMachine *machine;
bool gp_regs[32];
bool r_hi, r_lo;
bool con_fetch, con_decode, con_execute, con_memory, con_writeback,
con_regs_pc, con_regs_gp, con_regs_hi_lo;
};
#endif // TRACER_H
|
