blob: b5aa6debb1da8c69676f7efcefca5f8dd091a4de (
plain)
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
|
// See LICENSE for license details.
#ifndef _RISCV_DISASM_H
#define _RISCV_DISASM_H
#include "decode.h"
#include <string>
#include <sstream>
#include <vector>
class arg_t
{
public:
virtual std::string to_string(insn_t val) const = 0;
virtual ~arg_t() {}
};
class disasm_insn_t
{
public:
disasm_insn_t(const char* name, uint32_t match, uint32_t mask,
const std::vector<const arg_t*>& args)
: match(match), mask(mask), args(args), name(name) {}
bool operator == (insn_t insn) const
{
return (insn.bits() & mask) == match;
}
std::string to_string(insn_t insn) const
{
std::stringstream s;
int len;
for (len = 0; name[len]; len++)
s << (name[len] == '_' ? '.' : name[len]);
if (args.size())
{
s << std::string(std::max(1, 8 - len), ' ');
for (size_t i = 0; i < args.size()-1; i++)
s << args[i]->to_string(insn) << ", ";
s << args[args.size()-1]->to_string(insn);
}
return s.str();
}
uint32_t get_match() const { return match; }
uint32_t get_mask() const { return mask; }
private:
uint32_t match;
uint32_t mask;
std::vector<const arg_t*> args;
const char* name;
};
class disassembler_t
{
public:
disassembler_t();
~disassembler_t();
std::string disassemble(insn_t insn);
void add_insn(disasm_insn_t* insn);
private:
static const int HASH_SIZE = 256;
std::vector<const disasm_insn_t*> chain[HASH_SIZE+1];
const disasm_insn_t* lookup(insn_t insn);
};
#endif
|