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
|
// See LICENSE for license details.
// This little program finds occurrences of strings like
// DASM(ffabc013)
// in its input, then replaces them with the disassembly
// enclosed hexadecimal number, interpreted as a RISC-V
// instruction.
#include "disasm.h"
#include "extension.h"
#include <iostream>
#include <string>
#include <cstdint>
#include <fesvr/option_parser.h>
using namespace std;
int main(int argc, char** argv)
{
string s;
const char* isa = DEFAULT_ISA;
std::function<extension_t*()> extension;
option_parser_t parser;
parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
parser.option(0, "isa", 1, [&](const char* s){isa = s;});
parser.parse(argv);
processor_t p(isa, 0, 0);
if (extension)
p.register_extension(extension());
while (getline(cin, s))
{
for (size_t start = 0; (start = s.find("DASM(", start)) != string::npos; )
{
size_t end = s.find(')', start);
if (end == string::npos)
break;
char* endp;
size_t numstart = start + strlen("DASM(");
int64_t bits = strtoull(&s[numstart], &endp, 16);
size_t nbits = 4 * (endp - &s[numstart]);
if (nbits < 64)
bits = bits << (64 - nbits) >> (64 - nbits);
string dis = p.get_disassembler()->disassemble(bits);
s = s.substr(0, start) + dis + s.substr(end+1);
start += dis.length();
}
cout << s << '\n';
}
return 0;
}
|