blob: 251b370efa70326cf1133985ae37aa763caf83cc (
plain) (
blame)
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
|
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <array>
#include <bit>
#include <memory>
#include <ranges>
#include <string_view>
#include "common/assert.h"
#include "common/common_types.h"
#include "shader_recompiler/exception.h"
#include "shader_recompiler/frontend/maxwell/decode.h"
#include "shader_recompiler/frontend/maxwell/opcodes.h"
namespace Shader::Maxwell {
consteval std::pair<u64, u64> MaskValueFromEncoding(const char data[20]) noexcept {
u64 mask = 0, value = 0, bit = u64(1) << 63;
for (int i = 0; i < 20; ++i)
switch (data[i]) {
case '0':
mask |= bit;
bit >>= 1;
break;
case '1':
mask |= bit;
value |= bit;
bit >>= 1;
break;
case '-':
bit >>= 1;
break;
default:
break;
}
return { mask, value };
}
Opcode Decode(u64 insn) {
#define INST(name, cute, encode) \
if (auto const p = MaskValueFromEncoding(encode); (insn & p.first) == p.second) \
return Opcode::name;
#include "maxwell.inc"
#undef INST
ASSERT_MSG(false, "Invalid insn {:#016x}", insn);
return Opcode::NOP;
}
} // namespace Shader::Maxwell
|
