You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.4 KiB
53 lines
1.4 KiB
// SPDX-FileCopyrightText: Copyright 2025 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 0x{:016x}", insn);
|
|
return Opcode::NOP;
|
|
}
|
|
|
|
} // namespace Shader::Maxwell
|