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- /* This file is part of the dynarmic project.
- * Copyright (c) 2018 MerryMage
- * SPDX-License-Identifier: 0BSD
- */
- #include "./fuzz_util.h"
- #include <cstring>
- #include <fmt/format.h>
- #include <fmt/ostream.h>
- #include <mcl/assert.hpp>
- #include "./rand_int.h"
- #include "dynarmic/common/fp/fpcr.h"
- #include "dynarmic/common/fp/rounding_mode.h"
- using namespace Dynarmic;
- std::ostream& operator<<(std::ostream& o, Vector vec) {
- return o << fmt::format("{:016x}'{:016x}", vec[1], vec[0]);
- }
- Vector RandomVector() {
- return {RandInt<u64>(0, ~u64(0)), RandInt<u64>(0, ~u64(0))};
- }
- u32 RandomFpcr() {
- FP::FPCR fpcr;
- fpcr.AHP(RandInt(0, 1) == 0);
- fpcr.DN(RandInt(0, 1) == 0);
- fpcr.FZ(RandInt(0, 1) == 0);
- fpcr.RMode(static_cast<FP::RoundingMode>(RandInt(0, 3)));
- fpcr.FZ16(RandInt(0, 1) == 0);
- return fpcr.Value();
- }
- InstructionGenerator::InstructionGenerator(const char* format) {
- const size_t format_len = std::strlen(format);
- ASSERT(format_len == 16 || format_len == 32);
- if (format_len == 16) {
- // Begin with 16 zeros
- mask |= 0xFFFF0000;
- }
- for (size_t i = 0; i < format_len; i++) {
- const u32 bit = 1u << (format_len - i - 1);
- switch (format[i]) {
- case '0':
- mask |= bit;
- break;
- case '1':
- bits |= bit;
- mask |= bit;
- break;
- default:
- // Do nothing
- break;
- }
- }
- }
- u32 InstructionGenerator::Generate() const {
- const u32 random = RandInt<u32>(0, 0xFFFFFFFF);
- return bits | (random & ~mask);
- }
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