39 lines
949 B
C++
39 lines
949 B
C++
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/* This file is part of the dynarmic project.
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* Copyright (c) 2018 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#include "common/assert.h"
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#include "inst_gen.h"
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#include "rand_int.h"
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InstructionGenerator::InstructionGenerator(const char* format){
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ASSERT(std::strlen(format) == 32);
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for (int i = 0; i < 32; i++) {
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const u32 bit = 1u << (31 - i);
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switch (format[i]) {
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case '0':
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mask |= bit;
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break;
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case '1':
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bits |= bit;
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mask |= bit;
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break;
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default:
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// Do nothing
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break;
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}
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}
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}
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u32 InstructionGenerator::Generate() const {
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u32 inst;
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do {
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u32 random = RandInt<u32>(0, 0xFFFFFFFF);
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inst = bits | (random & ~mask);
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} while (IsInvalidInstruction(inst));
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return inst;
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}
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