f75acd6cfb
Gets rid of a bit of duplication while remaining compatible with the current interfaces in place.
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2016 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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#pragma once
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#include <vector>
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#include <boost/optional.hpp>
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#include "common/common_types.h"
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#include "frontend/decoder/decoder_detail.h"
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#include "frontend/decoder/matcher.h"
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namespace Dynarmic {
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namespace Arm {
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template <typename Visitor>
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using Thumb32Matcher = Matcher<Visitor, u32>;
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template<typename V>
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boost::optional<const Thumb32Matcher<V>&> DecodeThumb32(u32 instruction) {
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const static std::vector<Thumb32Matcher<V>> table = {
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#define INST(fn, name, bitstring) detail::detail<Thumb32Matcher<V>>::GetMatcher(fn, name, bitstring)
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// Branch instructions
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INST(&V::thumb32_BL_imm, "BL (imm)", "11110vvvvvvvvvvv11111vvvvvvvvvvv"), // v4T
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INST(&V::thumb32_BLX_imm, "BLX (imm)", "11110vvvvvvvvvvv11101vvvvvvvvvvv"), // v5T
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// Misc instructions
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INST(&V::thumb32_UDF, "UDF", "111101111111----1010------------"), // v6T2
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#undef INST
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};
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const auto matches_instruction = [instruction](const auto& matcher){ return matcher.Matches(instruction); };
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auto iter = std::find_if(table.begin(), table.end(), matches_instruction);
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return iter != table.end() ? boost::make_optional<const Thumb32Matcher<V>&>(*iter) : boost::none;
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}
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} // namespace Arm
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} // namespace Dynarmic
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