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[dynarmic] add back encoding names (for print_info)

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Signed-off-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2025-09-06 21:40:13 +00:00 • committed by crueter
parent 896d3ac794
commit cf46cd9d44
9 changed files with 122 additions and 68 deletions
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20
src/dynarmic/src/dynarmic/frontend/A32/decoder/arm.h
View file

@ -30,13 +30,13 @@ template<typename Visitor>
using ArmDecodeTable = std::array<std::vector<ArmMatcher<Visitor>>, 0x1000>;
namespace detail {
inline size_t ToFastLookupIndexArm(u32 instruction) {
inline size_t ToFastLookupIndexArm(u32 instruction) noexcept {
return ((instruction >> 4) & 0x00F) | ((instruction >> 16) & 0xFF0);
}
} // namespace detail
template<typename V>
constexpr ArmDecodeTable<V> GetArmDecodeTable() {
constexpr ArmDecodeTable<V> GetArmDecodeTable() noexcept {
std::vector<ArmMatcher<V>> list = {
#define INST(fn, name, bitstring) DYNARMIC_DECODER_GET_MATCHER(ArmMatcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)),
#include "./arm.inc"
@ -62,15 +62,27 @@ constexpr ArmDecodeTable<V> GetArmDecodeTable() {
}
template<typename V>
std::optional<std::reference_wrapper<const ArmMatcher<V>>> DecodeArm(u32 instruction) {
std::optional<std::reference_wrapper<const ArmMatcher<V>>> DecodeArm(u32 instruction) noexcept {
alignas(64) static const auto table = GetArmDecodeTable<V>();
const auto matches_instruction = [instruction](const auto& matcher) {
return matcher.Matches(instruction);
};
const auto& subtable = table[detail::ToFastLookupIndexArm(instruction)];
auto iter = std::find_if(subtable.begin(), subtable.end(), matches_instruction);
return iter != subtable.end() ? std::optional<std::reference_wrapper<const ArmMatcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetNameARM(u32 inst) noexcept {
std::vector<std::pair<std::string_view, ArmMatcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(ArmMatcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./arm.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A32

26
src/dynarmic/src/dynarmic/frontend/A32/decoder/asimd.h
View file

@ -26,7 +26,7 @@ template<typename Visitor>
using ASIMDMatcher = Decoder::Matcher<Visitor, u32>;
template<typename V>
std::vector<ASIMDMatcher<V>> GetASIMDDecodeTable() {
std::vector<ASIMDMatcher<V>> GetASIMDDecodeTable() noexcept {
std::vector<std::pair<const char*, ASIMDMatcher<V>>> table = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(ASIMDMatcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./asimd.inc"
@ -68,13 +68,25 @@ std::vector<ASIMDMatcher<V>> GetASIMDDecodeTable() {
}
template<typename V>
std::optional<std::reference_wrapper<const ASIMDMatcher<V>>> DecodeASIMD(u32 instruction) {
static const auto table = GetASIMDDecodeTable<V>();
const auto matches_instruction = [instruction](const auto& matcher) { return matcher.Matches(instruction); };
auto iter = std::find_if(table.begin(), table.end(), matches_instruction);
std::optional<std::reference_wrapper<const ASIMDMatcher<V>>> DecodeASIMD(u32 instruction) noexcept {
alignas(64) static const auto table = GetASIMDDecodeTable<V>();
auto iter = std::find_if(table.begin(), table.end(), [instruction](const auto& matcher) {
return matcher.Matches(instruction);
});
return iter != table.end() ? std::optional<std::reference_wrapper<const ASIMDMatcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetNameASIMD(u32 inst) noexcept {
std::vector<std::pair<std::string_view, ASIMDMatcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(ASIMDMatcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./asimd.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A32

24
src/dynarmic/src/dynarmic/frontend/A32/decoder/thumb16.h
View file

@ -25,18 +25,28 @@ using Thumb16Matcher = Decoder::Matcher<Visitor, u16>;
template<typename V>
std::optional<std::reference_wrapper<const Thumb16Matcher<V>>> DecodeThumb16(u16 instruction) {
static const std::vector<Thumb16Matcher<V>> table = {
alignas(64) static const std::vector<Thumb16Matcher<V>> table = {
#define INST(fn, name, bitstring) DYNARMIC_DECODER_GET_MATCHER(Thumb16Matcher, fn, name, Decoder::detail::StringToArray<16>(bitstring)),
#include "./thumb16.inc"
#undef INST
};
const auto matches_instruction = [instruction](const auto& matcher) { return matcher.Matches(instruction); };
auto iter = std::find_if(table.begin(), table.end(), matches_instruction);
auto iter = std::find_if(table.begin(), table.end(), [instruction](const auto& matcher) {
return matcher.Matches(instruction);
});
return iter != table.end() ? std::optional<std::reference_wrapper<const Thumb16Matcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetNameThumb16(u32 inst) noexcept {
std::vector<std::pair<std::string_view, Thumb16Matcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(Thumb16Matcher, fn, name, Decoder::detail::StringToArray<16>(bitstring)) },
#include "./thumb16.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A32

24
src/dynarmic/src/dynarmic/frontend/A32/decoder/thumb32.h
View file

@ -24,18 +24,28 @@ using Thumb32Matcher = Decoder::Matcher<Visitor, u32>;
template<typename V>
std::optional<std::reference_wrapper<const Thumb32Matcher<V>>> DecodeThumb32(u32 instruction) {
static const std::vector<Thumb32Matcher<V>> table = {
alignas(64) static const std::vector<Thumb32Matcher<V>> table = {
#define INST(fn, name, bitstring) DYNARMIC_DECODER_GET_MATCHER(Thumb32Matcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)),
#include "./thumb32.inc"
#undef INST
};
const auto matches_instruction = [instruction](const auto& matcher) { return matcher.Matches(instruction); };
auto iter = std::find_if(table.begin(), table.end(), matches_instruction);
auto iter = std::find_if(table.begin(), table.end(), [instruction](const auto& matcher) {
return matcher.Matches(instruction);
});
return iter != table.end() ? std::optional<std::reference_wrapper<const Thumb32Matcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetNameThumb32(u32 inst) noexcept {
std::vector<std::pair<std::string_view, Thumb32Matcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(Thumb32Matcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./thumb32.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A32

24
src/dynarmic/src/dynarmic/frontend/A32/decoder/vfp.h
View file

@ -26,8 +26,7 @@ using VFPMatcher = Decoder::Matcher<Visitor, u32>;
template<typename V>
std::optional<std::reference_wrapper<const VFPMatcher<V>>> DecodeVFP(u32 instruction) {
using Table = std::vector<VFPMatcher<V>>;
static const struct Tables {
alignas(64) static const struct Tables {
Table unconditional;
Table conditional;
} tables = []() {
@ -44,14 +43,25 @@ std::optional<std::reference_wrapper<const VFPMatcher<V>>> DecodeVFP(u32 instruc
Table{it, list.end()},
};
}();
const bool is_unconditional = (instruction & 0xF0000000) == 0xF0000000;
const Table& table = is_unconditional ? tables.unconditional : tables.conditional;
const auto matches_instruction = [instruction](const auto& matcher) { return matcher.Matches(instruction); };
auto iter = std::find_if(table.begin(), table.end(), matches_instruction);
auto iter = std::find_if(table.begin(), table.end(), [instruction](const auto& matcher) {
return matcher.Matches(instruction);
});
return iter != table.end() ? std::optional<std::reference_wrapper<const VFPMatcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetNameVFP(u32 inst) noexcept {
std::vector<std::pair<std::string_view, VFPMatcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(VFPMatcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./vfp.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A32

2
src/dynarmic/src/dynarmic/frontend/A32/translate/translate_thumb.cpp
View file

@ -97,7 +97,7 @@ u32 ConvertASIMDInstruction(u32 thumb_instruction) {
return 0xF7F0A000; // UDF
}
bool MaybeVFPOrASIMDInstruction(u32 thumb_instruction) {
inline bool MaybeVFPOrASIMDInstruction(u32 thumb_instruction) noexcept {
return (thumb_instruction & 0xEC000000) == 0xEC000000 || (thumb_instruction & 0xFF100000) == 0xF9000000;
}

20
src/dynarmic/src/dynarmic/frontend/A64/decoder/a64.h
View file

@ -71,12 +71,24 @@ constexpr DecodeTable<V> GetDecodeTable() {
template<typename V>
std::optional<std::reference_wrapper<const Matcher<V>>> Decode(u32 instruction) {
alignas(64) static const auto table = GetDecodeTable<V>();
const auto matches_instruction = [instruction](const auto& matcher) {
return matcher.Matches(instruction);
};
const auto& subtable = table[detail::ToFastLookupIndex(instruction)];
auto iter = std::find_if(subtable.begin(), subtable.end(), matches_instruction);
auto iter = std::find_if(subtable.begin(), subtable.end(), [instruction](const auto& matcher) {
return matcher.Matches(instruction);
});
return iter != subtable.end() ? std::optional<std::reference_wrapper<const Matcher<V>>>(*iter) : std::nullopt;
}
template<typename V>
std::optional<std::string_view> GetName(u32 inst) noexcept {
std::vector<std::pair<std::string_view, Matcher<V>>> list = {
#define INST(fn, name, bitstring) { name, DYNARMIC_DECODER_GET_MATCHER(Matcher, fn, name, Decoder::detail::StringToArray<32>(bitstring)) },
#include "./a64.inc"
#undef INST
};
auto const iter = std::find_if(list.cbegin(), list.cend(), [inst](auto const& m) {
return m.second.Matches(inst);
});
return iter != list.cend() ? std::optional{iter->first} : std::nullopt;
}
} // namespace Dynarmic::A64

28
src/dynarmic/tests/decoder_tests.cpp
View file

@ -20,7 +20,6 @@
using namespace Dynarmic;
/*
TEST_CASE("ASIMD Decoder: Ensure table order correctness", "[decode][a32][.]") {
const auto table = A32::GetASIMDDecodeTable<A32::TranslatorVisitor>();
@ -37,22 +36,12 @@ TEST_CASE("ASIMD Decoder: Ensure table order correctness", "[decode][a32][.]") {
const auto is_decode_error = [&get_ir](const A32::ASIMDMatcher<A32::TranslatorVisitor>& matcher, u32 instruction) {
const auto block = get_ir(matcher, instruction);
for (const auto& ir_inst : block) {
if (ir_inst.GetOpcode() == IR::Opcode::A32ExceptionRaised) {
if (static_cast<A32::Exception>(ir_inst.GetArg(1).GetU64()) == A32::Exception::DecodeError) {
return true;
}
}
}
return false;
return std::find_if(block.cbegin(), block.cend(), [](auto const& e) {
return e.GetOpcode() == IR::Opcode::A32ExceptionRaised && A32::Exception(e.GetArg(1).GetU64()) == A32::Exception::DecodeError;
}) != block.cend();
};
for (auto iter = table.cbegin(); iter != table.cend(); ++iter) {
if (std::strncmp(iter->GetName(), "UNALLOCATED", 11) == 0) {
continue;
}
const u32 expect = iter->GetExpected();
const u32 mask = iter->GetMask();
u32 x = 0;
@ -60,15 +49,17 @@ TEST_CASE("ASIMD Decoder: Ensure table order correctness", "[decode][a32][.]") {
const u32 instruction = expect | x;
const bool iserr = is_decode_error(*iter, instruction);
const auto alternative = std::find_if(table.cbegin(), iter, [instruction](const auto& m) { return m.Matches(instruction); });
const auto alternative = std::find_if(table.cbegin(), iter, [instruction](const auto& m) {
return m.Matches(instruction);
});
const bool altiserr = is_decode_error(*alternative, instruction);
INFO("Instruction: " << std::hex << std::setfill('0') << std::setw(8) << instruction);
INFO("Expect: " << std::hex << std::setfill('0') << std::setw(8) << expect);
INFO("Fill: " << std::hex << std::setfill('0') << std::setw(8) << x);
INFO("Name: " << iter->GetName());
INFO("Name: " << *A32::GetNameASIMD<A32::TranslatorVisitor>(instruction));
INFO("iserr: " << iserr);
INFO("alternative: " << alternative->GetName());
//INFO("alternative: " << alternative->GetName());
INFO("altiserr: " << altiserr);
REQUIRE(((!iserr && alternative == iter) || (iserr && alternative != iter && !altiserr)));
@ -76,5 +67,4 @@ TEST_CASE("ASIMD Decoder: Ensure table order correctness", "[decode][a32][.]") {
x = ((x | mask) + 1) & ~mask;
} while (x != 0);
}
}
*/
}

22
src/dynarmic/tests/print_info.cpp
View file

@ -39,21 +39,19 @@
using namespace Dynarmic;
const char* GetNameOfA32Instruction(u32 instruction) {
/*if (auto vfp_decoder = A32::DecodeVFP<A32::TranslatorVisitor>(instruction)) {
return vfp_decoder->get().GetName();
} else if (auto asimd_decoder = A32::DecodeASIMD<A32::TranslatorVisitor>(instruction)) {
return asimd_decoder->get().GetName();
} else if (auto decoder = A32::DecodeArm<A32::TranslatorVisitor>(instruction)) {
return decoder->get().GetName();
}*/
std::string_view GetNameOfA32Instruction(u32 instruction) {
if (auto const vfp_decoder = A32::DecodeVFP<A32::TranslatorVisitor>(instruction))
return *A32::GetNameVFP<A32::TranslatorVisitor>(instruction);
else if (auto const asimd_decoder = A32::DecodeASIMD<A32::TranslatorVisitor>(instruction))
return *A32::GetNameASIMD<A32::TranslatorVisitor>(instruction);
else if (auto const decoder = A32::DecodeArm<A32::TranslatorVisitor>(instruction))
return *A32::GetNameARM<A32::TranslatorVisitor>(instruction);
return "<null>";
}
const char* GetNameOfA64Instruction(u32 instruction) {
/*if (auto decoder = A64::Decode<A64::TranslatorVisitor>(instruction)) {
return decoder->get().GetName();
}*/
std::string_view GetNameOfA64Instruction(u32 instruction) {
if (auto const decoder = A64::Decode<A64::TranslatorVisitor>(instruction))
return *A64::GetName<A64::TranslatorVisitor>(instruction);
return "<null>";
}