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[dynarmic] RBIT involution testcase

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lizzie 2025-07-27 19:09:17 +01:00 • committed by crueter
parent c21a4f8041
commit c896897d40
2 changed files with 18 additions and 3 deletions
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2
src/dynarmic/src/dynarmic/common/crypto/crc32.cpp
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@ -152,11 +152,9 @@ constexpr CRC32Table iso_table{
static u32 ComputeCRC32(const CRC32Table& table, u32 crc, const u64 value, int length) { static u32 ComputeCRC32(const CRC32Table& table, u32 crc, const u64 value, int length) {
const auto* data = reinterpret_cast<const unsigned char*>(&value); const auto* data = reinterpret_cast<const unsigned char*>(&value);
while (length-- > 0) { while (length-- > 0) {
crc = (crc >> 8) ^ table[(crc ^ (*data++)) & 0xFF]; crc = (crc >> 8) ^ table[(crc ^ (*data++)) & 0xFF];
} }
return crc; return crc;
} }

19
src/dynarmic/tests/A64/a64.cpp
View file

@ -79,7 +79,6 @@ TEST_CASE("A64: CLZ", "[a64]") {
jit.SetVector(0, {0xeff0fafbfcfdfeff, 0xff7f3f1f0f070301}); jit.SetVector(0, {0xeff0fafbfcfdfeff, 0xff7f3f1f0f070301});
jit.SetVector(1, {0xfffcfffdfffeffff, 0x000F000700030001}); jit.SetVector(1, {0xfffcfffdfffeffff, 0x000F000700030001});
jit.SetVector(2, {0xfffffffdfffffffe, 0x0000000300000001}); jit.SetVector(2, {0xfffffffdfffffffe, 0x0000000300000001});
env.ticks_left = env.code_mem.size(); env.ticks_left = env.code_mem.size();
jit.Run(); jit.Run();
@ -2328,3 +2327,21 @@ TEST_CASE("A64: SQABS", "[a64]") {
CHECK(jit.GetVector(13) == Vector{0x763E4B7043BC0AC5, 0x5FDD5D671D399E2}); CHECK(jit.GetVector(13) == Vector{0x763E4B7043BC0AC5, 0x5FDD5D671D399E2});
CHECK(FP::FPSR{(uint32_t)jit.GetRegister(13)}.QC() == 0); CHECK(FP::FPSR{(uint32_t)jit.GetRegister(13)}.QC() == 0);
} }
TEST_CASE("A64: RBIT{16b}", "[a64]") {
A64TestEnv env;
A64::UserConfig conf{};
conf.callbacks = &env;
A64::Jit jit{conf};
env.code_mem.emplace_back(0x6e605841); // rbit v1.16b, v2.16b
env.code_mem.emplace_back(0x6e605822); // rbit v2.16b, v1.16b
env.code_mem.emplace_back(0x14000000); // b .
jit.SetVector(2, { 0xcafedead, 0xbabebeef });
jit.SetPC(0); // at _start
env.ticks_left = 4;
jit.Run();
REQUIRE(jit.GetVector(1)[0] == 0x537f7bb5);
REQUIRE(jit.GetVector(1)[1] == 0x5d7d7df7);
REQUIRE(jit.GetVector(2)[0] == 0xcafedead);
REQUIRE(jit.GetVector(2)[1] == 0xbabebeef);
}