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A64: Implement STLLRB, STLLRH, STLLR, LDLARB, LDLARH, LDLAR

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This commit is contained in:
MerryMage 2018-02-05 15:41:41 +00:00
parent 81713c2b77
commit cc9efd13c9
3 changed files with 30 additions and 3 deletions
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4
src/frontend/A64/decoder/a64.inc
View file

@ -132,9 +132,9 @@ INST(LDx_mult_2, "LDx (multiple structures)", "0Q001
//INST(LDAXRB, "LDAXRB", "zz00100001011111111111nnnnnttttt")
//INST(LDXP, "LDXP", "1z001000011111110uuuuunnnnnttttt")
//INST(LDAXP, "LDAXP", "1z001000011111111uuuuunnnnnttttt")
//INST(STLLR, "STLLRB, STLLRH, STLLR", "zz00100010011111011111nnnnnttttt")
INST(STLLR, "STLLRB, STLLRH, STLLR", "zz00100010011111011111nnnnnttttt")
INST(STLR, "STLRB, STLRH, STLR", "zz00100010011111111111nnnnnttttt")
//INST(LDLAR, "LDLARB, LDLARH, LDLAR", "zz00100011011111011111nnnnnttttt")
INST(LDLAR, "LDLARB, LDLARH, LDLAR", "zz00100011011111011111nnnnnttttt")
INST(LDAR, "LDARB, LDARH, LDAR", "zz00100011011111111111nnnnnttttt")
//INST(CASP, "CASP, CASPA, CASPAL, CASPL", "0z0010000L1sssssp11111nnnnnttttt") // ARMv8.1
//INST(CASB, "CASB, CASAB, CASALB, CASLB", "000010001L1sssssp11111nnnnnttttt") // ARMv8.1

14
src/frontend/A64/translate/impl/load_store_exclusive.cpp
View file

@ -47,6 +47,13 @@ static bool OrderedSharedDecodeAndOperation(TranslatorVisitor& tv, size_t size,
return true;
}
bool TranslatorVisitor::STLLR(Imm<2> sz, Reg Rn, Reg Rt) {
const size_t size = sz.ZeroExtend<size_t>();
const bool L = 0;
const bool o0 = 0;
return OrderedSharedDecodeAndOperation(*this, size, L, o0, Rn, Rt);
}
bool TranslatorVisitor::STLR(Imm<2> sz, Reg Rn, Reg Rt) {
const size_t size = sz.ZeroExtend<size_t>();
const bool L = 0;
@ -54,6 +61,13 @@ bool TranslatorVisitor::STLR(Imm<2> sz, Reg Rn, Reg Rt) {
return OrderedSharedDecodeAndOperation(*this, size, L, o0, Rn, Rt);
}
bool TranslatorVisitor::LDLAR(Imm<2> sz, Reg Rn, Reg Rt) {
const size_t size = sz.ZeroExtend<size_t>();
const bool L = 1;
const bool o0 = 0;
return OrderedSharedDecodeAndOperation(*this, size, L, o0, Rn, Rt);
}
bool TranslatorVisitor::LDAR(Imm<2> sz, Reg Rn, Reg Rt) {
const size_t size = sz.ZeroExtend<size_t>();
const bool L = 1;

15
tests/A64/fuzz_with_unicorn.cpp
View file

@ -4,7 +4,10 @@
* General Public License version 2 or any later version.
*/
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include <catch.hpp>
@ -41,8 +44,18 @@ static u32 GenRandomInst(u64 pc, bool is_last_inst) {
std::vector<InstructionGenerator> result;
// List of instructions not to test
const std::vector<std::string> do_not_test {
// Unallocated encodings are invalid.
"UnallocatedEncoding",
// Unimplemented in QEMU
"STLLR",
// Unimplemented in QEMU
"LDLAR",
};
for (const auto& [fn, bitstring] : list) {
if (std::strcmp(fn, "UnallocatedEncoding") == 0) {
if (std::find(do_not_test.begin(), do_not_test.end(), fn) != do_not_test.end()) {
InstructionGenerator::AddInvalidInstruction(bitstring);
continue;
}