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A64: Add missing decoding for PRFM (unscaled offset)

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Lioncash 2018-05-08 08:14:08 -04:00 committed by MerryMage
parent f2a85d5601
commit 43e6e98c3b
3 changed files with 8 additions and 0 deletions
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1
src/frontend/A64/decoder/a64.inc
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@ -175,6 +175,7 @@ INST(STURx_LDURx, "STURx/LDURx", "zz111
INST(UnallocatedEncoding, "", "111110001-0---------00----------")
INST(UnallocatedEncoding, "", "10111000110---------00----------")
INST(PRFM_imm, "PRFM (immediate)", "1111100110iiiiiiiiiiiinnnnnttttt")
INST(PRFM_unscaled_imm, "PRFM (unscaled offset)", "11111000100iiiiiiiii00nnnnnttttt")
INST(STUR_fpsimd, "STUR (SIMD&FP)", "zz111100o00iiiiiiiii00nnnnnttttt")
INST(LDUR_fpsimd, "LDUR (SIMD&FP)", "zz111100o10iiiiiiiii00nnnnnttttt")

1
src/frontend/A64/translate/impl/impl.h
View file

@ -247,6 +247,7 @@ struct TranslatorVisitor final {
bool STRx_LDRx_imm_2(Imm<2> size, Imm<2> opc, Imm<12> imm12, Reg Rn, Reg Rt);
bool STURx_LDURx(Imm<2> size, Imm<2> opc, Imm<9> imm9, Reg Rn, Reg Rt);
bool PRFM_imm(Imm<12> imm12, Reg Rn, Reg Rt);
bool PRFM_unscaled_imm(Imm<9> imm9, Reg Rn, Reg Rt);
bool STR_imm_fpsimd_1(Imm<2> size, Imm<1> opc_1, Imm<9> imm9, bool not_postindex, Reg Rn, Vec Vt);
bool STR_imm_fpsimd_2(Imm<2> size, Imm<1> opc_1, Imm<12> imm12, Reg Rn, Vec Vt);
bool LDR_imm_fpsimd_1(Imm<2> size, Imm<1> opc_1, Imm<9> imm9, bool not_postindex, Reg Rn, Vec Vt);

6
src/frontend/A64/translate/impl/load_store_register_immediate.cpp
View file

@ -106,6 +106,12 @@ bool TranslatorVisitor::PRFM_imm([[maybe_unused]] Imm<12> imm12, [[maybe_unused]
return true;
}
bool TranslatorVisitor::PRFM_unscaled_imm([[maybe_unused]] Imm<9> imm9, [[maybe_unused]] Reg Rn, [[maybe_unused]] Reg Rt) {
// Currently a NOP (which is valid behavior, as indicated by
// the ARMv8 architecture reference manual)
return true;
}
static bool LoadStoreSIMD(TranslatorVisitor& tv, IREmitter& ir, bool wback, bool postindex, size_t scale, u64 offset, MemOp memop, Reg Rn, Vec Vt) {
const AccType acctype = AccType::VEC;
const size_t datasize = 8 << scale;