diff --git a/src/frontend/A64/decoder/a64.inc b/src/frontend/A64/decoder/a64.inc index 6905164c..314d4b80 100644 --- a/src/frontend/A64/decoder/a64.inc +++ b/src/frontend/A64/decoder/a64.inc @@ -749,7 +749,7 @@ INST(ORN_asimd, "ORN (vector)", "0Q001 //INST(UABA, "UABA", "0Q101110zz1mmmmm011111nnnnnddddd") INST(SUB_2, "SUB (vector)", "0Q101110zz1mmmmm100001nnnnnddddd") INST(CMEQ_reg_2, "CMEQ (register)", "0Q101110zz1mmmmm100011nnnnnddddd") -//INST(MLS_vec, "MLS (vector)", "0Q101110zz1mmmmm100101nnnnnddddd") +INST(MLS_vec, "MLS (vector)", "0Q101110zz1mmmmm100101nnnnnddddd") //INST(PMUL, "PMUL", "0Q101110zz1mmmmm100111nnnnnddddd") //INST(UMAXP, "UMAXP", "0Q101110zz1mmmmm101001nnnnnddddd") //INST(UMINP, "UMINP", "0Q101110zz1mmmmm101011nnnnnddddd") diff --git a/src/frontend/A64/translate/impl/simd_three_same.cpp b/src/frontend/A64/translate/impl/simd_three_same.cpp index db052b6d..07137075 100644 --- a/src/frontend/A64/translate/impl/simd_three_same.cpp +++ b/src/frontend/A64/translate/impl/simd_three_same.cpp @@ -163,6 +163,22 @@ bool TranslatorVisitor::CMEQ_reg_2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) return true; } +bool TranslatorVisitor::MLS_vec(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) { + if (size == 0b11) return ReservedValue(); + const size_t esize = 8 << size.ZeroExtend(); + const size_t datasize = Q ? 128 : 64; + + const IR::U128 operand1 = V(datasize, Vn); + const IR::U128 operand2 = V(datasize, Vm); + const IR::U128 operand3 = V(datasize, Vd); + + const IR::U128 result = ir.VectorSub(esize, operand3, ir.VectorMultiply(esize, operand1, operand2)); + + V(datasize, Vd, result); + + return true; +} + bool TranslatorVisitor::EOR_asimd(bool Q, Vec Vm, Vec Vn, Vec Vd) { const size_t datasize = Q ? 128 : 64;