diff --git a/src/frontend/A64/decoder/a64.inc b/src/frontend/A64/decoder/a64.inc index 523c20a3..3fd8eff2 100644 --- a/src/frontend/A64/decoder/a64.inc +++ b/src/frontend/A64/decoder/a64.inc @@ -384,7 +384,7 @@ INST(DUP_elt_1, "DUP (element)", "01011 INST(FMULX_vec_2, "FMULX", "010111100z1mmmmm110111nnnnnddddd") //INST(FCMEQ_reg_1, "FCMEQ (register)", "01011110010mmmmm001001nnnnnddddd") INST(FCMEQ_reg_2, "FCMEQ (register)", "010111100z1mmmmm111001nnnnnddddd") -//INST(FRECPS_1, "FRECPS", "01011110010mmmmm001111nnnnnddddd") +INST(FRECPS_1, "FRECPS", "01011110010mmmmm001111nnnnnddddd") INST(FRECPS_2, "FRECPS", "010111100z1mmmmm111111nnnnnddddd") //INST(FRSQRTS_1, "FRSQRTS", "01011110110mmmmm001111nnnnnddddd") INST(FRSQRTS_2, "FRSQRTS", "010111101z1mmmmm111111nnnnnddddd") diff --git a/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp b/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp index 320ea986..f4eaa6e1 100644 --- a/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp +++ b/src/frontend/A64/translate/impl/simd_scalar_three_same.cpp @@ -294,6 +294,17 @@ bool TranslatorVisitor::FMULX_vec_2(bool sz, Vec Vm, Vec Vn, Vec Vd) { return true; } +bool TranslatorVisitor::FRECPS_1(Vec Vm, Vec Vn, Vec Vd) { + const size_t esize = 16; + + const IR::U16 operand1 = V_scalar(esize, Vn); + const IR::U16 operand2 = V_scalar(esize, Vm); + const IR::U16 result = ir.FPRecipStepFused(operand1, operand2); + + V_scalar(esize, Vd, result); + return true; +} + bool TranslatorVisitor::FRECPS_2(bool sz, Vec Vm, Vec Vn, Vec Vd) { const size_t esize = sz ? 64 : 32;