diff --git a/src/frontend/A32/decoder/asimd.inc b/src/frontend/A32/decoder/asimd.inc index fc644167..64ab59f9 100644 --- a/src/frontend/A32/decoder/asimd.inc +++ b/src/frontend/A32/decoder/asimd.inc @@ -16,7 +16,7 @@ INST(asimd_VQSUB, "VQSUB", "1111001U0Dzznnnndddd001 //INST(asimd_VCGE_reg, "VCGE (register)", "1111001U0-CC--------0011---1----") // ASIMD INST(asimd_VSHL_reg, "VSHL (register)", "1111001U0Dzznnnndddd0100NQM0mmmm") // ASIMD INST(asimd_VQSHL_reg, "VQSHL (register)", "1111001U0Dzznnnndddd0100NQM1mmmm") // ASIMD -//INST(asimd_VRSHL, "VRSHL", "1111001U0-CC--------0101---0----") // ASIMD +INST(asimd_VRSHL, "VRSHL", "1111001U0Dzznnnndddd0101NQM0mmmm") // ASIMD //INST(asimd_VQRSHL, "VQRSHL", "1111001U0-CC--------0101---1----") // ASIMD //INST(asimd_VMAX, "VMAX/VMIN", "1111001U0-CC--------0110---B----") // ASIMD //INST(asimd_VABD, "VABD/VABDL", "1111001U0-CC--------0111---0----") // ASIMD diff --git a/src/frontend/A32/translate/impl/asimd_three_same.cpp b/src/frontend/A32/translate/impl/asimd_three_same.cpp index d2b3ffae..5ae010c0 100644 --- a/src/frontend/A32/translate/impl/asimd_three_same.cpp +++ b/src/frontend/A32/translate/impl/asimd_three_same.cpp @@ -268,6 +268,25 @@ bool ArmTranslatorVisitor::asimd_VQSHL_reg(bool U, bool D, size_t sz, size_t Vn, return true; } +bool ArmTranslatorVisitor::asimd_VRSHL(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) { + if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vn) || Common::Bit<0>(Vm))) { + return UndefinedInstruction(); + } + + const size_t esize = 8U << sz; + const auto d = ToVector(Q, Vd, D); + const auto m = ToVector(Q, Vm, M); + const auto n = ToVector(Q, Vn, N); + + const auto reg_m = ir.GetVector(m); + const auto reg_n = ir.GetVector(n); + const auto result = U ? ir.VectorRoundingShiftLeftUnsigned(esize, reg_m, reg_n) + : ir.VectorRoundingShiftLeftSigned(esize, reg_m, reg_n); + + ir.SetVector(d, result); + return true; +} + bool ArmTranslatorVisitor::asimd_VTST(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) { if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vn) || Common::Bit<0>(Vm))) { return UndefinedInstruction(); diff --git a/src/frontend/A32/translate/impl/translate_arm.h b/src/frontend/A32/translate/impl/translate_arm.h index 27e4ffe8..a1f6eadc 100644 --- a/src/frontend/A32/translate/impl/translate_arm.h +++ b/src/frontend/A32/translate/impl/translate_arm.h @@ -459,6 +459,7 @@ struct ArmTranslatorVisitor final { bool asimd_VSUB_int(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm); bool asimd_VSHL_reg(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm); bool asimd_VQSHL_reg(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm); + bool asimd_VRSHL(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm); bool asimd_VTST(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm); // Two registers and a shift amount