translate_arm/multiply: Invert conditionals where applicable
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1 changed files with 455 additions and 293 deletions
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@ -8,423 +8,585 @@
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namespace Dynarmic::A32 {
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// Multiply (Normal) instructions
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// MLA{S}<c> <Rd>, <Rn>, <Rm>, <Ra>
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bool ArmTranslatorVisitor::arm_MLA(Cond cond, bool S, Reg d, Reg a, Reg m, Reg n) {
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC)
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC) {
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto result = ir.Add(ir.Mul(ir.GetRegister(n), ir.GetRegister(m)), ir.GetRegister(a));
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ir.SetRegister(d, result);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(result));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto result = ir.Add(ir.Mul(ir.GetRegister(n), ir.GetRegister(m)), ir.GetRegister(a));
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ir.SetRegister(d, result);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(result));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// MUL{S}<c> <Rd>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_MUL(Cond cond, bool S, Reg d, Reg m, Reg n) {
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto result = ir.Mul(ir.GetRegister(n), ir.GetRegister(m));
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ir.SetRegister(d, result);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(result));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto result = ir.Mul(ir.GetRegister(n), ir.GetRegister(m));
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ir.SetRegister(d, result);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(result));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// Multiply (Long) instructions
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// SMLAL{S}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_SMLAL(Cond cond, bool S, Reg dHi, Reg dLo, Reg m, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
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auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
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auto product = ir.Mul(n64, m64);
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auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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auto result = ir.Add(product, addend);
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auto lo = ir.LeastSignificantWord(result);
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auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
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const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
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const auto product = ir.Mul(n64, m64);
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const auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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const auto result = ir.Add(product, addend);
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const auto lo = ir.LeastSignificantWord(result);
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const auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// SMULL{S}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_SMULL(Cond cond, bool S, Reg dHi, Reg dLo, Reg m, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
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auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
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auto result = ir.Mul(n64, m64);
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auto lo = ir.LeastSignificantWord(result);
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auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
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const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
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const auto result = ir.Mul(n64, m64);
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const auto lo = ir.LeastSignificantWord(result);
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const auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// UMAAL<c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_UMAAL(Cond cond, Reg dHi, Reg dLo, Reg m, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto lo64 = ir.ZeroExtendWordToLong(ir.GetRegister(dLo));
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auto hi64 = ir.ZeroExtendWordToLong(ir.GetRegister(dHi));
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auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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auto result = ir.Add(ir.Add(ir.Mul(n64, m64), hi64), lo64);
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ir.SetRegister(dLo, ir.LeastSignificantWord(result));
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ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto lo64 = ir.ZeroExtendWordToLong(ir.GetRegister(dLo));
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const auto hi64 = ir.ZeroExtendWordToLong(ir.GetRegister(dHi));
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const auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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const auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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const auto result = ir.Add(ir.Add(ir.Mul(n64, m64), hi64), lo64);
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ir.SetRegister(dLo, ir.LeastSignificantWord(result));
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ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
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return true;
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}
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// UMLAL{S}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_UMLAL(Cond cond, bool S, Reg dHi, Reg dLo, Reg m, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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auto result = ir.Add(ir.Mul(n64, m64), addend);
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auto lo = ir.LeastSignificantWord(result);
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auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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const auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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const auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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const auto result = ir.Add(ir.Mul(n64, m64), addend);
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const auto lo = ir.LeastSignificantWord(result);
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const auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// UMULL{S}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_UMULL(Cond cond, bool S, Reg dHi, Reg dLo, Reg m, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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auto result = ir.Mul(n64, m64);
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auto lo = ir.LeastSignificantWord(result);
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auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const auto n64 = ir.ZeroExtendWordToLong(ir.GetRegister(n));
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const auto m64 = ir.ZeroExtendWordToLong(ir.GetRegister(m));
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const auto result = ir.Mul(n64, m64);
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const auto lo = ir.LeastSignificantWord(result);
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const auto hi = ir.MostSignificantWord(result).result;
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ir.SetRegister(dLo, lo);
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ir.SetRegister(dHi, hi);
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if (S) {
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ir.SetNFlag(ir.MostSignificantBit(hi));
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ir.SetZFlag(ir.IsZero(result));
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}
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return true;
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}
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// Multiply (Halfword) instructions
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// SMLAL<x><y><c> <RdLo>, <RdHi>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_SMLALxy(Cond cond, Reg dHi, Reg dLo, Reg m, bool M, bool N, Reg n) {
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (dLo == dHi)
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
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const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
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const IR::U64 product = ir.SignExtendWordToLong(ir.Mul(n16, m16));
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auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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auto result = ir.Add(product, addend);
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ir.SetRegister(dLo, ir.LeastSignificantWord(result));
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ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
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}
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if (dLo == dHi) {
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return UnpredictableInstruction();
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
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const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
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const IR::U64 product = ir.SignExtendWordToLong(ir.Mul(n16, m16));
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const auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
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const auto result = ir.Add(product, addend);
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ir.SetRegister(dLo, ir.LeastSignificantWord(result));
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ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
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return true;
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}
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// SMLA<x><y><c> <Rd>, <Rn>, <Rm>, <Ra>
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bool ArmTranslatorVisitor::arm_SMLAxy(Cond cond, Reg d, Reg a, Reg m, bool M, bool N, Reg n) {
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC)
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC) {
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
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const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
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const IR::U32 product = ir.Mul(n16, m16);
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auto result_overflow = ir.AddWithCarry(product, ir.GetRegister(a), ir.Imm1(0));
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ir.SetRegister(d, result_overflow.result);
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ir.OrQFlag(result_overflow.overflow);
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
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const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
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const IR::U32 product = ir.Mul(n16, m16);
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const auto result_overflow = ir.AddWithCarry(product, ir.GetRegister(a), ir.Imm1(0));
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ir.SetRegister(d, result_overflow.result);
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ir.OrQFlag(result_overflow.overflow);
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return true;
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}
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// SMUL<x><y><c> <Rd>, <Rn>, <Rm>
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bool ArmTranslatorVisitor::arm_SMULxy(Cond cond, Reg d, Reg m, bool M, bool N, Reg n) {
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
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if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
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return UnpredictableInstruction();
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if (ConditionPassed(cond)) {
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
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const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
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const IR::U32 result = ir.Mul(n16, m16);
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ir.SetRegister(d, result);
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}
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if (!ConditionPassed(cond)) {
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return true;
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}
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const IR::U32 n32 = ir.GetRegister(n);
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const IR::U32 m32 = ir.GetRegister(m);
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const IR::U32 n16 = N ? ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result
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: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 m16 = M ? ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result
|
||||
: ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 result = ir.Mul(n16, m16);
|
||||
|
||||
ir.SetRegister(d, result);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// Multiply (word by halfword) instructions
|
||||
// SMLAW<y><c> <Rd>, <Rn>, <Rm>, <Ra>
|
||||
bool ArmTranslatorVisitor::arm_SMLAWy(Cond cond, Reg d, Reg a, Reg m, bool M, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U64 n32 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
IR::U32 m32 = ir.GetRegister(m);
|
||||
if (M)
|
||||
m32 = ir.LogicalShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
const IR::U64 m16 = ir.SignExtendWordToLong(ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32)));
|
||||
auto product = ir.LeastSignificantWord(ir.LogicalShiftRight(ir.Mul(n32, m16), ir.Imm8(16)));
|
||||
auto result_overflow = ir.AddWithCarry(product, ir.GetRegister(a), ir.Imm1(0));
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U64 n32 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
IR::U32 m32 = ir.GetRegister(m);
|
||||
if (M) {
|
||||
m32 = ir.LogicalShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
}
|
||||
const IR::U64 m16 = ir.SignExtendWordToLong(ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32)));
|
||||
const auto product = ir.LeastSignificantWord(ir.LogicalShiftRight(ir.Mul(n32, m16), ir.Imm8(16)));
|
||||
const auto result_overflow = ir.AddWithCarry(product, ir.GetRegister(a), ir.Imm1(0));
|
||||
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMULW<y><c> <Rd>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMULWy(Cond cond, Reg d, Reg m, bool M, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U64 n32 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
IR::U32 m32 = ir.GetRegister(m);
|
||||
if (M)
|
||||
m32 = ir.LogicalShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
const IR::U64 m16 = ir.SignExtendWordToLong(ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32)));
|
||||
auto result = ir.LogicalShiftRight(ir.Mul(n32, m16), ir.Imm8(16));
|
||||
ir.SetRegister(d, ir.LeastSignificantWord(result));
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U64 n32 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
IR::U32 m32 = ir.GetRegister(m);
|
||||
if (M) {
|
||||
m32 = ir.LogicalShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
}
|
||||
const IR::U64 m16 = ir.SignExtendWordToLong(ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32)));
|
||||
const auto result = ir.LogicalShiftRight(ir.Mul(n32, m16), ir.Imm8(16));
|
||||
|
||||
ir.SetRegister(d, ir.LeastSignificantWord(result));
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// Multiply (Most significant word) instructions
|
||||
// SMMLA{R}<c> <Rd>, <Rn>, <Rm>, <Ra>
|
||||
bool ArmTranslatorVisitor::arm_SMMLA(Cond cond, Reg d, Reg a, Reg m, bool R, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC /* no check for a */)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC /* no check for a */) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
auto a64 = ir.Pack2x32To1x64(ir.Imm32(0), ir.GetRegister(a));
|
||||
auto temp = ir.Add(a64, ir.Mul(n64, m64));
|
||||
auto result_carry = ir.MostSignificantWord(temp);
|
||||
auto result = result_carry.result;
|
||||
if (R)
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
ir.SetRegister(d, result);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
const auto a64 = ir.Pack2x32To1x64(ir.Imm32(0), ir.GetRegister(a));
|
||||
const auto temp = ir.Add(a64, ir.Mul(n64, m64));
|
||||
const auto result_carry = ir.MostSignificantWord(temp);
|
||||
auto result = result_carry.result;
|
||||
if (R) {
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
}
|
||||
|
||||
ir.SetRegister(d, result);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMMLS{R}<c> <Rd>, <Rn>, <Rm>, <Ra>
|
||||
bool ArmTranslatorVisitor::arm_SMMLS(Cond cond, Reg d, Reg a, Reg m, bool R, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC || a == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
auto a64 = ir.Pack2x32To1x64(ir.Imm32(0), ir.GetRegister(a));
|
||||
auto temp = ir.Sub(a64, ir.Mul(n64, m64));
|
||||
auto result_carry = ir.MostSignificantWord(temp);
|
||||
auto result = result_carry.result;
|
||||
if (R)
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
ir.SetRegister(d, result);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
const auto a64 = ir.Pack2x32To1x64(ir.Imm32(0), ir.GetRegister(a));
|
||||
const auto temp = ir.Sub(a64, ir.Mul(n64, m64));
|
||||
const auto result_carry = ir.MostSignificantWord(temp);
|
||||
auto result = result_carry.result;
|
||||
if (R) {
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
}
|
||||
|
||||
ir.SetRegister(d, result);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMMUL{R}<c> <Rd>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMMUL(Cond cond, Reg d, Reg m, bool R, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
auto product = ir.Mul(n64, m64);
|
||||
auto result_carry = ir.MostSignificantWord(product);
|
||||
auto result = result_carry.result;
|
||||
if (R)
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
ir.SetRegister(d, result);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const auto n64 = ir.SignExtendWordToLong(ir.GetRegister(n));
|
||||
const auto m64 = ir.SignExtendWordToLong(ir.GetRegister(m));
|
||||
const auto product = ir.Mul(n64, m64);
|
||||
const auto result_carry = ir.MostSignificantWord(product);
|
||||
auto result = result_carry.result;
|
||||
if (R) {
|
||||
result = ir.AddWithCarry(result, ir.Imm32(0), result_carry.carry).result;
|
||||
}
|
||||
|
||||
ir.SetRegister(d, result);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// Multiply (Dual) instructions
|
||||
// SMLAD{X}<c> <Rd>, <Rn>, <Rm>, <Ra>
|
||||
bool ArmTranslatorVisitor::arm_SMLAD(Cond cond, Reg d, Reg a, Reg m, bool M, Reg n) {
|
||||
if (a == Reg::PC)
|
||||
if (a == Reg::PC) {
|
||||
return arm_SMUAD(cond, d, m, M, n);
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
const IR::U32 addend = ir.GetRegister(a);
|
||||
auto result_overflow = ir.AddWithCarry(product_lo, product_hi, ir.Imm1(0));
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
result_overflow = ir.AddWithCarry(result_overflow.result, addend, ir.Imm1(0));
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
}
|
||||
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
const IR::U32 addend = ir.GetRegister(a);
|
||||
|
||||
auto result_overflow = ir.AddWithCarry(product_lo, product_hi, ir.Imm1(0));
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
result_overflow = ir.AddWithCarry(result_overflow.result, addend, ir.Imm1(0));
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMLALD{X}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMLALD(Cond cond, Reg dHi, Reg dLo, Reg m, bool M, Reg n) {
|
||||
if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (dLo == dHi)
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U64 product_lo = ir.SignExtendWordToLong(ir.Mul(n_lo, m_lo));
|
||||
const IR::U64 product_hi = ir.SignExtendWordToLong(ir.Mul(n_hi, m_hi));
|
||||
auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
|
||||
auto result = ir.Add(ir.Add(product_lo, product_hi), addend);
|
||||
ir.SetRegister(dLo, ir.LeastSignificantWord(result));
|
||||
ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
|
||||
}
|
||||
|
||||
if (dLo == dHi) {
|
||||
return UnpredictableInstruction();
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U64 product_lo = ir.SignExtendWordToLong(ir.Mul(n_lo, m_lo));
|
||||
const IR::U64 product_hi = ir.SignExtendWordToLong(ir.Mul(n_hi, m_hi));
|
||||
const auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
|
||||
const auto result = ir.Add(ir.Add(product_lo, product_hi), addend);
|
||||
|
||||
ir.SetRegister(dLo, ir.LeastSignificantWord(result));
|
||||
ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMLSD{X}<c> <Rd>, <Rn>, <Rm>, <Ra>
|
||||
bool ArmTranslatorVisitor::arm_SMLSD(Cond cond, Reg d, Reg a, Reg m, bool M, Reg n) {
|
||||
if (a == Reg::PC)
|
||||
if (a == Reg::PC) {
|
||||
return arm_SMUSD(cond, d, m, M, n);
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
const IR::U32 addend = ir.GetRegister(a);
|
||||
const IR::U32 product = ir.Sub(product_lo, product_hi);
|
||||
auto result_overflow = ir.AddWithCarry(product, addend, ir.Imm1(0));
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
}
|
||||
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
const IR::U32 addend = ir.GetRegister(a);
|
||||
const IR::U32 product = ir.Sub(product_lo, product_hi);
|
||||
auto result_overflow = ir.AddWithCarry(product, addend, ir.Imm1(0));
|
||||
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMLSLD{X}<c> <RdLo>, <RdHi>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMLSLD(Cond cond, Reg dHi, Reg dLo, Reg m, bool M, Reg n) {
|
||||
if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (dLo == Reg::PC || dHi == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (dLo == dHi)
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U64 product_lo = ir.SignExtendWordToLong(ir.Mul(n_lo, m_lo));
|
||||
const IR::U64 product_hi = ir.SignExtendWordToLong(ir.Mul(n_hi, m_hi));
|
||||
auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
|
||||
auto result = ir.Add(ir.Sub(product_lo, product_hi), addend);
|
||||
ir.SetRegister(dLo, ir.LeastSignificantWord(result));
|
||||
ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
|
||||
}
|
||||
|
||||
if (dLo == dHi) {
|
||||
return UnpredictableInstruction();
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U64 product_lo = ir.SignExtendWordToLong(ir.Mul(n_lo, m_lo));
|
||||
const IR::U64 product_hi = ir.SignExtendWordToLong(ir.Mul(n_hi, m_hi));
|
||||
const auto addend = ir.Pack2x32To1x64(ir.GetRegister(dLo), ir.GetRegister(dHi));
|
||||
const auto result = ir.Add(ir.Sub(product_lo, product_hi), addend);
|
||||
|
||||
ir.SetRegister(dLo, ir.LeastSignificantWord(result));
|
||||
ir.SetRegister(dHi, ir.MostSignificantWord(result).result);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMUAD{X}<c> <Rd>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMUAD(Cond cond, Reg d, Reg m, bool M, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
auto result_overflow = ir.AddWithCarry(product_lo, product_hi, ir.Imm1(0));
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
const auto result_overflow = ir.AddWithCarry(product_lo, product_hi, ir.Imm1(0));
|
||||
|
||||
ir.SetRegister(d, result_overflow.result);
|
||||
ir.OrQFlag(result_overflow.overflow);
|
||||
return true;
|
||||
}
|
||||
|
||||
// SMUSD{X}<c> <Rd>, <Rn>, <Rm>
|
||||
bool ArmTranslatorVisitor::arm_SMUSD(Cond cond, Reg d, Reg m, bool M, Reg n) {
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC)
|
||||
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
|
||||
return UnpredictableInstruction();
|
||||
if (ConditionPassed(cond)) {
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M)
|
||||
std::swap(m_lo, m_hi);
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
auto result = ir.Sub(product_lo, product_hi);
|
||||
ir.SetRegister(d, result);
|
||||
}
|
||||
|
||||
if (!ConditionPassed(cond)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
const IR::U32 n32 = ir.GetRegister(n);
|
||||
const IR::U32 m32 = ir.GetRegister(m);
|
||||
const IR::U32 n_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(n32));
|
||||
const IR::U32 n_hi = ir.ArithmeticShiftRight(n32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
|
||||
IR::U32 m_lo = ir.SignExtendHalfToWord(ir.LeastSignificantHalf(m32));
|
||||
IR::U32 m_hi = ir.ArithmeticShiftRight(m32, ir.Imm8(16), ir.Imm1(0)).result;
|
||||
if (M) {
|
||||
std::swap(m_lo, m_hi);
|
||||
}
|
||||
|
||||
const IR::U32 product_lo = ir.Mul(n_lo, m_lo);
|
||||
const IR::U32 product_hi = ir.Mul(n_hi, m_hi);
|
||||
auto result = ir.Sub(product_lo, product_hi);
|
||||
ir.SetRegister(d, result);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue