diff options
Diffstat (limited to 'src/ARMeilleure/Instructions/InstEmitAluHelper.cs')
| -rw-r--r-- | src/ARMeilleure/Instructions/InstEmitAluHelper.cs | 135 |
1 files changed, 87 insertions, 48 deletions
diff --git a/src/ARMeilleure/Instructions/InstEmitAluHelper.cs b/src/ARMeilleure/Instructions/InstEmitAluHelper.cs index 994878ad..4d4a31f7 100644 --- a/src/ARMeilleure/Instructions/InstEmitAluHelper.cs +++ b/src/ARMeilleure/Instructions/InstEmitAluHelper.cs @@ -26,7 +26,7 @@ namespace ARMeilleure.Instructions public static void EmitNZFlagsCheck(ArmEmitterContext context, Operand d) { - SetFlag(context, PState.NFlag, context.ICompareLess (d, Const(d.Type, 0))); + SetFlag(context, PState.NFlag, context.ICompareLess(d, Const(d.Type, 0))); SetFlag(context, PState.ZFlag, context.ICompareEqual(d, Const(d.Type, 0))); } @@ -196,60 +196,73 @@ namespace ARMeilleure.Instructions { // ARM32. case IOpCode32AluImm op: - { - if (ShouldSetFlags(context) && op.IsRotated && setCarry) { - SetFlag(context, PState.CFlag, Const((uint)op.Immediate >> 31)); + if (ShouldSetFlags(context) && op.IsRotated && setCarry) + { + SetFlag(context, PState.CFlag, Const((uint)op.Immediate >> 31)); + } + + return Const(op.Immediate); } + case IOpCode32AluImm16 op: return Const(op.Immediate); - } - - case IOpCode32AluImm16 op: return Const(op.Immediate); - case IOpCode32AluRsImm op: return GetMShiftedByImmediate(context, op, setCarry); - case IOpCode32AluRsReg op: return GetMShiftedByReg(context, op, setCarry); + case IOpCode32AluRsImm op: + return GetMShiftedByImmediate(context, op, setCarry); + case IOpCode32AluRsReg op: + return GetMShiftedByReg(context, op, setCarry); - case IOpCode32AluReg op: return GetIntA32(context, op.Rm); + case IOpCode32AluReg op: + return GetIntA32(context, op.Rm); // ARM64. case IOpCodeAluImm op: - { - if (op.GetOperandType() == OperandType.I32) - { - return Const((int)op.Immediate); - } - else { - return Const(op.Immediate); + if (op.GetOperandType() == OperandType.I32) + { + return Const((int)op.Immediate); + } + else + { + return Const(op.Immediate); + } } - } case IOpCodeAluRs op: - { - Operand value = GetIntOrZR(context, op.Rm); - - switch (op.ShiftType) { - case ShiftType.Lsl: value = context.ShiftLeft (value, Const(op.Shift)); break; - case ShiftType.Lsr: value = context.ShiftRightUI(value, Const(op.Shift)); break; - case ShiftType.Asr: value = context.ShiftRightSI(value, Const(op.Shift)); break; - case ShiftType.Ror: value = context.RotateRight (value, Const(op.Shift)); break; - } + Operand value = GetIntOrZR(context, op.Rm); - return value; - } + switch (op.ShiftType) + { + case ShiftType.Lsl: + value = context.ShiftLeft(value, Const(op.Shift)); + break; + case ShiftType.Lsr: + value = context.ShiftRightUI(value, Const(op.Shift)); + break; + case ShiftType.Asr: + value = context.ShiftRightSI(value, Const(op.Shift)); + break; + case ShiftType.Ror: + value = context.RotateRight(value, Const(op.Shift)); + break; + } + + return value; + } case IOpCodeAluRx op: - { - Operand value = GetExtendedM(context, op.Rm, op.IntType); + { + Operand value = GetExtendedM(context, op.Rm, op.IntType); - value = context.ShiftLeft(value, Const(op.Shift)); + value = context.ShiftLeft(value, Const(op.Shift)); - return value; - } + return value; + } - default: throw InvalidOpCodeType(context.CurrOp); + default: + throw InvalidOpCodeType(context.CurrOp); } } @@ -269,9 +282,15 @@ namespace ARMeilleure.Instructions { switch (op.ShiftType) { - case ShiftType.Lsr: shift = 32; break; - case ShiftType.Asr: shift = 32; break; - case ShiftType.Ror: shift = 1; break; + case ShiftType.Lsr: + shift = 32; + break; + case ShiftType.Asr: + shift = 32; + break; + case ShiftType.Ror: + shift = 1; + break; } } @@ -281,9 +300,15 @@ namespace ARMeilleure.Instructions switch (op.ShiftType) { - case ShiftType.Lsl: m = GetLslC(context, m, setCarry, shift); break; - case ShiftType.Lsr: m = GetLsrC(context, m, setCarry, shift); break; - case ShiftType.Asr: m = GetAsrC(context, m, setCarry, shift); break; + case ShiftType.Lsl: + m = GetLslC(context, m, setCarry, shift); + break; + case ShiftType.Lsr: + m = GetLsrC(context, m, setCarry, shift); + break; + case ShiftType.Asr: + m = GetAsrC(context, m, setCarry, shift); + break; case ShiftType.Ror: if (op.Immediate != 0) { @@ -306,9 +331,15 @@ namespace ARMeilleure.Instructions { switch (shiftType) { - case ShiftType.Lsr: shift = 32; break; - case ShiftType.Asr: shift = 32; break; - case ShiftType.Ror: shift = 1; break; + case ShiftType.Lsr: + shift = 32; + break; + case ShiftType.Asr: + shift = 32; + break; + case ShiftType.Ror: + shift = 1; + break; } } @@ -328,10 +359,18 @@ namespace ARMeilleure.Instructions switch (op.ShiftType) { - case ShiftType.Lsl: shiftResult = EmitLslC(context, m, setCarry, s, shiftIsZero); break; - case ShiftType.Lsr: shiftResult = EmitLsrC(context, m, setCarry, s, shiftIsZero); break; - case ShiftType.Asr: shiftResult = EmitAsrC(context, m, setCarry, s, shiftIsZero); break; - case ShiftType.Ror: shiftResult = EmitRorC(context, m, setCarry, s, shiftIsZero); break; + case ShiftType.Lsl: + shiftResult = EmitLslC(context, m, setCarry, s, shiftIsZero); + break; + case ShiftType.Lsr: + shiftResult = EmitLsrC(context, m, setCarry, s, shiftIsZero); + break; + case ShiftType.Asr: + shiftResult = EmitAsrC(context, m, setCarry, s, shiftIsZero); + break; + case ShiftType.Ror: + shiftResult = EmitRorC(context, m, setCarry, s, shiftIsZero); + break; } return context.ConditionalSelect(shiftIsZero, zeroResult, shiftResult); |