public static bool InstructionHasImmediate(this OperandEncoding encoding)
{
return(encoding == OperandEncoding.I ||
encoding == OperandEncoding.MI ||
encoding == OperandEncoding.OI ||
encoding == OperandEncoding.RMI ||
encoding == OperandEncoding.D);
}
/// <summary>
/// Initializes a new instance of the <see cref="OperandDescriptor"/> structure.
/// </summary>
/// <param name="operandType">The type of operand.</param>
/// <param name="registerType">A bitwise combination of valid types of the register.</param>
/// <param name="size">The size of the operand.</param>
/// <param name="encoding">Specifies how the operand is encoded.</param>
OperandDescriptor(OperandType operandType, RegisterType registerType, DataSize size, OperandEncoding encoding)
{
OperandType = operandType;
RegisterType = registerType;
Size = (size != DataSize.None ? size : registerType.GetSize());
FixedRegister = Register.None;
OperandEncoding = encoding;
}
public OpCodeOperandKindDef(EnumValue enumValue, OpCodeOperandKindDefFlags flags, OperandEncoding encoding, int arg1, int arg2, Register register)
{
EnumValue = enumValue;
Flags = flags;
OperandEncoding = encoding;
this.arg1 = arg1;
this.arg2 = arg2;
this.register = register;
}
public static bool RequiresModRM(this OperandEncoding encoding)
{
return(encoding == OperandEncoding.M ||
encoding == OperandEncoding.MI ||
encoding == OperandEncoding.MR ||
encoding == OperandEncoding.RM ||
encoding == OperandEncoding.RMI ||
encoding == OperandEncoding.M1 ||
encoding == OperandEncoding.MC);
}
protected OpCode(byte[] code, string name, OperandEncoding opEn, string description, int operandSize, int extension = -1, bool signExtended = false, int signExtensionSize = 64)
{
this.Code = code;
this.Name = name;
this.OpEn = opEn;
this.Description = description;
this.OperandSize = operandSize;
this.Extension = extension;
this.SignExtendedImmediate = signExtended;
this.SignExtensionSize = signExtensionSize;
}
/// <summary>
/// Initializes a new instance of the <see cref="OperandDescriptor"/> structure.
/// </summary>
/// <param name="operandType">The type of operand.</param>
/// <param name="size">The size of the operand.</param>
/// <param name="encoding">How the operand is encoded.</param>
public OperandDescriptor(OperandType operandType, DataSize size, OperandEncoding encoding)
: this(operandType, RegisterType.None, size, encoding)
{
#region Contract
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(OperandType), operandType));
Contract.Requires <ArgumentException>(operandType != OperandType.FixedRegister,
"To specify a fixed register, use the appropriate constructor.");
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(DataSize), size));
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(OperandEncoding), encoding));
Contract.Requires <ArgumentException>(
operandType != OperandType.RegisterOperand && operandType != OperandType.RegisterOrMemoryOperand,
"A register type must be specified when the type of operand may take a register." +
"Use the appropriate constructor.");
#endregion
}
/// <summary>
/// Adjusts this <see cref="Operand"/> based on the specified
/// <see cref="X86Instruction.OperandDescriptor"/>.
/// </summary>
/// <param name="descriptor">The <see cref="X86Instruction.OperandDescriptor"/> used to
/// adjust.</param>
/// <remarks>
/// Only <see cref="X86Instruction.OperandDescriptor"/> instances for which <see cref="IsMatch"/>
/// returns <see langword="true"/> may be used as a parameter to this method.
/// </remarks>
internal override void Adjust(X86Instruction.OperandDescriptor descriptor)
{
// When the operand needs to be added to the opcode, set it as such.
if (descriptor.OperandEncoding == X86Instruction.OperandEncoding.OpcodeAdd)
{
this.Encoding = OperandEncoding.AddToOpcode;
}
else if (descriptor.OperandType == X86Instruction.OperandType.FixedRegister)
{
this.Encoding = OperandEncoding.Ignore;
}
else
{
this.Encoding = OperandEncoding.Default;
}
}
/// <summary>
/// Adjusts this <see cref="Operand"/> based on the specified
/// <see cref="OperandDescriptor"/>.
/// </summary>
/// <param name="descriptor">The <see cref="OperandDescriptor"/> used to
/// adjust.</param>
/// <remarks>
/// Only <see cref="OperandDescriptor"/> instances for which <see cref="IsMatch"/>
/// returns <see langword="true"/> may be used as a parameter to this method.
/// </remarks>
public override void Adjust(OperandDescriptor descriptor)
{
// When the operand needs to be added to the opcode, set it as such.
if (descriptor.OperandEncoding == X86.OperandEncoding.OpcodeAdd)
{
Encoding = OperandEncoding.AddToOpcode;
}
else if (descriptor.OperandType == OperandType.RegisterOrMemoryOperand)
{
Encoding = OperandEncoding.ModRm;
}
else if (descriptor.OperandType == OperandType.FixedRegister)
{
Encoding = OperandEncoding.Ignore;
}
else
{
Encoding = OperandEncoding.Default;
}
}
public OperandDefinition(OperandField field, OperandEncoding encoding, AccessType accessType)
{
this.Field = field;
this.Encoding = encoding;
this.AccessType = accessType;
}
/// <summary>
/// Adjusts this <see cref="Operand"/> based on the specified
/// <see cref="OperandDescriptor"/>.
/// </summary>
/// <param name="descriptor">The <see cref="OperandDescriptor"/> used to
/// adjust.</param>
/// <remarks>
/// Only <see cref="OperandDescriptor"/> instances for which <see cref="IsMatch"/>
/// returns <see langword="true"/> may be used as a parameter to this method.
/// </remarks>
public override void Adjust(OperandDescriptor descriptor)
{
// When the operand needs to be added to the opcode, set it as such.
if (descriptor.OperandEncoding == X86.OperandEncoding.OpcodeAdd)
Encoding = OperandEncoding.AddToOpcode;
else if (descriptor.OperandType == OperandType.RegisterOrMemoryOperand)
Encoding = OperandEncoding.ModRm;
else if (descriptor.OperandType == OperandType.FixedRegister)
Encoding = OperandEncoding.Ignore;
else
Encoding = OperandEncoding.Default;
}
/// <summary>
/// Initializes a new instance of the <see cref="OperandDescriptor"/> structure.
/// </summary>
/// <param name="operandType">The type of operand.</param>
/// <param name="registerType">The type of register.</param>
/// <param name="encoding">How the operand is encoded.</param>
public OperandDescriptor(OperandType operandType, RegisterType registerType, OperandEncoding encoding)
: this(operandType, registerType, DataSize.None, encoding)
{
}
internal Bit64SignExtendedOpCode(byte[] code, string name, OperandEncoding opEn, string description, int operandSize, int extension = -1) : base(code, name, opEn, description, operandSize, extension, true, 64)
{
}
public static bool UsesRegisterValueWithOpCode(this OperandEncoding encoding)
{
return(encoding == OperandEncoding.O ||
encoding == OperandEncoding.OI);
}
/// <summary>
/// Initializes a new instance of the <see cref="OperandDescriptor"/> structure.
/// </summary>
/// <param name="operandType">The type of operand.</param>
/// <param name="registerType">A bitwise combination of valid types of the register.</param>
/// <param name="size">The size of the operand.</param>
/// <param name="encoding">Specifies how the operand is encoded.</param>
private OperandDescriptor(OperandType operandType, RegisterType registerType, DataSize size, OperandEncoding encoding)
{
#region Contract
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(OperandType), operandType));
Contract.Requires <ArgumentException>(operandType != OperandType.FixedRegister,
"To specify a fixed register, use the appropriate constructor.");
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(DataSize), size));
Contract.Requires <InvalidEnumArgumentException>(Enum.IsDefined(typeof(OperandEncoding), encoding));
Contract.Requires <ArgumentException>(
(operandType != OperandType.RegisterOperand && operandType != OperandType.RegisterOrMemoryOperand) ||
registerType != RegisterType.None,
"A register type must be specified when the type of operand may take a register.");
#endregion
this.operandType = operandType;
this.registerType = registerType;
this.size = (size != DataSize.None ? size : registerType.GetSize());
this.fixedRegister = Register.None;
this.operandEncoding = encoding;
}
/// <summary>
/// Adjusts this <see cref="Operand"/> based on the specified
/// <see cref="X86Instruction.OperandDescriptor"/>.
/// </summary>
/// <param name="descriptor">The <see cref="X86Instruction.OperandDescriptor"/> used to
/// adjust.</param>
/// <remarks>
/// Only <see cref="X86Instruction.OperandDescriptor"/> instances for which <see cref="IsMatch"/>
/// returns <see langword="true"/> may be used as a parameter to this method.
/// </remarks>
internal override void Adjust(X86Instruction.OperandDescriptor descriptor)
{
// When the operand needs to be added to the opcode, set it as such.
if (descriptor.OperandEncoding == X86Instruction.OperandEncoding.OpcodeAdd)
this.Encoding = OperandEncoding.AddToOpcode;
else if (descriptor.OperandType == X86Instruction.OperandType.FixedRegister)
this.Encoding = OperandEncoding.Ignore;
else
this.Encoding = OperandEncoding.Default;
}
