本文整理汇总了C#中MachineCodeEmitter类的典型用法代码示例。如果您正苦于以下问题：C# MachineCodeEmitter类的具体用法？C# MachineCodeEmitter怎么用？C# MachineCodeEmitter使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
MachineCodeEmitter类属于命名空间，在下文中一共展示了MachineCodeEmitter类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C#代码示例。
示例1: Emit
/// <summary>
///
/// </summary>
/// <param name="ctx"></param>
/// <param name="emitter"></param>
protected override void Emit(Context ctx, MachineCodeEmitter emitter)
{
RegisterOperand rop = (RegisterOperand)ctx.Result;
MemoryOperand mop = (MemoryOperand)ctx.Operand1;
byte[] code;
if (null != mop.Base)
{
code = new byte[] {
0x8d,
0x84,
(4 << 3)
};
code[1] |= (byte)((rop.Register.RegisterCode & 0x7));
code[2] |= (byte)((mop.Base.RegisterCode & 0x7));
}
else
{
code = new byte[] { 0xb8 };
}
emitter.Write (code, 0, code.Length);
emitter.EmitImmediate (mop);
}
开发者ID:hj1980，项目名称:Mosa，代码行数:30，代码来源:LeaInstruction.cs
示例2: Emit
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Result.IsRegister);
Debug.Assert(node.Operand1.IsRegister);
Debug.Assert(node.Operand2.IsConstant);
// reg from xmmreg, imm8
// 0110 0110:0000 1111:0011 1010: 0001 0110:11 xmmreg reg: imm8
var opcode = new OpcodeEncoder()
.AppendNibble(Bits.b0110) // 4:opcode
.AppendNibble(Bits.b0110) // 4:opcode
.AppendNibble(Bits.b0000) // 4:opcode
.AppendNibble(Bits.b1111) // 4:opcode
.AppendNibble(Bits.b0011) // 4:opcode
.AppendNibble(Bits.b1010) // 4:opcode
.AppendNibble(Bits.b0001) // 4:opcode
.AppendNibble(Bits.b0110) // 4:opcode
.Append2Bits(Bits.b11) // 2:opcode
.AppendRM(node.Operand1) // 3:r/m (source)
.AppendRegister(node.Result.Register) // 3:register (destination)
.AppendByteValue((byte)node.Operand2.ConstantUnsignedInteger); // 8:memory
emitter.Emit(opcode);
}
开发者ID:Zahovay，项目名称:MOSA-Project，代码行数:29，代码来源:Pextrd.cs
示例3: MovImmediateToFixedMemory
private static void MovImmediateToFixedMemory(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Operand1.IsConstant);
Debug.Assert(node.Operand2.IsResolvedConstant);
Debug.Assert(node.Operand3.IsConstant);
// immediate to memory 1100 011w: mod 000 r/m : immediate data
var opcode = new OpcodeEncoder()
.AppendConditionalPrefix(node.Size == InstructionSize.Size16, 0x66) // 8:prefix: 16bit
.AppendNibble(Bits.b1100) // 4:opcode
.Append3Bits(Bits.b011) // 3:opcode
.AppendWidthBit(node.Size != InstructionSize.Size8) // 1:width
.AppendMod(Bits.b00) // 2:mod (00)
.Append3Bits(Bits.b000) // 3:source (000)
.AppendRM(node.Operand1) // 3:r/m (destination)
.AppendConditionalDisplacement(!node.Operand1.IsLinkerResolved, node.Operand1) // 32:displacement value
.AppendConditionalIntegerValue(node.Operand1.IsLinkerResolved, 0) // 32:memory
.AppendInteger(node.Operand3, node.Size); // 8/16/32:immediate
if (node.Operand1.IsLinkerResolved && !node.Operand3.IsLinkerResolved)
emitter.Emit(opcode, node.Operand1, 2, node.Operand2.ConstantSignedInteger);
else if (node.Operand1.IsLinkerResolved && node.Operand3.IsLinkerResolved)
{
// fixme: trouble!
throw new NotImplementCompilerException("not here");
}
else
emitter.Emit(opcode);
}
开发者ID:tgiphil，项目名称:MOSA-Project，代码行数:32，代码来源:MovStore.cs
示例4: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context ctx, MachineCodeEmitter emitter)
{
if (ctx.Operand1 is ConstantOperand)
{
if (IsByte(ctx.Operand1))
emitter.Emit(CONST8, ctx.Operand1, null);
else if (IsShort(ctx.Operand1) || IsChar(ctx.Operand1))
emitter.Emit(CONST16, ctx.Operand1, null);
else if (IsInt(ctx.Operand1))
emitter.Emit(CONST32, ctx.Operand1, null);
return;
}
if (ctx.Operand1 is RegisterOperand)
{
if ((ctx.Operand1 as RegisterOperand).Register is SegmentRegister)
switch (((ctx.Operand1 as RegisterOperand).Register as SegmentRegister).Segment)
{
case SegmentRegister.SegmentType.CS: emitter.Emit(PUSH_CS, null, null); return;
case SegmentRegister.SegmentType.SS: emitter.Emit(PUSH_SS, null, null); return;
case SegmentRegister.SegmentType.DS: emitter.Emit(PUSH_DS, null, null); return;
case SegmentRegister.SegmentType.ES: emitter.Emit(PUSH_ES, null, null); return;
case SegmentRegister.SegmentType.FS: emitter.Emit(PUSH_FS, null, null); return;
case SegmentRegister.SegmentType.GS: emitter.Emit(PUSH_GS, null, null); return;
default: throw new InvalidOperationException(@"unable to emit opcode for segment register");
}
}
emitter.Emit(PUSH, ctx.Operand1, null, null);
}
开发者ID:davidleon，项目名称:MOSA-Project，代码行数:33，代码来源:PushInstruction.cs
示例5: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="emitter">The emitter.</param>
/// <exception cref="System.NotSupportedException"></exception>
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
OpCode opcode;
switch (node.ConditionCode)
{
case ConditionCode.Equal: opcode = E; break;
case ConditionCode.LessThan: opcode = LT; break;
case ConditionCode.LessOrEqual: opcode = LE; break;
case ConditionCode.GreaterOrEqual: opcode = GE; break;
case ConditionCode.GreaterThan: opcode = GT; break;
case ConditionCode.NotEqual: opcode = NE; break;
case ConditionCode.UnsignedGreaterOrEqual: opcode = UGE; break;
case ConditionCode.UnsignedGreaterThan: opcode = UGT; break;
case ConditionCode.UnsignedLessOrEqual: opcode = ULE; break;
case ConditionCode.UnsignedLessThan: opcode = ULT; break;
case ConditionCode.Parity: opcode = P; break;
case ConditionCode.NoParity: opcode = NP; break;
case ConditionCode.NoCarry: opcode = NC; break;
case ConditionCode.Carry: opcode = C; break;
case ConditionCode.Zero: opcode = Z; break;
case ConditionCode.NotZero: opcode = NZ; break;
default: throw new NotSupportedException();
}
emitter.Emit(opcode, node.Result, null);
}
开发者ID:Profi-Concept，项目名称:MOSA-Project，代码行数:33，代码来源:Setcc.cs
示例6: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Result == null);
OpCode opCode = ComputeOpCode(null, node.Operand1, node.Operand2);
emitter.Emit(opCode, node.Operand1, node.Operand2);
}
开发者ID:Profi-Concept，项目名称:MOSA-Project，代码行数:12，代码来源:Ucomiss.cs
示例7: MovsdRegToMemory
private static void MovsdRegToMemory(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Operand3.IsCPURegister);
Debug.Assert(node.ResultCount == 0);
Debug.Assert(!node.Operand3.IsConstant);
// xmmreg1 to mem 1111 0010:0000 1111:0001 0001: mod xmmreg r/m
var opcode = new OpcodeEncoder()
.AppendNibble(Bits.b1111) // 4:opcode
.AppendNibble(Bits.b0010) // 4:opcode
.AppendNibble(Bits.b0000) // 4:opcode
.AppendNibble(Bits.b1111) // 4:opcode
.AppendNibble(Bits.b0001) // 4:opcode
.AppendNibble(Bits.b0001) // 4:opcode
// This opcode has a directionality bit, and it is set to 0
// This means we must swap around operand1 and operand3, and set offsetDestination to false
.ModRegRMSIBDisplacement(false, node.Operand3, node.Operand1, node.Operand2) // Mod-Reg-RM-?SIB-?Displacement
.AppendConditionalIntegerValue(node.Operand1.IsLinkerResolved, 0); // 32:memory
if (node.Operand1.IsLinkerResolved)
emitter.Emit(opcode, node.Operand1, (opcode.Size - 32) / 8);
else
emitter.Emit(opcode);
}
开发者ID:tgiphil，项目名称:MOSA-Project，代码行数:25，代码来源:MovsdStore.cs
示例8: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
if (context.Result.IsRegister && context.Operand1.IsRegister && context.Operand2.IsRegister)
{
emitter.EmitThreeRegistersUnshifted(0x24, (byte)context.Operand1.Register.RegisterCode, (byte)context.Operand2.Register.RegisterCode, (byte)context.Result.Register.RegisterCode);
}
else if (context.Result.IsRegister && context.Operand1.IsRegister && context.Operand2.IsConstant)
{
int value = 0;
if (IsConstantBetween(context.Operand2, -128, 127, out value))
{
emitter.EmitTwoRegisterOperandsWithK8Immediate(0x00, (byte)context.Operand1.Register.RegisterCode, (byte)context.Result.Register.RegisterCode, (sbyte)value);
}
else
throw new OverflowException();
}
else if (context.Result.IsRegister && context.Operand1.IsRegister)
{
emitter.EmitTwoRegisterInstructions(0x13, (byte)context.Operand1.Register.RegisterCode, (byte)context.Result.Register.RegisterCode);
}
else
{
throw new Exception("Not supported combination of operands");
}
}
开发者ID:jeffreye，项目名称:MOSA-Project，代码行数:30，代码来源:Mul.cs
示例9: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="emitter">The emitter.</param>
/// <exception cref="System.NotSupportedException"></exception>
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
byte[] opcode = null;
switch (node.ConditionCode)
{
case ConditionCode.Equal: opcode = JE; break;
case ConditionCode.NotEqual: opcode = JNE; break;
case ConditionCode.Zero: opcode = JZ; break;
case ConditionCode.NotZero: opcode = JNZ; break;
case ConditionCode.GreaterOrEqual: opcode = JGE; break;
case ConditionCode.GreaterThan: opcode = JG; break;
case ConditionCode.LessOrEqual: opcode = JLE; break;
case ConditionCode.LessThan: opcode = JL; break;
case ConditionCode.UnsignedGreaterOrEqual: opcode = JAE; break;
case ConditionCode.UnsignedGreaterThan: opcode = JA; break;
case ConditionCode.UnsignedLessOrEqual: opcode = JBE; break;
case ConditionCode.UnsignedLessThan: opcode = JB; break;
case ConditionCode.Signed: opcode = JS; break;
case ConditionCode.NotSigned: opcode = JNS; break;
case ConditionCode.Carry: opcode = JC; break;
case ConditionCode.NoCarry: opcode = JNC; break;
case ConditionCode.Overflow: opcode = JO; break;
case ConditionCode.NoOverflow: opcode = JNO; break;
case ConditionCode.Parity: opcode = JP; break;
case ConditionCode.NoParity: opcode = JNP; break;
default: throw new NotSupportedException();
}
emitter.EmitRelativeBranch(opcode, node.BranchTargets[0].Label);
}
开发者ID:Zahovay，项目名称:MOSA-Project，代码行数:37，代码来源:Branch.cs
示例10: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
Debug.Assert(context.Result == null);
OpCode opCode = ComputeOpCode(null, context.Operand1, context.Operand2);
emitter.Emit(opCode, context.Operand1, context.Operand2);
}
开发者ID:toddhainsworth，项目名称:MOSA-Project，代码行数:12，代码来源:TwoOperandNoResultInstruction.cs
示例11: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
if (context.OperandCount == 0)
{
// TODO:
//emitter.EmitBranch(LabelCall, context.BranchTargets[0]);
return;
}
Operand destinationOperand = context.Operand1;
SymbolOperand destinationSymbol = destinationOperand as SymbolOperand;
if (destinationSymbol != null)
{
emitter.Call(destinationSymbol);
}
else
{
if (destinationOperand is MemoryOperand)
{
//RegisterOperand register = destinationOperand as RegisterOperand;
//emitter.EmitSingleRegisterInstructions(0x11, (byte)register.Register.RegisterCode);
MemoryOperand memory = destinationOperand as MemoryOperand;
emitter.EmitRegisterOperandWithK16(0x101, (byte)memory.Base.RegisterCode, (ushort)memory.Offset);
}
}
}
开发者ID:grover，项目名称:MOSA-Project，代码行数:32，代码来源:Call.cs
示例12: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
if (context.Result is RegisterOperand && context.Operand1 is ConstantOperand)
{
RegisterOperand reg = context.Result as RegisterOperand;
ConstantOperand op = context.Operand1 as ConstantOperand;
int value = 0;
if (IsConstantBetween(op, -128, 127, out value))
{
emitter.EmitK8immediateAndSingleRegister(0x01, (sbyte)value, (byte)reg.Register.RegisterCode); // mov Rd, Imm (k8)
}
else
if (IsConstantBetween(op, -1048576, 1048575, out value))
{
emitter.EmitRegisterOrConditionCodeAndK21(0x03, (byte)reg.Register.RegisterCode, value); // mov Rd, Imm (k21)
}
else
throw new OverflowException();
}
else
if ((context.Result is RegisterOperand) && (context.Operand1 is RegisterOperand))
{
RegisterOperand destination = context.Result as RegisterOperand;
RegisterOperand source = context.Operand1 as RegisterOperand;
emitter.EmitTwoRegisterInstructions(0x09, (byte)source.Register.RegisterCode, (byte)destination.Register.RegisterCode); // mov Rd, Rs
}
//else
//throw new Exception("Not supported combination of operands");
}
开发者ID:pdelprat，项目名称:MOSA-Project，代码行数:37，代码来源:MovInstruction.cs
示例13: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="emitter">The emitter.</param>
/// <exception cref="System.InvalidOperationException">@unable to emit opcode for segment register</exception>
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
if (node.Operand1.IsConstant)
{
if (node.Operand1.IsByte)
emitter.Emit(CONST8, node.Operand1);
else if (node.Operand1.IsShort || node.Operand1.IsChar)
emitter.Emit(CONST16, node.Operand1);
else if (node.Operand1.IsInt)
emitter.Emit(CONST32, node.Operand1);
return;
}
if (node.Operand1.IsCPURegister)
{
if (node.Operand1.Register is SegmentRegister)
switch ((node.Operand1.Register as SegmentRegister).Segment)
{
case SegmentRegister.SegmentType.CS: emitter.Emit(PUSH_CS); return;
case SegmentRegister.SegmentType.SS: emitter.Emit(PUSH_SS); return;
case SegmentRegister.SegmentType.DS: emitter.Emit(PUSH_DS); return;
case SegmentRegister.SegmentType.ES: emitter.Emit(PUSH_ES); return;
case SegmentRegister.SegmentType.FS: emitter.Emit(PUSH_FS); return;
case SegmentRegister.SegmentType.GS: emitter.Emit(PUSH_GS); return;
default: throw new InvalidOperationException(@"unable to emit opcode for segment register");
}
}
emitter.Emit(PUSH, node.Operand1);
}
开发者ID:tgiphil，项目名称:MOSA-Project，代码行数:34，代码来源:Push.cs
示例14: CmpXchg
private static void CmpXchg(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Result.IsRegister);
Debug.Assert(node.Operand1.IsRegister);
Debug.Assert(node.Operand2.IsRegister);
Debug.Assert(node.GetOperand(3).IsRegister);
Debug.Assert(node.Result.Register == GeneralPurposeRegister.EAX);
Debug.Assert(node.Operand1.Register == GeneralPurposeRegister.EAX);
Debug.Assert(node.ResultCount == 1);
var linkreference = node.Operand2.IsLabel || node.Operand2.IsField || node.Operand2.IsSymbol;
// Compare EAX with r/m32. If equal, ZF is set and r32 is loaded into r/m32.
// Else, clear ZF and load r/m32 into EAX.
// memory, register 0000 1111 : 1011 000w : mod reg r/m
var opcode = new OpcodeEncoder()
.AppendConditionalPrefix(0x66, node.Size == InstructionSize.Size16) // 8:prefix: 16bit
.AppendNibble(Bits.b0000) // 4:opcode
.AppendNibble(Bits.b1111) // 4:opcode
.AppendNibble(Bits.b1011) // 4:opcode
.Append3Bits(Bits.b000) // 3:opcode
.AppendWidthBit(node.Size != InstructionSize.Size8) // 1:width
.ModRegRMSIBDisplacement(node.GetOperand(3), node.Operand2, node.Operand3) // Mod-Reg-RM-?SIB-?Displacement
.AppendConditionalIntegerValue(0, linkreference); // 32:memory
if (linkreference)
emitter.Emit(opcode, node.Operand1, (opcode.Size - 32) / 8);
else
emitter.Emit(opcode);
}
开发者ID:Zahovay，项目名称:MOSA-Project，代码行数:31，代码来源:CmpXchgLoad.cs
示例15: Emit
/// <summary>
///
/// </summary>
/// <param name="ctx"></param>
/// <param name="emitter"></param>
protected override void Emit(Context ctx, MachineCodeEmitter emitter)
{
emitter.Emit (new OpCode (new byte[] {
0xf,
0xa2
}), null, null);
}
开发者ID:hj1980，项目名称:Mosa，代码行数:12，代码来源:CpuIdEcxInstruction.cs
示例16: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
if (context.Result is RegisterOperand && context.Operand1 is RegisterOperand && context.Operand2 is RegisterOperand)
{
RegisterOperand destination = context.Result as RegisterOperand;
RegisterOperand firstSource = context.Operand1 as RegisterOperand;
RegisterOperand secondSource = context.Operand2 as RegisterOperand;
emitter.EmitThreeRegistersUnshifted(0x24, (byte)firstSource.Register.RegisterCode, (byte)secondSource.Register.RegisterCode, (byte)destination.Register.RegisterCode);
}
else
if (context.Result is RegisterOperand && context.Operand1 is RegisterOperand && context.Operand2 is ConstantOperand)
{
RegisterOperand destination = context.Result as RegisterOperand;
RegisterOperand source = context.Operand1 as RegisterOperand;
ConstantOperand immediate = context.Operand2 as ConstantOperand;
int value = 0;
if (IsConstantBetween(immediate, -128, 127, out value))
{
emitter.EmitTwoRegisterOperandsWithK8Immediate(0x00, (byte)source.Register.RegisterCode, (byte)destination.Register.RegisterCode, (sbyte)value);
}
else
throw new OverflowException();
}
else
if (context.Result is RegisterOperand && context.Operand1 is RegisterOperand)
{
RegisterOperand destination = context.Result as RegisterOperand;
RegisterOperand source = context.Operand1 as RegisterOperand;
emitter.EmitTwoRegisterInstructions(0x13, (byte)source.Register.RegisterCode, (byte)destination.Register.RegisterCode);
}
else
{
throw new Exception("Not supported combination of operands");
}
}
开发者ID:GeroL，项目名称:MOSA-Project，代码行数:40，代码来源:MulInstruction.cs
示例17: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context ctx, MachineCodeEmitter emitter)
{
if (ctx.Result is RegisterOperand)
emitter.WriteByte ((byte)(0x58 + (ctx.Result as RegisterOperand).Register.RegisterCode));
else
emitter.Emit (POP.Code, 0, ctx.Result, null);
}
开发者ID:hj1980，项目名称:Mosa，代码行数:12，代码来源:PopInstruction.cs
示例18: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="emitter">The emitter.</param>
/// <exception cref="System.NotSupportedException"></exception>
protected override void Emit(InstructionNode node, MachineCodeEmitter emitter)
{
OpCode opcode = null;
switch (node.ConditionCode)
{
case ConditionCode.Equal: opcode = CMOVO; break;
case ConditionCode.NotEqual: opcode = CMOVNE; break;
case ConditionCode.Zero: opcode = CMOVZ; break;
case ConditionCode.NotZero: opcode = CMOVNZ; break;
case ConditionCode.GreaterOrEqual: opcode = CMOVGE; break;
case ConditionCode.GreaterThan: opcode = CMOVG; break;
case ConditionCode.LessOrEqual: opcode = CMOVLE; break;
case ConditionCode.LessThan: opcode = CMOVL; break;
case ConditionCode.UnsignedGreaterOrEqual: opcode = CMOVNB; break;
case ConditionCode.UnsignedGreaterThan: opcode = CMOVA; break;
case ConditionCode.UnsignedLessOrEqual: opcode = CMOVBE; break;
case ConditionCode.UnsignedLessThan: opcode = CMOVB; break;
case ConditionCode.Signed: opcode = CMOVS; break;
case ConditionCode.NotSigned: opcode = CMOVNS; break;
case ConditionCode.Carry: opcode = CMOVC; break;
case ConditionCode.NoCarry: opcode = CMOVNC; break;
case ConditionCode.Overflow: opcode = CMOVO; break;
case ConditionCode.NoOverflow: opcode = CMOVNO; break;
case ConditionCode.Parity: opcode = CMOVP; break;
case ConditionCode.NoParity: opcode = CMOVNP; break;
default: throw new NotSupportedException();
}
emitter.Emit(opcode, node.Result, node.Operand1);
}
开发者ID:pacificIT，项目名称:MOSA-Project，代码行数:37，代码来源:Cmovcc.cs
示例19: Emit
/// <summary>
/// Emits the specified platform instruction.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="emitter">The emitter.</param>
protected override void Emit(Context context, MachineCodeEmitter emitter)
{
if (context.Result.IsRegister && context.Operand1.IsRegister)
{
emitter.EmitTwoRegisterInstructions(0x03, (byte)context.Operand1.Register.RegisterCode, (byte)context.Result.Register.RegisterCode); // cp.w Rd, Rs
}
else if (context.Result.IsRegister && context.Operand1.IsConstant)
{
int value = 0;
if (IsConstantBetween(context.Operand1, -32, 31, out value))
{
emitter.EmitK6immediateAndSingleRegister((sbyte)value, (byte)context.Result.Register.RegisterCode); // cp.w Rd, imm 6 bits
}
else if (IsConstantBetween(context.Operand1, -1048576, 1048575, out value))
{
emitter.EmitRegisterOrConditionCodeAndK21((byte)0x02, (byte)context.Result.Register.RegisterCode, value); // cp.w Rd, imm 21 bits
}
else
throw new OverflowException();
}
else
throw new Exception("Not supported combination of operands");
}
开发者ID:pdelprat，项目名称:MOSA-Project，代码行数:30，代码来源:Cp.cs
示例20: MovImmediateToFixedMemory
private static void MovImmediateToFixedMemory(InstructionNode node, MachineCodeEmitter emitter)
{
Debug.Assert(node.Operand1.IsConstant);
Debug.Assert(node.Operand2.IsConstantZero);
Debug.Assert(node.Operand3.IsConstant);
Debug.Assert(node.ResultCount == 0);
var linkreference = node.Operand3.IsLabel || node.Operand3.IsField || node.Operand3.IsSymbol;
// immediate to memory 1100 011w: mod 000 r/m : immediate data
var opcode = new OpcodeEncoder()
.AppendConditionalPrefix(0x66, node.Size == InstructionSize.Size16) // 8:prefix: 16bit
.AppendNibble(Bits.b1100) // 4:opcode
.Append3Bits(Bits.b011) // 3:opcode
.AppendWidthBit(node.Size != InstructionSize.Size8) // 1:width
.AppendMod(Bits.b00) // 2:mod (000)
.Append3Bits(Bits.b000) // 3:source (000)
.AppendRM(node.Operand1) // 3:r/m (destination)
.AppendConditionalDisplacement(node.Operand1, !linkreference) // 32:displacement value
.AppendConditionalIntegerValue(0, linkreference) // 32:memory
.AppendInteger(node.Operand3, node.Size); // 8/16/32:immediate
if (linkreference)
emitter.Emit(opcode, node.Operand1, (opcode.Size - (int)node.Size) / 8);
else
emitter.Emit(opcode);
}
开发者ID:Zahovay，项目名称:MOSA-Project，代码行数:27，代码来源:MovStore.cs
注：本文中的MachineCodeEmitter类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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