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Code Issues Releases Activity

Updated instruction handlers to use Type and StructuredOperands instead of Mnemonic and Operands

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This commit is contained in:
bird_egop
2025-04-14 22:08:50 +03:00
parent c516e063e7
commit 685eeda03d
136 changed files with 3694 additions and 2584 deletions
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49
X86Disassembler/X86/Handlers/Xor/XorRm16R16Handler.cs
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@ -1,5 +1,7 @@
namespace X86Disassembler.X86.Handlers.Xor;
using X86Disassembler.X86.Operands;
/// <summary>
/// Handler for XOR r/m16, r16 instruction (0x31 with 0x66 prefix)
/// </summary>
@ -8,11 +10,9 @@ public class XorRm16R16Handler : InstructionHandler
/// <summary>
/// Initializes a new instance of the XorRm16R16Handler class
/// </summary>
/// <param name="codeBuffer">The buffer containing the code to decode</param>
/// <param name="decoder">The instruction decoder that owns this handler</param>
/// <param name="length">The length of the buffer</param>
public XorRm16R16Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public XorRm16R16Handler(InstructionDecoder decoder)
: base(decoder)
{
}
@ -35,8 +35,8 @@ public class XorRm16R16Handler : InstructionHandler
/// <returns>True if the instruction was successfully decoded</returns>
public override bool Decode(byte opcode, Instruction instruction)
{
// Set the mnemonic
instruction.Mnemonic = "xor";
// Set the instruction type
instruction.Type = InstructionType.Xor;
if (!Decoder.CanReadByte())
{
@ -44,33 +44,24 @@ public class XorRm16R16Handler : InstructionHandler
}
// Read the ModR/M byte
var (mod, reg, rm, memOperand) = ModRMDecoder.ReadModRM();
var (mod, reg, rm, destinationOperand) = ModRMDecoder.ReadModRM();
// Get register name for the second operand (16-bit)
string regName = ModRMDecoder.GetRegisterName(reg, 16);
// Create the source register operand (16-bit)
var sourceOperand = OperandFactory.CreateRegisterOperand(reg, 16);
// For the first operand, handle based on addressing mode
string rmOperand;
if (mod == 3) // Register addressing mode
// For memory operands, we need to adjust the size to 16-bit
if (mod != 3) // Memory addressing mode
{
// Get 16-bit register name for the first operand
rmOperand = ModRMDecoder.GetRegisterName(rm, 16);
// Adjust memory operand size to 16-bit
destinationOperand.Size = 16;
}
else // Memory addressing mode
{
// For memory operands, replace "dword ptr" with "word ptr"
if (memOperand.StartsWith("dword ptr "))
{
rmOperand = memOperand.Replace("dword ptr", "word ptr");
}
else
{
rmOperand = memOperand;
}
}
// Set the operands
instruction.Operands = $"{rmOperand}, {regName}";
// Set the structured operands
instruction.StructuredOperands =
[
destinationOperand,
sourceOperand
];
return true;
}