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Code Issues 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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36
X86Disassembler/X86/Handlers/Xor/XorImmWithRm32SignExtendedHandler.cs
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@@ -1,5 +1,7 @@
namespace X86Disassembler.X86.Handlers.Xor;
using X86Disassembler.X86.Operands;
/// <summary>
/// Handler for XOR r/m32, imm8 (sign-extended) instruction (0x83 /6)
/// </summary>
@@ -8,11 +10,9 @@ public class XorImmWithRm32SignExtendedHandler : InstructionHandler
/// <summary>
/// Initializes a new instance of the XorImmWithRm32SignExtendedHandler 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 XorImmWithRm32SignExtendedHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public XorImmWithRm32SignExtendedHandler(InstructionDecoder decoder)
: base(decoder)
{
}
@@ -30,7 +30,7 @@ public class XorImmWithRm32SignExtendedHandler : InstructionHandler
if (!Decoder.CanReadByte())
return false;
byte modRM = CodeBuffer[Decoder.GetPosition()];
byte modRM = Decoder.PeakByte();
byte reg = (byte)((modRM & 0x38) >> 3);
return reg == 6; // 6 = XOR
@@ -44,8 +44,8 @@ public class XorImmWithRm32SignExtendedHandler : 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())
{
@@ -64,21 +64,15 @@ public class XorImmWithRm32SignExtendedHandler : InstructionHandler
// Read the immediate value and sign-extend it to 32 bits
int imm32 = (sbyte)Decoder.ReadByte();
// Format the immediate value
string immStr;
if (imm32 < 0)
{
// For negative values, show the full sign-extended 32-bit value
immStr = $"0x{imm32:X8}";
}
else
{
// For positive values, show without leading zeros
immStr = $"0x{imm32:X2}";
}
// Create the immediate operand with sign extension
var immOperand = OperandFactory.CreateImmediateOperand(imm32);
// Set the operands
instruction.Operands = $"{destOperand}, {immStr}";
// Set the structured operands
instruction.StructuredOperands =
[
destOperand,
immOperand
];
return true;
}