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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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33
X86Disassembler/X86/Handlers/Add/AddImmToRm32SignExtendedHandler.cs
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@ -1,3 +1,5 @@
using X86Disassembler.X86.Operands;
namespace X86Disassembler.X86.Handlers.Add;
/// <summary>
@ -8,11 +10,9 @@ public class AddImmToRm32SignExtendedHandler : InstructionHandler
/// <summary>
/// Initializes a new instance of the AddImmToRm32SignExtendedHandler 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 AddImmToRm32SignExtendedHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public AddImmToRm32SignExtendedHandler(InstructionDecoder decoder)
: base(decoder)
{
}
@ -27,11 +27,10 @@ public class AddImmToRm32SignExtendedHandler : InstructionHandler
return false;
// Check if the reg field of the ModR/M byte is 0 (ADD)
int position = Decoder.GetPosition();
if (!Decoder.CanReadByte())
return false;
byte modRM = CodeBuffer[position];
byte modRM = Decoder.PeakByte();
byte reg = (byte) ((modRM & 0x38) >> 3);
return reg == 0; // 0 = ADD
@ -45,8 +44,7 @@ public class AddImmToRm32SignExtendedHandler : InstructionHandler
/// <returns>True if the instruction was successfully decoded</returns>
public override bool Decode(byte opcode, Instruction instruction)
{
// Set the mnemonic
instruction.Mnemonic = "add";
instruction.Type = InstructionType.Add;
if (!Decoder.CanReadByte())
{
@ -65,21 +63,10 @@ public class AddImmToRm32SignExtendedHandler : InstructionHandler
// Read the immediate value as a signed byte and automatically sign-extend it to int
int imm = (sbyte) Decoder.ReadByte();
// Format the immediate value
string immStr;
if (imm < 0)
{
// For negative values, use the full 32-bit representation (0xFFFFFFxx)
immStr = $"0x{(uint) imm:X8}";
}
else
{
// For positive values, use the regular format with leading zeros
immStr = $"0x{imm:X8}";
}
// Set the operands
instruction.Operands = $"{destOperand}, {immStr}";
instruction.StructuredOperands = [
destOperand,
OperandFactory.CreateImmediateOperand(imm, 32),
];
return true;
}