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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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28
X86Disassembler/X86/Handlers/Cmp/CmpImmWithRm32SignExtendedHandler.cs
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@ -1,5 +1,7 @@
namespace X86Disassembler.X86.Handlers.Cmp;
using X86Disassembler.X86.Operands;
/// <summary>
/// Handler for CMP r/m32, imm8 (sign-extended) instruction (0x83 /7)
/// </summary>
@ -8,11 +10,9 @@ public class CmpImmWithRm32SignExtendedHandler : InstructionHandler
/// <summary>
/// Initializes a new instance of the CmpImmWithRm32SignExtendedHandler 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 CmpImmWithRm32SignExtendedHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public CmpImmWithRm32SignExtendedHandler(InstructionDecoder decoder)
: base(decoder)
{
}
@ -27,11 +27,10 @@ public class CmpImmWithRm32SignExtendedHandler : InstructionHandler
return false;
// Check if the reg field of the ModR/M byte is 7 (CMP)
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 == 7; // 7 = CMP
@ -45,8 +44,8 @@ public class CmpImmWithRm32SignExtendedHandler : InstructionHandler
/// <returns>True if the instruction was successfully decoded</returns>
public override bool Decode(byte opcode, Instruction instruction)
{
// Set the mnemonic
instruction.Mnemonic = "cmp";
// Set the instruction type
instruction.Type = InstructionType.Cmp;
if (!Decoder.CanReadByte())
{
@ -64,9 +63,16 @@ public class CmpImmWithRm32SignExtendedHandler : InstructionHandler
// Read the immediate value as a signed byte and sign-extend it
sbyte imm8 = (sbyte) Decoder.ReadByte();
// Set the operands
instruction.Operands = $"{destOperand}, 0x{(uint) imm8:X2}";
// Create the immediate operand with sign extension
var immOperand = OperandFactory.CreateImmediateOperand(imm8);
// Set the structured operands
instruction.StructuredOperands =
[
destOperand,
immOperand
];
return true;
}