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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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40
X86Disassembler/X86/Handlers/Mov/MovMemRegHandler.cs
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@ -1,3 +1,5 @@
using X86Disassembler.X86.Operands;
namespace X86Disassembler.X86.Handlers.Mov;
/// <summary>
@ -8,11 +10,9 @@ public class MovMemRegHandler : InstructionHandler
/// <summary>
/// Initializes a new instance of the MovMemRegHandler 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 MovMemRegHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public MovMemRegHandler(InstructionDecoder decoder)
: base(decoder)
{
}
@ -34,8 +34,8 @@ public class MovMemRegHandler : InstructionHandler
/// <returns>True if the instruction was successfully decoded</returns>
public override bool Decode(byte opcode, Instruction instruction)
{
// Set the mnemonic
instruction.Mnemonic = "mov";
// Set the instruction type
instruction.Type = InstructionType.Mov;
// Check if we have enough bytes for the ModR/M byte
if (!Decoder.CanReadByte())
@ -48,21 +48,23 @@ public class MovMemRegHandler : InstructionHandler
int operandSize = operandSize32 ? 32 : 8;
// Read the ModR/M byte
var (mod, reg, rm, memOperand) = ModRMDecoder.ReadModRM();
// For MOV r/m32, r32 (0x89) or MOV r/m8, r8 (0x88):
// - The r/m field with mod specifies the destination operand (register or memory)
// - The reg field specifies the source register
var (mod, reg, rm, destinationOperand) = ModRMDecoder.ReadModRM();
// Get register name based on size
string regName = ModRMDecoder.GetRegisterName(reg, operandSize);
// Adjust the operand size based on the opcode
destinationOperand.Size = operandSize;
// For mod == 3, both operands are registers
if (mod == 3)
{
string rmRegName = ModRMDecoder.GetRegisterName(rm, operandSize);
instruction.Operands = $"{rmRegName}, {regName}";
}
else // Memory operand
{
instruction.Operands = $"{memOperand}, {regName}";
}
// Create the source register operand
var sourceOperand = OperandFactory.CreateRegisterOperand(reg, operandSize);
// Set the structured operands
instruction.StructuredOperands =
[
destinationOperand,
sourceOperand
];
return true;
}