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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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35
X86Disassembler/X86/Handlers/Add/AddImmToRm8Handler.cs
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@ -1,5 +1,7 @@
namespace X86Disassembler.X86.Handlers.Add;
using X86Disassembler.X86.Operands;
/// <summary>
/// Handler for ADD r/m8, imm8 instruction (0x80 /0)
/// </summary>
@ -8,11 +10,9 @@ public class AddImmToRm8Handler : InstructionHandler
/// <summary>
/// Initializes a new instance of the AddImmToRm8Handler 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 AddImmToRm8Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
public AddImmToRm8Handler(InstructionDecoder decoder)
: base(decoder)
{
}
@ -26,12 +26,10 @@ public class AddImmToRm8Handler : InstructionHandler
if (opcode != 0x80)
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 +43,8 @@ public class AddImmToRm8Handler : InstructionHandler
/// <returns>True if the instruction was successfully decoded</returns>
public override bool Decode(byte opcode, Instruction instruction)
{
// Set the mnemonic
instruction.Mnemonic = "add";
// Set the instruction type and mnemonic
instruction.Type = InstructionType.Add;
if (!Decoder.CanReadByte())
{
@ -56,12 +54,8 @@ public class AddImmToRm8Handler : InstructionHandler
// Read the ModR/M byte
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM();
// For direct register addressing (mod == 3), use 8-bit register names
if (mod == 3)
{
// Use 8-bit register names for direct register addressing
destOperand = ModRMDecoder.GetRegisterName(rm, 8);
}
// Adjust the operand size to 8-bit
destOperand.Size = 8;
// Read the immediate value
if (!Decoder.CanReadByte())
@ -71,8 +65,15 @@ public class AddImmToRm8Handler : InstructionHandler
byte imm8 = Decoder.ReadByte();
// Set the operands
instruction.Operands = $"{destOperand}, 0x{imm8:X2}";
// Create the immediate operand
var sourceOperand = OperandFactory.CreateImmediateOperand(imm8, 8);
// Set the structured operands
instruction.StructuredOperands =
[
destOperand,
sourceOperand
];
return true;
}