Refactored register operands to separate 8-bit registers into dedicated Register8Operand class

X86Disassembler/X86/Operands/Register8Operand.cs

@@ -0,0 +1,31 @@
+namespace X86Disassembler.X86.Operands;
+
+/// <summary>
+/// Represents an 8-bit register operand in an x86 instruction
+/// </summary>
+public class Register8Operand : Operand
+{
+    /// <summary>
+    /// Gets or sets the 8-bit register
+    /// </summary>
+    public RegisterIndex8 Register { get; set; }
+    
+    /// <summary>
+    /// Initializes a new instance of the Register8Operand class
+    /// </summary>
+    /// <param name="register">The 8-bit register</param>
+    public Register8Operand(RegisterIndex8 register)
+    {
+        Type = OperandType.Register;
+        Register = register;
+        Size = 8; // Always 8 bits for this operand type
+    }
+    
+    /// <summary>
+    /// Returns a string representation of this operand
+    /// </summary>
+    public override string ToString()
+    {
+        return ModRMDecoder.GetRegisterName(Register);
+    }
+}