implement shift and rotate handlers. Fix tests

X86Disassembler/X86/Handlers/Misc/IntImm8Handler.cs

@@ -0,0 +1,61 @@
+namespace X86Disassembler.X86.Handlers.Misc;
+
+using X86Disassembler.X86.Operands;
+
+/// <summary>
+/// Handler for INT instruction (0xCD)
+/// </summary>
+public class IntImm8Handler : InstructionHandler
+{
+    /// <summary>
+    /// Initializes a new instance of the IntHandler class
+    /// </summary>
+    /// <param name="decoder">The instruction decoder that owns this handler</param>
+    public IntImm8Handler(InstructionDecoder decoder)
+        : base(decoder)
+    {
+    }
+
+    /// <summary>
+    /// Checks if this handler can decode the given opcode
+    /// </summary>
+    /// <param name="opcode">The opcode to check</param>
+    /// <returns>True if this handler can decode the opcode</returns>
+    public override bool CanHandle(byte opcode)
+    {
+        // INT is encoded as 0xCD
+        return opcode == 0xCD;
+    }
+
+    /// <summary>
+    /// Decodes an INT instruction
+    /// </summary>
+    /// <param name="opcode">The opcode of the instruction</param>
+    /// <param name="instruction">The instruction object to populate</param>
+    /// <returns>True if the instruction was successfully decoded</returns>
+    public override bool Decode(byte opcode, Instruction instruction)
+    {
+        // Set the instruction type
+        instruction.Type = InstructionType.Int;
+
+        // Check if we can read the immediate byte
+        if (!Decoder.CanReadByte())
+        {
+            return false;
+        }
+
+        // Read the immediate byte (interrupt vector)
+        byte imm8 = Decoder.ReadByte();
+
+        // Create an immediate operand for the interrupt vector
+        var operand = OperandFactory.CreateImmediateOperand(imm8);
+
+        // Set the structured operands
+        instruction.StructuredOperands = 
+        [
+            operand
+        ];
+
+        return true;
+    }
+}