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Updated instruction handlers to use Type and StructuredOperands instead of Mnemonic and Operands
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@ -1,5 +1,7 @@
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namespace X86Disassembler.X86.Handlers.Jump;
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using X86Disassembler.X86.Operands;
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/// <summary>
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/// Handler for conditional jump instructions (0x70-0x7F)
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/// </summary>
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@ -11,15 +13,22 @@ public class ConditionalJumpHandler : InstructionHandler
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"jo", "jno", "jb", "jnb", "jz", "jnz", "jbe", "jnbe",
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"js", "jns", "jp", "jnp", "jl", "jnl", "jle", "jnle"
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];
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// Instruction types for conditional jumps
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private static readonly InstructionType[] InstructionTypes =
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[
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InstructionType.Jo, InstructionType.Jno, InstructionType.Jb, InstructionType.Jae,
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InstructionType.Jz, InstructionType.Jnz, InstructionType.Jbe, InstructionType.Ja,
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InstructionType.Js, InstructionType.Jns, InstructionType.Unknown, InstructionType.Unknown,
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InstructionType.Jl, InstructionType.Jge, InstructionType.Jle, InstructionType.Jg
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];
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/// <summary>
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/// Initializes a new instance of the ConditionalJumpHandler class
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/// </summary>
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/// <param name="codeBuffer">The buffer containing the code to decode</param>
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/// <param name="decoder">The instruction decoder that owns this handler</param>
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/// <param name="length">The length of the buffer</param>
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public ConditionalJumpHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
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: base(codeBuffer, decoder, length)
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public ConditionalJumpHandler(InstructionDecoder decoder)
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: base(decoder)
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{
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}
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@ -42,9 +51,11 @@ public class ConditionalJumpHandler : InstructionHandler
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/// <returns>True if the instruction was successfully decoded</returns>
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public override bool Decode(byte opcode, Instruction instruction)
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{
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// Get the mnemonic from the table
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// Get the index from the opcode
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int index = opcode - 0x70;
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instruction.Mnemonic = Mnemonics[index];
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// Set the instruction type
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instruction.Type = InstructionTypes[index];
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// Check if we can read the offset byte
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if (!Decoder.CanReadByte())
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@ -57,8 +68,14 @@ public class ConditionalJumpHandler : InstructionHandler
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sbyte offset = (sbyte)Decoder.ReadByte();
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int targetAddress = position + 1 + offset;
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// Format the target address as a hexadecimal value
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instruction.Operands = $"0x{targetAddress:X8}";
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// Create the target address operand
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var targetOperand = OperandFactory.CreateRelativeOffsetOperand((ulong)targetAddress, 8);
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// Set the structured operands
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instruction.StructuredOperands =
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[
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targetOperand
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];
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return true;
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}
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