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Created dedicated Mul namespace for MUL instruction handlers. Implemented MulRm8Handler for MUL r/m8 instruction (opcode F6 /4) and moved MulRm32Handler to the new namespace. Updated InstructionHandlerFactory to register both handlers.

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bird_egop
2025-04-16 20:43:06 +03:00
parent be2dfc3dc5
commit f654f64c71
3 changed files with 178 additions and 7 deletions
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35
X86Disassembler/X86/Handlers/InstructionHandlerFactory.cs
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@ -10,6 +10,8 @@ using X86Disassembler.X86.Handlers.Inc;
using X86Disassembler.X86.Handlers.Jump;
using X86Disassembler.X86.Handlers.Lea;
using X86Disassembler.X86.Handlers.Mov;
using X86Disassembler.X86.Handlers.Mul;
using X86Disassembler.X86.Handlers.Neg;
using X86Disassembler.X86.Handlers.Nop;
using X86Disassembler.X86.Handlers.Or;
using X86Disassembler.X86.Handlers.Pop;
@ -62,6 +64,8 @@ public class InstructionHandlerFactory
RegisterAddHandlers();
RegisterAndHandlers();
RegisterArithmeticUnaryHandlers();
RegisterNegHandlers(); // Register NEG handlers
RegisterMulHandlers(); // Register MUL handlers
RegisterCmpHandlers();
RegisterXorHandlers();
RegisterOrHandlers();
@ -90,13 +94,6 @@ public class InstructionHandlerFactory
// NOT handler
_handlers.Add(new NotRm32Handler(_decoder));
// NEG handlers
_handlers.Add(new NegRm8Handler(_decoder)); // F6 /3 - NEG r/m8
_handlers.Add(new NegRm32Handler(_decoder)); // F7 /3 - NEG r/m32
// MUL handler
_handlers.Add(new MulRm32Handler(_decoder));
// IMUL handler
_handlers.Add(new ImulRm32Handler(_decoder));
@ -441,6 +438,30 @@ public class InstructionHandlerFactory
_handlers.Add(new MultiByteNopHandler(_decoder));
}
/// <summary>
/// Registers all NEG instruction handlers
/// </summary>
private void RegisterNegHandlers()
{
// NEG r/m8 handler (F6 /3)
_handlers.Add(new NegRm8Handler(_decoder));
// NEG r/m32 handler (F7 /3)
_handlers.Add(new NegRm32Handler(_decoder));
}
/// <summary>
/// Registers all MUL instruction handlers
/// </summary>
private void RegisterMulHandlers()
{
// MUL r/m8 handler (F6 /4)
_handlers.Add(new MulRm8Handler(_decoder));
// MUL r/m32 handler (F7 /4)
_handlers.Add(new MulRm32Handler(_decoder));
}
/// <summary>
/// Gets the handler that can decode the given opcode
/// </summary>