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Code Issues Releases Activity

Fix FSUB/FSUBR and FSUBP/FSUBRP instruction type handling

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bird_egop 2025-04-18 13:41:42 +03:00
parent 7bb14523e5
commit 1536ce4385
3 changed files with 13 additions and 13 deletions
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8
X86Disassembler/X86/Handlers/FloatingPoint/Arithmetic/FsubpStiStHandler.cs
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@ -3,7 +3,7 @@ namespace X86Disassembler.X86.Handlers.FloatingPoint.Arithmetic;
using X86Disassembler.X86.Operands; using X86Disassembler.X86.Operands;
/// <summary> /// <summary>
/// Handler for FSUBP ST(i), ST instruction (DE E0-E7) /// Handler for FSUBRP ST(i), ST instruction (DE E0-E7)
/// </summary> /// </summary>
public class FsubpStiStHandler : InstructionHandler public class FsubpStiStHandler : InstructionHandler
{ {
@ -23,7 +23,7 @@ public class FsubpStiStHandler : InstructionHandler
/// <returns>True if this handler can decode the opcode</returns> /// <returns>True if this handler can decode the opcode</returns>
public override bool CanHandle(byte opcode) public override bool CanHandle(byte opcode)
{ {
// FSUBP ST(i), ST is DE E0-E7 // FSUBRP ST(i), ST is DE E0-E7
if (opcode != 0xDE) return false; if (opcode != 0xDE) return false;
if (!Decoder.CanReadByte()) if (!Decoder.CanReadByte())
@ -39,7 +39,7 @@ public class FsubpStiStHandler : InstructionHandler
} }
/// <summary> /// <summary>
/// Decodes a FSUBP ST(i), ST instruction /// Decodes a FSUBRP ST(i), ST instruction
/// </summary> /// </summary>
/// <param name="opcode">The opcode of the instruction</param> /// <param name="opcode">The opcode of the instruction</param>
/// <param name="instruction">The instruction object to populate</param> /// <param name="instruction">The instruction object to populate</param>
@ -55,7 +55,7 @@ public class FsubpStiStHandler : InstructionHandler
var stIndex = (FpuRegisterIndex)(Decoder.ReadByte() - 0xE0); var stIndex = (FpuRegisterIndex)(Decoder.ReadByte() - 0xE0);
// Set the instruction type // Set the instruction type
instruction.Type = InstructionType.Fsubp; instruction.Type = InstructionType.Fsubrp;
// Create the FPU register operands // Create the FPU register operands
var stiOperand = OperandFactory.CreateFPURegisterOperand(stIndex); var stiOperand = OperandFactory.CreateFPURegisterOperand(stIndex);

8
X86Disassembler/X86/Handlers/FloatingPoint/Arithmetic/FsubrpStiStHandler.cs
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@ -3,7 +3,7 @@ namespace X86Disassembler.X86.Handlers.FloatingPoint.Arithmetic;
using X86Disassembler.X86.Operands; using X86Disassembler.X86.Operands;
/// <summary> /// <summary>
/// Handler for FSUBRP ST(i), ST instruction (DE E8-EF) /// Handler for FSUBP ST(i), ST instruction (DE E8-EF)
/// </summary> /// </summary>
public class FsubrpStiStHandler : InstructionHandler public class FsubrpStiStHandler : InstructionHandler
{ {
@ -23,7 +23,7 @@ public class FsubrpStiStHandler : InstructionHandler
/// <returns>True if this handler can decode the opcode</returns> /// <returns>True if this handler can decode the opcode</returns>
public override bool CanHandle(byte opcode) public override bool CanHandle(byte opcode)
{ {
// FSUBRP ST(i), ST is DE E8-EF // FSUBP ST(i), ST is DE E8-EF
if (opcode != 0xDE) return false; if (opcode != 0xDE) return false;
if (!Decoder.CanReadByte()) if (!Decoder.CanReadByte())
@ -39,7 +39,7 @@ public class FsubrpStiStHandler : InstructionHandler
} }
/// <summary> /// <summary>
/// Decodes a FSUBRP ST(i), ST instruction /// Decodes a FSUBP ST(i), ST instruction
/// </summary> /// </summary>
/// <param name="opcode">The opcode of the instruction</param> /// <param name="opcode">The opcode of the instruction</param>
/// <param name="instruction">The instruction object to populate</param> /// <param name="instruction">The instruction object to populate</param>
@ -55,7 +55,7 @@ public class FsubrpStiStHandler : InstructionHandler
var stIndex = (FpuRegisterIndex)(Decoder.ReadByte() - 0xE8); var stIndex = (FpuRegisterIndex)(Decoder.ReadByte() - 0xE8);
// Set the instruction type // Set the instruction type
instruction.Type = InstructionType.Fsubrp; instruction.Type = InstructionType.Fsubp;
// Create the FPU register operands // Create the FPU register operands
var stiOperand = OperandFactory.CreateFPURegisterOperand(stIndex); var stiOperand = OperandFactory.CreateFPURegisterOperand(stIndex);

10
X86Disassembler/X86/Handlers/InstructionHandlerFactory.cs
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@ -470,7 +470,7 @@ public class InstructionHandlerFactory
_handlers.Add(new FloatingPoint.Arithmetic.FaddStiStHandler(_decoder)); // FADD ST(i), ST (DC C0-C7) _handlers.Add(new FloatingPoint.Arithmetic.FaddStiStHandler(_decoder)); // FADD ST(i), ST (DC C0-C7)
_handlers.Add(new FloatingPoint.Arithmetic.FmulStiStHandler(_decoder)); // FMUL ST(i), ST (DC C8-CF) _handlers.Add(new FloatingPoint.Arithmetic.FmulStiStHandler(_decoder)); // FMUL ST(i), ST (DC C8-CF)
_handlers.Add(new FloatingPoint.Comparison.FcomRegisterHandler(_decoder)); // FCOM ST(i), ST(0) (DC D0-D7) _handlers.Add(new FloatingPoint.Comparison.FcomRegisterHandler(_decoder)); // FCOM ST(i), ST(0) (DC D0-D7)
_handlers.Add(new FloatingPoint.Arithmetic.FsubStiStHandler(_decoder)); // FSUB ST(i), ST (DC E0-E7) _handlers.Add(new FloatingPoint.Arithmetic.FsubStiStHandler(_decoder)); // FSUBR ST(i), ST (DC E0-E7)
_handlers.Add(new FloatingPoint.Arithmetic.FsubrStiStHandler(_decoder)); // FSUB ST(i), ST (DC E8-EF) _handlers.Add(new FloatingPoint.Arithmetic.FsubrStiStHandler(_decoder)); // FSUB ST(i), ST (DC E8-EF)
_handlers.Add(new FloatingPoint.Arithmetic.FdivrStiStHandler(_decoder)); // FDIVR ST(i), ST (DC F0-F7) _handlers.Add(new FloatingPoint.Arithmetic.FdivrStiStHandler(_decoder)); // FDIVR ST(i), ST (DC F0-F7)
_handlers.Add(new FloatingPoint.Arithmetic.FdivStiStHandler(_decoder)); // FDIV ST(i), ST (DC F8-FF) _handlers.Add(new FloatingPoint.Arithmetic.FdivStiStHandler(_decoder)); // FDIV ST(i), ST (DC F8-FF)
@ -502,10 +502,10 @@ public class InstructionHandlerFactory
_handlers.Add(new FloatingPoint.Arithmetic.FaddpStiStHandler(_decoder)); // FADDP ST(i), ST (DE C0-C7) _handlers.Add(new FloatingPoint.Arithmetic.FaddpStiStHandler(_decoder)); // FADDP ST(i), ST (DE C0-C7)
_handlers.Add(new FloatingPoint.Arithmetic.FmulpStiStHandler(_decoder)); // FMULP ST(i), ST (DE C8-CF) _handlers.Add(new FloatingPoint.Arithmetic.FmulpStiStHandler(_decoder)); // FMULP ST(i), ST (DE C8-CF)
_handlers.Add(new FloatingPoint.Comparison.FcomppHandler(_decoder)); // FCOMPP (DE D9) _handlers.Add(new FloatingPoint.Comparison.FcomppHandler(_decoder)); // FCOMPP (DE D9)
_handlers.Add(new FloatingPoint.Arithmetic.FsubpStiStHandler(_decoder)); // FSUBP ST(i), ST (DE E0-E7) _handlers.Add(new FloatingPoint.Arithmetic.FsubpStiStHandler(_decoder)); // FSUBRP ST(i), ST (DE E0-E7)
_handlers.Add(new FloatingPoint.Arithmetic.FsubrpStiStHandler(_decoder)); // FSUBRP ST(i), ST (DE E8-EF) _handlers.Add(new FloatingPoint.Arithmetic.FsubrpStiStHandler(_decoder)); // FSUBP ST(i), ST (DE E8-EF)
_handlers.Add(new FloatingPoint.Arithmetic.FdivrpStiStHandler(_decoder)); // FDIVP ST(i), ST (DE F0-F7) _handlers.Add(new FloatingPoint.Arithmetic.FdivrpStiStHandler(_decoder)); // FDIVRP ST(i), ST (DE F0-F7)
_handlers.Add(new FloatingPoint.Arithmetic.FdivpStiStHandler(_decoder)); // FDIVRP ST(i), ST (DE F8-FF) _handlers.Add(new FloatingPoint.Arithmetic.FdivpStiStHandler(_decoder)); // FDIVP ST(i), ST (DE F8-FF)
// DF opcode handlers (memory operations) // DF opcode handlers (memory operations)
_handlers.Add(new FloatingPoint.LoadStore.FildInt16Handler(_decoder)); // FILD int16 (DF /0) _handlers.Add(new FloatingPoint.LoadStore.FildInt16Handler(_decoder)); // FILD int16 (DF /0)