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Code Issues Releases Activity

nice big refactor

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This commit is contained in:
bird_egop
2025-04-13 23:06:52 +03:00
parent 59df064ca4
commit 11a2cfada4
92 changed files with 981 additions and 1509 deletions
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18
X86Disassembler/X86/Handlers/Push/PushImm32Handler.cs
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@ -11,11 +11,11 @@ public class PushImm32Handler : InstructionHandler
/// <param name="codeBuffer">The buffer containing the code to decode</param>
/// <param name="decoder">The instruction decoder that owns this handler</param>
/// <param name="length">The length of the buffer</param>
public PushImm32Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
public PushImm32Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
{
}
/// <summary>
/// Checks if this handler can decode the given opcode
/// </summary>
@ -25,7 +25,7 @@ public class PushImm32Handler : InstructionHandler
{
return opcode == 0x68;
}
/// <summary>
/// Decodes a PUSH imm32 instruction
/// </summary>
@ -36,17 +36,13 @@ public class PushImm32Handler : InstructionHandler
{
// Set the mnemonic
instruction.Mnemonic = "push";
// Read the immediate value
uint imm32 = Decoder.ReadUInt32();
if (Decoder.GetPosition() > Length)
{
return false;
}
// Set the operands with 8-digit padding to match test expectations
instruction.Operands = $"0x{imm32:X8}";
return true;
}
}
}

18
X86Disassembler/X86/Handlers/Push/PushImm8Handler.cs
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@ -11,11 +11,11 @@ public class PushImm8Handler : InstructionHandler
/// <param name="codeBuffer">The buffer containing the code to decode</param>
/// <param name="decoder">The instruction decoder that owns this handler</param>
/// <param name="length">The length of the buffer</param>
public PushImm8Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
public PushImm8Handler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
{
}
/// <summary>
/// Checks if this handler can decode the given opcode
/// </summary>
@ -25,7 +25,7 @@ public class PushImm8Handler : InstructionHandler
{
return opcode == 0x6A;
}
/// <summary>
/// Decodes a PUSH imm8 instruction
/// </summary>
@ -36,17 +36,13 @@ public class PushImm8Handler : InstructionHandler
{
// Set the mnemonic
instruction.Mnemonic = "push";
// Read the immediate value
byte imm8 = Decoder.ReadByte();
if (Decoder.GetPosition() > Length)
{
return false;
}
// Set the operands
instruction.Operands = $"0x{imm8:X2}";
return true;
}
}
}

16
X86Disassembler/X86/Handlers/Push/PushRegHandler.cs
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@ -11,11 +11,11 @@ public class PushRegHandler : InstructionHandler
/// <param name="codeBuffer">The buffer containing the code to decode</param>
/// <param name="decoder">The instruction decoder that owns this handler</param>
/// <param name="length">The length of the buffer</param>
public PushRegHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
public PushRegHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
: base(codeBuffer, decoder, length)
{
}
/// <summary>
/// Checks if this handler can decode the given opcode
/// </summary>
@ -25,7 +25,7 @@ public class PushRegHandler : InstructionHandler
{
return opcode >= 0x50 && opcode <= 0x57;
}
/// <summary>
/// Decodes a PUSH r32 instruction
/// </summary>
@ -36,14 +36,14 @@ public class PushRegHandler : InstructionHandler
{
// Set the mnemonic
instruction.Mnemonic = "push";
// Register is encoded in the low 3 bits of the opcode
int reg = opcode & 0x07;
RegisterIndex reg = (RegisterIndex) (opcode & 0x07);
string regName = ModRMDecoder.GetRegisterName(reg, 32);
// Set the operands
instruction.Operands = regName;
return true;
}
}
}

15
X86Disassembler/X86/Handlers/Push/PushRm32Handler.cs
View File

@ -42,16 +42,10 @@ public class PushRm32Handler : InstructionHandler
}
// Read the ModR/M byte
byte modRM = CodeBuffer[position++];
Decoder.SetPosition(position);
// Extract the fields from the ModR/M byte
byte mod = (byte)((modRM & 0xC0) >> 6);
byte reg = (byte)((modRM & 0x38) >> 3);
byte rm = (byte)(modRM & 0x07);
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM();
// PUSH r/m32 is encoded as FF /6
if (reg != 6)
if (reg != RegisterIndex.Sp)
{
return false;
}
@ -62,12 +56,11 @@ public class PushRm32Handler : InstructionHandler
// For memory operands, set the operand
if (mod != 3) // Memory operand
{
string operand = ModRMDecoder.DecodeModRM(mod, rm, false);
instruction.Operands = operand;
instruction.Operands = destOperand;
}
else // Register operand
{
string rmName = GetRegister32(rm);
string rmName = ModRMDecoder.GetRegisterName(rm, 32);
instruction.Operands = rmName;
}