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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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22
X86Disassembler/X86/Handlers/And/AndImmToRm32Handler.cs
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@ -56,16 +56,7 @@ public class AndImmToRm32Handler : 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); // Should be 4 for AND
byte rm = (byte)(modRM & 0x07);
// Decode the destination operand
string destOperand = ModRMDecoder.DecodeModRM(mod, rm, false);
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM();
// Read the immediate value
if (position + 3 >= Length)
@ -74,18 +65,11 @@ public class AndImmToRm32Handler : InstructionHandler
}
// Read the immediate value in little-endian format
byte b0 = CodeBuffer[position];
byte b1 = CodeBuffer[position + 1];
byte b2 = CodeBuffer[position + 2];
byte b3 = CodeBuffer[position + 3];
var imm = Decoder.ReadUInt32();
// Format the immediate value as expected by the tests (0x12345678)
// Note: The bytes are reversed to match the expected format in the tests
string immStr = $"0x{b3:X2}{b2:X2}{b1:X2}{b0:X2}";
// Advance the position past the immediate value
position += 4;
Decoder.SetPosition(position);
string immStr = $"0x{imm:X8}";
// Set the operands
instruction.Operands = $"{destOperand}, {immStr}";

4
X86Disassembler/X86/Handlers/And/AndImmToRm32SignExtendedHandler.cs
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@ -76,9 +76,7 @@ public class AndImmToRm32SignExtendedHandler : InstructionHandler
}
// Read and sign-extend the immediate value
byte imm8 = Decoder.ReadByte();
int signExtended = (sbyte)imm8;
uint imm32 = (uint)signExtended;
uint imm32 = (uint)(sbyte)Decoder.ReadByte();
// Set operands
if (mod == 3)