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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/Or/OrRm8R8Handler.cs
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@ -5,9 +5,6 @@ namespace X86Disassembler.X86.Handlers.Or;
/// </summary>
public class OrRm8R8Handler : InstructionHandler
{
// 8-bit register names
private static readonly string[] RegisterNames8 = { "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh" };
/// <summary>
/// Initializes a new instance of the OrRm8R8Handler class
/// </summary>
@ -59,17 +56,10 @@ public class OrRm8R8Handler : InstructionHandler
return true;
}
// Proceed with normal ModR/M decoding
position++;
Decoder.SetPosition(position);
// Extract fields from ModR/M byte
byte mod = (byte)((modRM & 0xC0) >> 6); // Top 2 bits
byte reg = (byte)((modRM & 0x38) >> 3); // Middle 3 bits
byte rm = (byte)(modRM & 0x07); // Bottom 3 bits
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM();
// The register operand is in the reg field (8-bit register)
string regOperand = RegisterNames8[reg];
string regOperand = ModRMDecoder.GetRegisterName(reg, 8);
// Handle the r/m operand based on mod field
string rmOperand;
@ -77,16 +67,12 @@ public class OrRm8R8Handler : InstructionHandler
if (mod == 3) // Register-to-register
{
// Direct register addressing
rmOperand = RegisterNames8[rm];
rmOperand = ModRMDecoder.GetRegisterName(rm, 8);
}
else // Memory addressing
{
// Use ModRMDecoder for memory addressing, but we need to adjust for 8-bit operands
var modRMDecoder = new ModRMDecoder(CodeBuffer, Decoder, Length);
string memOperand = modRMDecoder.DecodeModRM(mod, rm, false); // false = not 64-bit
// Replace "dword ptr" with "byte ptr" for 8-bit operands
rmOperand = memOperand.Replace("dword ptr", "byte ptr");
rmOperand = destOperand.Replace("dword ptr", "byte ptr");
}
// Set the operands (r/m8, r8 format)