/source2/VSIP/Cosmos.VS.Debug/RegistersUC.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;



namespace Cosmos.VS.Debug {

  public partial class RegistersUC : UserControl {

    public RegistersUC() {

      InitializeComponent();

    }



    protected void UpdateRegisters(byte[] aData, int aOffset, Label a32, Label a16, Label a8Hi, Label a8Lo) {

      byte x8Lo = aData[aOffset];

      byte x8Hi = aData[aOffset + 1];

      SetLabel(a8Lo, x8Lo.ToString("X2"));

      SetLabel(a8Hi, x8Hi.ToString("X2"));

      SetLabel(a16, x8Hi.ToString("X2") + x8Lo.ToString("X2"));

      UpdateRegister32(aData, aOffset, a32);

    }



    protected void UpdateRegister32(byte[] aData, int aOffset, Label a32) {

      UInt32 x32 = (UInt32)

        (aData[aOffset + 3] << 24 |

        aData[aOffset + 2] << 16 |

        aData[aOffset + 1] << 8 |

        aData[aOffset]);

      SetLabel(a32, x32.ToString("X8"));

    }



    protected void SetLabel(Label aLabel, string aContent) {

      string xOldContent = (string)aLabel.Content;

      aLabel.Content = aContent;

      aLabel.Foreground = (xOldContent == aContent) ? Brushes.Black : Brushes.Red;

    }



    public void Update(byte[] aData) {

      //Push All

      //  Temp = (ESP);

      //  Push(EAX); 28

      //  Push(ECX); 24

      //  Push(EDX); 20

      //  Push(EBX); 16

      //  Push(Temp); 12 // Have to get from another source, ESP is already in DS when we pushall

      //  Push(EBP); 8

      //  Push(ESI); 4

      //  Push(EDI); 0

      // We get them from bottom up, so we receive them in reverse order as shown above. That is 0-3 is EDI.

      //

      // Additional ones sent manually (at end, not from stack)

      // EIP 32

      //

      UpdateRegisters(aData, 28, lablEAX, lablAX, lablAH, lablAL);

      UpdateRegisters(aData, 16, lablEBX, lablBX, lablBH, lablBL);

      UpdateRegisters(aData, 24, lablECX, lablCX, lablCH, lablCL);

      UpdateRegisters(aData, 20, lablEDX, lablDX, lablDH, lablDL);

      //TODO: ESP

      UpdateRegister32(aData, 8, lablEBP);

      UpdateRegister32(aData, 4, lablESI);

      UpdateRegister32(aData, 0, lablEDI);

      UpdateRegister32(aData, 32, lablEIP);

      //TODO: Flags

    }



  }

}