/// <summary>
/// Interrupts the handler.
/// </summary>
/// <param name="edi">The edi.</param>
/// <param name="esi">The esi.</param>
/// <param name="ebp">The ebp.</param>
/// <param name="esp">The esp.</param>
/// <param name="ebx">The ebx.</param>
/// <param name="edx">The edx.</param>
/// <param name="ecx">The ecx.</param>
/// <param name="eax">The eax.</param>
/// <param name="interrupt">The interrupt.</param>
/// <param name="errorcode">The errorcode.</param>
private static void InterruptHandler(uint edi, uint esi, uint ebp, uint esp, uint ebx, uint edx, uint ecx, uint eax, uint interrupt, uint errorCode)
{
uint c = Screen.Column;
uint r = Screen.Row;
byte col = Screen.Color;
Screen.Column = 30;
Screen.Row = 0;
Screen.Color = 3;
_counter++;
Screen.Write(_counter, 10, 8);
Screen.Write(':');
Screen.Write(interrupt, 16, 2);
if (interrupt == 14)
{
// Page Fault!
PageFaultHandler.Fault(errorCode);
}
if (interrupt == 0x20)
{
// Timer Interrupt! Switch Tasks!
}
else
{
Screen.Write(':');
Screen.Write(_counter, 10, 8);
Screen.Write(':');
Screen.Write(interrupt, 16, 2);
Screen.Write('-');
Screen.Write(errorCode, 16, 2);
if (interrupt == 0x21)
{
byte scancode = Keyboard.ReadScanCode();
Screen.Write('-');
Screen.Write(scancode, 16, 2);
}
}
Screen.Column = c;
Screen.Row = r;
Screen.Color = col;
PIC.SendEndOfInterrupt((byte)interrupt);
}
/// <summary>
/// Interrupts the handler.
/// </summary>
/// <param name="edi">The edi.</param>
/// <param name="esi">The esi.</param>
/// <param name="ebp">The ebp.</param>
/// <param name="esp">The esp.</param>
/// <param name="ebx">The ebx.</param>
/// <param name="edx">The edx.</param>
/// <param name="ecx">The ecx.</param>
/// <param name="eax">The eax.</param>
/// <param name="interrupt">The interrupt.</param>
/// <param name="errorCode">The error code.</param>
private static void ProcessInterrupt(uint edi, uint esi, uint ebp, uint esp, uint ebx, uint edx, uint ecx, uint eax, uint interrupt, uint errorCode, uint eip, uint cs, uint eflags)
{
DebugClient.Process();
switch (interrupt)
{
case 0:
Error(ebp, eip, "Divide Error");
break;
case 4:
Error(ebp, eip, "Arithmetic Overflow Exception");
break;
case 5:
Error(ebp, eip, "Bound Check Error");
break;
case 6:
Error(ebp, eip, "Invalid Opcode");
break;
case 7:
Error(ebp, eip, "Coprocessor Not Available");
break;
case 8:
//TODO: Analyze the double fault
Error(ebp, eip, "Double Fault");
break;
case 9:
Error(ebp, eip, "Coprocessor Segment Overrun");
break;
case 10:
Error(ebp, eip, "Invalid TSS");
break;
case 11:
Error(ebp, eip, "Segment Not Present");
break;
case 12:
Error(ebp, eip, "Stack Exception");
break;
case 13:
Error(ebp, eip, "General Protection Exception");
break;
case 14:
// Page Fault!
var cr2 = Native.GetCR2() >> 5;
if (cr2 < 0x1000)
{
Error(ebp, eip, "Null Pointer Exception");
break;
}
PageFaultHandler.Fault(errorCode);
break;
case 16:
Error(ebp, eip, "Coprocessor Error");
break;
case 19:
Error(ebp, eip, "SIMD Floating-Point Exception");
break;
default:
if (interruptHandler != null)
{
interruptHandler(interrupt, errorCode);
}
break;
}
PIC.SendEndOfInterrupt(interrupt);
}