public static void Init()
{
allThreads = new List <ThreadData>();
allThreads.Add(new ThreadData());
Timer.Init();
INTs.SetIrqHandler(0, SwitchTast);
}
public static void Init()
{
allThreads = new List <ThreadData>();
CreateNewThread(0);
Timer.Init();
INTs.SetIrqHandler(0, SwitchTast);
}
private void HandleIRQ(ref INTs.IRQContext aContext)
{
byte xScanCode = IO.Port60.Byte;
bool xReleased = (xScanCode & 0x80) == 0x80;
if (xReleased)
{
xScanCode = (byte)(xScanCode ^ 0x80);
}
HandleScancode(xScanCode, xReleased);
}
// Bootstrap is a class designed only to get the essentials done.
// ie the stuff needed to "pre boot". Do only the very minimal here.
// IDT, PIC, and Float
// Note: This is changing a bit GDT (already) and IDT are moving to a real preboot area.
public static void Init()
{
// Drag this stuff in to the compiler manually until we add the always include attrib
INTs.Dummy();
PIC = new PIC();
CPU.UpdateIDT(true);
CPU.InitFloat();
// Managed_Memory_System.ManagedMemory.Initialize();
// Managed_Memory_System.ManagedMemory.SetUpMemoryArea();
}
// Bootstrap is a class designed only to get the essentials done.
// ie the stuff needed to "pre boot". Do only the very minimal here.
// IDT, PIC, and Float
// Note: This is changing a bit GDT (already) and IDT are moving to a real preboot area.
public static void Init()
{
// Drag this stuff in to the compiler manually until we add the always include attrib
INTs.Dummy();
PIC = new PIC();
CPU.UpdateIDT(true);
CPU.InitFloat();
// Not sure if this is necessary, heap is already used before we get here
// and it seems to be fully (or at least partially) self initializing
Heap.Initialize();
// Managed_Memory_System.ManagedMemory.Initialize();
// Managed_Memory_System.ManagedMemory.SetUpMemoryArea();
}
// Bootstrap is a class designed only to get the essentials done.
// ie the stuff needed to "pre boot". Do only the very minimal here.
// IDT, PIC, and Float
// Note: This is changing a bit GDT (already) and IDT are moving to a real preboot area.
/// <summary>
/// Init the boot strap. Invoke pre-boot methods.
/// </summary>
public static void Init()
{
// Drag this stuff in to the compiler manually until we add the always include attrib
Multiboot2.Init();
INTs.Dummy();
PIC = new PIC();
CPU.UpdateIDT(true);
/* TODO check using CPUID that SSE2 is supported */
CPU.InitSSE();
/*
* We liked to use SSE for all floating point operation and end to mix SSE / x87 in Cosmos code
* but sadly in x86 this resulte impossible as Intel not implemented some needed instruction (for example conversion
* for long to double) so - in some rare cases - x87 continue to be used. I hope passing to the x32 or x64 IA will solve
* definively this problem.
*/
CPU.InitFloat();
}
protected void HandleNetworkInterrupt(ref INTs.IRQContext aContext)
{
UInt32 cur_status = StatusRegister;
//Console.WriteLine("AMD PCNet IRQ raised!");
if ((cur_status & 0x100) != 0)
{
mInitDone = true;
}
if ((cur_status & 0x200) != 0)
{
if (mTransmitBuffer.Count > 0)
{
byte[] data = mTransmitBuffer.Peek();
if (SendBytes(ref data) == true)
{
mTransmitBuffer.Dequeue();
}
}
}
if ((cur_status & 0x400) != 0)
{
ReadRawData();
}
StatusRegister = cur_status;
Cosmos.Core.Global.PIC.EoiSlave();
}
/// <summary>
/// This is the default mouse handling code.
/// </summary>
/// <param name="context"></param>
public void HandleMouse(ref INTs.IRQContext context)
{
switch (mouse_cycle)
{
case 0:
mouse_byte[0] = p60.Byte;
if ((mouse_byte[0] & 0x8) == 0x8)
mouse_cycle++;
break;
case 1:
mouse_byte[1] = p60.Byte;
mouse_cycle++;
break;
case 2:
mouse_byte[2] = p60.Byte;
mouse_cycle = 0;
if ((mouse_byte[0] & 0x10) == 0x10)
X -= mouse_byte[1] ^ 0xff;
else
X += mouse_byte[1];
if ((mouse_byte[0] & 0x20) == 0x20)
Y += mouse_byte[2] ^ 0xff;
else
Y -= mouse_byte[2];
if (X < 0)
X = 0;
else if (X > 319)
X = 319;
if (Y < 0)
Y = 0;
else if (Y > 199)
Y = 199;
Buttons = (MouseState)(mouse_byte[0] & 0x7);
break;
}
}
public void HandleMouse(ref INTs.IRQContext context)
{
switch (mouse_cycle)
{
case 0:
mouse_byte[0] = Read();
//Bit 3 of byte 0 is 1, then we have a good package
if ((mouse_byte[0] & 0x8) == 0x8)
mouse_cycle++;
break;
case 1:
mouse_byte[1] = Read();
mouse_cycle++;
break;
case 2:
mouse_byte[2] = Read();
mouse_cycle = 0;
if ((mouse_byte[0] & 0x10) == 0x10)
X -= (mouse_byte[1] ^ 0xff);
else
X += mouse_byte[1];
if ((mouse_byte[0] & 0x20) == 0x20)
Y += (mouse_byte[2] ^ 0xff);
else
Y -= mouse_byte[2];
if (X < 0)
X = 0;
else if (X > ScreenWidth - 1)
X = (int)ScreenWidth - 1;
if (Y < 0)
Y = 0;
else if (Y > ScreenHeight - 1)
Y = (int)ScreenHeight - 1;
Buttons = (MouseState)(mouse_byte[0] & 0x7);
break;
}
}