// 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);
/* 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();
header = (Multiboot.Header *)Multiboot.GetMBIAddress();
modeinfo = (Core.VBE.ModeInfo *)header->vbeModeInfo;
controllerinfo = (Core.VBE.ControllerInfo *)header->vbeControlInfo;
// Managed_Memory_System.ManagedMemory.Initialize();
// Managed_Memory_System.ManagedMemory.SetUpMemoryArea();
}
public void TestMultiboot()
{
Assert.IsTrue(Multiboot.GetMBIAddress() != 0, $"Multiboot.GetMBIAddress works {Multiboot.GetMBIAddress()}");
}