/// <summary>
/// Freezes the system.
/// Usually used after a crash to display information after which the user
/// can turn of the machine.
/// </summary>
public static void Freeze()
{
// Disable interrupts
Asm.CLI();
// Halt the system
Asm.HLT();
}
/// <summary>
/// Puts the system into sleep mode.
/// </summary>
public static void Sleep()
{
// TODO: eventually implement this..
// Disable interrupts
Asm.CLI();
// Halt the system
Asm.HLT();
}
/// <summary>
/// Powers down the system.
/// </summary>
public static void PowerOff()
{
// TODO: turn off system here..
// Disable interrupts
Asm.CLI();
// Halt the system
Asm.HLT();
}
public static byte Read(Address address)
{
Asm.CLI();
IO.WriteByte(IO.Port.RTC_CommandPort, (byte)(0x80 | (byte)address));
Asm.NOP();
Asm.NOP();
Asm.NOP();
byte result = IO.ReadByte(IO.Port.RTC_DataPort);
Asm.STI();
return(result);
}
/*
* private static uint ReadCR0()
* {
* uint val = 0;
*
* Asm.PUSH (R32.EAX);
* Asm.MOV (R32.EAX, CR.CR0);
* Asm.MOV (&val, R32.EAX);
* Asm.POP (R32.EAX);
*
* return val;
* }
*
* private static void *ReadCR3()
* {
* uint val = 0;
*
* Asm.PUSH (R32.EAX);
* Asm.MOV (R32.EAX, CR.CR3);
* Asm.MOV (&val, R32.EAX);
* Asm.POP (R32.EAX);
*
* return (void*)val;
* }
*
* private unsafe static void WriteCR0 (uint value)
* {
* Asm.PUSH (R32.EAX);
* Asm.MOV (R32.EAX, &value);
* Asm.MOV (CR.CR0, R32.EAX);
* Asm.POP (R32.EAX);
* }
*
* private static void WriteCR3 (uint ptr)
* {
* Asm.PUSH (R32.EAX);
* Asm.MOV (R32.EAX, &ptr);
* Asm.MOV (CR.CR3, R32.EAX);
* Asm.POP (R32.EAX);
* }
*/
private static void SetDirectory(uint page)
{
Asm.CLI();
Asm.PUSH(R32.EAX);
Asm.PUSH(R32.ECX);
Asm.MOV(R32.EAX, &page);
Asm.MOV(R32.ECX, CR.CR0);
Asm.OR(R32.ECX, (uint)CR0Flags.PG);
Asm.MOV(CR.CR3, R32.EAX);
Asm.MOV(CR.CR0, R32.ECX);
Asm.POP(R32.ECX);
Asm.POP(R32.EAX);
Asm.STI();
}
/// <summary>
/// Reboot the system.
/// We can reset the system, oddly enough, through the keyboard IO port
/// </summary>
public static void Reboot()
{
// Disable interrupts
Asm.CLI();
// Clear all keyboard buffers (output and command buffers)
byte temp;
do
{
temp = IO.ReadByte(IO.Port.KB_controller_commands);
if ((temp & 0x01) != 0)
{
IO.ReadByte(IO.Port.KB_data_port); // Empty keyboard buffer
}
} while ((temp & 0x02) != 0);
// Reset the system
IO.WriteByte(IO.Port.KB_controller_commands, 0xFE);
// Halt the system (in case reset didn't work)
Asm.HLT();
}
/// <summary>
/// Starts the barrier, no other threads can run untill Exit is called
/// </summary>
/// <remarks>
/// This function should be made "inline" by the AOT
/// </remarks>
public static void Enter()
{
Asm.CLI();
}
internal Processor(uint _index)
{
Asm.CLI();
index = _index;
bool haveCPU = HaveCPUID();
if (!haveCPU)
{
archType = ProcessorType.IA32;
vendorName = CString8.Copy("Unknown");
brandName = CString8.Copy("Unknown");
familyName = CString8.Copy("Unknown");
modelName = CString8.Copy("Unknown");
}
if (haveCPU)
{
UInt32 stepping;
UInt32 family;
UInt32 model;
textBuffer = StringBuilder.CREATE((uint)(20));
vendorName = GetVendorName();
if (vendorName->Compare("GenuineIntel", 12) == 0)
{
SetIntel();
}
else
if (vendorName->Compare("AuthenticAMD", 12) == 0)
{
SetAMD();
}
else
{
brandName = GetBrandName();
familyName = CString8.Copy("Not implemented yet");
modelName = CString8.Copy("Not implemented yet");
}
GetProcessorInfo(out stepping, out family, out model, out featureFlags);
if (0 != (featureFlags & ProcessorFeatureFlags.IA64))
{
archType = ProcessorType.IA64;
}
else
{
archType = ProcessorType.IA32;
}
ulong flags = ((ulong)featureFlags) & ((ulong)ProcessorFeatureFlags.ReservedFlagsMask);
uint featureCount = MemoryUtil.BitCount(flags);
features = new ProcessorFeature[featureCount];
featureCount = 0;
// TODO: this could be improved upon if we had:
// constructor support
// enum.ToString support
// etc.
if (0 != (flags & (ulong)ProcessorFeatureFlags.FPU))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("FPU"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.VME))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("VME"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.DE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("DE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PSE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PSE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.TSC))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("TSC"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MSR))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MSR"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PAE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PAE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MCE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MCE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.CX8))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("CX8"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.APIC))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("APIC"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SEP))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SEP"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MTRR))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MTRR"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PGE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PGE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MCA))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MCA"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.CMOV))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("CMOV"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PAT))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PAT"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PSE36))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PSE36"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PSN))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PSN"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.CLFSH))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("CLFSH"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.DTES))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("DTES"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.ACPI))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("ACPI"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MMX))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MMX"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.FXSR))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("FXSR"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSE2))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSE2"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SS))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SS"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.HTT))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("HTT"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.TM1))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("TM1"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.IA64))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("IA64"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PBE))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PBE"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSE3))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSE3"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.DTSE64))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("DTSE64"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.MON))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("MON"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.DSCPL))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("DSCPL"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.VMX))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("VMX"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SMX))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SMX"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.EST))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("EST"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.TM2))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("TM2"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSSE3))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSSE3"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.CID))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("CID"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.CX16))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("CX16"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.ETPRD))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("ETPRD"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.PDCM))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("PDCM"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.DCA))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("DCA"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSE4_1))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSE4.1"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.SSE4_2))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("SSE4.2"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.X2APIC))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("X2APIC"); featureCount++;
}
if (0 != (flags & (ulong)ProcessorFeatureFlags.POPCNT))
{
features[featureCount] = new ProcessorFeature(); features[featureCount].FeatureName = ("POPCNT"); featureCount++;
}
}
Asm.STI();
}