Работа с железом

Code:

{$ifndef ver80} // так как будем использовать 32-битный регистр

   function 3DNowSupport: Boolean; assembler;

   asm

     push  ebx

     mov   @Result, True

     mov   eax, $80000000

     dw    $A20F           

     cmp   eax, $80000000

     jbe   @NOEXTENDED    // 3DNow не поддерживается

     mov   eax, $80000001

     dw    $A20F           

     test  edx, $80000000

     jnz    @EXIT          // 3DNow поддерживается

     @NOEXTENDED:

     mov  @Result, False

     @EXIT:

     pop ebx

   end;

   {$endif}

Code:

function GettingProcNum: string; 

var

Struc:    _SYSTEM_INFO;

begin

GetSystemInfo(Struc);

Result:=IntToStr(Struc.dwNumberOfProcessors);

end;

Code:

const

SystemBasicInformation = 0;

SystemPerformanceInformation = 2;

SystemTimeInformation = 3;

type

TPDWord = ^DWORD;

TSystem_Basic_Information = packed record

   dwUnknown1: DWORD;

   uKeMaximumIncrement: ULONG;

   uPageSize: ULONG;

   uMmNumberOfPhysicalPages: ULONG;

   uMmLowestPhysicalPage: ULONG;

   uMmHighestPhysicalPage: ULONG;

   uAllocationGranularity: ULONG;

   pLowestUserAddress: Pointer;

   pMmHighestUserAddress: Pointer;

   uKeActiveProcessors: ULONG;

   bKeNumberProcessors: byte;

   bUnknown2: byte;

   wUnknown3: word;

end;

type

TSystem_Performance_Information = packed record

   liIdleTime: LARGE_INTEGER; {LARGE_INTEGER}

   dwSpare: array[0..75] of DWORD;

end;

type

TSystem_Time_Information = packed record

   liKeBootTime: LARGE_INTEGER;

   liKeSystemTime: LARGE_INTEGER;

   liExpTimeZoneBias: LARGE_INTEGER;

   uCurrentTimeZoneId: ULONG;

   dwReserved: DWORD;

end;

var

NtQuerySystemInformation: function(infoClass: DWORD;

   buffer: Pointer;

   bufSize: DWORD;

   returnSize: TPDword): DWORD; stdcall = nil;

liOldIdleTime: LARGE_INTEGER = ();

liOldSystemTime: LARGE_INTEGER = ();

function Li2Double(x: LARGE_INTEGER): Double;

begin

Result := x.HighPart * 4.294967296E9 + x.LowPart

end;

procedure GetCPUUsage;

var

SysBaseInfo: TSystem_Basic_Information;

SysPerfInfo: TSystem_Performance_Information;

SysTimeInfo: TSystem_Time_Information;

status: Longint; {long}

dbSystemTime: Double;

dbIdleTime: Double;

bLoopAborted : boolean;

begin

if @NtQuerySystemInformation = nil then

   NtQuerySystemInformation := GetProcAddress(GetModuleHandle('ntdll.dll'),

     'NtQuerySystemInformation');

// get number of processors in the system

status := NtQuerySystemInformation(SystemBasicInformation, @SysBaseInfo, SizeOf(SysBaseInfo), nil);

if status <> 0 then Exit;

// Show some information

with SysBaseInfo do

begin

     ShowMessage(

     Format('uKeMaximumIncrement: %d'#13'uPageSize: %d'#13+

     'uMmNumberOfPhysicalPages: %d'+#13+'uMmLowestPhysicalPage: %d'+#13+

     'uMmHighestPhysicalPage: %d'+#13+'uAllocationGranularity: %d'#13+

     'uKeActiveProcessors: %d'#13'bKeNumberProcessors: %d',

     [uKeMaximumIncrement, uPageSize, uMmNumberOfPhysicalPages,

     uMmLowestPhysicalPage, uMmHighestPhysicalPage, uAllocationGranularity,

     uKeActiveProcessors, bKeNumberProcessors]));

end;

bLoopAborted := False;

while not bLoopAborted do

begin

   // get new system time

   status := NtQuerySystemInformation(SystemTimeInformation, @SysTimeInfo, SizeOf(SysTimeInfo), 0);

   if status <> 0 then Exit;

   // get new CPU's idle time

   status := NtQuerySystemInformation(SystemPerformanceInformation, @SysPerfInfo, SizeOf(SysPerfInfo), nil);

   if status <> 0 then Exit;

   // if it's a first call - skip it

   if (liOldIdleTime.QuadPart <> 0) then

   begin

     // CurrentValue = NewValue - OldValue

     dbIdleTime := Li2Double(SysPerfInfo.liIdleTime) - Li2Double(liOldIdleTime);

     dbSystemTime := Li2Double(SysTimeInfo.liKeSystemTime) - Li2Double(liOldSystemTime);

     // CurrentCpuIdle = IdleTime / SystemTime

     dbIdleTime := dbIdleTime / dbSystemTime;

     // CurrentCpuUsage% = 100 - (CurrentCpuIdle * 100) / NumberOfProcessors

     dbIdleTime := 100.0 - dbIdleTime * 100.0 / SysBaseInfo.bKeNumberProcessors + 0.5;

     // Show Percentage

     Form1.Label1.Caption := FormatFloat('CPU Usage: 0.0 %',dbIdleTime);

     Application.ProcessMessages;

     // Abort if user pressed ESC or Application is terminated

     bLoopAborted := (GetKeyState(VK_ESCAPE) and 128 = 128) or Application.Terminated;

   end;

   // store new CPU's idle and system time

   liOldIdleTime := SysPerfInfo.liIdleTime;

   liOldSystemTime := SysTimeInfo.liKeSystemTime;

   // wait one second

   Sleep(1000);

end;

end;

procedure TForm1.Button1Click(Sender: TObject);

begin

GetCPUUsage

end;

Code:

function GettingProcLevel: string; 

var

Struc:    _SYSTEM_INFO;

begin

GetSystemInfo(Struc);

Case Struc.wProcessorLevel of

   3:  Result:='Intel 80386';

   4:  Result:='Intel 80486';

   5:  Result:='Intel Pentium';

   6:  Result:='Intel Pentium II or better';

end;

end;

Code:

{ Автор:       Gua, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.,

***************************************************** }

type

TVendor = array[0..11] of char;

.........................

function GetCPUVendor: TVendor; assembler; register;

asm

PUSH EBX {Save affected register}

PUSH EDI

MOV EDI,EAX {@Result (TVendor)}

MOV EAX,0

DW $A20F {CPUID Command}

MOV EAX,EBX

XCHG EBX,ECX {save ECX result}

MOV ECX,4

@1:

STOSB

SHR EAX,8

LOOP @1

MOV EAX,EDX

MOV ECX,4

@2:

STOSB

SHR EAX,8

LOOP @2

MOV EAX,EBX

MOV ECX,4

@3:

STOSB

SHR EAX,8

LOOP @3

POP EDI {Restore registers}

POP EBX

end;

Code:

package BTClasses;

{$R *.res}

{$ALIGN 8}

{$ASSERTIONS ON}

{$BOOLEVAL OFF}

{$DEBUGINFO ON}

{$EXTENDEDSYNTAX ON}

{$IMPORTEDDATA ON}

{$IOCHECKS ON}

{$LOCALSYMBOLS ON}

{$LONGSTRINGS ON}

{$OPENSTRINGS ON}

{$OPTIMIZATION ON}

{$OVERFLOWCHECKS OFF}

{$RANGECHECKS OFF}

{$REFERENCEINFO ON}

{$SAFEDIVIDE OFF}

{$STACKFRAMES OFF}

{$TYPEDADDRESS OFF}

{$VARSTRINGCHECKS ON}

{$WRITEABLECONST OFF}

{$MINENUMSIZE 1}

{$IMAGEBASE $400000}

{$IMPLICITBUILD OFF}

requires

rtl;

contains

BTRadio in 'BTRadio.pas',

BluetoothAPI in 'BluetoothAPI.pas',

BthSdpDef in 'BthSdpDef.pas',

BTExceptions in 'BTExceptions.pas',

BTStrings in 'BTStrings.pas',

BTDevice in 'BTDevice.pas';

end.