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Unit Unit1;
(* -------------------------------------------------------- *)
Interface
(* -------------------------------------------------------- *)
Type

  Dword = Cardinal;

  TRAMInfo = Packed Record
    AvailablePages:    Dword;
    FreePages:         Dword;
    PageFaults:        Dword;
    KernelHeapSize:    Dword;
    KernelHeapFree:    Dword;
    Blocks:            Dword;
    FreeBlocks:        Dword;
    MaxFreeBlock:      Dword;
    MaxAllocatedBlock: Dword;
  End;

Var
  hConsole: Pointer;
  ConsoleInit:       Procedure(WndWidth, WndHeight, ScrWidth, ScrHeight: Dword; Caption: PChar); StdCall;
  ConsoleExit:       Procedure(bCloseWindow: Cardinal); StdCall;
  printf:            Function(Const Format: PChar): Integer; CDecl VarArgs;
(* -------------------------------------------------------- *)
  Procedure Main; Forward;
  Procedure ThreadTerminate; Forward;
  Function  LoadLibrary(Path: PChar): Pointer; StdCall; Forward;
  Function  GetProcAddress(hLib: Pointer; ProcName: PChar): Pointer; StdCall; Forward;
  Function  GetRAMInfo(Var Buffer: TRAMInfo): Integer; StdCall; Forward;
(* -------------------------------------------------------- *)
Implementation
(* -------------------------------------------------------- *)
Procedure Main();
Var
   RAMInfo: TRAMInfo;
Begin

   hConsole          := LoadLibrary('/sys/lib/console.obj');
   ConsoleInit       := GetProcAddress(hConsole, 'con_init');
   ConsoleExit       := GetProcAddress(hConsole, 'con_exit');
   printf            := GetProcAddress(hConsole, 'con_printf');

   ConsoleInit($FFFFFFFF, $FFFFFFFF, $FFFFFFFF, $FFFFFFFF, 'Test');

   GetRAMInfo(RAMInfo);
   With RAMInfo Do Begin
     printf('AvailablePages    = %d'#10, AvailablePages);
     printf('FreePages         = %d'#10, FreePages);
     printf('PageFaults        = %d'#10, PageFaults);
     printf('KernelHeapSize    = %d'#10, KernelHeapSize);
     printf('KernelHeapFree    = %d'#10, KernelHeapFree);
     printf('Blocks            = %d'#10, Blocks);
     printf('FreeBlocks        = %d'#10, FreeBlocks);
     printf('MaxFreeBlock      = %d'#10, MaxFreeBlock);
     printf('MaxAllocatedBlock = %d'#10, MaxAllocatedBlock);
   End;

   ConsoleExit(0);
   ThreadTerminate;
End;
(* -------------------------------------------------------- *)
Function  GetRAMInfo(Var Buffer: TRAMInfo): Integer; StdCall;
Asm
        push   ebx
        mov    eax, 18
        mov    ebx, 20
        mov    ecx, Buffer
        int    64
        pop    ebx
End;
(* -------------------------------------------------------- *)
Procedure ThreadTerminate();
Asm
        mov    eax, $FFFFFFFF
        int    64
End;
(* -------------------------------------------------------- *)
Function GetProcAddress(hLib: Pointer; ProcName: PChar): Pointer;
Asm
        push   esi
        push   edi
        push   ebx
        mov    edx, hLib
        xor    eax, eax
        test   edx, edx
        jz     @end
        mov    edi, ProcName
        mov    ecx, $FFFFFFFF
        repne scasb
        mov    ebx, ecx
        not    ebx
@next:
        mov    esi, [edx]
        test   esi, esi
        jz     @end
        mov    ecx, ebx
        mov    edi, ProcName
        add    edx, 8
        repe cmpsb
        jne    @next
        mov    eax, [edx - 4]
@end:
        pop    ebx
        pop    edi
        pop    esi
End;
(* -------------------------------------------------------- *)
Function LoadLibrary(Path: PChar): Pointer;
Asm
        push   ebx
        mov    eax, 68
        mov    ebx, 19
        mov    ecx, Path
        int    64
        pop    ebx
End;
(* -------------------------------------------------------- *)
End.