Skip to content

    FillByte

    Fill memory region with 8-bit pattern.

    Declaration

    Source position: systemh.inc line 923

    procedure FillByte(var x; count: SizeInt; value: Byte);

    Description

    FillByte fills the memory starting at X with Count bytes with value equal to Value. This is useful for quickly zeroing out a memory location. When the size of the memory location to be filled out is a multiple of 2 bytes, it is better to use Fillword, and if it is a multiple of 4 bytes it is better to use FillDWord, these routines are optimized for their respective sizes.

    Errors

    No checking on the size of X is done.

    See also

    Name Description
    Fillchar Fill memory region with certain character.
    FillDWord Fill memory region with 32-bit pattern.
    Fillword Fill memory region with 16-bit pattern.
    Move Move data from one location in memory to another.

    Example

    Program Example103;

{ Program to demonstrate the FillByte function. }

Var S : String[10];
    I : Byte;

begin
  For i:=10 downto 0 do
    begin
    { Fill S with i bytes }
    FillByte (S,SizeOf(S),32);
    { Set Length }
    SetLength(S,I);
    Writeln (s,'*');
    end;
end.