Skip to content

BsfByte

Return the position of the rightmost set bit in an 8-bit value

Declaration

Source position: systemh.inc line 1171

  function BsfByte(const AValue: Byte) : Byte;

Description

BsfByte scans the byte AValue, starting at position 0 (rightmost position) and returns the index of the first set bit. The position is measured from the 0-th, rightmost bit.

When the input is 0, the result is 255 (unsigned equivalent of -1).

See also

Name Description
BsfDWord Return the position of the rightmost set bit in a 32-bit value
BsfQWord Return the position of the rightmost set bit in a 64-bit value
BsfWord Return the position of the rightmost set bit in a 16-bit value
BsrByte Return the position of the leftmost set bit in an 8-bit value