5.5.2 Fill Directive

The .fill repeat[, size[, value]] directive reserves space for repeat copies of a size-byte value derived from value. The repeated value is the lowest size bytes of a number sequence consisting of the highest order 4 bytes being zero and the lowest order 4 bytes being value rendered in little-endian byte-order.

The size and value arguments are optional. When not specified, the size defaults to the value 1 and the value argument defaults to value 0.

The repeat argument is mandatory and may be zero or more, but if it is more than 8, then it is deemed to have the value 8.

For example, the following code will place down 3 copies of the byte 0xFF.

          .text
          .fill 0x3, 1, 0xFF
          .align 2
mylabel:  b .