@instruction<EOL><INDENT>def PUNPCKLBW(cpu, dest, src):<DEDENT>
cpu._PUNPCKL(dest, src, <NUM_LIT:8>)<EOL>
Interleaves the low-order bytes of the source and destination operands.

Unpacks and interleaves the low-order data elements (bytes, words, doublewords, and quadwords)
of the destination operand (first operand) and source operand (second operand) into the
destination operand.

:param cpu: current CPU.
:param dest: destination operand.
:param src: source operand.