An apparatus and method for creating instruction groups for explicitly parallel
architectures is provided. The apparatus and method accept instruction groups as
input and determine a number of each possible type of instruction in the instruction
group. Based on the number of each possible type of instruction in the instruction
group, instruction bundling is performed such that the instructions in the instruction
group are bundled into efficiently executed bundles. The instruction bundling further
accommodates intra-bundle stop bundles in the event that more efficient bundles
are not possible. The instruction bundling is performed based on a most restrictive
instruction type placement first and proceeds to less restrictive instruction type placement.
