Rather, access is by a large set of macros of the form ILOP_xxx(N), where N is a pointer to an IL_NODE. These macros which know how various operands are stored in the operands vector for all the various instruction types. [0264] Some of the node types are as follows (this list is not all-inclusive): [0265] Unary operations [0266] These represent a variety of simple unary (1 source operand) instruc