> "The Access Customer Name Abbreviation (ACNA) field is used
> to tie a PSR customer account to an ASR, ISR, or LSR customer
> (which is called an ACNA)."
> There are two types of data dependencies. Register dependencies occur when one instruction writes a register and a subsequent instruction reads the same register. Memory dependencies occur when a store instruction writes to a memory location and a subsequent load instruction reads that same location. http://courses.ece.uiuc.edu/ece511/papers/Chrysos.1998.ISCA.pdf