Method for use in translating virtual addresses into absolute addresses

Abstract

In a processing system, a translation is facilitated between a virtual address and an absolute address. The system includes multiple registers and a mechanism for loading them with a first set of address translation parameters. An adder sums a translation origin register with an offset register to produce a base-plus-offset value. A logic circuit selectively combines selected registers and the base-plus-offset value to produce an address of a translation table entry which facilitates a determination of the absolute address. This determination includes performing one or more of prefixing, windowing, zoning and memory begin. A latency of the system from a presentation of the translation origin register to the adder to the output of the translation table entry from the logic circuit is at most one clock cycle.