National Semiconductor Corporation

Cyrix Corporation

Douglas Beard

Raul A Garibay, Jr

Marc A Quattromani

Mark W Bluhm

Systems and methods for virtual addressing are disclosed having an address translation unit with variable page size by employing direct, victim, and programmable block translation look aside buffers. Selective comparisons between contents on a linear address bus and linear address tags are controlled by a size mask register which further controls a multiplexer to selectively steer bits onto a physical address bus from either the linear address bus or a physical address register.

Address translation unit employing programmable page size

An address translation unit is disclosed employing a direct-mapped translation lookaside buffer and a relatively small, associative victim translation lookaside buffer for translating linear addresses to physical addresses expediently and avoiding thrashing, without requiring large amounts of hardware and space.

Growing community of inventors

Allen, TX, United States of America

Douglas Beard