Ati Technologies Inc.

Data General Corporation

Robert Feldstein

Peter G Marshall

Brad Hollister

The invention provides a method and apparatus that provides for a determination of a memory address for an object coordinate in a non-linear addressing scheme. To minimize computation complexity, the memory address of the object coordinate is based upon a previously computed address of an object coordinate that is in proximity to the given object coordinate.

Method and apparatus for relative addressing of tiled data

A computing system is disclosed which uses a system busy signal on its system bus to help control access to said bus. One or more requesters can generate a request signal when the system busy signal is not asserted. System busy is asserted along with the request signal(s) and remains asserted until all requesters which generated a request signal have gained access to the bus in order of priority. A freeze signal is generated on the system bus during the address phase of an instruction and a wait signal is generated during each data transfer in the data phase of an instruction. The freeze signal may be generated by a memory control unit, a memory module or a requester.

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Grafton, MA, United States of America

Robert Feldstein