Abstract: A system and method of tool path processing is taught which offsets a tool path from a given geometric sequence, avoiding tool interference and accounting for coincident tool paths. It guides a numerically-controlled machine tool in the manufacturing process. In accordance with the present invention, a computer-aided-manufacturing system defines or allows definition of a pattern to be machined by a tool having an offset, analyzes the pattern for points of intersection, breaks down the pattern into contiguous segments between points of intersection, structures a list of the segments, ordered between intersection points, defines tool path chains, responsive to the list; validates the tool path chains to define valid tool paths, and, guides the movement of the tool along a valid tool path.

Abstract: A numeric data processor having an execution unit adapted to efficiently execute the complete set of floating point operations recommended by the IEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE Std. 754-1985, in full compliance therewith. The numeric data processor is also adapted to evaluate a large set of transcendental functions, including trigonometric, logarithmic and exponential, consistent with the IEEE Standard, without requiring a "software envelope." In the processor, special hybrid forms of Volder's CORDIC digital approximator and Meggitt's digital approximator are implemented in a manner so as to require minimal additions or modifications to the form of the execution unit which is otherwise required just to execute the standard floating point operations.

Abstract: The current microinstruction of a micromachine enables a selected one of a plurality of conditions to select one of a plurality of microaddress qualifiers to be combined with a specified base microaddress to form the next microaddress for the micromachine.