Microprocessor with improved arithmetic logic unit data path
AssigneeFairchild Camera and Instrument Corporation
InventorsYeshayahu Mor, Allan M. Schiffman
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Abstract
A microprocessor for facilitating the execution of instructions which require repetitive shift and arithmetic logic unit operations comprises an arithmetic logic unit having a first and a second input and an output, a plurality of registers, at least one of which is a bidirectionally shifting register and multiplexing apparatus for selectively coupling each of said plurality of registers to said first and said second inputs and said output of said arithmetic logic unit.
Claims3
A microprocessor for facilitating the execution of instructions which require repetitive shift and arithmetic logic unit operations comprising:
- an arithmetic logic unit having a first and a second input and an output;
- a plurality of register means, at least one of which is a bi-directionally shifting register means;
- and
- means for selectively coupling each of said plurality of register means to said first and said second inputs and said output of said arithmetic logic unit.
Dependencies are inferred from the claim text.