Programmable controller with a BPU that executes first-class ins

Details Programmable controller with a BPU that executes first-class ins Programmable controller with a BPU that executes first-class ins

1998-02-19

2000-07-25

Kim, Kenneth S.

Electrical computers and digital processing systems: processing

Processing architecture

Microprocessor or multichip or multimodule processor having...

700 2, 712226, 712245, G06F 944

Patent

active

060947187

ABSTRACT:
A programmable controller includes a BPU that executes first-class instructions, a CPU that executes second-class instructions, and a memory that is shared by the BPU and the CPU and stores a program, which is formed of a combination of first-class and second-class instructions. The programmable controller also includes a judgment-data storage section that stores judgment data for judging whether a second-class instruction is a skippable instruction or not, and a skip processing section that judges whether the operation result of the preceding instruction satisfies a skip condition or not. If judging that the operation result satisfies the skip condition, then the skip processing section judges whether a current instruction of the second class is a skippable instruction or not, based on the above judgment data, and skips the current instruction without transferring control right to the CPU, if the current instruction is a skippable instruction.

REFERENCES:
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patent: 5553297 (1996-09-01), Yonezawa et al.
patent: 5704052 (1997-12-01), Wu et al.
An English Language translation of an examination report issued by the German Patent Office dated Feb. 22, 1999.

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