Microprogram control system

Details Microprogram control system Microprogram control system

1981-04-16

1985-07-30

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 922

Patent

active

045325855

ABSTRACT:
A microprogram control system of the invention has a mapping read only memory storing the respective initial addresses of a plurality of microprogram routines corresponding to a macroinstruction. The address input information to this mapping read only memory is obtained from an output of a binary counter which counts every time a JUMP instruction for making a branch to another microprogram routine is decoded, and from an output of a latch circuit for holding the operation code of the macroinstruction. When the microprogram routine has loops, a count inhibit signal is input to the binary counter so that the same address input information may be supplied to the mapping read only memory.

REFERENCES:
patent: 3800293 (1974-03-01), Enger et al.
patent: 3990054 (1976-11-01), Perlowski
patent: 4080648 (1978-03-01), Asano et al.
patent: 4131943 (1978-12-01), Shiraogawa
patent: 4173041 (1979-10-01), Dvorak et al.
patent: 4179737 (1979-12-01), Kim
patent: 4197578 (1980-04-01), Wada et al.
patent: 4245302 (1981-01-01), Amdahl
patent: 4266281 (1981-05-01), Struger et al.
patent: 4316244 (1982-02-01), Grandalski
patent: 4371925 (1983-02-01), Carberry et al.
patent: 4415969 (1983-11-01), Bayliss et al.
Mick et al, Bit-Slice Microprocessor Design, publ. McGraw-Hill, 1980, pp. 13-49.

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