Information processing system which converts specific instructio

Details Information processing system which converts specific instructio Information processing system which converts specific instructio

1992-05-08

1995-04-04

Bowler, Alyssa H.

Boots, shoes, and leggings

395375, 3642302, 3642328, 3642632, 364DIG1, G06F 900

Patent

active

054045541

ABSTRACT:
A processor comprises an instruction register which holds a plurality of user instruction codes one by one, a state counter which outputs a number indicating the internal state,of a system which changes along with the execution of instructions, and a decoder which receives as input the contents of the instruction register and the state counter and produces various types of control signals for the system. Additionally, the processor has two further comprises a detection/storage unit which detects the occurrence of predetermined specific processing and when detecting the same stores the specific instruction code preselected from among the above-mentioned user instruction codes in the instruction register. Further, a state changing unit is included in the processor which, when there is a detection, presets the internal state number shown by the state counter to a certain value by force and which converts the instruction corresponding to the specific instruction code to an instruction compatible with the above-mentioned specific processing.

REFERENCES:
patent: 4498136 (1985-02-01), Sproul, III
patent: 4616331 (1986-10-01), Kinoshita et al.
patent: 4709324 (1987-11-01), Kloker
patent: 5202964 (1993-04-01), Crouch
patent: 5226122 (1993-07-01), Thayer et al.
Patent Abstracts of Japan, vol. 8, No. 48 (P-258), Mar. 3, 1984 & JP-A-58 199499 (Tokyo Shibaura Denki K.K.), Nov. 19, 1983.
Patent Abstracts of Japan, vol. 8, No. 215 (P-305), Oct. 2, 1984 & JP-A-59 099550 (Toshiba K.K.), Jun. 8, 1984.
Patent Abstracts of Japan, vol. 12, No. 88 (P-678), Mar. 23, 1988 & JP-A-62 221729 (Fujitsu Ltd), Sep. 29, 1987.

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