Microcomputer system with independent operating systems

Details Microcomputer system with independent operating systems Microcomputer system with independent operating systems

1985-04-03

1988-01-26

Eng, David Y.

Boots, shoes, and leggings

G06F 1516

Patent

active

047220481

ABSTRACT:
A computer system is described wherein two independent processors communicate via a bus system and operate substantially concurrently, each computer having its own operating system software and share a common memory. The architecture of the computer system is such that one of the processors is allocated the bulk of memory band-width with the other processor taking the remainder. Arbitration for memory allocation is accomplished via a combination of a new firmware instruction and a semaphore.

REFERENCES:
patent: 3631405 (1971-12-01), Hoff et al.
patent: 4131941 (1978-12-01), Siegel et al.
patent: 4200930 (1980-04-01), Rawlings et al.
patent: 4320451 (1982-03-01), Bachman et al.
patent: 4380798 (1983-04-01), Shannon et al.
patent: 4394725 (1983-07-01), Bienvenu et al.
patent: 4445197 (1984-04-01), Lorie et al.
patent: 4594657 (1986-06-01), Byrns
patent: 4644496 (1987-02-01), Andrews

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