Main memory managing method and apparatus in which main memory i

Details Main memory managing method and apparatus in which main memory i Main memory managing method and apparatus in which main memory i

1994-08-24

1996-11-26

Swann, Tod R.

Boots, shoes, and leggings

39549701, 395674, 395480, 364DIG1, G06F 1202

Patent

active

055795080

ABSTRACT:
A main memory managing arrangement involves allotting a request program to one of three distinct areas of main memory by looking in an area managing table which stores head addresses and the capacities of the respective areas. The areas allocated in main memory correspond to a single OS area, a single first class program area and a single second class program area. An empty page managing table is also provided for indicating the presence or absence of an empty area conformable to a request in an allocated area. A request program is allocated to the allocated area when the presence of the empty area of required capacity is determined. The memory capacity for a resident program can be assured independently of the memory capacities for other programs to enhance reliability conformable to real-time process computers.

REFERENCES:
patent: 4390945 (1983-06-01), Olsen et al.
patent: 4403283 (1983-09-01), Myntti et al.
patent: 4811216 (1989-03-01), Bishop et al.
patent: 4996662 (1991-02-01), Cooper et al.
patent: 5062039 (1991-10-01), Brown

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