Computer operand address computation

Details Computer operand address computation Computer operand address computation

1982-09-29

1985-08-27

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 936

Patent

active

045382239

ABSTRACT:
The address of an operand in computer main memory is computed by a system which utilizes a base memory frame address in combination with a displacement value, indicative of the position in the frame of the operand relative to the base memory frame address, and information relating to the length of the operand to supply system hardware with the necessary information to enable a fetch of the operand from main memory. This system has the capability to compute addresses for multi-byte word operands within a single firmware clock cycle.

REFERENCES:
patent: 3976978 (1976-08-01), Patterson et al.
patent: 4124891 (1978-11-01), Weller, III et al.
patent: 4439828 (1984-03-01), Martin
System Programming, John Donovan, 1972, pp. 25-29.
IBM System/360, Principles of Operations, 1964.

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