Fetch instruction for operand address calculation

Details Fetch instruction for operand address calculation Fetch instruction for operand address calculation

1976-02-06

1977-06-07

Springborn, Harvey E.

Communications: electrical

Digital comparator systems

G06F 906

Patent

active

040286703

ABSTRACT:
A special directly executable instruction, Fetch Instruction Operand Address (FIOA) is accessed in response to encountering a complex non-directly executable instruction. Execution of the FIOA instruction causes generation of control signals for address calculation of the operands in the non-directly executable instruction by the same I phase hardware used by other directly executable instructions.

REFERENCES:
patent: 3736363 (1973-05-01), Beers et al.
patent: 3736567 (1973-05-01), Lotan et al.
IBM Tech. Disclosure Bulletin - Hardware-Aided Simulator Program - S. G. Tucker et al. - vol. 7, No. 4, 9/64; pp. 289-292.

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