Equal nine apparatus for supporting absolute value subtracts on

Details Equal nine apparatus for supporting absolute value subtracts on Equal nine apparatus for supporting absolute value subtracts on

1983-09-30

1987-01-20

Thomas, James D.

Boots, shoes, and leggings

364768, G06F 738, G05F 750

Patent

active

046384502

ABSTRACT:
A data processing system having a central processing unit (CPU) capable of performing binary and decimal arithmetic software instructions is disclosed. The CPU includes a microprocessor which executes the binary arithmetic software instructions under firmware control. Also disclosed is apparatus utilizing a programmable memory and logic circuits that are used to subtract two operands and to generate and temporarily store a digit equal nine indication when the result of subtracting the two operands has a value of nine.

REFERENCES:
patent: 3222506 (1965-12-01), Meade
patent: 3983382 (1976-09-01), Weinberger
patent: 4323981 (1982-04-01), Nakamura
patent: 4348736 (1982-09-01), Weinberger
patent: 4384340 (1983-05-01), Tague et al.
patent: 4384341 (1983-05-01), Tague et al.
patent: 4390961 (1983-06-01), Negi et al.
patent: 4423483 (1983-12-01), Tague et al.
patent: 4426680 (1984-01-01), Tague et al.
patent: 4484300 (1984-11-01), Negi et al.
patent: 4506341 (1985-03-01), Kalter et al.
Schmookler, "Design of Large ALUs Using PLA Macros", IBM Journal Res. Develop., vol. 24, No. 1, pp. 2-14, Jan. 1980.

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