Word store equipped with an address code conversion circuit

Details Word store equipped with an address code conversion circuit Word store equipped with an address code conversion circuit

1984-01-30

1986-04-29

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

G06F 300

Patent

active

045860246

ABSTRACT:
Word store equipped with an address code conversion circuit making it possible to obtain A.times.B words, A and B not being powers of two. The code conversion circuit is in two parts CTA(X) and CTA(Y), allocated respectively to the code conversion of two addresses X and Y. The first part CTA(X) comprises a multiplexer M(X), which multiplexes the r most significant bits of X with the determined logic level. The second part CTA(Y) comprises a multiplexer M(Y), which multiplexes the r most significant bits of Y (with the exception of the most significant bit) with the r most significant bits of X. The multiplexers are controlled by the most significant bit of one of the addresses. Application to the formation of stores, particularly for graphic or alphanumeric display screens.

REFERENCES:
patent: 4231021 (1980-10-01), Clark et al.

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