Browse Prior Art Database

Skew Box

IP.com Disclosure Number: IPCOM000095646D
Original Publication Date: 1964-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Duke, KA: AUTHOR

Abstract

This device is used to obtain four-bit left shift of an eight-bit byte which can be considered as two four-bit digits, A (most significant) and B (least significant). Shifting is achieved by selecting B as the most significant output digit and entering A into buffer 2 to become the least significant output digit to the next following output byte.

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Skew Box

This device is used to obtain four-bit left shift of an eight-bit byte which can be considered as two four-bit digits, A (most significant) and B (least significant). Shifting is achieved by selecting B as the most significant output digit and entering A into buffer 2 to become the least significant output digit to the next following output byte.

In operation, an input byte is applied to register 1 and any data in buffer 2 is applied to the least significant digit position of the right-hand side of latched two- way selector 3. The digit A in register 1 is then transferred to the most significant digit position of the left-hand side of selector 3 and to buffer 2. The digit B is transferred to the least significant digit position of the left-hand side of selector 3 and to the most significant digit position of the right-hand side of selector 3.

Then, if left shift is required, the data in the right-hand side of selector 3 is applied to output terminals 4. If no shift is required, the data in the left-hand side of selector 3 is applied to terminals 4.

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