Abstract: The present invention discloses a set of machine level instructions that perform primitive operations on singly or doubly linked lists. The instructions allow linked lists to be manipulated in such a way as to allow multiple processes in a parallel computing environment to access shared lists without the need for additional synchronization. Furthermore, the present invention does not place restrictions on the location of forward and backward pointer within the linked list elements.
Type:
Grant
Filed:
July 16, 1991
Date of Patent:
June 7, 1994
Assignee:
International Business Machines Corporation
Abstract: A device for supporting and towing a trailer includes a first part engageable with the kingpin of the trailer, a second part engageable with an edge portion of the trailer, and a pair of tension members extending from the first part past the second part at spaced positions therealong, and secured to a supporting or towing vehicle.
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