04812971 is referenced by 11 patents and cites 20 patents.

A central processing unit for a digital computer. In one embodiment, the central processing unit comprises a plurality of pointer registers that may be used during instruction execution to directly address other registers. In a second embodiment, the central processing unit comprises a size register that is loaded during the decode of an operation code with a size code indicating the data path width for that operation code. During instruction execution, the size code may be used at various times to determine data path width.

Title
Central processing unit for a digital computer
Application Number
538373
Publication Number
4812971
Application Date
June 16, 1988
Publication Date
March 14, 1989
Inventor
Robert T Short
Woodinville
WA, US
Peter C Schnorr
Redmond
WA, US
David N Cutler
Mercer Island
WA, US
H Bruce Butts Jr
Seattle
WA, US
Agent
Arnold White & Durkee
Assignee
Digital Equipment Corporation
MA, US
IPC
G06F 13/00
G06F 9/30
G06F 9/22
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