Apparatus for forming effective memory addresses

• US 3,303,477 A
• Filed: 10/08/1964
• Issued: 02/07/1967
• Est. Priority Date: 10/08/1963
• Status: Expired due to Term

• Current Assignee: Heinz E. Voigt
• Original Assignee: Heinz E. Voigt
• Inventors: Voigt, Heinz E.
• Application Number:
  US04/402,386
• Time in Patent Office: 852 Days
• US Class Current: 711/220
• CPC Class Codes: G06F 12/04 Addressing variable-length words or parts of words
• CPC Class Codes: G06F 12/0623 for memory modules
• CPC Class Codes: G06F 9/321 Program or instruction counter, e.g. incrementing

Claims

1. IN A PROGRAM-CONTROLLED COMPUTER HAVING AN ADDRESSABLE STORE AND AN ADDRESS ADDER WHICH COMBINES INSTRUCTION GIVEN RELATIVE ADDRESSES ADDITIVELY WITH A REFERENCE ADDRESS TO FORM AN EFFECTIVE ADDRESS WHICH DESCRIBES ONLY ONE CELL OF THE STORE OF THE COMPUTER, THE IMPROVEMENT WHEREIN THE LINES REPRESENTING THE RELATIVE ADDRESSES AND THE REFERENCE ADDRESSES HAVE FEWER BINARY PLACES THAN ARE REQUIRED TO DESIGNATE AND EFFECTIVE STORAGE ADDRESS FOR A CLEAR DISTINCTION BETWEEN ALL STORAGE CELLS, SAID ADDER HAVING MEANS FOR ADDING THE LEADING N VALUE PLACES OF THE RELATIVE ADDRESS TO THE REFERENCE ADDRESS WHICH HAS M VALUE PLACES, WITH M>

N TO FORM AN EFFECTIVE ADDRESS HAVING THE REQUIRED NUMBER OF PLACES.