Data processor having carry apparatus supporting a decimal divide operation
Patent 4384341 Issued on May 17, 1983. Estimated Expiration Date: 
December 24, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 24, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2924383 2932450 3239654 3591786 3735108 InventorsAssigneeApplicationNo. 06/219638 filed on 12/24/1980US Classes:708/652Coded decimalExaminersPrimary: Malzahn, David H.Attorney, Agent or FirmInternational ClassesG06F 7/52 (20060101)G06F 7/48 (20060101) AbstractA commercial instruction processor executes a decimal divide instruction by counting the number of subtractions by the divisor resulting in a positive remainder to develop the quotient. Apparatus compares the most significant decimal digit of the divisor with the most significant decimal digit of the remainder after each subtraction pass to predict if the next subtraction pass would result in a negative remainder. If so, a quotient decimal digit is stored in a memory, the divisor is shifted one decimal digit position to the right, and a series of subtraction passes are made to develop the next quotient decimal digit. | |
