JPS5520508A - Processor for division - Google Patents
Processor for divisionInfo
- Publication number
- JPS5520508A JPS5520508A JP7913678A JP7913678A JPS5520508A JP S5520508 A JPS5520508 A JP S5520508A JP 7913678 A JP7913678 A JP 7913678A JP 7913678 A JP7913678 A JP 7913678A JP S5520508 A JPS5520508 A JP S5520508A
- Authority
- JP
- Japan
- Prior art keywords
- remainder
- processing
- processing section
- multiplication
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To speed up the operation by performing the process only with the upper rank bits limited, in the unit in which division is made with the processing of multiplication for the approximate value Dt -1 which is a reciprocal of the divisor D.
CONSTITUTION: The X input corresponding to the value Q(j), Y input corresponding to the value dt and the remainder R(j) are inputted to the multiplication processing section 1, and the carry output C of the multiplication corresponding to the left side of equation (1) and the sum output S are respectively set to the registers 2 and 3. The upper rank bit of the outputs C and S is fed to the addition processing section 4 to obtain the step quotient Q (j+1). On the other hand, the remainder R(j+1) at that time is returned to the processing section 1 from the registers 2 and 3. The remainder processing section 6 repeats specified processing to obtain the final remainder at the remainder generator 9. The quotient generator 5 integrates the step quotients Q(O)... obtained every step. The processing speed can be increased by limiting the number of processing bits at the processing section 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7913678A JPS5520508A (en) | 1978-06-29 | 1978-06-29 | Processor for division |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7913678A JPS5520508A (en) | 1978-06-29 | 1978-06-29 | Processor for division |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5520508A true JPS5520508A (en) | 1980-02-14 |
Family
ID=13681529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7913678A Pending JPS5520508A (en) | 1978-06-29 | 1978-06-29 | Processor for division |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5520508A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60164837A (en) * | 1984-02-07 | 1985-08-27 | Nec Corp | Divider |
JPH01266628A (en) * | 1988-01-29 | 1989-10-24 | Texas Instr Inc <Ti> | Apparatus and method for calculating division |
JPH02227726A (en) * | 1989-01-13 | 1990-09-10 | Internatl Business Mach Corp <Ibm> | Apparatus and method for executing floating point division |
-
1978
- 1978-06-29 JP JP7913678A patent/JPS5520508A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60164837A (en) * | 1984-02-07 | 1985-08-27 | Nec Corp | Divider |
JPH0368416B2 (en) * | 1984-02-07 | 1991-10-28 | Nippon Electric Co | |
JPH01266628A (en) * | 1988-01-29 | 1989-10-24 | Texas Instr Inc <Ti> | Apparatus and method for calculating division |
JPH02227726A (en) * | 1989-01-13 | 1990-09-10 | Internatl Business Mach Corp <Ibm> | Apparatus and method for executing floating point division |
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