JPS5694436A - Division error detecting system - Google Patents
Division error detecting systemInfo
- Publication number
- JPS5694436A JPS5694436A JP17336479A JP17336479A JPS5694436A JP S5694436 A JPS5694436 A JP S5694436A JP 17336479 A JP17336479 A JP 17336479A JP 17336479 A JP17336479 A JP 17336479A JP S5694436 A JPS5694436 A JP S5694436A
- Authority
- JP
- Japan
- Prior art keywords
- register
- output
- circuit
- subtractor
- adder
- 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.)
- Granted
Links
Abstract
PURPOSE: To output the error signal with a simple constitution, by adding a comparatively simple hardware to detect the error of the control system of the dividing device.
CONSTITUTION: In the repeated operation cycle, the dividend from devidend A register 1 is applied to control signal generating circuits 8 and 9, and is applied to adder and subtractor 10 for operation between the partial remainder and a proper multiple of the divisor. One of outputs of circuits 8 and 9 is selected according to the signal of adder and subtractor 10 by selecting circuit 11, and the output is stored in register 12. The multiple of the divisor determined by contents of register 12 and the divisor from D register 2 where the multiplier is stored are added or subtracted by adder and subtractor 10, and the partial remainder of the result is stored in register 14. The quotient is forecasted on a basis of the output of register 12 by forecasting circuit 13, and the quotient is forecasted on a basis of the output of register 14 by forecasting circuit 15, and outputs of forecasting circuits 13 and 15 are compared with each other by comparing circuit 16; and if they do not agree with each other, the error is output from comparing circuit 16.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54173364A JPS6046449B2 (en) | 1979-12-27 | 1979-12-27 | Division error detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54173364A JPS6046449B2 (en) | 1979-12-27 | 1979-12-27 | Division error detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5694436A true JPS5694436A (en) | 1981-07-30 |
JPS6046449B2 JPS6046449B2 (en) | 1985-10-16 |
Family
ID=15959024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54173364A Expired JPS6046449B2 (en) | 1979-12-27 | 1979-12-27 | Division error detection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6046449B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60198645A (en) * | 1984-03-22 | 1985-10-08 | Fujitsu Ltd | Data processing system |
-
1979
- 1979-12-27 JP JP54173364A patent/JPS6046449B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60198645A (en) * | 1984-03-22 | 1985-10-08 | Fujitsu Ltd | Data processing system |
Also Published As
Publication number | Publication date |
---|---|
JPS6046449B2 (en) | 1985-10-16 |
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