JPS5475965A - Pipeline control check system - Google Patents
Pipeline control check systemInfo
- Publication number
- JPS5475965A JPS5475965A JP14340677A JP14340677A JPS5475965A JP S5475965 A JPS5475965 A JP S5475965A JP 14340677 A JP14340677 A JP 14340677A JP 14340677 A JP14340677 A JP 14340677A JP S5475965 A JPS5475965 A JP S5475965A
- Authority
- JP
- Japan
- Prior art keywords
- discrimination
- codes
- control part
- synchronism
- pipeline
- 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
Landscapes
- Advance Control (AREA)
- Complex Calculations (AREA)
Abstract
PURPOSE: To detect simply the synchronism slippage between an arithmetic part and a control part by inputting discrimination codes, which discriminate instructions belonging to processing steps, to the pipeline arithmetic part and the control part of it respectively and comparing discrimination codes outputted from both parts with each other.
CONSTITUTION: Control part 1 and pipeline arithemtic part 2 are provided with discrimination code registers 5A to 5D and 6B to 6D respectively, and discrimination codes iD1, iD2... to discriminate instructions belonging to each processing step are inputted to discrimination code registers from discrimination code generator 4 in respect to each processing step. According as processing steps are advanced, the execution of instructions is shifted, and simultaneously, discrimination codes are shifted. In transmitting the calculation result, which is outputted from the pipeline arithmetic part, to the external, discrimination code iD1 of register 6D in pipeline arithmetic part 2 and discrimination code iD1 of register 5D in control part 1 are compared with each other in comparator circuit 13. Then, synchronism is normal when both codes agree with each other, and both codes do not agree with each other to output an error signal from circuit 13 in case of synchronism slippage.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14340677A JPS5475965A (en) | 1977-11-30 | 1977-11-30 | Pipeline control check system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14340677A JPS5475965A (en) | 1977-11-30 | 1977-11-30 | Pipeline control check system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5475965A true JPS5475965A (en) | 1979-06-18 |
JPS5626871B2 JPS5626871B2 (en) | 1981-06-22 |
Family
ID=15338021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14340677A Granted JPS5475965A (en) | 1977-11-30 | 1977-11-30 | Pipeline control check system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5475965A (en) |
-
1977
- 1977-11-30 JP JP14340677A patent/JPS5475965A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5626871B2 (en) | 1981-06-22 |
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