JPS6428741A - Retrial system at branching - Google Patents
Retrial system at branchingInfo
- Publication number
- JPS6428741A JPS6428741A JP62183737A JP18373787A JPS6428741A JP S6428741 A JPS6428741 A JP S6428741A JP 62183737 A JP62183737 A JP 62183737A JP 18373787 A JP18373787 A JP 18373787A JP S6428741 A JPS6428741 A JP S6428741A
- Authority
- JP
- Japan
- Prior art keywords
- register
- retrial
- instruction
- period
- processing
- 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
Landscapes
- Retry When Errors Occur (AREA)
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE:To eliminate the processing period incapable of retrial by using a branch destination instruction as an instruction to apply retrial during the retrial processing period corresponding to a no processing operation period. CONSTITUTION:Access is started by a storage address E0 in a storage device 20 at a processing period T-2 and the E0 is set to a register 22. An instruction by the E0 is fetched in a register 32 via a selector 31 at a period T-1 to form a branch instruction. simultaneously, it is set to a register 23. A branch instruction E0 is set to a register 24 via a selector 26 and the E0 is read from the register 23 to obtain a storage address B0 in the device 20 and set to the register 21 via a selector 27. Successful branching and the latch 33 are ORed (35) at periods T1, T2 and an ineffective processing instruction NOP is given to the register 32 to form a non processing period. If an error is detected for a period T3 and a retrial request exists, the retrial is executed by a branch instruction B0 read from the device 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62183737A JPS6428741A (en) | 1987-07-24 | 1987-07-24 | Retrial system at branching |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62183737A JPS6428741A (en) | 1987-07-24 | 1987-07-24 | Retrial system at branching |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428741A true JPS6428741A (en) | 1989-01-31 |
Family
ID=16141091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62183737A Pending JPS6428741A (en) | 1987-07-24 | 1987-07-24 | Retrial system at branching |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428741A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920055A (en) * | 1982-07-26 | 1984-02-01 | Fujitsu Ltd | Retrial system of branch instruction |
-
1987
- 1987-07-24 JP JP62183737A patent/JPS6428741A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920055A (en) * | 1982-07-26 | 1984-02-01 | Fujitsu Ltd | Retrial system of branch instruction |
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