JPS6478369A - Vector data processor - Google Patents
Vector data processorInfo
- Publication number
- JPS6478369A JPS6478369A JP23370287A JP23370287A JPS6478369A JP S6478369 A JPS6478369 A JP S6478369A JP 23370287 A JP23370287 A JP 23370287A JP 23370287 A JP23370287 A JP 23370287A JP S6478369 A JPS6478369 A JP S6478369A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- arithmetic
- comparison
- vector
- selecting
- 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
- Complex Calculations (AREA)
Abstract
PURPOSE:To carry out sorting, merging, selecting and joining operations, etc., in parallel with each other via a pipeline, by adding a vector register, a mask register, a comparison arithmetic pipe and an arrangement pipe into a vector arithmetic unit. CONSTITUTION:Plural key elements are read out of a vector register VR20 at one time and undergo comparison arithmetic. Based on the arithmetic results, the key elements are selected and can be written again in the VR20 via a comparison arithmetic pipe 22. A mask register MR21 writes the result of the comparison result. An arrangement pipe 23 arranges data by reading plural pieces of vector data out of the VR20 to store them temporarily in a buffer, selecting directly the elements read out of the buffer based on the comparison result stored in the MR21 or the comparison result of the pipe 22, and writing these elements again in the VR20. Thus it is possible to process the sorting, merging, selecting and joining operations, etc., which are important to data base processing via a pipeline.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23370287A JPS6478369A (en) | 1987-09-19 | 1987-09-19 | Vector data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23370287A JPS6478369A (en) | 1987-09-19 | 1987-09-19 | Vector data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478369A true JPS6478369A (en) | 1989-03-23 |
Family
ID=16959208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23370287A Pending JPS6478369A (en) | 1987-09-19 | 1987-09-19 | Vector data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478369A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5210870A (en) * | 1990-03-27 | 1993-05-11 | International Business Machines | Database sort and merge apparatus with multiple memory arrays having alternating access |
US5287494A (en) * | 1990-10-18 | 1994-02-15 | International Business Machines Corporation | Sorting/merging tree for determining a next tournament champion in each cycle by simultaneously comparing records in a path of the previous tournament champion |
-
1987
- 1987-09-19 JP JP23370287A patent/JPS6478369A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5210870A (en) * | 1990-03-27 | 1993-05-11 | International Business Machines | Database sort and merge apparatus with multiple memory arrays having alternating access |
US5548769A (en) * | 1990-03-27 | 1996-08-20 | International Business Machines Corporation | Database engine |
US5619713A (en) * | 1990-03-27 | 1997-04-08 | International Business Machines Corporation | Apparatus for realigning database fields through the use of a crosspoint switch |
US5287494A (en) * | 1990-10-18 | 1994-02-15 | International Business Machines Corporation | Sorting/merging tree for determining a next tournament champion in each cycle by simultaneously comparing records in a path of the previous tournament champion |
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