JPS6461823A - Logical information processor - Google Patents
Logical information processorInfo
- Publication number
- JPS6461823A JPS6461823A JP21632187A JP21632187A JPS6461823A JP S6461823 A JPS6461823 A JP S6461823A JP 21632187 A JP21632187 A JP 21632187A JP 21632187 A JP21632187 A JP 21632187A JP S6461823 A JPS6461823 A JP S6461823A
- Authority
- JP
- Japan
- Prior art keywords
- data
- tags
- arithmetic
- bits
- tag
- 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 realize a high-speed arithmetic operation to the data including the data with tags and the data with no tag by storing the tag into a lower bit for the purpose of expression of the data with tags that shows the attribute of the data. CONSTITUTION:In a data format one word is shown in 32 bits and the tags set at the lower two bits. In the case of an arithmetic operation with tags, a signal line 702 led from an MPC shows 1 and a mask circuit words to mask the signals of bits 0 and 1 serving as the tag parts of signals lines 901 and 902 of the input data. The data on other bits are supplied as they are to an arithmetic part and the bit '0' and '1' of an output signal 903 calculated by the arithmetic part are supplied to a switch circuit. While in an arithmetic operation with no tag, the mask circuit does not work since the line 702 is set to '0' and an input signal is supplied as it is to the arithmetic part. Thus the arithmetic operations are carried out by the same arithmetic unit at a high speed by setting the tags at the lower positions of the data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21632187A JPS6461823A (en) | 1987-09-01 | 1987-09-01 | Logical information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21632187A JPS6461823A (en) | 1987-09-01 | 1987-09-01 | Logical information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6461823A true JPS6461823A (en) | 1989-03-08 |
Family
ID=16686697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21632187A Pending JPS6461823A (en) | 1987-09-01 | 1987-09-01 | Logical information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6461823A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0365186A2 (en) * | 1988-10-19 | 1990-04-25 | Hewlett-Packard Company | Apparatus for enhanced tagged data processing in a generalized computer execution unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS629440A (en) * | 1985-07-08 | 1987-01-17 | Hitachi Ltd | Data processor |
-
1987
- 1987-09-01 JP JP21632187A patent/JPS6461823A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS629440A (en) * | 1985-07-08 | 1987-01-17 | Hitachi Ltd | Data processor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0365186A2 (en) * | 1988-10-19 | 1990-04-25 | Hewlett-Packard Company | Apparatus for enhanced tagged data processing in a generalized computer execution unit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0368826A3 (en) | Data processing circuit | |
JPS6461823A (en) | Logical information processor | |
JPS55164925A (en) | Printer | |
JPS5351936A (en) | High speed addition circuit | |
JPS5478042A (en) | Language information processing unit | |
JPS5694596A (en) | Memory control system | |
JPS5547506A (en) | Numerical control system | |
JPS5710853A (en) | Memory device | |
JPS56101247A (en) | Audio output device | |
JPS649561A (en) | Computer | |
JPS5760422A (en) | Data transfer controlling system | |
EP0385482A3 (en) | Input switching device used in a logic mos integrated circuit | |
JPS57198595A (en) | Dynamic memory driving circuit | |
JPS6486271A (en) | Accumulator | |
JPS6455631A (en) | Data input device | |
JPS5730045A (en) | List processor | |
JPS641075A (en) | Picture processor | |
JPS5717057A (en) | Electronic machinery having information input means | |
JPS538031A (en) | Address setting system | |
JPS5764836A (en) | Input system of kana (japanese syllabary) sentence | |
JPS52127035A (en) | Signal input system | |
JPS5532129A (en) | Display system for calendar information | |
JPS6473437A (en) | Memory write protection circuit | |
JPS5578344A (en) | Microprogram control system | |
JPS5361239A (en) | Small-size electronic computer |