JPS5528141A - Memory unit of electronic computer - Google Patents
Memory unit of electronic computerInfo
- Publication number
- JPS5528141A JPS5528141A JP9984478A JP9984478A JPS5528141A JP S5528141 A JPS5528141 A JP S5528141A JP 9984478 A JP9984478 A JP 9984478A JP 9984478 A JP9984478 A JP 9984478A JP S5528141 A JPS5528141 A JP S5528141A
- Authority
- JP
- Japan
- Prior art keywords
- read out
- designated
- logic
- memory unit
- bit
- 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 reduce the capacity of memory unit and to decrease the processing time, by converting the designated bit from one word read out into the designated logic and performing output with the logic as it is read out for other bits.
CONSTITUTION: To the instruction of one time outputted from CPU to the memory unit 1, the one word designated is read out from the unit 1. Further, the conversion circuit consisting of the selection circuit 2, exclusive OR gate 3, decode circuit 4, and gate circuit 5, converts the designated bit in one word read out into designated ligic. Other bits are outputted with the logic as they are read out, and the output is written in the logic 1. Thus, the write-in instruction of one time can oparate an arbitrary one bit, allowing to reduce the capacity of the unit 1 and to decrease the processing time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9984478A JPS5528141A (en) | 1978-08-16 | 1978-08-16 | Memory unit of electronic computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9984478A JPS5528141A (en) | 1978-08-16 | 1978-08-16 | Memory unit of electronic computer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5528141A true JPS5528141A (en) | 1980-02-28 |
Family
ID=14258103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9984478A Pending JPS5528141A (en) | 1978-08-16 | 1978-08-16 | Memory unit of electronic computer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5528141A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57103547A (en) * | 1980-12-19 | 1982-06-28 | Toshiba Corp | Bit word access circuit |
JPS5960658A (en) * | 1982-09-30 | 1984-04-06 | Fujitsu Ltd | Semiconductor storage device provided with logical function |
JPS5977557A (en) * | 1982-10-27 | 1984-05-04 | Yaskawa Electric Mfg Co Ltd | Bit access circuit |
JPS6029860A (en) * | 1983-07-18 | 1985-02-15 | Fuji Electric Co Ltd | Updating method of data |
JPS6194143A (en) * | 1984-10-15 | 1986-05-13 | Matsushita Electric Ind Co Ltd | Data transfer device |
JPS63192170A (en) * | 1987-02-05 | 1988-08-09 | Furuno Electric Co Ltd | Picture memory circuit |
JPH02146641A (en) * | 1988-11-29 | 1990-06-05 | Nec Corp | Memory device |
JPH0694029A (en) * | 1990-09-07 | 1994-04-05 | Torrington Co:The | Bearing seat encoder mount for sensor device |
-
1978
- 1978-08-16 JP JP9984478A patent/JPS5528141A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57103547A (en) * | 1980-12-19 | 1982-06-28 | Toshiba Corp | Bit word access circuit |
JPS5960658A (en) * | 1982-09-30 | 1984-04-06 | Fujitsu Ltd | Semiconductor storage device provided with logical function |
JPH0472255B2 (en) * | 1982-09-30 | 1992-11-17 | Fujitsu Ltd | |
JPS5977557A (en) * | 1982-10-27 | 1984-05-04 | Yaskawa Electric Mfg Co Ltd | Bit access circuit |
JPS6029860A (en) * | 1983-07-18 | 1985-02-15 | Fuji Electric Co Ltd | Updating method of data |
JPS6194143A (en) * | 1984-10-15 | 1986-05-13 | Matsushita Electric Ind Co Ltd | Data transfer device |
JPS63192170A (en) * | 1987-02-05 | 1988-08-09 | Furuno Electric Co Ltd | Picture memory circuit |
JPH02146641A (en) * | 1988-11-29 | 1990-06-05 | Nec Corp | Memory device |
JPH0694029A (en) * | 1990-09-07 | 1994-04-05 | Torrington Co:The | Bearing seat encoder mount for sensor device |
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