JPS55121541A - Arithmetic unit - Google Patents
Arithmetic unitInfo
- Publication number
- JPS55121541A JPS55121541A JP2808379A JP2808379A JPS55121541A JP S55121541 A JPS55121541 A JP S55121541A JP 2808379 A JP2808379 A JP 2808379A JP 2808379 A JP2808379 A JP 2808379A JP S55121541 A JPS55121541 A JP S55121541A
- Authority
- JP
- Japan
- Prior art keywords
- address
- circuit
- buffer
- column
- control part
- 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
Abstract
PURPOSE: To eliminate the need for a column-address counter and coincidence circuit by obtaining a column-assignment address by latching the addition result of an adder circuit for processing by a latch circuit, and then by comparing the content of the latch circuit to a processing-end column address.
CONSTITUTION: From control part 31 stored with various microinstructions, various signals of RAM32, an arithmetic memory, are outputted in parallel via bus lines. Next-address signal NA outputted from control part 31 is temporarily stored in address buffer 33 via address converting circuit 30 and then inputted to address part 34. According to the input signal from buffer 33, address part 34 assigns the address of control part 31. Timing decoder 36 outputs various control signals on the basis of signals ϕ1 and ϕ2, and t1Wt3 from timing signal generating circuit 37 and a command from operation decoder 35. Output data of adder circuit 38 are inputted to buffer 40 and latch circuits L2 and L3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2808379A JPS55121541A (en) | 1979-03-10 | 1979-03-10 | Arithmetic unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2808379A JPS55121541A (en) | 1979-03-10 | 1979-03-10 | Arithmetic unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55121541A true JPS55121541A (en) | 1980-09-18 |
JPS626253B2 JPS626253B2 (en) | 1987-02-09 |
Family
ID=12238879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2808379A Granted JPS55121541A (en) | 1979-03-10 | 1979-03-10 | Arithmetic unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55121541A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843047A (en) * | 1981-09-07 | 1983-03-12 | Toshiba Corp | Arithmetic controller |
JPS58192154A (en) * | 1982-05-07 | 1983-11-09 | Casio Comput Co Ltd | Memory device having automatic data processing function |
-
1979
- 1979-03-10 JP JP2808379A patent/JPS55121541A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843047A (en) * | 1981-09-07 | 1983-03-12 | Toshiba Corp | Arithmetic controller |
JPH0456349B2 (en) * | 1981-09-07 | 1992-09-08 | Tokyo Shibaura Electric Co | |
JPS58192154A (en) * | 1982-05-07 | 1983-11-09 | Casio Comput Co Ltd | Memory device having automatic data processing function |
JPH0449142B2 (en) * | 1982-05-07 | 1992-08-10 | Casio Computer Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS626253B2 (en) | 1987-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5533232A (en) | Sequential controller | |
JPS5455132A (en) | Input-output control system | |
JPS54122043A (en) | Electronic computer | |
JPS55121541A (en) | Arithmetic unit | |
JPS5750007A (en) | Numeric controller | |
KR850700166A (en) | Improvements in or about a computer system | |
JPS5696350A (en) | Memory extension system | |
JPS55108057A (en) | Duplex control unit | |
JPS5563442A (en) | Address set control system | |
JPS55103663A (en) | Micro computer composite unit | |
JPS5478635A (en) | Data transfer control circuit | |
JPS5576422A (en) | Terminal unit | |
JPS5556260A (en) | Information processor | |
JPS5574619A (en) | Control system for bus driver | |
JPS54141536A (en) | Information processing system | |
JPS57130149A (en) | System for interruption processing of microprogram control device | |
JPS641368A (en) | Image forming device | |
JPS5640938A (en) | Input/output control unit | |
JPS5330243A (en) | Arithmetic processor | |
JPS5719828A (en) | Data processing equipment | |
JPS51117845A (en) | Electronic computer fault diagnostic equipment | |
JPS57117035A (en) | Data transfer device of asynchronous device | |
JPS5697164A (en) | Test and set and test and reset system | |
JPS5778691A (en) | Prefix conversion control system | |
JPS5734262A (en) | Microcomputer system |