JPS6444544A - Program control system - Google Patents
Program control systemInfo
- Publication number
- JPS6444544A JPS6444544A JP62199860A JP19986087A JPS6444544A JP S6444544 A JPS6444544 A JP S6444544A JP 62199860 A JP62199860 A JP 62199860A JP 19986087 A JP19986087 A JP 19986087A JP S6444544 A JPS6444544 A JP S6444544A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- circuit
- switching
- control
- decoding
- 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 use the same bits for control instructions in command and to reduce the number of bits by coding a control instruction for switching between multiplication and division for two control instructions in a register and a buffer and error correcting operation at the time of outputting an operation executing instruction and adding decoding circuits for executing decoding following to said coding. CONSTITUTION:A program instruction is constituted of one word consisting of 11 bits and switching between an error correcting instruction and a control instruction is executed by a condition deciding circuit 46. A program counter 44 is controlled by an output from the circuit 46 to control the address of a program ROM 43. A register decoding circuit 48 and a buffer decoding circuit 49 decode the control instruction by the output of the ROM 43 and a real data decoding circuit 60 converts complete real data to be used for error correction. A Y-ROM 56 in an error correcting operation circuit 28 reversely converts the data and controls bus switching between buses 59, 58 to execute switching between multiplication and division.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199860A JPS6444544A (en) | 1987-08-12 | 1987-08-12 | Program control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199860A JPS6444544A (en) | 1987-08-12 | 1987-08-12 | Program control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444544A true JPS6444544A (en) | 1989-02-16 |
Family
ID=16414852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62199860A Pending JPS6444544A (en) | 1987-08-12 | 1987-08-12 | Program control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444544A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2375555A1 (en) | 2010-03-26 | 2011-10-12 | Tohoku Ricoh Co., Ltd. | High voltage inverter device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330841A (en) * | 1976-09-03 | 1978-03-23 | Nippon Signal Co Ltd:The | Control method of computer |
JPS55154635A (en) * | 1979-05-21 | 1980-12-02 | Hitachi Ltd | Data processor |
JPS5747449A (en) * | 1980-09-05 | 1982-03-18 | Nitta Zerachin Kk | Foamed food containing fats and oils |
JPS60103562A (en) * | 1983-11-11 | 1985-06-07 | Hitachi Ltd | Error correction device |
JPS61103241A (en) * | 1984-10-27 | 1986-05-21 | Nec Corp | Information processor |
JPS6298428A (en) * | 1985-10-25 | 1987-05-07 | Hitachi Ltd | Data processing system |
-
1987
- 1987-08-12 JP JP62199860A patent/JPS6444544A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330841A (en) * | 1976-09-03 | 1978-03-23 | Nippon Signal Co Ltd:The | Control method of computer |
JPS55154635A (en) * | 1979-05-21 | 1980-12-02 | Hitachi Ltd | Data processor |
JPS5747449A (en) * | 1980-09-05 | 1982-03-18 | Nitta Zerachin Kk | Foamed food containing fats and oils |
JPS60103562A (en) * | 1983-11-11 | 1985-06-07 | Hitachi Ltd | Error correction device |
JPS61103241A (en) * | 1984-10-27 | 1986-05-21 | Nec Corp | Information processor |
JPS6298428A (en) * | 1985-10-25 | 1987-05-07 | Hitachi Ltd | Data processing system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2375555A1 (en) | 2010-03-26 | 2011-10-12 | Tohoku Ricoh Co., Ltd. | High voltage inverter device |
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