JPS5696335A - Computer using microprogram system - Google Patents
Computer using microprogram systemInfo
- Publication number
- JPS5696335A JPS5696335A JP17256279A JP17256279A JPS5696335A JP S5696335 A JPS5696335 A JP S5696335A JP 17256279 A JP17256279 A JP 17256279A JP 17256279 A JP17256279 A JP 17256279A JP S5696335 A JPS5696335 A JP S5696335A
- Authority
- JP
- Japan
- Prior art keywords
- microprogram
- micro instruction
- output
- transmission
- external
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To facilitate checking the microprogram, by causing the microprocessor itself to output all of the microprogram to the external by executing micro instructions.
CONSTITUTION: When the micro instruction for microprogram transmission is written in micro instruction register 6, control circuit 10 for microprogram transmission detects it to inhibit the write of a new micro instruction. Further, program counter value generating circuit 4 is instructed to increase the value of microprogram counter 3 one by one, and execution start of the micro instruction for microprogram transmission is reported to CPU control circuit 8. Thus, contents of microprogram addresses are output from memory 5 to bus 11 and are output to the external in the address order.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17256279A JPS5696335A (en) | 1979-12-28 | 1979-12-28 | Computer using microprogram system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17256279A JPS5696335A (en) | 1979-12-28 | 1979-12-28 | Computer using microprogram system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5696335A true JPS5696335A (en) | 1981-08-04 |
Family
ID=15944144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17256279A Pending JPS5696335A (en) | 1979-12-28 | 1979-12-28 | Computer using microprogram system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5696335A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50114139A (en) * | 1974-02-15 | 1975-09-06 | ||
JPS51136257A (en) * | 1975-05-21 | 1976-11-25 | Nec Corp | Copy of stored program |
JPS543444A (en) * | 1977-06-10 | 1979-01-11 | Hitachi Ltd | Error detection system |
-
1979
- 1979-12-28 JP JP17256279A patent/JPS5696335A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50114139A (en) * | 1974-02-15 | 1975-09-06 | ||
JPS51136257A (en) * | 1975-05-21 | 1976-11-25 | Nec Corp | Copy of stored program |
JPS543444A (en) * | 1977-06-10 | 1979-01-11 | Hitachi Ltd | Error detection system |
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