JPS55162153A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS55162153A JPS55162153A JP6944079A JP6944079A JPS55162153A JP S55162153 A JPS55162153 A JP S55162153A JP 6944079 A JP6944079 A JP 6944079A JP 6944079 A JP6944079 A JP 6944079A JP S55162153 A JPS55162153 A JP S55162153A
- Authority
- JP
- Japan
- Prior art keywords
- micro
- register
- branch
- instruction
- memory unit
- 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
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To reduce the capacity of a control memory unit by providing the control memory unit with a memory unit which stores microinstructions common among respective micro conditional branch instructions and is accessed corresponding every instruction code.
CONSTITUTION: The instruction code of a micro conditional branch instruction set in microinstruction register 10 is used to read a work, corresponding to the instruction code, from memory unit 11 and the work is set in work register 12. On the basis of address MA of register 12 selected by selecting method 13 from instruction execution start signal ST, access to control memory unit 14 is attained. For a micro branch from unit 14, a common micro branch instruction is read out and at the same time, comparing method 16 checks whether the branch condition assignment part of register 12 agrees with the leading arithmetic result of conditional code register 15. Its coincidence signal is selected by branch selecting method 18 and the address part of the read micro branch instruction is further selected to attain access to unit 14; and the accessed microinstruction is decoded at 22 to execute the micro conditional branch instruction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6944079A JPS55162153A (en) | 1979-06-05 | 1979-06-05 | Information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6944079A JPS55162153A (en) | 1979-06-05 | 1979-06-05 | Information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55162153A true JPS55162153A (en) | 1980-12-17 |
Family
ID=13402689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6944079A Pending JPS55162153A (en) | 1979-06-05 | 1979-06-05 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55162153A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59135546A (en) * | 1983-01-24 | 1984-08-03 | Sanyo Electric Co Ltd | Arithmetic processor |
-
1979
- 1979-06-05 JP JP6944079A patent/JPS55162153A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59135546A (en) * | 1983-01-24 | 1984-08-03 | Sanyo Electric Co Ltd | Arithmetic processor |
JPH0218501B2 (en) * | 1983-01-24 | 1990-04-25 | Sanyo Electric Co |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4954943A (en) | Data processing system | |
JPS57176457A (en) | Data processor | |
KR920004279B1 (en) | Microprocessor with pointer register | |
EP0240606B1 (en) | Pipe-line processing system and microprocessor using the system | |
JPS6212529B2 (en) | ||
JPS55162153A (en) | Information processor | |
CA1171969A (en) | Instruction decoding in data processing apparatus | |
JPS57756A (en) | Data processor | |
JPS5731049A (en) | Information processing equipment | |
JPS56147246A (en) | Program control device | |
JPS57105038A (en) | Operand processing method of ss-type instruction | |
US4511983A (en) | Apparatus for controlling microinstructions stored in a data processing unit memory | |
JPS5617441A (en) | Program interruption system | |
JPS578851A (en) | Parallel processing system | |
JPS57101945A (en) | Control system of information processor | |
JPS5668878A (en) | Data processor | |
JPS5481737A (en) | Information processor | |
JPS5633746A (en) | Arithmetic processor having logging function | |
JPS5556253A (en) | Data processor | |
EP0264215A3 (en) | Fast entry to emulation | |
JPS57168345A (en) | Data processing device | |
SE8500156D0 (en) | PROCEDURE FOR PROCESSING MACHINE-CODED INSTRUCTION WORDS AND DATA PROCESSOR FOR EXECUTING THE PROCEDURE | |
JPS54152941A (en) | Execution address memory system of information processor | |
JPS54105442A (en) | Microprogram control system | |
JPS5642858A (en) | Microprogram control system |