JPS55108052A - Data processing system - Google Patents
Data processing systemInfo
- Publication number
- JPS55108052A JPS55108052A JP1412079A JP1412079A JPS55108052A JP S55108052 A JPS55108052 A JP S55108052A JP 1412079 A JP1412079 A JP 1412079A JP 1412079 A JP1412079 A JP 1412079A JP S55108052 A JPS55108052 A JP S55108052A
- Authority
- JP
- Japan
- Prior art keywords
- address area
- ram
- rom1
- ram2
- register
- 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 enable to use the entire areas of RAM effectively, by accessing the address area of RAM duplicated with ROM and using the address area of RAM hidden with ROM as the set of the register separate from the memory space.
CONSTITUTION: The processor 5 is provided with the microprogram counter 10, and microinstruction register 11, and ROM1 and RAM2 have a part of address area duplicatedly. If specific microlinstruction is set to the register 11 of the unit 3, the address area of RAM2 duplicated with ROM1 is accessed. Thus, the address area of RAM2 hidden with ROM1 is used as the set of separate registers from the memory space to enable to use the entire areas of RAM without waste.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1412079A JPS55108052A (en) | 1979-02-09 | 1979-02-09 | Data processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1412079A JPS55108052A (en) | 1979-02-09 | 1979-02-09 | Data processing system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55108052A true JPS55108052A (en) | 1980-08-19 |
JPS6353573B2 JPS6353573B2 (en) | 1988-10-24 |
Family
ID=11852253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1412079A Granted JPS55108052A (en) | 1979-02-09 | 1979-02-09 | Data processing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55108052A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58225458A (en) * | 1982-06-25 | 1983-12-27 | Nec Corp | Single-chip microcomputer |
JP2011175445A (en) * | 2010-02-24 | 2011-09-08 | Renesas Electronics Corp | Semiconductor device and data processing system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5014103A (en) * | 1973-06-11 | 1975-02-14 | ||
JPS5092063A (en) * | 1973-12-12 | 1975-07-23 | ||
JPS5228823A (en) * | 1975-08-29 | 1977-03-04 | Sharp Corp | Rom control system |
JPS5344134A (en) * | 1976-10-04 | 1978-04-20 | Oki Electric Ind Co Ltd | Microprogram control system |
-
1979
- 1979-02-09 JP JP1412079A patent/JPS55108052A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5014103A (en) * | 1973-06-11 | 1975-02-14 | ||
JPS5092063A (en) * | 1973-12-12 | 1975-07-23 | ||
JPS5228823A (en) * | 1975-08-29 | 1977-03-04 | Sharp Corp | Rom control system |
JPS5344134A (en) * | 1976-10-04 | 1978-04-20 | Oki Electric Ind Co Ltd | Microprogram control system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58225458A (en) * | 1982-06-25 | 1983-12-27 | Nec Corp | Single-chip microcomputer |
JP2011175445A (en) * | 2010-02-24 | 2011-09-08 | Renesas Electronics Corp | Semiconductor device and data processing system |
US9298657B2 (en) | 2010-02-24 | 2016-03-29 | Renesas Electronics Corporation | Semiconductor device and data processing system |
Also Published As
Publication number | Publication date |
---|---|
JPS6353573B2 (en) | 1988-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS564862A (en) | Computer system | |
JPS55105763A (en) | Address instruction system | |
JPS5464439A (en) | Address designation system | |
JPS55108052A (en) | Data processing system | |
JPS5334442A (en) | Multi-processor system | |
JPS53113446A (en) | Information processor and its method | |
JPS5282035A (en) | Data processing unit | |
JPS55108069A (en) | Multiprocessor processing system | |
JPS5760451A (en) | Fixed data read-out system | |
JPS55118170A (en) | Memory access device | |
JPS5794999A (en) | Protection system for microinstruction control memory | |
JPS5436144A (en) | Address conversion unit | |
JPS53130943A (en) | Microprogram control system | |
JPS53142841A (en) | Data processor | |
JPS5617441A (en) | Program interruption system | |
JPS54108539A (en) | Virtual memory control system of information processor | |
JPS5454546A (en) | Branch address determining system in data processing unit of microprogram control system | |
JPS55113182A (en) | Virtual computer system with tlb | |
JPS5591034A (en) | Fault detection system | |
JPS5528114A (en) | Display system of program execution level | |
JPS5563455A (en) | Memory system | |
JPS5621245A (en) | Detection system of address coincidence system | |
JPS5440538A (en) | Multiple data processor | |
JPS5563423A (en) | Data transfer system | |
JPS5439541A (en) | Data processor |