JPS5621237A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS5621237A JPS5621237A JP9703679A JP9703679A JPS5621237A JP S5621237 A JPS5621237 A JP S5621237A JP 9703679 A JP9703679 A JP 9703679A JP 9703679 A JP9703679 A JP 9703679A JP S5621237 A JPS5621237 A JP S5621237A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- storage area
- execution step
- composite
- stored
- 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 enable the addition of new macro instruction, by storing the procedure of execution to composite instruction in advance in the instruction execution step storage area of main memory.
CONSTITUTION: The instruction is read out from the software storage area 15, stored in the instruction buffer 3 and interpreted at the decoder 4. In case of composite instruction, the instruction detection signal is on, the selector 8 selects the inlet address information and reads out the instruction from the inlet address of the instruction execution step storage area. The instruction execution step is sequentially stored with the central processing unit 1 and the instruction signal is OFF with the final instruction and the system returns to normal operation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9703679A JPS5621237A (en) | 1979-07-30 | 1979-07-30 | Information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9703679A JPS5621237A (en) | 1979-07-30 | 1979-07-30 | Information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5621237A true JPS5621237A (en) | 1981-02-27 |
Family
ID=14181303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9703679A Pending JPS5621237A (en) | 1979-07-30 | 1979-07-30 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621237A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5971550A (en) * | 1982-09-30 | 1984-04-23 | Fujitsu Ltd | Instruction processing system |
JPS59200345A (en) * | 1983-04-26 | 1984-11-13 | Nec Corp | Microprogram control system |
JPS6083142A (en) * | 1983-10-14 | 1985-05-11 | Nec Corp | Microprogram controller |
JPS62140158A (en) * | 1985-12-16 | 1987-06-23 | Hitachi Ltd | Information processor |
JPS6349940A (en) * | 1986-08-20 | 1988-03-02 | Nippon Telegr & Teleph Corp <Ntt> | Electronic computer |
JPS63173130A (en) * | 1986-12-30 | 1988-07-16 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Apparatus for expanding instruction set of computer |
US6065112A (en) * | 1997-06-18 | 2000-05-16 | Matsushita Electric Industrial Co., Ltd. | Microprocessor with arithmetic processing units and arithmetic execution unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938537A (en) * | 1972-08-11 | 1974-04-10 |
-
1979
- 1979-07-30 JP JP9703679A patent/JPS5621237A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938537A (en) * | 1972-08-11 | 1974-04-10 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5971550A (en) * | 1982-09-30 | 1984-04-23 | Fujitsu Ltd | Instruction processing system |
JPH0221613B2 (en) * | 1982-09-30 | 1990-05-15 | Fujitsu Ltd | |
JPS59200345A (en) * | 1983-04-26 | 1984-11-13 | Nec Corp | Microprogram control system |
JPS6083142A (en) * | 1983-10-14 | 1985-05-11 | Nec Corp | Microprogram controller |
JPS62140158A (en) * | 1985-12-16 | 1987-06-23 | Hitachi Ltd | Information processor |
JPS6349940A (en) * | 1986-08-20 | 1988-03-02 | Nippon Telegr & Teleph Corp <Ntt> | Electronic computer |
JPS63173130A (en) * | 1986-12-30 | 1988-07-16 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Apparatus for expanding instruction set of computer |
US6065112A (en) * | 1997-06-18 | 2000-05-16 | Matsushita Electric Industrial Co., Ltd. | Microprocessor with arithmetic processing units and arithmetic execution unit |
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