JPS57200984A - Information stack system - Google Patents
Information stack systemInfo
- Publication number
- JPS57200984A JPS57200984A JP56085097A JP8509781A JPS57200984A JP S57200984 A JPS57200984 A JP S57200984A JP 56085097 A JP56085097 A JP 56085097A JP 8509781 A JP8509781 A JP 8509781A JP S57200984 A JPS57200984 A JP S57200984A
- Authority
- JP
- Japan
- Prior art keywords
- stacker
- read
- interruption
- executed
- stack
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/04—Arrangements for selecting an address in a digital store using a sequential addressing device, e.g. shift register, counter
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE:To expand the capacity of a stacker, by comparing the contents of a stacker pointer with a prescribed value, and deciding a state of a stacker, when executing an interruption in case when write or read-out has been executed in a state that the stacker is full or idle. CONSTITUTION:A part of a memory is set as a stack area, and write and read- out are executed to an address of a stack area instructed by a stacker pointer SKTP which is added or subtracted by ''1'' whenever information is written or read out. In this state, in case when write exceeding the upper limit address of the stack area has been executed, an interruption is generated, contents of the stack are saved into a storage area, and in case when read-out exceeding the lower limit address has been executed, the saved information is restored by generating an interruption, and read-out is continued. Subsequently, a signal IR of interruption compares the contents of the pointer with the upper limit address 10 and the lower limit address 12 by comparators 14, 16, and outputs its result from an OR circuit 18. In this way, the capacity of the stack can be used as an endless capacity substantially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56085097A JPS57200984A (en) | 1981-06-03 | 1981-06-03 | Information stack system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56085097A JPS57200984A (en) | 1981-06-03 | 1981-06-03 | Information stack system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57200984A true JPS57200984A (en) | 1982-12-09 |
Family
ID=13849098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56085097A Pending JPS57200984A (en) | 1981-06-03 | 1981-06-03 | Information stack system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200984A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6057439A (en) * | 1983-09-08 | 1985-04-03 | Matsushita Electric Ind Co Ltd | Stack overflow detector |
| JPS61285543A (en) * | 1985-06-12 | 1986-12-16 | Casio Comput Co Ltd | Compact electronic appliance |
| EP0217358A2 (en) * | 1985-10-02 | 1987-04-08 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Method and circuitry for the contents addressing of a memory |
| JP5280195B2 (en) * | 2006-03-02 | 2013-09-04 | ダウ・コーニング・コーポレイション | High energy ray curable composition |
-
1981
- 1981-06-03 JP JP56085097A patent/JPS57200984A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6057439A (en) * | 1983-09-08 | 1985-04-03 | Matsushita Electric Ind Co Ltd | Stack overflow detector |
| JPS61285543A (en) * | 1985-06-12 | 1986-12-16 | Casio Comput Co Ltd | Compact electronic appliance |
| EP0217358A2 (en) * | 1985-10-02 | 1987-04-08 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Method and circuitry for the contents addressing of a memory |
| JP5280195B2 (en) * | 2006-03-02 | 2013-09-04 | ダウ・コーニング・コーポレイション | High energy ray curable composition |
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