JPS5621261A - Processing system for memory unit read/write - Google Patents
Processing system for memory unit read/writeInfo
- Publication number
- JPS5621261A JPS5621261A JP9702279A JP9702279A JPS5621261A JP S5621261 A JPS5621261 A JP S5621261A JP 9702279 A JP9702279 A JP 9702279A JP 9702279 A JP9702279 A JP 9702279A JP S5621261 A JPS5621261 A JP S5621261A
- Authority
- JP
- Japan
- Prior art keywords
- write
- register
- byte
- address
- content
- 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
Landscapes
- Executing Machine-Instructions (AREA)
- Memory System (AREA)
- Memory System Of A Hierarchy Structure (AREA)
Abstract
PURPOSE: To perform read/write without noticing the boundary, by providing a plurality of area selected with the same line address in one memory unit and constituting that the byte decoder selects any area.
CONSTITUTION: In case of read access, a plurality of address information read out from the tab 2-1 and the bits 8W20 in the content of the register 13 are compared at the comparison circuit 16, and if in agreement, one of the data in 8-byte unit is selected from the data section 2-0, set to the register 12, and if not in agreement, block loading is made with the content of the address register 14. With the bits 27W 31 in the content of the effective address register 13, the byte selection circuit 15 performs area selection and the data section 2-0 is accessed with the write address and the byte selection circuit 15.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54097022A JPS602703B2 (en) | 1979-07-30 | 1979-07-30 | Storage device read/write processing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54097022A JPS602703B2 (en) | 1979-07-30 | 1979-07-30 | Storage device read/write processing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5621261A true JPS5621261A (en) | 1981-02-27 |
JPS602703B2 JPS602703B2 (en) | 1985-01-23 |
Family
ID=14180772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54097022A Expired JPS602703B2 (en) | 1979-07-30 | 1979-07-30 | Storage device read/write processing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS602703B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143483A (en) * | 1982-02-18 | 1983-08-26 | Mitsubishi Electric Corp | Memory address controller |
US5269195A (en) * | 1991-10-22 | 1993-12-14 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Vehicle park lock mechanism |
-
1979
- 1979-07-30 JP JP54097022A patent/JPS602703B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143483A (en) * | 1982-02-18 | 1983-08-26 | Mitsubishi Electric Corp | Memory address controller |
US5269195A (en) * | 1991-10-22 | 1993-12-14 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Vehicle park lock mechanism |
Also Published As
Publication number | Publication date |
---|---|
JPS602703B2 (en) | 1985-01-23 |
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