JPS6486241A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS6486241A JPS6486241A JP63068482A JP6848288A JPS6486241A JP S6486241 A JPS6486241 A JP S6486241A JP 63068482 A JP63068482 A JP 63068482A JP 6848288 A JP6848288 A JP 6848288A JP S6486241 A JPS6486241 A JP S6486241A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- fetching
- address
- reading
- writing
- 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 continuously activate a pre-fetching cycle by determining whether or not a pre-fetching request is executed by the next address of a writing address to write a pre-fetched instruction and the reading address from a reading pointer. CONSTITUTION:When a pre-fetching instruction is written while only one instruction is idle at a queue register 61, a second writing pointer 64 shows the address after a first writing pointer 62 to show a writing address is updated. When the address of a reading pointer 63 is kept as it is when the instruction reading of an executing part is not executed. Consequently, a pre-fetching request preparing circuit 66, when the pre-fetching instruction is written, takes down the instruction pre-fetching request to a bus access control part. When there is room for the queue register 61, the instruction pre-fetching request occurs as it is and an instruction pre-fetching cycle can be continuously activated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63068482A JPS6486241A (en) | 1987-06-02 | 1988-03-22 | Information processor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13914687 | 1987-06-02 | ||
JP63068482A JPS6486241A (en) | 1987-06-02 | 1988-03-22 | Information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486241A true JPS6486241A (en) | 1989-03-30 |
Family
ID=26409702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63068482A Pending JPS6486241A (en) | 1987-06-02 | 1988-03-22 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486241A (en) |
-
1988
- 1988-03-22 JP JP63068482A patent/JPS6486241A/en active Pending
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