JPS5448459A - Control unit of instruction advance fetch - Google Patents
Control unit of instruction advance fetchInfo
- Publication number
- JPS5448459A JPS5448459A JP11532977A JP11532977A JPS5448459A JP S5448459 A JPS5448459 A JP S5448459A JP 11532977 A JP11532977 A JP 11532977A JP 11532977 A JP11532977 A JP 11532977A JP S5448459 A JPS5448459 A JP S5448459A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- content
- register
- alteration
- advance
- 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 directly renew the instruction word advanced fetch made ineffective at the stage of execution preparation, by giving the instruction register holding the instruction word fetched in advance and the function rewritten for the instruction buffer to the control circuit, when the instruction word fetched in advance with the preceding instruction.
CONSTITUTION: The instruction register is constituted with at least two blocks, and further, according to the content of the instruction counter 26, the alteration block designation circuit 34 having the function designating vacant blocks from two blocks at least is provided, and according to the operation altering the content of the main memory unit or the high speed buffer memory 11 for the preceding instruction, from the content of the operand address register 27 of preceding instruction and the instruction counter 26, the content alteration instruction of the instruction register 32 and the alteration effective block designation in the instruction register 32 are made, and by enabling to replace only the designated block with the content of the output data register 30, the advance fetch instruction word made ineffective can be renewed directly at the stage of execution
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11532977A JPS6027418B2 (en) | 1977-09-26 | 1977-09-26 | Instruction preemption control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11532977A JPS6027418B2 (en) | 1977-09-26 | 1977-09-26 | Instruction preemption control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5448459A true JPS5448459A (en) | 1979-04-17 |
JPS6027418B2 JPS6027418B2 (en) | 1985-06-28 |
Family
ID=14659860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11532977A Expired JPS6027418B2 (en) | 1977-09-26 | 1977-09-26 | Instruction preemption control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6027418B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5795545A (en) * | 1996-05-20 | 1998-08-18 | Motorola Inc. | Integrated ceramic exhaust gas sensors |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61192414U (en) * | 1985-05-22 | 1986-11-29 |
-
1977
- 1977-09-26 JP JP11532977A patent/JPS6027418B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5795545A (en) * | 1996-05-20 | 1998-08-18 | Motorola Inc. | Integrated ceramic exhaust gas sensors |
Also Published As
Publication number | Publication date |
---|---|
JPS6027418B2 (en) | 1985-06-28 |
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