JPS54102937A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS54102937A JPS54102937A JP949978A JP949978A JPS54102937A JP S54102937 A JPS54102937 A JP S54102937A JP 949978 A JP949978 A JP 949978A JP 949978 A JP949978 A JP 949978A JP S54102937 A JPS54102937 A JP S54102937A
- Authority
- JP
- Japan
- Prior art keywords
- idx
- microorder
- execution
- information processor
- circuit
- 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 enhance the performance of the information processor greatly by installing the means which checks the contents of the operation code part within the microorder and the index modification part to memorize the results of the checking plus the subroutine means which carries out the microorder.
CONSTITUTION: The microorder read out from main memory 1 is set to microorder register 2 and then decoded through the decoder circuit. At the same time, the contents are decided at checking circuit 5 for both operation code part 3 and index modification IDX part 4 to give the identification for IDX. In case the execution of IDX is decided, circuit 5 delivers 1. At this instant, gate 7 is opened with timing t1 to set IDXFF6. On the other hand, in case condition signal COND to check the possibility for execution of IDX, the trap signal is transmitted via gate 8 when FF6 is on to be then branched off to the fixed address where the subroutine for execution of IDX is stored. Thus, IDX is carried out. As a result, the performance of the information processor can be enhanced with reduction of the control memory.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP949978A JPS54102937A (en) | 1978-01-31 | 1978-01-31 | Information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP949978A JPS54102937A (en) | 1978-01-31 | 1978-01-31 | Information processor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54102937A true JPS54102937A (en) | 1979-08-13 |
JPS6110857B2 JPS6110857B2 (en) | 1986-03-31 |
Family
ID=11721919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP949978A Granted JPS54102937A (en) | 1978-01-31 | 1978-01-31 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54102937A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6079431A (en) * | 1983-10-06 | 1985-05-07 | Hitachi Ltd | Programmable controller |
-
1978
- 1978-01-31 JP JP949978A patent/JPS54102937A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6079431A (en) * | 1983-10-06 | 1985-05-07 | Hitachi Ltd | Programmable controller |
JPH024010B2 (en) * | 1983-10-06 | 1990-01-25 | Hitachi Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6110857B2 (en) | 1986-03-31 |
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