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JPS5543635A - Data processor of microprogram control - Google Patents

Data processor of microprogram control

Info

Publication number
JPS5543635A
JPS5543635A JP11592578A JP11592578A JPS5543635A JP S5543635 A JPS5543635 A JP S5543635A JP 11592578 A JP11592578 A JP 11592578A JP 11592578 A JP11592578 A JP 11592578A JP S5543635 A JPS5543635 A JP S5543635A
Authority
JP
Japan
Prior art keywords
fetch
macroorder
microorder
microprogram
detected
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
Application number
JP11592578A
Other languages
Japanese (ja)
Other versions
JPS6115457B2 (en
Inventor
Hideo Maejima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11592578A priority Critical patent/JPS5543635A/en
Publication of JPS5543635A publication Critical patent/JPS5543635A/en
Publication of JPS6115457B2 publication Critical patent/JPS6115457B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To realize a high-speed process with a short length of the microorder word by starting the fetch control for the macroorder at the wake-up caused by the microorder and giving the random logic control thereafter based on no microorder.
CONSTITUTION: The microprogram order indicating the start of the microorder fetch is detected through the specific pattern detection circuit. Based on the output of the detection circuit, macroorder fetch procedure control means 100 is started. Then the microprogram head address is produced through selection control means 104 for execution of the macroorder based on the decoding result of macroorder decoder circuit 103, thus carrying out the macroorder fetch. After the fetch end is detected by fetch end detection means 101, the output of means 104 is utilized.
COPYRIGHT: (C)1980,JPO&Japio
JP11592578A 1978-09-22 1978-09-22 Data processor of microprogram control Granted JPS5543635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11592578A JPS5543635A (en) 1978-09-22 1978-09-22 Data processor of microprogram control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11592578A JPS5543635A (en) 1978-09-22 1978-09-22 Data processor of microprogram control

Publications (2)

Publication Number Publication Date
JPS5543635A true JPS5543635A (en) 1980-03-27
JPS6115457B2 JPS6115457B2 (en) 1986-04-24

Family

ID=14674581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11592578A Granted JPS5543635A (en) 1978-09-22 1978-09-22 Data processor of microprogram control

Country Status (1)

Country Link
JP (1) JPS5543635A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6376016A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Command fetch method
JPS6376015A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Instruction fetch controller
JPS63149733A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetch controller
JPS63149735A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetching system
JPS63149734A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetching system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6445250U (en) * 1987-09-11 1989-03-17

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6376016A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Command fetch method
JPS6376015A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Instruction fetch controller
JPS63149733A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetch controller
JPS63149735A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetching system
JPS63149734A (en) * 1986-12-15 1988-06-22 Fujitsu Ltd Instruction fetching system

Also Published As

Publication number Publication date
JPS6115457B2 (en) 1986-04-24

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