JPS5636743A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS5636743A
JPS5636743A JP11134879A JP11134879A JPS5636743A JP S5636743 A JPS5636743 A JP S5636743A JP 11134879 A JP11134879 A JP 11134879A JP 11134879 A JP11134879 A JP 11134879A JP S5636743 A JPS5636743 A JP S5636743A
Authority
JP
Japan
Prior art keywords
register
microprogram
memory
processing level
subroutines
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
JP11134879A
Other languages
Japanese (ja)
Other versions
JPS6161139B2 (en
Inventor
Yoshiharu Torii
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11134879A priority Critical patent/JPS5636743A/en
Publication of JPS5636743A publication Critical patent/JPS5636743A/en
Publication of JPS6161139B2 publication Critical patent/JPS6161139B2/ja
Granted legal-status Critical Current

Links

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  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE: To make it easy to multiply subroutines by storing return addresses of subroutines in a scratch memory which can be addressed corresponding to the processing level of a microprogram.
CONSTITUTION: Microprogram processing level control circuit 100 and microprogram executing circuit 102 are connected together via processing level indication line 1001. control circuit 100 and scratch pad memory address register 104 are also connected via signal line 1002. Memory 101 is connected to register 104 via address line 1003 and further to register 105 via data line 1004. Register 105 is connected to register 106, memory 103 is connected to registers 105 and 106, and register 107 is connected to program executing circuit 102; and return addresses of subroutines are stored in a scratch pad memory which can be addressed corresponding to the processing level of a microprogram, so that subroutine can be multiplied.
COPYRIGHT: (C)1981,JPO&Japio
JP11134879A 1979-08-31 1979-08-31 Microprogram controller Granted JPS5636743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11134879A JPS5636743A (en) 1979-08-31 1979-08-31 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11134879A JPS5636743A (en) 1979-08-31 1979-08-31 Microprogram controller

Publications (2)

Publication Number Publication Date
JPS5636743A true JPS5636743A (en) 1981-04-10
JPS6161139B2 JPS6161139B2 (en) 1986-12-24

Family

ID=14558907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11134879A Granted JPS5636743A (en) 1979-08-31 1979-08-31 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS5636743A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039246A (en) * 1983-08-12 1985-03-01 Nippon Telegr & Teleph Corp <Ntt> Sequence control circuit
JPS6294747A (en) * 1985-10-21 1987-05-01 Mayekawa Mfg Co Ltd Cooling apparatus
JPH02142904U (en) * 1990-05-09 1990-12-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039246A (en) * 1983-08-12 1985-03-01 Nippon Telegr & Teleph Corp <Ntt> Sequence control circuit
JPS6313217B2 (en) * 1983-08-12 1988-03-24 Nippon Telegraph & Telephone
JPS6294747A (en) * 1985-10-21 1987-05-01 Mayekawa Mfg Co Ltd Cooling apparatus
JPH02142904U (en) * 1990-05-09 1990-12-04

Also Published As

Publication number Publication date
JPS6161139B2 (en) 1986-12-24

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