JPS5556258A - Priority decision system - Google Patents

Priority decision system

Info

Publication number
JPS5556258A
JPS5556258A JP12871178A JP12871178A JPS5556258A JP S5556258 A JPS5556258 A JP S5556258A JP 12871178 A JP12871178 A JP 12871178A JP 12871178 A JP12871178 A JP 12871178A JP S5556258 A JPS5556258 A JP S5556258A
Authority
JP
Japan
Prior art keywords
interruption
stored
various
address
rom101
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
JP12871178A
Other languages
Japanese (ja)
Other versions
JPS6148742B2 (en
Inventor
Shinji Nishibe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12871178A priority Critical patent/JPS5556258A/en
Publication of JPS5556258A publication Critical patent/JPS5556258A/en
Publication of JPS6148742B2 publication Critical patent/JPS6148742B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To lighten a load upon hardware by making a decision on priority given to various interruption requests of an information processor, by effectively using firmware.
CONSTITUTION: Control memory part P-ROM101 stored with various microprograms is stored with branch microinstruction tables BU-CWBU-A showing start addresses of various interruption processing routines, and auxiliary control memory part E-ROM102 is with the microaddress of a 2nd micro-step; when interruption control signal E/I is sent out at interruption check timing in the finol step of one instruction process, the output operation of E-ROM102 is inhibited and an address is stored in branch instruction assignment address register 103 as an address of P- ROM101 outputted from gates G1WG3 having received interruption signals AWC by types, thereby making jumps to addresses of respective processing routines in the priority order of types AWC.
COPYRIGHT: (C)1980,JPO&Japio
JP12871178A 1978-10-19 1978-10-19 Priority decision system Granted JPS5556258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12871178A JPS5556258A (en) 1978-10-19 1978-10-19 Priority decision system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12871178A JPS5556258A (en) 1978-10-19 1978-10-19 Priority decision system

Publications (2)

Publication Number Publication Date
JPS5556258A true JPS5556258A (en) 1980-04-24
JPS6148742B2 JPS6148742B2 (en) 1986-10-25

Family

ID=14991531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12871178A Granted JPS5556258A (en) 1978-10-19 1978-10-19 Priority decision system

Country Status (1)

Country Link
JP (1) JPS5556258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08214294A (en) * 1994-09-30 1996-08-20 Sgs Thomson Microelectron Sa Control processor for moving image compression circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49111561A (en) * 1973-02-22 1974-10-24
JPS5366337A (en) * 1976-11-26 1978-06-13 Nec Corp Interrupt channel analyzer
JPS54152939A (en) * 1978-05-24 1979-12-01 Fujitsu Ltd Microprogram interruption control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49111561A (en) * 1973-02-22 1974-10-24
JPS5366337A (en) * 1976-11-26 1978-06-13 Nec Corp Interrupt channel analyzer
JPS54152939A (en) * 1978-05-24 1979-12-01 Fujitsu Ltd Microprogram interruption control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08214294A (en) * 1994-09-30 1996-08-20 Sgs Thomson Microelectron Sa Control processor for moving image compression circuit

Also Published As

Publication number Publication date
JPS6148742B2 (en) 1986-10-25

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