JPS57199046A - Microprogram controlling method - Google Patents

Microprogram controlling method

Info

Publication number
JPS57199046A
JPS57199046A JP8544681A JP8544681A JPS57199046A JP S57199046 A JPS57199046 A JP S57199046A JP 8544681 A JP8544681 A JP 8544681A JP 8544681 A JP8544681 A JP 8544681A JP S57199046 A JPS57199046 A JP S57199046A
Authority
JP
Japan
Prior art keywords
address
generated
microprogram
gate
addresses
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.)
Pending
Application number
JP8544681A
Other languages
Japanese (ja)
Inventor
Yokichi Ono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8544681A priority Critical patent/JPS57199046A/en
Publication of JPS57199046A publication Critical patent/JPS57199046A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/268—Microinstruction selection not based on processing results, e.g. interrupt, patch, first cycle store, diagnostic programs

Abstract

PURPOSE:To make an optional address allocation of a microprogram possible to simplify the generation of the program by composing 2 start addresses when instruction code is outputted and control instruction processing programs in one way by a decoder. CONSTITUTION:The start address of a microprogram executed and processed in an instruction decoder 2 is generated in an execution processing start address part 21, and the common processing start address is generated in a common processing start address part 22 by decoding instructions of the machine language. Information to select addresses generated in address parts 21 and 22 is generated in a selecting information generating part 23, and start addresses of the address part 21 and 22 are selected by a selecting gate 24. Respective start addresses selected by the gate 24 are stored temporarily in a buffer register 25, and the output of the register 25 is set to a microprogram address register 3 through a gate 8, thus simplifying the generation of programs.
JP8544681A 1981-06-03 1981-06-03 Microprogram controlling method Pending JPS57199046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8544681A JPS57199046A (en) 1981-06-03 1981-06-03 Microprogram controlling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8544681A JPS57199046A (en) 1981-06-03 1981-06-03 Microprogram controlling method

Publications (1)

Publication Number Publication Date
JPS57199046A true JPS57199046A (en) 1982-12-06

Family

ID=13859096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8544681A Pending JPS57199046A (en) 1981-06-03 1981-06-03 Microprogram controlling method

Country Status (1)

Country Link
JP (1) JPS57199046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174947A (en) * 1983-03-25 1984-10-03 Fujitsu Ltd System for controlling order of microprogram
JPS59229648A (en) * 1983-03-31 1984-12-24 フエアチアイルド・カメラ・アンド・インストルメント・コ−ポレ−シヨン Microprocessor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113541A (en) * 1973-02-26 1974-10-30
JPS5537656A (en) * 1978-09-08 1980-03-15 Fujitsu Ltd Microprogram control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113541A (en) * 1973-02-26 1974-10-30
JPS5537656A (en) * 1978-09-08 1980-03-15 Fujitsu Ltd Microprogram control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174947A (en) * 1983-03-25 1984-10-03 Fujitsu Ltd System for controlling order of microprogram
JPH0332814B2 (en) * 1983-03-25 1991-05-14 Fujitsu Ltd
JPS59229648A (en) * 1983-03-31 1984-12-24 フエアチアイルド・カメラ・アンド・インストルメント・コ−ポレ−シヨン Microprocessor

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