JPS5714948A - Microprogram control circuit - Google Patents

Microprogram control circuit

Info

Publication number
JPS5714948A
JPS5714948A JP8893480A JP8893480A JPS5714948A JP S5714948 A JPS5714948 A JP S5714948A JP 8893480 A JP8893480 A JP 8893480A JP 8893480 A JP8893480 A JP 8893480A JP S5714948 A JPS5714948 A JP S5714948A
Authority
JP
Japan
Prior art keywords
flop
flip
program counter
microprogram control
control 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.)
Pending
Application number
JP8893480A
Other languages
Japanese (ja)
Inventor
Shinsuke Mizutani
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP8893480A priority Critical patent/JPS5714948A/en
Publication of JPS5714948A publication Critical patent/JPS5714948A/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

Abstract

PURPOSE:To facilitate an easy control of the jumping address for a microprogram control device, by making use of a set or reset terminal of a flip-flop that constitutes a program counter. CONSTITUTION:The program counter of a microprogram control device consists of a flip-flop. The set or reset terminal of the flip-flop is connected to the output of a microinstruction decoder to be used for the setting of the jumping address for the CALL instruction, the JUMP instruction and the like of the microinstruction. The diagram shows the n-th step circuit of a program counter. The signal exists on a line 13 in the case of a CALL instruction for instance, and thus a flip-flop 3 of the program counter is set.
JP8893480A 1980-06-30 1980-06-30 Microprogram control circuit Pending JPS5714948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8893480A JPS5714948A (en) 1980-06-30 1980-06-30 Microprogram control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8893480A JPS5714948A (en) 1980-06-30 1980-06-30 Microprogram control circuit

Publications (1)

Publication Number Publication Date
JPS5714948A true JPS5714948A (en) 1982-01-26

Family

ID=13956713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8893480A Pending JPS5714948A (en) 1980-06-30 1980-06-30 Microprogram control circuit

Country Status (1)

Country Link
JP (1) JPS5714948A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS628076U (en) * 1985-06-27 1987-01-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS628076U (en) * 1985-06-27 1987-01-19

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