JPS57101947A - Bit processing method of microcomputer - Google Patents

Bit processing method of microcomputer

Info

Publication number
JPS57101947A
JPS57101947A JP55178335A JP17833580A JPS57101947A JP S57101947 A JPS57101947 A JP S57101947A JP 55178335 A JP55178335 A JP 55178335A JP 17833580 A JP17833580 A JP 17833580A JP S57101947 A JPS57101947 A JP S57101947A
Authority
JP
Japan
Prior art keywords
port
executed
terminal
data
terminals
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
JP55178335A
Other languages
Japanese (ja)
Inventor
Osamu Ikeda
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP55178335A priority Critical patent/JPS57101947A/en
Publication of JPS57101947A publication Critical patent/JPS57101947A/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
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/30007—Arrangements for executing specific machine instructions to perform operations on data operands
    • G06F9/30018—Bit or string instructions

Abstract

PURPOSE:To set or reset an output terminal without requiring a special circuit, by so constituting that the bit processing of an output port is executed by making use of an operation logical unit. CONSTITUTION:In case a0 is set in a state that output terminals of an A port are 0110, a data outputted to the A port is inputted to one terminal of an operation logical unit 14 through a bus line 12 by setting a port designating signal SPa and a signal LIO to ''1''. On the other hand, to the other input of the unit 14, 0001 is provided from a decoder 20, the operation is executed by operation contorl signals C1-C3, and 0111 is sent out to a line 12. The data 0111 on the line 12 is outputted to the A port through a storage circuit 23, accordingly, the terminal a0 becomes ''1'' and is set. Subsequently, in case a terminal b1 is set or inverted in a state that output terminals b0-b3 of a B port are 0110, a data of the terminals b0-b3 is provided to the unit 14 in the same way, a necessary operation is executed, and said data is sent out to the terminals b0-b3, by which the processing is executed.
JP55178335A 1980-12-16 1980-12-16 Bit processing method of microcomputer Pending JPS57101947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178335A JPS57101947A (en) 1980-12-16 1980-12-16 Bit processing method of microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178335A JPS57101947A (en) 1980-12-16 1980-12-16 Bit processing method of microcomputer

Publications (1)

Publication Number Publication Date
JPS57101947A true JPS57101947A (en) 1982-06-24

Family

ID=16046684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178335A Pending JPS57101947A (en) 1980-12-16 1980-12-16 Bit processing method of microcomputer

Country Status (1)

Country Link
JP (1) JPS57101947A (en)

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