2-2
2.1 How to Read Instruction Tables
2.1
How to Read Instruction Tables
Instruction tables in Section 2.2 have the following form:
Description
Classifies instructions by application.
Indicates the instructions used in a program.
Indicates the arguments of the instruction.
, : Source............. Stores data before operation.
, : Destination ...... Indicates the destination of data after operation.
, : ........................ Specifies the number of devices and the number of transfers.
: ............................. Specifies the network number.
: ............................. Specifies the start I/O number of a module.
Indicates the processing details of each instruction.
Details of executing condition of each instruction are as follows:
Indicates the pages on which the instructions are explained.
Symbol
Executing condition
Indicates an 'executed while ON' type instruction that is executed only while the precondition is ON. When
the precondition is OFF, the instruction is not executed and does not perform processing.
Indicates an 'executed once at ON' type instruction that is executed only at the rising pulse (OFF
ON) of
the precondition of the instruction. The instruction is not executed afterwards even when the condition is ON
and thus does not perform processing.
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Содержание QCPU
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