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What is the difference between START and XCTL ?

April 26, 2017xctl

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What is the difference between START and XCTL ?

2 Answers

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START is used to start a new task. It is a interval control command. XCTL is used to pass control to a program within the same task. It is a program control command.

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START is used to start a transaction either from a application program or in the background. Once the transaction is started the application program moves ahead in the processing. XCTL is used to transfer control to another program(not a transasction). Once the XCTL command is completed the calling program does not expect the control to come back to itself.