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TIBCO® Managed File Transfer Platform Server for z/OS 8.1.0

# Register Settings

You must set the registers at entry to and upon return from FUSCFAPI.

At entry to FUSCFAPI, you must set the following registers:

- R1: Address of the address of APIDSECT
- R13: Save area address
- R14: Return address
- R15: Address of FUSCFAPI entry point

Upon return from FUSCFAPI, you must set the following registers:

- R0 - R14: Unchanged
- R15: Return code of the request

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