User Exit Reference › USREXIT8 User Exit (TMC Reformat User Exit) (OS TMCs Only)

USREXIT8 User Exit (TMC Reformat User Exit) (OS TMCs Only)

Use the USREXIT8 user exit to directly modify TMC records to allow compatibility with tape management systems that have different TMC formats. The READ and WRITE parameters indicate the direction of the modification. Use of this exit is optional.

The exit must be written in assembler and must be reusable each time it is called.