Registers at exit

Upon return from this exit, the register contents must be:

Register

Contents

0-14

Restored to contents at entry

15

For an encrypt operation, one of the following return codes:

Value: Meaning
0: The exit has encrypted the data and placed the results in the area pointed to by the address at offset 16 (X'10') in the parameter list. The length of the encrypted data must be the same as that of the clear text data.
4: The exit has not encrypted the data. RACF® is to encrypt the data, using the masking algorithm.
8: The exit has not encrypted the data. RACF is to encrypt the data, using the RACF DES algorithm.
16: The exit has not encrypted the data. RACF is to encrypt the data, using the RACF DES algorithm.

Note: If register 15 contains any other value, RACF treats it as a return code of 4.