When the 17-character time stamp service returns control to the caller, the registers contain the following:

Register

Contents

0-14

Unchanged.

15

Return code.

The hexadecimal return codes are:

Code

Meaning

00

Successful completion.

04

Bit 0 of the input TOD clock value was off. The service formats the value as though the bit had been on. The caller should use the formatted time stamp with caution. If it is being used as part of a report, the caller might issue a message to the reader to use the time stamp with caution.