Before invoking either service, the caller must ensure that the following general purpose registers (GPRs) contain the specified information:

Register

Contents

1

If using a call, the address of 2 fullwords in the primary address space:

• First fullword contains the address of an 26-byte character input area. The format of the area is: mm/dd/yyyy,hh:mm:ss.ffffff.
• The second fullword contains the address of an 8-byte time-of-day (STCK TOD) clock value for the BLSUXTID output area or contains the address of a 16-byte time-of-day (STCKE TOD) clock value for the BLSUETID output area.

Note: If using a LINK macro, specify the addresses of the fullwords in the PARAM parameter.

13

Address of a 72-byte register save area, which is in the primary address space.

14

Return address. Bit 0 must contain 1 to indicate that control is to be returned in 31-bit addressing mode or contain 0 to indicate 24-bit addressing mode.

15

The entry point address of the 26-character time stamp service, BLSUXTID or BLSUETID.