Register 1 contains the address of the ARCINEXT parameter list as shown in Table 1.
| Offset | Length or Bit Pattern | Description |
|---|---|---|
| 00 (X'00') | 4 | The address of the MCVT control block. |
| 04 (X'04') | 4 | The address of a fullword binary return code field. This field is not used by . There are no return codes for this exit. |