Table 1 gives the contents of the registers when VSAM exits to the JRNAD routine.
Register | Contents |
---|---|
0 | Byte 0—the subpool ID token created by a BLDVRP request. Bytes 2 - 3—the relative buffer number, that is, the buffer array index within a buffer pool. |
1 | Address of a parameter list built by VSAM. |
2-3 | Unpredictable. |
4 | Address of buffer control block (BUFC). |
5-13 | Unpredictable. |
14 | Return address to VSAM. |
15 | Entry address to the JRNAD routine. |