Parameter list, 10 bytes in length.
| Bytes | Description |
|---|---|
| 0-3 | Element request: length requested
Variable request: address of a double-word containing the minimum and maximum lengths requested. Format is: 0 Zero 1-3 Minimum length 4 Zero 5-7 Maximum length List request: address of a list of lengths requested (one word per request, the last word contains X'80' in byte 0.) |
| 4 | Zero |
| 5-7 | Element request: address of a word GETMAIN initialized with the address of the area acquired
Variable request: address of a double-word GETMAIN initialized with the address of the area acquired and the actual length allocated. List request: address of a list area GETMAIN initialized with the addresses of the areas allocated for each requested length in the list. |
| 8 | 8 Flag byte:
10 Request is for storage aligned on a page boundary. 00 Unconditional element request. 20 Conditional element request. 80 Unconditional list request. A0 Conditional list request. C0 Unconditional variable request. E0 Conditional variable request. |
| 9 | Subpool to which memory should be allocated. |