The parameter area passed by the caller to the RMF Data Set Decompression
Interface Service is a 3-fullword string, preceded by a halfword containing
the length of the parameter area. The parameter area is as follows:
- First word
- Bytes 0 to 3: address of the compressed set-of-samples
- Second word
- Bytes 4 to 7: address of output area for decompressed set-of-samples
- Third word
- Bytes 8 to 11: length of output area