Previous topic |
Next topic |
Contents |
Contact z/OS |
Library |
PDF
Convert a relative track number to a 28-bit cylinder address (TRKADDR RELTOABS) z/OS DFSMSdfp Advanced Services SC23-6861-01 |
|
The format of the execute form of the TRKADDR RELTOABS
macro is:
>>-+-------+--TRKADDR--RELTOABS--+-,cchh--+--,REG=(reg_pair)--->< '-label-' '-,(reg)-' Converts relative track number to absolute format (CCCCcccH). RELTOABS converts a relative track number to a 28-bit cylinder address form in the passed cchh field. The register must be the first in an even/odd pair. The odd register must contain the relative track number on the volume. The macro modifies both registers. In 24-bit and 31-bit addressing modes these are four-byte registers. In 64-bit mode, they are eight-byte registers. |
Copyright IBM Corporation 1990, 2014
|