Input to page services

There are two formats for providing input to page services. These are the register (R) and list (L) formats. If you specify R, page services uses the input information supplied in registers to perform the requested function; if you specify L, page services uses the input information provided in a parameter list to perform the requested function. The information that you must provide in the parameter list includes the starting and the ending addresses for which you want the page service to be performed and an indication of the end of the list.

The list used depends on which page services macro you code. Descriptions of the parameter lists and the macros that use them follow.