SPINIT

GDDM V3R2 Base Application Programming Reference

SPINIT

GDDM V3R2 Base Application Programming Reference
SC33-0868-02

Function

To initialize GDDM with SPIB.

Note: SPINIT is an alternative to FSINIT and if used, it must be the first GDDM statement to be executed. It can be invoked only by means of the system programmer interface (SPI).


   SPINIT      (spib-block)

   APL code               115
   GDDM RCP code          X'00050000' (327680)

Parameters

spib-block (specified by user) (32-byte character string)
A table giving control information. The contents of this table are processed by GDDM during initialization. Subsequent changes to the contents do not affect GDDM processing. The storage containing the table can be released after initialization has been completed. For details of the system programmer interface block (SPIB), see "The system programmer interface block" in topic 22.2.2.

Description

Initialize GDDM processing using the System Programmer Interface.

The SPINIT call allows parameters to be passed by a SPIB (SPI Initialization Block). The SPIB contains a number of address words that can be set by an application program.

If the SPINIT call is actually issued in 24-bit mode, GDDM clears the top byte (minus the top bit) of each address word that it processes.

Principal errors

None.

Notices | Terms of use | Support | Contact z/OS