SVC 35, WTO and WTOR

This SVC displays a message on the screen (WTO and WTOR)).

INPUT
Register 1

Address of the WTO or WTOR buffer.

OUTPUT
Register 15

Return code.

The WTO buffer must be in the following format:

Bytes Description
0 Binary zero.
1 Length of display message plus 4
2-3 Multiple console routing flags (not used)
4-nn The text to be displayed on the screen.

The WTOR buffer must be in the following format:

Bytes Description
0 x'80'.
1-3 Address of reply buffer.
5-7 Address of reply event control block (not used)
8 Binary zero
9 Length of reply in bytes
10 Length of display message plus 4
11-12 Multiple console routing flags (not used)
13-nn The text to be displayed on the screen.