X"A7" function 25

Syntax:

call x"A7" using function-code
                 parameter

Parameters:

  Using call prototype (see Key) Picture
function-code cblt-x1-compx pic x comp-x.
parameter cblt-x1-compx pic x comp-x.

On Entry:

function-code
Value 25

On Exit:

parameter
Bit settings indicating the type of screen as follows:
bit 0 unset = monochrome screen
bit 1 reserved
bit 2 reserved
bit 3 set = EGA-type screen
bit 4 set = VGA-type screen
bit 5 reserved
bit 6 reserved
bit 7 reserved