X"B0" function 4

Syntax:

call X"B0" using function-code
                 parameter

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

`function-code`	Value 4.
`parameter`	Value 1.

None

This routine disables keyboard interrupts for the rest of the application. It should be called before any subprograms are called.