Inline assembly

Hello!

        Does anyone know how to call an assembly subroutine from within
        inline assembly code?  I have tried to use CALL, but that doesn't
        work.  Anyone who can help me resolve this problem will receive a
        copy of a windowing text editor for MS-DOS that I wrote myself.
        Please mail responses to me at:

        Xjko...@titan.ecs.fullerton.edu

        Thanks!