NAME
        CWAIT -- Append copper wait instruction to user copper list.

   SYNOPSIS
        CWAIT( c , v , h )

        CWait( c , v , h )
               a1  d0  d1
        CBump( c )
              a1

        void CWait( struct ucoplist *, word, word)

   FUNCTION
        Add instruction to wait for vertical beam position v and
        horizontal position h to this intermediate copper list.

   INPUTS
        c - pointer to ucoplist structure
        v - vertical beam position (relative to top of viewport)
        h - horizontal beam position

   RESULTS
        this is actually a macro that calls CWait(c,v,h)
        and then calls CBump(c) to bump the local pointer
        to the next instruction.

   BUGS
        User waiting for horizontal values of greater than 222 decimal
        is illegal.

   SEE ALSO
        CINIT() CMOVE() CEND() graphics/copper.h