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name            vca_iput  -- low level rout - puts char to scrn
                vca_iget  -- low level rout - gets char to scrn

synopsis        VOID vca_iput(row,col,buffer,len)
                COUNT row,col;      row and column
                TEXT buffer[];      text string
                COUNT len;          length

                VOID vca_iget(row,col,buffer,len)
                COUNT row,col;      row and column
                TEXT buffer[];      text string
                COUNT len;          length

description  These are the programs necessary to drive the
           console through interupts.  These are not very
           useful because they are slow but are here as
           an example and in case this is the only way to
           get Vitamin C working.