usr/src/old/lib2648/sync.c

/*      sync.c  4.1     83/03/09        */
/*
 * Make the screen & screen mode look like what it's supposed to.
 *
 * There are two basic things to do here, put the _pen
 * in the right place, and make the line drawing mode be right.
 * We don't sync the cursor here, only when there's user input & it's on.
 */

#include "2648.h"

sync()
{
        if (_supx != _penx || _supy != _peny) {
                escseq(ESCP);
                outchar('a');
                motion(_supx, _supy);
        }
        if (_supsmode != _actsmode) {
                escseq(ESCM);
                switch (_actsmode = _supsmode) {
                case MX:
                        outchar('3');
                        break;
                case MC:
                        outchar('1');
                        break;
                case MS:
                        outchar('2');
                        break;
                }
                outchar('a');
        }
}