if(cplot[0]) v_write(pty, cplot, len); else v_write(pty, cplot+1, len-1);
static void TekEnq (    int status,    register int x,    register int y){    register TScreen *screen = &term->screen;    int pty = screen->respond;    char cplot [7];    int len = 5;    cplot[0] = status;    /* Translate x and y to Tektronix code */    cplot[1] = 040 | ((x >> SHIFTHI) & FIVEBITS);    cplot[2] = 040 | ((x >> SHIFTLO) & FIVEBITS);    cplot[3] = 040 | ((y >> SHIFTHI) & FIVEBITS);    cplot[4] = 040 | ((y >> SHIFTLO) & FIVEBITS);    if (screen->gin_terminator != GIN_TERM_NONE)	cplot[len++] = '\r';    if (screen->gin_terminator == GIN_TERM_EOT)	cplot[len++] = '\004';    if(cplot[0])	v_write(pty, cplot, len);    else	v_write(pty, cplot+1, len-1);}