Function txt_cl_eos

sys/msdos/vidtxt.c:224–260

}

void txt_cl_eos(void) /* clear to end of screen */
{
    union REGS regs;
#ifndef PC9800
    int col, row;
#endif

#ifdef PC9800
    regs.h.dl = attr98[attrib_text_normal];
    regs.h.ah = SETATT;
    regs.h.cl = DIRECT_CON_IO;

    (void) int86(DOS_EXT_FUNC, &regs, &regs);

    regs.h.dl = 0x00; /* clear to end of screen */
    regs.h.ah = SCREEN_CLEAR;
    regs.h.cl = DIRECT_CON_IO;

    (void) int86(DOS_EXT_FUNC, &regs, &regs);
#else
    txt_get_cursor(&col, &row);
    txt_cl_end(col, row); /* clear to end of line */
    if (row < LI - 1) {
        txt_gotoxy(0, (row < (LI - 1) ? row + 1 : (LI - 1)));
        regs.h.dl = (char) (CO - 1); /* X  of lower right */
        regs.h.dh = (char) (LI - 1); /* Y  of lower right */
        regs.h.cl = 0;               /* X  of upper left */
                                     /* Y (row)  of upper left */
        regs.h.ch = (char) (row < (LI - 1) ? row + 1 : (LI - 1));
        regs.x.ax = 0;
        regs.x.bx = 0;
        regs.h.bh = (char) attrib_text_normal;
        regs.h.ah = SCROLL;
        (void) int86(VIDEO_BIOS, &regs, &regs); /* Scroll or initialize window */
    }
#endif
}

void
txt_startup(int *wid, int *hgt)