/* * Copyright (c) 1988 University of Utah. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah Hdr: ite.c 1.1 90/07/09 * from: @(#)ite.c 7.6 (Berkeley) 5/16/91 * $Id: ite.c,v 1.22 1994/06/23 05:39:14 chopps Exp $ */ /* * ite - bitmaped terminal. * Supports VT200, a few terminal features will be unavailable until * the system actually probes the device (i.e. not after consinit()) */ #include #include #include #include #include #include #include #include #include #include #include #include #include /* DEBUG */ #include #include #include #include #include #include /* * XXX go ask sys/kern/tty.c:ttselect() */ #include "grf.h" struct tty *ite_tty[NGRF]; #define ITEUNIT(dev) (minor(dev)) #define SUBR_INIT(ip) (ip)->grf->g_iteinit(ip) #define SUBR_DEINIT(ip) (ip)->grf->g_itedeinit(ip) #define SUBR_PUTC(ip,c,dy,dx,m) (ip)->grf->g_iteputc(ip,c,dy,dx,m) #define SUBR_CURSOR(ip,flg) (ip)->grf->g_itecursor(ip,flg) #define SUBR_CLEAR(ip,sy,sx,h,w) (ip)->grf->g_iteclear(ip,sy,sx,h,w) #define SUBR_SCROLL(ip,sy,sx,count,dir) \ (ip)->grf->g_itescroll(ip,sy,sx,count,dir) u_int ite_confunits; /* configured units */ int start_repeat_timeo = 20; /* first repeat after x s/100 */ int next_repeat_timeo = 5; /* next repeat after x s/100 */ int ite_default_wrap = 1; /* you want vtxxx-nam, binpatch */ struct ite_softc con_itesoftc; u_char cons_tabs[MAX_TABS]; struct ite_softc *kbd_ite; int kbd_init; static char *index __P((const char *, char)); static int inline atoi __P((const char *)); void iteputchar __P((int c, struct ite_softc *ip)); void ite_putstr __P((const char * s, int len, dev_t dev)); void iteattach __P((struct device *, struct device *, void *)); int itematch __P((struct device *, struct cfdata *, void *)); struct cfdriver itecd = { NULL, "ite", itematch, iteattach, DV_DULL, sizeof(struct ite_softc), NULL, 0 }; int itematch(pdp, cdp, auxp) struct device *pdp; struct cfdata *cdp; void *auxp; { struct grf_softc *gp; int maj; gp = auxp; /* * all that our mask allows (more than enough no one * has > 32 monitors for text consoles on one machine) */ if (cdp->cf_unit >= sizeof(ite_confunits) * NBBY) return(0); /* * XXX * normally this would be done in attach, however * during early init we do not have a device pointer * and thus no unit number. */ for(maj = 0; maj < nchrdev; maj++) if (cdevsw[maj].d_open == iteopen) break; gp->g_itedev = makedev(maj, cdp->cf_unit); return(1); } void iteattach(pdp, dp, auxp) struct device *pdp, *dp; void *auxp; { extern int hz; struct grf_softc *gp; struct ite_softc *ip; int s; gp = (struct grf_softc *)auxp; /* * mark unit as attached (XXX see itematch) */ ite_confunits |= 1 << ITEUNIT(gp->g_itedev); if (dp) { ip = (struct ite_softc *)dp; s = spltty(); if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_unit == gp->g_unit) { /* * console reinit copy params over. * and console always gets keyboard */ bcopy(&con_itesoftc.grf, &ip->grf, (char *)&ip[1] - (char *)&ip->grf); con_itesoftc.grf = NULL; kbd_ite = ip; } ip->grf = gp; splx(s); iteinit(gp->g_itedev); printf(": rows %d cols %d", ip->rows, ip->cols); printf(" repeat at (%d/100)s next at (%d/100)s", start_repeat_timeo, next_repeat_timeo); if (kbd_ite == NULL) kbd_ite = ip; if (kbd_ite == ip) printf(" has keyboard"); printf("\n"); } else { if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_conpri > gp->g_conpri) return; con_itesoftc.grf = gp; con_itesoftc.tabs = cons_tabs; } } struct ite_softc * getitesp(dev) dev_t dev; { if (amiga_realconfig && con_itesoftc.grf == NULL) return(itecd.cd_devs[ITEUNIT(dev)]); if (con_itesoftc.grf == NULL) panic("no ite_softc for console"); return(&con_itesoftc); } /* * cons.c entry points into ite device. */ /* * Return a priority in consdev->cn_pri field highest wins. This function * is called before any devices have been probed. */ void ite_cnprobe(cd) struct consdev *cd; { /* * bring graphics layer up. */ config_console(); /* * return priority of the best ite (already picked from attach) * or CN_DEAD. */ if (con_itesoftc.grf == NULL) cd->cn_pri = CN_DEAD; else { cd->cn_pri = con_itesoftc.grf->g_conpri; cd->cn_dev = con_itesoftc.grf->g_itedev; } } void ite_cninit(cd) struct consdev *cd; { struct ite_softc *ip; ip = getitesp(cd->cn_dev); iteinit(cd->cn_dev); ip->flags |= ITE_ACTIVE | ITE_ISCONS; } /* * ite_cnfinish() is called in ite_init() when the device is * being probed in the normal fasion, thus we can finish setting * up this ite now that the system is more functional. */ void ite_cnfinish(ip) struct ite_softc *ip; { static int done; if (done) return; done = 1; } int ite_cngetc(dev) dev_t dev; { int c; /* XXX this should be moved */ if (!kbd_init) { kbd_init = 1; kbdenable(); } do { c = kbdgetcn(); c = ite_cnfilter(c, ITEFILT_CONSOLE); } while (c == -1); return (c); } void ite_cnputc(dev, c) dev_t dev; int c; { static int paniced; struct ite_softc *ip; char ch; ip = getitesp(dev); ch = c; if (panicstr && !paniced && (ip->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) { (void)ite_on(dev, 3); paniced = 1; } iteputchar(ch, ip); } /* * standard entry points to the device. */ /* * iteinit() is the standard entry point for initialization of * an ite device, it is also called from ite_cninit(). * */ void iteinit(dev) dev_t dev; { struct ite_softc *ip; ip = getitesp(dev); if (ip->flags & ITE_INITED) return; bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap)); ip->cursorx = 0; ip->cursory = 0; SUBR_INIT(ip); SUBR_CURSOR(ip, DRAW_CURSOR); if (ip->tabs == NULL) ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK); ite_reset(ip); ip->flags |= ITE_INITED; } int iteopen(dev, mode, devtype, p) dev_t dev; int mode, devtype; struct proc *p; { struct ite_softc *ip; struct tty *tp; int error, first, unit; unit = ITEUNIT(dev); first = 0; if (((1 << unit) & ite_confunits) == 0) return (ENXIO); ip = getitesp(dev); if (ip->tp == NULL) tp = ite_tty[unit] = ip->tp = ttymalloc(); else tp = ip->tp; if ((tp->t_state & (TS_ISOPEN | TS_XCLUDE)) == (TS_ISOPEN | TS_XCLUDE) && p->p_ucred->cr_uid != 0) return (EBUSY); if ((ip->flags & ITE_ACTIVE) == 0) { error = ite_on(dev, 0); if (error) return (error); first = 1; } tp->t_oproc = itestart; tp->t_param = ite_param; tp->t_dev = dev; if ((tp->t_state & TS_ISOPEN) == 0) { ttychars(tp); tp->t_iflag = TTYDEF_IFLAG; tp->t_oflag = TTYDEF_OFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_lflag = TTYDEF_LFLAG; tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; tp->t_state = TS_WOPEN | TS_CARR_ON; ttsetwater(tp); } error = (*linesw[tp->t_line].l_open) (dev, tp); if (error == 0) { tp->t_winsize.ws_row = ip->rows; tp->t_winsize.ws_col = ip->cols; if (!kbd_init) { kbd_init = 1; kbdenable(); } } else if (first) ite_off(dev, 0); return (error); } int iteclose(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); (*linesw[tp->t_line].l_close) (tp, flag); ttyclose(tp); ite_off(dev, 0); return (0); } int iteread(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); return ((*linesw[tp->t_line].l_read) (tp, uio, flag)); } int itewrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); return ((*linesw[tp->t_line].l_write) (tp, uio, flag)); } int iteioctl(dev, cmd, addr, flag, p) dev_t dev; int cmd, flag; caddr_t addr; struct proc *p; { struct iterepeat *irp; struct ite_softc *ip; struct tty *tp; int error; ip = getitesp(dev); tp = ip->tp; KDASSERT(tp); error = (*linesw[tp->t_line].l_ioctl) (tp, cmd, addr, flag, p); if (error >= 0) return (error); error = ttioctl(tp, cmd, addr, flag, p); if (error >= 0) return (error); switch (cmd) { case ITEIOCSKMAP: if (addr == 0) return(EFAULT); bcopy(addr, &kbdmap, sizeof(struct kbdmap)); return(0); case ITEIOCGKMAP: if (addr == NULL) return(EFAULT); bcopy(&kbdmap, addr, sizeof(struct kbdmap)); return(0); case ITEIOCGREPT: irp = (struct iterepeat *)addr; irp->start = start_repeat_timeo; irp->next = next_repeat_timeo; case ITEIOCSREPT: irp = (struct iterepeat *)addr; if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT) return(EINVAL); start_repeat_timeo = irp->start; next_repeat_timeo = irp->next; return(0); } /* XXX */ if (minor(dev) == 0) { error = ite_grf_ioctl(ip, cmd, addr, flag, p); if (error >= 0) return (error); } return (ENOTTY); } void itestart(tp) struct tty *tp; { struct clist *rbp; struct ite_softc *ip; u_char buf[ITEBURST]; int s, len, n; ip = getitesp(tp->t_dev); KDASSERT(tp); s = spltty(); { if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) goto out; tp->t_state |= TS_BUSY; rbp = &tp->t_outq; len = q_to_b(rbp, buf, ITEBURST); } splx(s); /* Here is a really good place to implement pre/jumpscroll() */ ite_putstr(buf, len, tp->t_dev); s = spltty(); { tp->t_state &= ~TS_BUSY; /* we have characters remaining. */ if (rbp->c_cc) { tp->t_state |= TS_TIMEOUT; timeout(ttrstrt, tp, 1); } /* wakeup we are below */ if (rbp->c_cc <= tp->t_lowat) { if (tp->t_state & TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; wakeup((caddr_t) rbp); } selwakeup(&tp->t_wsel); } out: } splx(s); } int ite_on(dev, flag) dev_t dev; int flag; { struct ite_softc *ip; int unit; unit = ITEUNIT(dev); if (((1 << unit) & ite_confunits) == 0) return (ENXIO); ip = getitesp(dev); /* force ite active, overriding graphics mode */ if (flag & 1) { ip->flags |= ITE_ACTIVE; ip->flags &= ~(ITE_INGRF | ITE_INITED); } /* leave graphics mode */ if (flag & 2) { ip->flags &= ~ITE_INGRF; if ((ip->flags & ITE_ACTIVE) == 0) return (0); } ip->flags |= ITE_ACTIVE; if (ip->flags & ITE_INGRF) return (0); iteinit(dev); return (0); } int ite_off(dev, flag) dev_t dev; int flag; { struct ite_softc *ip; ip = getitesp(dev); if (flag & 2) ip->flags |= ITE_INGRF; if ((ip->flags & ITE_ACTIVE) == 0) return; if ((flag & 1) || (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED) SUBR_DEINIT(ip); if ((flag & 2) == 0) /* XXX hmm grfon() I think wants this to go inactive. */ ip->flags &= ~ITE_ACTIVE; } /* XXX called after changes made in underlying grf layer. */ /* I want to nuke this */ void ite_reinit(dev) dev_t dev; { struct ite_softc *ip; ip = getitesp(dev); ip->flags &= ~ITE_INITED; iteinit(dev); } int ite_param(tp, t) struct tty *tp; struct termios *t; { tp->t_ispeed = t->c_ispeed; tp->t_ospeed = t->c_ospeed; tp->t_cflag = t->c_cflag; return (0); } void ite_reset(ip) struct ite_softc *ip; { int i; ip->curx = 0; ip->cury = 0; ip->attribute = ATTR_NOR; ip->save_curx = 0; ip->save_cury = 0; ip->save_attribute = ATTR_NOR; ip->ap = ip->argbuf; ip->emul_level = 0; ip->eightbit_C1 = 0; ip->top_margin = 0; ip->bottom_margin = ip->rows - 1; ip->inside_margins = 0; ip->linefeed_newline = 0; ip->auto_wrap = ite_default_wrap; ip->cursor_appmode = 0; ip->keypad_appmode = 0; ip->imode = 0; ip->key_repeat = 1; bzero(ip->tabs, ip->cols); for (i = 0; i < ip->cols; i++) ip->tabs[i] = ((i & 7) == 0); } /* * has to be global becuase of the shared filters. */ static u_char key_mod; static u_char last_dead; /* Used in console at startup only */ int ite_cnfilter(c, caller) u_char c; enum caller caller; { struct key key; u_char code, up, mask; int s, i; up = c & 0x80 ? 1 : 0; c &= 0x7f; code = 0; s = spltty(); i = (int)c - KBD_LEFT_SHIFT; if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) { mask = 1 << i; if (up) key_mod &= ~mask; else key_mod |= mask; splx(s); return -1; } if (up) { splx(s); return -1; } /* translate modifiers */ if (key_mod & KBD_MOD_SHIFT) { if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_shift_keys[c]; else key = kbdmap.shift_keys[c]; } else if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_keys[c]; else { key = kbdmap.keys[c]; /* if CAPS and key is CAPable (no pun intended) */ if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS)) key = kbdmap.shift_keys[c]; } code = key.code; /* if string return */ if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) { splx(s); return -1; } /* handle dead keys */ if (key.mode & KBD_MODE_DEAD) { /* if entered twice, send accent itself */ if (last_dead == key.mode & KBD_MODE_ACCMASK) last_dead = 0; else { last_dead = key.mode & KBD_MODE_ACCMASK; splx(s); return -1; } } if (last_dead) { /* can't apply dead flag to string-keys */ if (code >= '@' && code < 0x7f) code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@']; last_dead = 0; } if (key_mod & KBD_MOD_CTRL) code &= 0x1f; if (key_mod & KBD_MOD_META) code |= 0x80; /* do console mapping. */ code = code == '\r' ? '\n' : code; splx(s); return (code); } /* And now the old stuff. */ /* these are used to implement repeating keys.. */ static u_char last_char; static u_char tout_pending; /*ARGSUSED*/ static void repeat_handler(arg) void *arg; { tout_pending = 0; if (last_char) add_sicallback(ite_filter, last_char, ITEFILT_REPEATER); } void ite_filter(c, caller) u_char c; enum caller caller; { struct tty *kbd_tty; u_char code, *str, up, mask; struct key key; int s, i; if (kbd_ite == NULL) return; kbd_tty = kbd_ite->tp; /* have to make sure we're at spltty in here */ s = spltty(); /* * keyboard interrupts come at priority 2, while softint * generated keyboard-repeat interrupts come at level 1. So, * to not allow a key-up event to get thru before a repeat for * the key-down, we remove any outstanding callout requests.. */ rem_sicallback(ite_filter); up = c & 0x80 ? 1 : 0; c &= 0x7f; code = 0; i = (int)c - KBD_LEFT_SHIFT; if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) { mask = 1 << i; if (up) key_mod &= ~mask; else key_mod |= mask; splx(s); return; } /* stop repeating on up event */ if (up) { if (tout_pending) { untimeout(repeat_handler, 0); tout_pending = 0; last_char = 0; } splx(s); return; } else if (tout_pending && last_char != c) { /* different character, stop also */ untimeout(repeat_handler, 0); tout_pending = 0; last_char = 0; } /* Safety button, switch back to ascii keymap. */ if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) { bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap)); splx(s); return; #ifdef DDB } else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) { extern int Debugger(); Debugger(); splx(s); return; #endif } /* translate modifiers */ if (key_mod & KBD_MOD_SHIFT) { if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_shift_keys[c]; else key = kbdmap.shift_keys[c]; } else if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_keys[c]; else { key = kbdmap.keys[c]; /* if CAPS and key is CAPable (no pun intended) */ if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS)) key = kbdmap.shift_keys[c]; } code = key.code; /* * arrange to repeat the keystroke. By doing this at the level * of scan-codes, we can have function keys, and keys that * send strings, repeat too. This also entitles an additional * overhead, since we have to do the conversion each time, but * I guess that's ok. */ if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) { tout_pending = 1; last_char = c; timeout(repeat_handler, 0, start_repeat_timeo * hz / 100); } else if (!tout_pending && caller == ITEFILT_REPEATER && kbd_ite->key_repeat) { tout_pending = 1; last_char = c; timeout(repeat_handler, 0, next_repeat_timeo * hz / 100); } /* handle dead keys */ if (key.mode & KBD_MODE_DEAD) { /* if entered twice, send accent itself */ if (last_dead == key.mode & KBD_MODE_ACCMASK) last_dead = 0; else { last_dead = key.mode & KBD_MODE_ACCMASK; splx(s); return; } } if (last_dead) { /* can't apply dead flag to string-keys */ if (!(key.mode & KBD_MODE_STRING) && code >= '@' && code < 0x7f) code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@']; last_dead = 0; } /* if not string, apply META and CTRL modifiers */ if (!(key.mode & KBD_MODE_STRING) && (!(key.mode & KBD_MODE_KPAD) || (kbd_ite && !kbd_ite->keypad_appmode))) { if (key_mod & KBD_MOD_CTRL) code &= 0x1f; if (key_mod & KBD_MOD_META) code |= 0x80; } else if ((key.mode & KBD_MODE_KPAD) && (kbd_ite && kbd_ite->keypad_appmode)) { static char *in = "0123456789-+.\r()/*"; static char *out = "pqrstuvwxymlnMPQRS"; char *cp = index (in, code); /* * keypad-appmode sends SS3 followed by the above * translated character */ (*linesw[kbd_tty->t_line].l_rint) (27, kbd_tty); (*linesw[kbd_tty->t_line].l_rint) ('O', kbd_tty); (*linesw[kbd_tty->t_line].l_rint) (out[cp - in], kbd_tty); splx(s); return; } else { /* *NO* I don't like this.... */ static u_char app_cursor[] = { 3, 27, 'O', 'A', 3, 27, 'O', 'B', 3, 27, 'O', 'C', 3, 27, 'O', 'D'}; str = kbdmap.strings + code; /* * if this is a cursor key, AND it has the default * keymap setting, AND we're in app-cursor mode, switch * to the above table. This is *nasty* ! */ if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode && !bcmp(str, "\x03\x1b[", 3) && index("ABCD", str[3])) str = app_cursor + 4 * (str[3] - 'A'); /* * using a length-byte instead of 0-termination allows * to embed \0 into strings, although this is not used * in the default keymap */ for (i = *str++; i; i--) (*linesw[kbd_tty->t_line].l_rint) (*str++, kbd_tty); splx(s); return; } (*linesw[kbd_tty->t_line].l_rint) (code, kbd_tty); splx(s); return; } /* helper functions, makes the code below more readable */ static void inline ite_sendstr(str) char *str; { struct tty *kbd_tty; kbd_tty = kbd_ite->tp; KDASSERT(kbd_tty); while (*str) (*linesw[kbd_tty->t_line].l_rint) (*str++, kbd_tty); } static void alignment_display(ip) struct ite_softc *ip; { int i, j; for (j = 0; j < ip->rows; j++) for (i = 0; i < ip->cols; i++) SUBR_PUTC(ip, 'E', j, i, ATTR_NOR); attrclr(ip, 0, 0, ip->rows, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline snap_cury(ip) struct ite_softc *ip; { if (ip->inside_margins) { if (ip->cury < ip->top_margin) ip->cury = ip->top_margin; if (ip->cury > ip->bottom_margin) ip->cury = ip->bottom_margin; } } static void inline ite_dnchar(ip, n) struct ite_softc *ip; int n; { n = min(n, ip->cols - ip->curx); if (n < ip->cols - ip->curx) { SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT); attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx, 1, ip->cols - ip->curx - n); attrclr(ip, ip->cury, ip->cols - n, 1, n); } while (n-- > 0) SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_inchar(ip, n) struct ite_softc *ip; int n; { n = min(n, ip->cols - ip->curx); if (n < ip->cols - ip->curx) { SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT); attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n, 1, ip->cols - ip->curx - n); attrclr(ip, ip->cury, ip->curx, 1, n); } while (n--) SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_clrtoeol(ip) struct ite_softc *ip; { int y = ip->cury, x = ip->curx; if (ip->cols - x > 0) { SUBR_CLEAR(ip, y, x, 1, ip->cols - x); attrclr(ip, y, x, 1, ip->cols - x); SUBR_CURSOR(ip, DRAW_CURSOR); } } static void inline ite_clrtobol(ip) struct ite_softc *ip; { int y = ip->cury, x = min(ip->curx + 1, ip->cols); SUBR_CLEAR(ip, y, 0, 1, x); attrclr(ip, y, 0, 1, x); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_clrline(ip) struct ite_softc *ip; { int y = ip->cury; SUBR_CLEAR(ip, y, 0, 1, ip->cols); attrclr(ip, y, 0, 1, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_clrtoeos(ip) struct ite_softc *ip; { ite_clrtoeol(ip); if (ip->cury < ip->rows - 1) { SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols); attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } } static void inline ite_clrtobos(ip) struct ite_softc *ip; { ite_clrtobol(ip); if (ip->cury > 0) { SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols); attrclr(ip, 0, 0, ip->cury, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } } static void inline ite_clrscreen(ip) struct ite_softc *ip; { SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols); attrclr(ip, 0, 0, ip->rows, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_dnline(ip, n) struct ite_softc *ip; int n; { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin) return; n = min(n, ip->bottom_margin + 1 - ip->cury); if (n <= ip->bottom_margin - ip->cury) { SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP); attrmov(ip, ip->cury + n, 0, ip->cury, 0, ip->bottom_margin + 1 - ip->cury - n, ip->cols); } SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols); attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_inline(ip, n) struct ite_softc *ip; int n; { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin) return; n = min(n, ip->bottom_margin + 1 - ip->cury); if (n <= ip->bottom_margin - ip->cury) { SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN); attrmov(ip, ip->cury, 0, ip->cury + n, 0, ip->bottom_margin + 1 - ip->cury - n, ip->cols); } SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols); attrclr(ip, ip->cury, 0, n, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } static void inline ite_lf (ip) struct ite_softc *ip; { ++ip->cury; if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) { ip->cury--; SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrline(ip); } SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); } static void inline ite_crlf (ip) struct ite_softc *ip; { ip->curx = 0; ite_lf (ip); } static void inline ite_cr (ip) struct ite_softc *ip; { if (ip->curx) { ip->curx = 0; SUBR_CURSOR(ip, MOVE_CURSOR); } } static void inline ite_rlf (ip) struct ite_softc *ip; { ip->cury--; if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) { ip->cury++; SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN); ite_clrline(ip); } SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); } static int inline atoi (cp) const char *cp; { int n; for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++) n = n * 10 + *cp - '0'; return n; } static char * index (cp, ch) const char *cp; char ch; { while (*cp && *cp != ch) cp++; return *cp ? (char *) cp : 0; } static int inline ite_argnum (ip) struct ite_softc *ip; { char ch; int n; /* convert argument string into number */ if (ip->ap == ip->argbuf) return 1; ch = *ip->ap; *ip->ap = 0; n = atoi (ip->argbuf); *ip->ap = ch; return n; } static int inline ite_zargnum (ip) struct ite_softc *ip; { char ch, *cp; int n; /* convert argument string into number */ if (ip->ap == ip->argbuf) return 0; ch = *ip->ap; *ip->ap = 0; n = atoi (ip->argbuf); *ip->ap = ch; return n; /* don't "n ? n : 1" here, 0m != 1m ! */ } static int inline strncmp (a, b, l) const char *a, *b; int l; { for (;l--; a++, b++) if (*a != *b) return *a - *b; return 0; } void ite_putstr(s, len, dev) const char *s; int len; dev_t dev; { struct ite_softc *ip; int i; ip = getitesp(dev); /* XXX avoid problems */ if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) return; SUBR_CURSOR(ip, START_CURSOROPT); for (i = 0; i < len; i++) if (s[i]) iteputchar(s[i], ip); SUBR_CURSOR(ip, END_CURSOROPT); } void iteputchar(c, ip) register int c; struct ite_softc *ip; { struct tty *kbd_tty; int n, x, y; char *cp; if (kbd_ite == NULL) kbd_tty = NULL; else kbd_tty = kbd_ite->tp; if (ip->escape) { doesc: switch (ip->escape) { case ESC: switch (c) { /* first 7bit equivalents for the 8bit control characters */ case 'D': c = IND; ip->escape = 0; break; /* and fall into the next switch below (same for all `break') */ case 'E': c = NEL; ip->escape = 0; break; case 'H': c = HTS; ip->escape = 0; break; case 'M': c = RI; ip->escape = 0; break; case 'N': c = SS2; ip->escape = 0; break; case 'O': c = SS3; ip->escape = 0; break; case 'P': c = DCS; ip->escape = 0; break; case '[': c = CSI; ip->escape = 0; break; case '\\': c = ST; ip->escape = 0; break; case ']': c = OSC; ip->escape = 0; break; case '^': c = PM; ip->escape = 0; break; case '_': c = APC; ip->escape = 0; break; /* introduces 7/8bit control */ case ' ': /* can be followed by either F or G */ ip->escape = ' '; break; /* a lot of character set selections, not yet used... 94-character sets: */ case '(': /* G0 */ case ')': /* G1 */ ip->escape = c; return; case '*': /* G2 */ case '+': /* G3 */ case 'B': /* ASCII */ case 'A': /* ISO latin 1 */ case '<': /* user preferred suplemental */ case '0': /* dec special graphics */ /* 96-character sets: */ case '-': /* G1 */ case '.': /* G2 */ case '/': /* G3 */ /* national character sets: */ case '4': /* dutch */ case '5': case 'C': /* finnish */ case 'R': /* french */ case 'Q': /* french canadian */ case 'K': /* german */ case 'Y': /* italian */ case '6': /* norwegian/danish */ /* note: %5 and %6 are not supported (two chars..) */ ip->escape = 0; /* just ignore for now */ return; /* locking shift modes (as you might guess, not yet supported..) */ case '`': ip->GR = ip->G1; ip->escape = 0; return; case 'n': ip->GL = ip->G2; ip->escape = 0; return; case '}': ip->GR = ip->G2; ip->escape = 0; return; case 'o': ip->GL = ip->G3; ip->escape = 0; return; case '|': ip->GR = ip->G3; ip->escape = 0; return; /* font width/height control */ case '#': ip->escape = '#'; return; /* hard terminal reset .. */ case 'c': ite_reset (ip); SUBR_CURSOR(ip, MOVE_CURSOR); ip->escape = 0; return; case '7': ip->save_curx = ip->curx; ip->save_cury = ip->cury; ip->save_attribute = ip->attribute; ip->escape = 0; return; case '8': ip->curx = ip->save_curx; ip->cury = ip->save_cury; ip->attribute = ip->save_attribute; SUBR_CURSOR(ip, MOVE_CURSOR); ip->escape = 0; return; case '=': ip->keypad_appmode = 1; ip->escape = 0; return; case '>': ip->keypad_appmode = 0; ip->escape = 0; return; case 'Z': /* request ID */ if (ip->emul_level == EMUL_VT100) ite_sendstr ("\033[?61;0c"); /* XXX not clean */ else ite_sendstr ("\033[?63;0c"); /* XXX not clean */ ip->escape = 0; return; /* default catch all for not recognized ESC sequences */ default: ip->escape = 0; return; } break; case '(': case ')': ip->escape = 0; return; case ' ': switch (c) { case 'F': ip->eightbit_C1 = 0; ip->escape = 0; return; case 'G': ip->eightbit_C1 = 1; ip->escape = 0; return; default: /* not supported */ ip->escape = 0; return; } break; case '#': switch (c) { case '5': /* single height, single width */ ip->escape = 0; return; case '6': /* double width, single height */ ip->escape = 0; return; case '3': /* top half */ ip->escape = 0; return; case '4': /* bottom half */ ip->escape = 0; return; case '8': /* screen alignment pattern... */ alignment_display (ip); ip->escape = 0; return; default: ip->escape = 0; return; } break; case CSI: /* the biggie... */ switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case ';': case '\"': case '$': case '>': if (ip->ap < ip->argbuf + MAX_ARGSIZE) *ip->ap++ = c; return; case BS: /* you wouldn't believe such perversion is possible? it is.. BS is allowed in between cursor sequences (at least), according to vttest.. */ if (--ip->curx < 0) ip->curx = 0; else SUBR_CURSOR(ip, MOVE_CURSOR); break; case 'p': *ip->ap = 0; if (! strncmp (ip->argbuf, "61\"", 3)) ip->emul_level = EMUL_VT100; else if (! strncmp (ip->argbuf, "63;1\"", 5) || ! strncmp (ip->argbuf, "62;1\"", 5)) ip->emul_level = EMUL_VT300_7; else ip->emul_level = EMUL_VT300_8; ip->escape = 0; return; case '?': *ip->ap = 0; ip->escape = '?'; ip->ap = ip->argbuf; return; case 'c': *ip->ap = 0; if (ip->argbuf[0] == '>') { ite_sendstr ("\033[>24;0;0;0c"); } else switch (ite_zargnum(ip)) { case 0: /* primary DA request, send primary DA response */ if (ip->emul_level == EMUL_VT100) ite_sendstr ("\033[?1;1c"); else ite_sendstr ("\033[?63;1c"); break; } ip->escape = 0; return; case 'n': switch (ite_zargnum(ip)) { case 5: ite_sendstr ("\033[0n"); /* no malfunction */ break; case 6: /* cursor position report */ sprintf (ip->argbuf, "\033[%d;%dR", ip->cury + 1, ip->curx + 1); ite_sendstr (ip->argbuf); break; } ip->escape = 0; return; case 'x': switch (ite_zargnum(ip)) { case 0: /* Fake some terminal parameters. */ ite_sendstr ("\033[2;1;1;112;112;1;0x"); break; case 1: ite_sendstr ("\033[3;1;1;112;112;1;0x"); break; } ip->escape = 0; return; case 'g': switch (ite_zargnum(ip)) { case 0: if (ip->curx < ip->cols) ip->tabs[ip->curx] = 0; break; case 3: for (n = 0; n < ip->cols; n++) ip->tabs[n] = 0; break; } ip->escape = 0; return; case 'h': case 'l': n = ite_zargnum (ip); switch (n) { case 4: ip->imode = (c == 'h'); /* insert/replace mode */ break; case 20: ip->linefeed_newline = (c == 'h'); break; } ip->escape = 0; return; case 'M': ite_dnline (ip, ite_argnum (ip)); ip->escape = 0; return; case 'L': ite_inline (ip, ite_argnum (ip)); ip->escape = 0; return; case 'P': ite_dnchar (ip, ite_argnum (ip)); ip->escape = 0; return; case '@': ite_inchar (ip, ite_argnum (ip)); ip->escape = 0; return; case 'G': /* this one was *not* in my vt320 manual but in a vt320 termcap entry.. who is right? It's supposed to set the horizontal cursor position. */ *ip->ap = 0; x = atoi (ip->argbuf); if (x) x--; ip->curx = min(x, ip->cols - 1); ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'd': /* same thing here, this one's for setting the absolute vertical cursor position. Not documented... */ *ip->ap = 0; y = atoi (ip->argbuf); if (y) y--; if (ip->inside_margins) y += ip->top_margin; ip->cury = min(y, ip->rows - 1); ip->escape = 0; snap_cury(ip); SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'H': case 'f': *ip->ap = 0; y = atoi (ip->argbuf); x = 0; cp = index (ip->argbuf, ';'); if (cp) x = atoi (cp + 1); if (x) x--; if (y) y--; if (ip->inside_margins) y += ip->top_margin; ip->cury = min(y, ip->rows - 1); ip->curx = min(x, ip->cols - 1); ip->escape = 0; snap_cury(ip); SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'A': n = ite_argnum (ip); n = ip->cury - (n ? n : 1); if (n < 0) n = 0; if (ip->inside_margins) n = max(ip->top_margin, n); else if (n == ip->top_margin - 1) /* allow scrolling outside region, but don't scroll out of active region without explicit CUP */ n = ip->top_margin; ip->cury = n; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'B': n = ite_argnum (ip); n = ip->cury + (n ? n : 1); n = min(ip->rows - 1, n); if (ip->inside_margins) n = min(ip->bottom_margin, n); else if (n == ip->bottom_margin + 1) /* allow scrolling outside region, but don't scroll out of active region without explicit CUP */ n = ip->bottom_margin; ip->cury = n; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'C': n = ite_argnum (ip); n = n ? n : 1; ip->curx = min(ip->curx + n, ip->cols - 1); ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'D': n = ite_argnum (ip); n = n ? n : 1; n = ip->curx - n; ip->curx = n >= 0 ? n : 0; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr (ip, ATTR_INV); return; case 'J': *ip->ap = 0; n = ite_zargnum (ip); if (n == 0) ite_clrtoeos(ip); else if (n == 1) ite_clrtobos(ip); else if (n == 2) ite_clrscreen(ip); ip->escape = 0; return; case 'K': n = ite_zargnum (ip); if (n == 0) ite_clrtoeol(ip); else if (n == 1) ite_clrtobol(ip); else if (n == 2) ite_clrline(ip); ip->escape = 0; return; case 'X': n = ite_argnum(ip) - 1; n = min(n, ip->cols - 1 - ip->curx); for (; n >= 0; n--) { attrclr(ip, ip->cury, ip->curx + n, 1, 1); SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR); } ip->escape = 0; return; case '}': case '`': /* status line control */ ip->escape = 0; return; case 'r': *ip->ap = 0; x = atoi (ip->argbuf); x = x ? x : 1; y = ip->rows; cp = index (ip->argbuf, ';'); if (cp) { y = atoi (cp + 1); y = y ? y : ip->rows; } if (y - x < 2) { /* if illegal scrolling region, reset to defaults */ x = 1; y = ip->rows; } x--; y--; ip->top_margin = min(x, ip->rows - 1); ip->bottom_margin = min(y, ip->rows - 1); if (ip->inside_margins) { ip->cury = ip->top_margin; ip->curx = 0; SUBR_CURSOR(ip, MOVE_CURSOR); } ip->escape = 0; return; case 'm': /* big attribute setter/resetter */ { char *cp; *ip->ap = 0; /* kludge to make CSIm work (== CSI0m) */ if (ip->ap == ip->argbuf) ip->ap++; for (cp = ip->argbuf; cp < ip->ap; ) { switch (*cp) { case 0: case '0': clr_attr (ip, ATTR_ALL); cp++; break; case '1': set_attr (ip, ATTR_BOLD); cp++; break; case '2': switch (cp[1]) { case '2': clr_attr (ip, ATTR_BOLD); cp += 2; break; case '4': clr_attr (ip, ATTR_UL); cp += 2; break; case '5': clr_attr (ip, ATTR_BLINK); cp += 2; break; case '7': clr_attr (ip, ATTR_INV); cp += 2; break; default: cp++; break; } break; case '4': set_attr (ip, ATTR_UL); cp++; break; case '5': set_attr (ip, ATTR_BLINK); cp++; break; case '7': set_attr (ip, ATTR_INV); cp++; break; default: cp++; break; } } } ip->escape = 0; return; case 'u': /* DECRQTSR */ ite_sendstr ("\033P\033\\"); ip->escape = 0; return; default: ip->escape = 0; return; } break; case '?': /* CSI ? */ switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case ';': case '\"': case '$': /* Don't fill the last character; it's needed. */ /* XXX yeah, where ?? */ if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1) *ip->ap++ = c; return; case 'n': *ip->ap = 0; if (ip->ap == &ip->argbuf[2]) { if (! strncmp (ip->argbuf, "15", 2)) /* printer status: no printer */ ite_sendstr ("\033[13n"); else if (! strncmp (ip->argbuf, "25", 2)) /* udk status */ ite_sendstr ("\033[20n"); else if (! strncmp (ip->argbuf, "26", 2)) /* keyboard dialect: US */ ite_sendstr ("\033[27;1n"); } ip->escape = 0; return; case 'h': case 'l': n = ite_zargnum (ip); switch (n) { case 1: ip->cursor_appmode = (c == 'h'); break; case 3: /* 132/80 columns (132 == 'h') */ break; case 4: /* smooth scroll */ break; case 5: /* light background (=='h') /dark background(=='l') */ break; case 6: /* origin mode */ ip->inside_margins = (c == 'h'); ip->curx = 0; ip->cury = ip->inside_margins ? ip->top_margin : 0; SUBR_CURSOR(ip, MOVE_CURSOR); break; case 7: /* auto wraparound */ ip->auto_wrap = (c == 'h'); break; case 8: /* keyboard repeat */ ip->key_repeat = (c == 'h'); break; case 20: /* newline mode */ ip->linefeed_newline = (c == 'h'); break; case 25: /* cursor on/off */ SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR); break; } ip->escape = 0; return; default: ip->escape = 0; return; } break; default: ip->escape = 0; return; } } switch (c) { case VT: /* VT is treated like LF */ case FF: /* so is FF */ case LF: /* cr->crlf distinction is done here, on output, not on input! */ if (ip->linefeed_newline) ite_crlf (ip); else ite_lf (ip); break; case CR: ite_cr (ip); break; case BS: if (--ip->curx < 0) ip->curx = 0; else SUBR_CURSOR(ip, MOVE_CURSOR); break; case HT: for (n = ip->curx + 1; n < ip->cols; n++) { if (ip->tabs[n]) { ip->curx = n; SUBR_CURSOR(ip, MOVE_CURSOR); break; } } break; case BEL: if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty) kbdbell(); break; case SO: ip->GL = ip->G1; break; case SI: ip->GL = ip->G0; break; case ENQ: /* send answer-back message !! */ break; case CAN: ip->escape = 0; /* cancel any escape sequence in progress */ break; case SUB: ip->escape = 0; /* dito, but see below */ /* should also display a reverse question mark!! */ break; case ESC: ip->escape = ESC; break; /* now it gets weird.. 8bit control sequences.. */ case IND: /* index: move cursor down, scroll */ ite_lf (ip); break; case NEL: /* next line. next line, first pos. */ ite_crlf (ip); break; case HTS: /* set horizontal tab */ if (ip->curx < ip->cols) ip->tabs[ip->curx] = 1; break; case RI: /* reverse index */ ite_rlf (ip); break; case SS2: /* go into G2 for one character */ /* not yet supported */ break; case SS3: /* go into G3 for one character */ break; case DCS: /* device control string introducer */ ip->escape = DCS; ip->ap = ip->argbuf; break; case CSI: /* control sequence introducer */ ip->escape = CSI; ip->ap = ip->argbuf; break; case ST: /* string terminator */ /* ignore, if not used as terminator */ break; case OSC: /* introduces OS command. Ignore everything upto ST */ ip->escape = OSC; break; case PM: /* privacy message, ignore everything upto ST */ ip->escape = PM; break; case APC: /* application program command, ignore everything upto ST */ ip->escape = APC; break; default: if (c < ' ' || c == DEL) break; if (ip->imode) ite_inchar(ip, 1); iteprecheckwrap(ip); #ifdef DO_WEIRD_ATTRIBUTES if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) { attrset(ip, ATTR_INV); SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV); } else SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR); #else SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute); #endif SUBR_CURSOR(ip, DRAW_CURSOR); itecheckwrap(ip); break; } } iteprecheckwrap(ip) struct ite_softc *ip; { if (ip->auto_wrap && ip->curx == ip->cols) { ip->curx = 0; clr_attr(ip, ATTR_INV); if (++ip->cury >= ip->bottom_margin + 1) { ip->cury = ip->bottom_margin; SUBR_CURSOR(ip, MOVE_CURSOR); SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrtoeol(ip); } else SUBR_CURSOR(ip, MOVE_CURSOR); } } itecheckwrap(ip) struct ite_softc *ip; { #if 0 if (++ip->curx == ip->cols) { if (ip->auto_wrap) { ip->curx = 0; clr_attr(ip, ATTR_INV); if (++ip->cury >= ip->bottom_margin + 1) { ip->cury = ip->bottom_margin; SUBR_CURSOR(ip, MOVE_CURSOR); SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrtoeol(ip); return; } } else /* stay there if no autowrap.. */ ip->curx--; } #else if (ip->curx < ip->cols) { ip->curx++; SUBR_CURSOR(ip, MOVE_CURSOR); } #endif }