3 files changed, 1398 insertions, 0 deletions

diff --git a/sys/dev/syscons/scterm-dumb.c b/sys/dev/syscons/scterm-dumb.c
new file mode 100644
index 0000000000000..1c130b6af4d65
--- /dev/null
+++ b/sys/dev/syscons/scterm-dumb.c
@@ -0,0 +1,155 @@
+/*-
+ * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
+ * All rights reserved.
+ *
+ * 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 as
+ *    the first lines of this file unmodified.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_syscons.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/consio.h>
+
+#if defined(__sparc64__) || defined(__powerpc__)
+#include <machine/sc_machdep.h>
+#else
+#include <machine/pc/display.h>
+#endif
+
+#include <dev/syscons/syscons.h>
+#include <dev/syscons/sctermvar.h>
+
+#ifdef SC_DUMB_TERMINAL
+
+/* dumb terminal emulator */
+
+static sc_term_init_t	dumb_init;
+static sc_term_term_t	dumb_term;
+static sc_term_puts_t	dumb_puts;
+static sc_term_ioctl_t	dumb_ioctl;
+static sc_term_clear_t	dumb_clear;
+static sc_term_input_t	dumb_input;
+static void		dumb_nop(void);
+
+static sc_term_sw_t sc_term_dumb = {
+	{ NULL, NULL },
+	"dumb",				/* emulator name */
+	"dumb terminal",		/* description */
+	"*",				/* matching renderer */
+	0,				/* softc size */
+	0,
+	dumb_init,
+	dumb_term,
+	dumb_puts,
+	dumb_ioctl,
+	(sc_term_reset_t *)dumb_nop,
+	(sc_term_default_attr_t *)dumb_nop,
+	dumb_clear,
+	(sc_term_notify_t *)dumb_nop,
+	dumb_input,
+};
+
+SCTERM_MODULE(dumb, sc_term_dumb);
+
+static int
+dumb_init(scr_stat *scp, void **softc, int code)
+{
+	switch (code) {
+	case SC_TE_COLD_INIT:
+		++sc_term_dumb.te_refcount;
+		break;
+	case SC_TE_WARM_INIT:
+		break;
+	}
+	return 0;
+}
+
+static int
+dumb_term(scr_stat *scp, void **softc)
+{
+	--sc_term_dumb.te_refcount;
+	return 0;
+}
+
+static void
+dumb_puts(scr_stat *scp, u_char *buf, int len)
+{
+	while (len > 0) {
+		++scp->sc->write_in_progress;
+		sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8);
+    		sc_term_gen_scroll(scp, scp->sc->scr_map[0x20],
+				   SC_NORM_ATTR << 8);
+		--scp->sc->write_in_progress;
+	}
+}
+
+static int
+dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
+	   int flag, struct proc *p)
+{
+	vid_info_t *vi;
+
+	switch (cmd) {
+	case GIO_ATTR:      	/* get current attributes */
+		*(int*)data = SC_NORM_ATTR;
+		return 0;
+	case CONS_GETINFO:  	/* get current (virtual) console info */
+		vi = (vid_info_t *)data;
+		if (vi->size != sizeof(struct vid_info))
+			return EINVAL;
+		vi->mv_norm.fore = SC_NORM_ATTR & 0x0f;
+		vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f;
+		vi->mv_rev.fore = SC_NORM_ATTR & 0x0f;
+		vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f;
+		/*
+		 * The other fields are filled by the upper routine. XXX
+		 */
+		return ENOIOCTL;
+	}
+	return ENOIOCTL;
+}
+
+static void
+dumb_clear(scr_stat *scp)
+{
+	sc_move_cursor(scp, 0, 0);
+	sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8);
+	mark_all(scp);
+}
+
+static int
+dumb_input(scr_stat *scp, int c, struct tty *tp)
+{
+	return FALSE;
+}
+
+static void
+dumb_nop(void)
+{
+	/* nothing */
+}
+
+#endif /* SC_DUMB_TERMINAL */
diff --git a/sys/dev/syscons/scterm-sc.c b/sys/dev/syscons/scterm-sc.c
new file mode 100644
index 0000000000000..b52bea8c7e40b
--- /dev/null
+++ b/sys/dev/syscons/scterm-sc.c
@@ -0,0 +1,811 @@
+/*-
+ * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
+ * Copyright (c) 1992-1998 Søren Schmidt
+ * All rights reserved.
+ *
+ * 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 as
+ *    the first lines of this file unmodified.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_syscons.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/consio.h>
+
+#if defined(__sparc64__) || defined(__powerpc__)
+#include <machine/sc_machdep.h>
+#else
+#include <machine/pc/display.h>
+#endif
+
+#include <dev/syscons/syscons.h>
+#include <dev/syscons/sctermvar.h>
+
+#ifndef SC_DUMB_TERMINAL
+
+#define MAX_ESC_PAR	5
+
+/* attribute flags */
+typedef struct {
+	u_short		fg;			/* foreground color */
+	u_short		bg;			/* background color */
+} color_t;
+
+typedef struct {
+	int		flags;
+#define SCTERM_BUSY	(1 << 0)
+	int		esc;
+	int		num_param;
+	int		last_param;
+	int		param[MAX_ESC_PAR];
+	int		saved_xpos;
+	int		saved_ypos;
+	int		attr_mask;		/* current logical attr mask */
+#define NORMAL_ATTR	0x00
+#define BLINK_ATTR	0x01
+#define BOLD_ATTR	0x02
+#define UNDERLINE_ATTR	0x04
+#define REVERSE_ATTR	0x08
+#define FG_CHANGED	0x10
+#define BG_CHANGED	0x20
+	int		cur_attr;		/* current hardware attr word */
+	color_t		cur_color;		/* current hardware color */
+	color_t		std_color;		/* normal hardware color */
+	color_t		rev_color;		/* reverse hardware color */
+	color_t		dflt_std_color;		/* default normal color */
+	color_t		dflt_rev_color;		/* default reverse color */
+} term_stat;
+
+static sc_term_init_t	scterm_init;
+static sc_term_term_t	scterm_term;
+static sc_term_puts_t	scterm_puts;
+static sc_term_ioctl_t	scterm_ioctl;
+static sc_term_reset_t	scterm_reset;
+static sc_term_default_attr_t	scterm_default_attr;
+static sc_term_clear_t	scterm_clear;
+static sc_term_notify_t	scterm_notify;
+static sc_term_input_t	scterm_input;
+
+static sc_term_sw_t sc_term_sc = {
+	{ NULL, NULL },
+	"sc",					/* emulator name */
+	"syscons terminal",			/* description */
+	"*",					/* matching renderer, any :-) */
+	sizeof(term_stat),			/* softc size */
+	0,
+	scterm_init,
+	scterm_term,
+	scterm_puts,
+	scterm_ioctl,
+	scterm_reset,
+	scterm_default_attr,
+	scterm_clear,
+	scterm_notify,
+	scterm_input,
+};
+
+SCTERM_MODULE(sc, sc_term_sc);
+
+static term_stat	reserved_term_stat;
+static void		scterm_scan_esc(scr_stat *scp, term_stat *tcp,
+					u_char c);
+static int		mask2attr(term_stat *tcp);
+
+static int
+scterm_init(scr_stat *scp, void **softc, int code)
+{
+	term_stat *tcp;
+
+	if (*softc == NULL) {
+		if (reserved_term_stat.flags & SCTERM_BUSY)
+			return EINVAL;
+		*softc = &reserved_term_stat;
+	}
+	tcp = *softc;
+
+	switch (code) {
+	case SC_TE_COLD_INIT:
+		bzero(tcp, sizeof(*tcp));
+		tcp->flags = SCTERM_BUSY;
+		tcp->esc = 0;
+		tcp->saved_xpos = -1;
+		tcp->saved_ypos = -1;
+		tcp->attr_mask = NORMAL_ATTR;
+		/* XXX */
+		tcp->dflt_std_color.fg = SC_NORM_ATTR & 0x0f;
+		tcp->dflt_std_color.bg = (SC_NORM_ATTR >> 4) & 0x0f;
+		tcp->dflt_rev_color.fg = SC_NORM_REV_ATTR & 0x0f;
+		tcp->dflt_rev_color.bg = (SC_NORM_REV_ATTR >> 4) & 0x0f;
+		tcp->std_color = tcp->dflt_std_color;
+		tcp->rev_color = tcp->dflt_rev_color;
+		tcp->cur_color = tcp->std_color;
+		tcp->cur_attr = mask2attr(tcp);
+		++sc_term_sc.te_refcount;
+		break;
+
+	case SC_TE_WARM_INIT:
+		tcp->esc = 0;
+		tcp->saved_xpos = -1;
+		tcp->saved_ypos = -1;
+#if 0
+		tcp->std_color = tcp->dflt_std_color;
+		tcp->rev_color = tcp->dflt_rev_color;
+#endif
+		tcp->cur_color = tcp->std_color;
+		tcp->cur_attr = mask2attr(tcp);
+		break;
+	}
+
+	return 0;
+}
+
+static int
+scterm_term(scr_stat *scp, void **softc)
+{
+	if (*softc == &reserved_term_stat) {
+		*softc = NULL;
+		bzero(&reserved_term_stat, sizeof(reserved_term_stat));
+	}
+	--sc_term_sc.te_refcount;
+	return 0;
+}
+
+static void
+scterm_scan_esc(scr_stat *scp, term_stat *tcp, u_char c)
+{
+	static u_char ansi_col[16] = {
+		FG_BLACK,     FG_RED,          FG_GREEN,      FG_BROWN,
+		FG_BLUE,      FG_MAGENTA,      FG_CYAN,       FG_LIGHTGREY,
+		FG_DARKGREY,  FG_LIGHTRED,     FG_LIGHTGREEN, FG_YELLOW,
+		FG_LIGHTBLUE, FG_LIGHTMAGENTA, FG_LIGHTCYAN,  FG_WHITE
+	};
+	static int cattrs[] = {
+		0,					/* block */
+		CONS_BLINK_CURSOR,			/* blinking block */
+		CONS_CHAR_CURSOR,			/* underline */
+		CONS_CHAR_CURSOR | CONS_BLINK_CURSOR,	/* blinking underline */
+		CONS_RESET_CURSOR,			/* reset to default */
+		CONS_HIDDEN_CURSOR,			/* hide cursor */
+	};
+	static int tcattrs[] = {
+		CONS_RESET_CURSOR | CONS_LOCAL_CURSOR,	/* normal */
+		CONS_HIDDEN_CURSOR | CONS_LOCAL_CURSOR,	/* invisible */
+		CONS_BLINK_CURSOR | CONS_LOCAL_CURSOR,	/* very visible */
+	};
+	sc_softc_t *sc;
+	int v0, v1, v2;
+	int i, n;
+
+	i = n = 0;
+	sc = scp->sc; 
+	if (tcp->esc == 1) {	/* seen ESC */
+		switch (c) {
+
+		case '7':	/* Save cursor position */
+			tcp->saved_xpos = scp->xpos;
+			tcp->saved_ypos = scp->ypos;
+			break;
+
+		case '8':	/* Restore saved cursor position */
+			if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
+				sc_move_cursor(scp, tcp->saved_xpos,
+					       tcp->saved_ypos);
+			break;
+
+		case '[':	/* Start ESC [ sequence */
+			tcp->esc = 2;
+			tcp->last_param = -1;
+			for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
+				tcp->param[i] = 1;
+			tcp->num_param = 0;
+			return;
+
+		case 'M':	/* Move cursor up 1 line, scroll if at top */
+			sc_term_up_scroll(scp, 1, sc->scr_map[0x20],
+					  tcp->cur_attr, 0, 0);
+			break;
+#ifdef notyet
+		case 'Q':
+			tcp->esc = 4;
+			return;
+#endif
+		case 'c':       /* reset */
+			tcp->attr_mask = NORMAL_ATTR;
+			tcp->cur_color = tcp->std_color
+				       = tcp->dflt_std_color;
+			tcp->rev_color = tcp->dflt_rev_color;
+			tcp->cur_attr = mask2attr(tcp);
+			sc_change_cursor_shape(scp,
+			    CONS_RESET_CURSOR | CONS_LOCAL_CURSOR, -1, -1);
+			sc_clear_screen(scp);
+			break;
+
+		case '(':	/* iso-2022: designate 94 character set to G0 */
+			tcp->esc = 5;
+			return;
+		}
+	} else if (tcp->esc == 2) {	/* seen ESC [ */
+		if (c >= '0' && c <= '9') {
+			if (tcp->num_param < MAX_ESC_PAR) {
+				if (tcp->last_param != tcp->num_param) {
+					tcp->last_param = tcp->num_param;
+					tcp->param[tcp->num_param] = 0;
+				} else {
+					tcp->param[tcp->num_param] *= 10;
+				}
+				tcp->param[tcp->num_param] += c - '0';
+				return;
+			}
+		}
+		tcp->num_param = tcp->last_param + 1;
+		switch (c) {
+
+		case ';':
+			if (tcp->num_param < MAX_ESC_PAR)
+				return;
+			break;
+
+		case '=':
+			tcp->esc = 3;
+			tcp->last_param = -1;
+			for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
+				tcp->param[i] = 1;
+			tcp->num_param = 0;
+			return;
+
+		case 'A':	/* up n rows */
+			sc_term_up(scp, tcp->param[0], 0);
+			break;
+
+		case 'B':	/* down n rows */
+			sc_term_down(scp, tcp->param[0], 0);
+			break;
+
+		case 'C':	/* right n columns */
+			sc_term_right(scp, tcp->param[0]);
+			break;
+
+		case 'D':	/* left n columns */
+			sc_term_left(scp, tcp->param[0]);
+			break;
+
+		case 'E':	/* cursor to start of line n lines down */
+			n = tcp->param[0];
+			if (n < 1)
+				n = 1;
+			sc_move_cursor(scp, 0, scp->ypos + n);
+			break;
+
+		case 'F':	/* cursor to start of line n lines up */
+			n = tcp->param[0];
+			if (n < 1)
+				n = 1;
+			sc_move_cursor(scp, 0, scp->ypos - n);
+			break;
+
+		case 'f':	/* Cursor move */
+		case 'H':
+			if (tcp->num_param == 0)
+				sc_move_cursor(scp, 0, 0);
+			else if (tcp->num_param == 2)
+				sc_move_cursor(scp, tcp->param[1] - 1,
+					       tcp->param[0] - 1);
+			break;
+
+		case 'J':	/* Clear all or part of display */
+			if (tcp->num_param == 0)
+				n = 0;
+			else
+				n = tcp->param[0];
+			sc_term_clr_eos(scp, n, sc->scr_map[0x20],
+					tcp->cur_attr);
+			break;
+
+		case 'K':	/* Clear all or part of line */
+			if (tcp->num_param == 0)
+				n = 0;
+			else
+				n = tcp->param[0];
+			sc_term_clr_eol(scp, n, sc->scr_map[0x20],
+					tcp->cur_attr);
+			break;
+
+		case 'L':	/* Insert n lines */
+			sc_term_ins_line(scp, scp->ypos, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr, 0);
+			break;
+
+		case 'M':	/* Delete n lines */
+			sc_term_del_line(scp, scp->ypos, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr, 0);
+			break;
+
+		case 'P':	/* Delete n chars */
+			sc_term_del_char(scp, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr);
+			break;
+
+		case '@':	/* Insert n chars */
+			sc_term_ins_char(scp, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr);
+			break;
+
+		case 'S':	/* scroll up n lines */
+			sc_term_del_line(scp, 0, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr, 0);
+			break;
+
+		case 'T':	/* scroll down n lines */
+			sc_term_ins_line(scp, 0, tcp->param[0],
+					 sc->scr_map[0x20], tcp->cur_attr, 0);
+			break;
+
+		case 'X':	/* erase n characters in line */
+			n = tcp->param[0];
+			if (n < 1)
+				n = 1;
+			if (n > scp->xsize - scp->xpos)
+				n = scp->xsize - scp->xpos;
+			sc_vtb_erase(&scp->vtb, scp->cursor_pos, n,
+				     sc->scr_map[0x20], tcp->cur_attr);
+			mark_for_update(scp, scp->cursor_pos);
+			mark_for_update(scp, scp->cursor_pos + n - 1);
+			break;
+
+		case 'Z':	/* move n tabs backwards */
+			sc_term_backtab(scp, tcp->param[0]);
+			break;
+
+		case '`':	/* move cursor to column n */
+			sc_term_col(scp, tcp->param[0]);
+			break;
+
+		case 'a':	/* move cursor n columns to the right */
+			sc_term_right(scp, tcp->param[0]);
+			break;
+
+		case 'd':	/* move cursor to row n */
+			sc_term_row(scp, tcp->param[0]);
+			break;
+
+		case 'e':	/* move cursor n rows down */
+			sc_term_down(scp, tcp->param[0], 0);
+			break;
+
+		case 'm':	/* change attribute */
+			if (tcp->num_param == 0) {
+				tcp->attr_mask = NORMAL_ATTR;
+				tcp->cur_color = tcp->std_color;
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			}
+			for (i = 0; i < tcp->num_param; i++) {
+				switch (n = tcp->param[i]) {
+				case 0:	/* back to normal */
+					tcp->attr_mask = NORMAL_ATTR;
+					tcp->cur_color = tcp->std_color;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 1:	/* bold */
+					tcp->attr_mask |= BOLD_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 4:	/* underline */
+					tcp->attr_mask |= UNDERLINE_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 5:	/* blink */
+					tcp->attr_mask |= BLINK_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 7: /* reverse */
+					tcp->attr_mask |= REVERSE_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 22: /* remove bold (or dim) */
+					tcp->attr_mask &= ~BOLD_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 24: /* remove underline */
+					tcp->attr_mask &= ~UNDERLINE_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 25: /* remove blink */
+					tcp->attr_mask &= ~BLINK_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 27: /* remove reverse */
+					tcp->attr_mask &= ~REVERSE_ATTR;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 30: case 31: /* set ansi fg color */
+				case 32: case 33: case 34:
+				case 35: case 36: case 37:
+					tcp->attr_mask |= FG_CHANGED;
+					tcp->cur_color.fg = ansi_col[n - 30];
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 39: /* restore fg color back to normal */
+					tcp->attr_mask &= ~(FG_CHANGED|BOLD_ATTR);
+					tcp->cur_color.fg = tcp->std_color.fg;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				case 40: case 41: /* set ansi bg color */
+				case 42: case 43: case 44:
+				case 45: case 46: case 47:
+					tcp->attr_mask |= BG_CHANGED;
+					tcp->cur_color.bg = ansi_col[n - 40];
+					tcp->cur_attr = mask2attr(tcp);
+		    			break;
+				case 49: /* restore bg color back to normal */
+					tcp->attr_mask &= ~BG_CHANGED;
+					tcp->cur_color.bg = tcp->std_color.bg;
+					tcp->cur_attr = mask2attr(tcp);
+					break;
+				}
+			}
+			break;
+
+		case 's':	/* Save cursor position */
+			tcp->saved_xpos = scp->xpos;
+			tcp->saved_ypos = scp->ypos;
+			break;
+
+		case 'u':	/* Restore saved cursor position */
+			if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
+				sc_move_cursor(scp, tcp->saved_xpos,
+					       tcp->saved_ypos);
+			break;
+
+		case 'x':
+			if (tcp->num_param == 0)
+				n = 0;
+			else
+				n = tcp->param[0];
+			switch (n) {
+			case 0: /* reset colors and attributes back to normal */
+				tcp->attr_mask = NORMAL_ATTR;
+				tcp->cur_color = tcp->std_color
+					       = tcp->dflt_std_color;
+				tcp->rev_color = tcp->dflt_rev_color;
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 1:	/* set ansi background */
+				tcp->attr_mask &= ~BG_CHANGED;
+				tcp->cur_color.bg = tcp->std_color.bg
+						  = ansi_col[tcp->param[1] & 0x0f];
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 2:	/* set ansi foreground */
+				tcp->attr_mask &= ~FG_CHANGED;
+				tcp->cur_color.fg = tcp->std_color.fg
+						  = ansi_col[tcp->param[1] & 0x0f];
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 3: /* set adapter attribute directly */
+				tcp->attr_mask &= ~(FG_CHANGED | BG_CHANGED);
+				tcp->cur_color.fg = tcp->std_color.fg
+						  = tcp->param[1] & 0x0f;
+				tcp->cur_color.bg = tcp->std_color.bg
+						  = (tcp->param[1] >> 4) & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 5: /* set ansi reverse background */
+				tcp->rev_color.bg = ansi_col[tcp->param[1] & 0x0f];
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 6: /* set ansi reverse foreground */
+				tcp->rev_color.fg = ansi_col[tcp->param[1] & 0x0f];
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			case 7: /* set adapter reverse attribute directly */
+				tcp->rev_color.fg = tcp->param[1] & 0x0f;
+				tcp->rev_color.bg = (tcp->param[1] >> 4) & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+				break;
+			}
+			break;
+
+		case 'z':	/* switch to (virtual) console n */
+			if (tcp->num_param == 1)
+				sc_switch_scr(sc, tcp->param[0]);
+			break;
+		}
+	} else if (tcp->esc == 3) {	/* seen ESC [0-9]+ = */
+		if (c >= '0' && c <= '9') {
+			if (tcp->num_param < MAX_ESC_PAR) {
+				if (tcp->last_param != tcp->num_param) {
+					tcp->last_param = tcp->num_param;
+					tcp->param[tcp->num_param] = 0;
+				} else {
+					tcp->param[tcp->num_param] *= 10;
+				}
+				tcp->param[tcp->num_param] += c - '0';
+				return;
+			}
+		}
+		tcp->num_param = tcp->last_param + 1;
+		switch (c) {
+
+		case ';':
+			if (tcp->num_param < MAX_ESC_PAR)
+				return;
+			break;
+
+		case 'A':   /* set display border color */
+			if (tcp->num_param == 1) {
+				scp->border=tcp->param[0] & 0xff;
+				if (scp == sc->cur_scp)
+					sc_set_border(scp, scp->border);
+			}
+			break;
+
+		case 'B':   /* set bell pitch and duration */
+			if (tcp->num_param == 2) {
+				scp->bell_pitch = tcp->param[0];
+				scp->bell_duration = 
+				    (tcp->param[1] * hz + 99) / 100;
+			}
+			break;
+
+		case 'C':   /* set global/parmanent cursor type & shape */
+			i = spltty();
+			n = tcp->num_param;
+			v0 = tcp->param[0];
+			v1 = tcp->param[1];
+			v2 = tcp->param[2];
+			switch (n) {
+			case 1:	/* flags only */
+				if (v0 < sizeof(cattrs)/sizeof(cattrs[0]))
+					v0 = cattrs[v0];
+				else	/* backward compatibility */
+					v0 = cattrs[v0 & 0x3];
+				sc_change_cursor_shape(scp, v0, -1, -1);
+				break;
+			case 2:
+				v2 = 0;
+				v0 &= 0x1f;	/* backward compatibility */
+				v1 &= 0x1f;
+				/* FALL THROUGH */
+			case 3:	/* base and height */
+				if (v2 == 0)	/* count from top */
+					sc_change_cursor_shape(scp, -1,
+					    scp->font_size - v1 - 1,
+					    v1 - v0 + 1);
+				else if (v2 == 1) /* count from bottom */
+					sc_change_cursor_shape(scp, -1,
+					    v0, v1 - v0 + 1);
+				break;
+			}
+			splx(i);
+			break;
+
+		case 'F':   /* set adapter foreground */
+			if (tcp->num_param == 1) {
+				tcp->attr_mask &= ~FG_CHANGED;
+				tcp->cur_color.fg = tcp->std_color.fg
+						  = tcp->param[0] & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+			}
+			break;
+
+		case 'G':   /* set adapter background */
+			if (tcp->num_param == 1) {
+				tcp->attr_mask &= ~BG_CHANGED;
+				tcp->cur_color.bg = tcp->std_color.bg
+						  = tcp->param[0] & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+			}
+			break;
+
+		case 'H':   /* set adapter reverse foreground */
+			if (tcp->num_param == 1) {
+				tcp->rev_color.fg = tcp->param[0] & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+			}
+			break;
+
+		case 'I':   /* set adapter reverse background */
+			if (tcp->num_param == 1) {
+				tcp->rev_color.bg = tcp->param[0] & 0x0f;
+				tcp->cur_attr = mask2attr(tcp);
+			}
+			break;
+
+		case 'S':   /* set local/temporary cursor type & shape */
+			i = spltty();
+			n = tcp->num_param;
+			v0 = tcp->param[0];
+			switch (n) {
+			case 0:
+				v0 = 0;
+				/* FALL THROUGH */
+			case 1:
+				if (v0 < sizeof(tcattrs)/sizeof(tcattrs[0]))
+					sc_change_cursor_shape(scp,
+					    tcattrs[v0], -1, -1);
+				break;
+			}
+			splx(i);
+			break;
+		}
+#ifdef notyet
+	} else if (tcp->esc == 4) {	/* seen ESC Q */
+		/* to be filled */
+#endif
+	} else if (tcp->esc == 5) {	/* seen ESC ( */
+		switch (c) {
+		case 'B':   /* iso-2022: desginate ASCII into G0 */
+			break;
+		/* other items to be filled */
+		default:
+			break;
+		}
+	}
+	tcp->esc = 0;
+}
+
+static void
+scterm_puts(scr_stat *scp, u_char *buf, int len)
+{
+	term_stat *tcp;
+
+	tcp = scp->ts;
+outloop:
+	scp->sc->write_in_progress++;
+
+	if (tcp->esc) {
+		scterm_scan_esc(scp, tcp, *buf);
+		buf++;
+		len--;
+	} else {
+		switch (*buf) {
+		case 0x1b:
+			tcp->esc = 1;
+			tcp->num_param = 0;
+			buf++;
+			len--;
+			break;
+		default:
+			sc_term_gen_print(scp, &buf, &len, tcp->cur_attr);
+			break;
+		}
+	}
+
+	sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], tcp->cur_attr);
+
+	scp->sc->write_in_progress--;
+	if (len)
+		goto outloop;
+}
+
+static int
+scterm_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
+	     struct thread *td)
+{
+	term_stat *tcp = scp->ts;
+	vid_info_t *vi;
+
+	switch (cmd) {
+	case GIO_ATTR:      	/* get current attributes */
+		/* FIXME: */
+		*(int*)data = (tcp->cur_attr >> 8) & 0xff;
+		return 0;
+	case CONS_GETINFO:  	/* get current (virtual) console info */
+		vi = (vid_info_t *)data;
+		if (vi->size != sizeof(struct vid_info))
+			return EINVAL;
+		vi->mv_norm.fore = tcp->std_color.fg;
+		vi->mv_norm.back = tcp->std_color.bg;
+		vi->mv_rev.fore = tcp->rev_color.fg;
+		vi->mv_rev.back = tcp->rev_color.bg;
+		/*
+		 * The other fields are filled by the upper routine. XXX
+		 */
+		return ENOIOCTL;
+	}
+	return ENOIOCTL;
+}
+
+static int
+scterm_reset(scr_stat *scp, int code)
+{
+	/* FIXME */
+	return 0;
+}
+
+static void
+scterm_default_attr(scr_stat *scp, int color, int rev_color)
+{
+	term_stat *tcp = scp->ts;
+
+	tcp->dflt_std_color.fg = color & 0x0f;
+	tcp->dflt_std_color.bg = (color >> 4) & 0x0f;
+	tcp->dflt_rev_color.fg = rev_color & 0x0f;
+	tcp->dflt_rev_color.bg = (rev_color >> 4) & 0x0f;
+	tcp->std_color = tcp->dflt_std_color;
+	tcp->rev_color = tcp->dflt_rev_color;
+	tcp->cur_color = tcp->std_color;
+	tcp->cur_attr = mask2attr(tcp);
+}
+
+static void
+scterm_clear(scr_stat *scp)
+{
+	term_stat *tcp = scp->ts;
+
+	sc_move_cursor(scp, 0, 0);
+	sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], tcp->cur_attr);
+	mark_all(scp);
+}
+
+static void
+scterm_notify(scr_stat *scp, int event)
+{
+	switch (event) {
+	case SC_TE_NOTIFY_VTSWITCH_IN:
+		break;
+	case SC_TE_NOTIFY_VTSWITCH_OUT:
+		break;
+	}
+}
+
+static int
+scterm_input(scr_stat *scp, int c, struct tty *tp)
+{
+	return FALSE;
+}
+
+/*
+ * Calculate hardware attributes word using logical attributes mask and
+ * hardware colors
+ */
+
+/* FIXME */
+static int
+mask2attr(term_stat *tcp)
+{
+	int attr, mask = tcp->attr_mask;
+
+	if (mask & REVERSE_ATTR) {
+		attr = ((mask & FG_CHANGED) ?
+			tcp->cur_color.bg : tcp->rev_color.fg) |
+			(((mask & BG_CHANGED) ?
+			tcp->cur_color.fg : tcp->rev_color.bg) << 4);
+	} else
+		attr = tcp->cur_color.fg | (tcp->cur_color.bg << 4);
+
+	/* XXX: underline mapping for Hercules adapter can be better */
+	if (mask & (BOLD_ATTR | UNDERLINE_ATTR))
+		attr ^= 0x08;
+	if (mask & BLINK_ATTR)
+		attr ^= 0x80;
+
+	return (attr << 8);
+}
+
+#endif /* SC_DUMB_TERMINAL */
diff --git a/sys/dev/syscons/sctermvar.h b/sys/dev/syscons/sctermvar.h
new file mode 100644
index 0000000000000..b1c01af1f800f
--- /dev/null
+++ b/sys/dev/syscons/sctermvar.h
@@ -0,0 +1,432 @@
+/*-
+ * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
+ * All rights reserved.
+ *
+ * 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 as
+ *    the first lines of this file unmodified.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _DEV_SYSCONS_SCTERMVAR_H_
+#define _DEV_SYSCONS_SCTERMVAR_H_
+
+/*
+ * building blocks for terminal emulator modules.
+ */
+
+static __inline void	sc_term_ins_line(scr_stat *scp, int y, int n, int ch,
+					 int attr, int tail);
+static __inline void	sc_term_del_line(scr_stat *scp, int y, int n, int ch,
+					 int attr, int tail);
+static __inline void	sc_term_ins_char(scr_stat *scp, int n, int ch,
+					 int attr);
+static __inline void	sc_term_del_char(scr_stat *scp, int n, int ch,
+					 int attr);
+static __inline void	sc_term_col(scr_stat *scp, int n);
+static __inline void	sc_term_row(scr_stat *scp, int n);
+static __inline void	sc_term_up(scr_stat *scp, int n, int head);
+static __inline void	sc_term_down(scr_stat *scp, int n, int tail);
+static __inline void	sc_term_left(scr_stat *scp, int n);
+static __inline void	sc_term_right(scr_stat *scp, int n);
+static __inline void	sc_term_up_scroll(scr_stat *scp, int n, int ch,
+					  int attr, int head, int tail);
+static __inline void	sc_term_down_scroll(scr_stat *scp, int n, int ch,
+					    int attr, int head, int tail);
+static __inline void	sc_term_clr_eos(scr_stat *scp, int n, int ch, int attr);
+static __inline void	sc_term_clr_eol(scr_stat *scp, int n, int ch, int attr);
+static __inline void	sc_term_tab(scr_stat *scp, int n);
+static __inline void	sc_term_backtab(scr_stat *scp, int n);
+static __inline void	sc_term_respond(scr_stat *scp, u_char *s);
+static __inline void	sc_term_gen_print(scr_stat *scp, u_char **buf, int *len,
+					  int attr);
+static __inline void	sc_term_gen_scroll(scr_stat *scp, int ch, int attr);
+
+static __inline void
+sc_term_ins_line(scr_stat *scp, int y, int n, int ch, int attr, int tail)
+{
+	if (tail <= 0)
+		tail = scp->ysize;
+	if (n < 1)
+		n = 1;
+	if (n > tail - y)
+		n = tail - y;
+	sc_vtb_ins(&scp->vtb, y*scp->xsize, n*scp->xsize, ch, attr);
+	mark_for_update(scp, y*scp->xsize);
+	mark_for_update(scp, scp->xsize*tail - 1);
+}
+
+static __inline void
+sc_term_del_line(scr_stat *scp, int y, int n, int ch, int attr, int tail)
+{
+	if (tail <= 0)
+		tail = scp->ysize;
+	if (n < 1)
+		n = 1;
+	if (n > tail - y)
+		n = tail - y;
+	sc_vtb_delete(&scp->vtb, y*scp->xsize, n*scp->xsize, ch, attr);
+	mark_for_update(scp, y*scp->xsize);
+	mark_for_update(scp, scp->xsize*tail - 1);
+}
+
+static __inline void
+sc_term_ins_char(scr_stat *scp, int n, int ch, int attr)
+{
+	int count;
+
+	if (n < 1)
+		n = 1;
+	if (n > scp->xsize - scp->xpos)
+		n = scp->xsize - scp->xpos;
+	count = scp->xsize - (scp->xpos + n);
+	sc_vtb_move(&scp->vtb, scp->cursor_pos, scp->cursor_pos + n, count);
+	sc_vtb_erase(&scp->vtb, scp->cursor_pos, n, ch, attr);
+	mark_for_update(scp, scp->cursor_pos);
+	mark_for_update(scp, scp->cursor_pos + n + count - 1);
+}
+
+static __inline void
+sc_term_del_char(scr_stat *scp, int n, int ch, int attr)
+{
+	int count;
+
+	if (n < 1)
+		n = 1;
+	if (n > scp->xsize - scp->xpos)
+		n = scp->xsize - scp->xpos;
+	count = scp->xsize - (scp->xpos + n);
+	sc_vtb_move(&scp->vtb, scp->cursor_pos + n, scp->cursor_pos, count);
+	sc_vtb_erase(&scp->vtb, scp->cursor_pos + count, n, ch, attr);
+	mark_for_update(scp, scp->cursor_pos);
+	mark_for_update(scp, scp->cursor_pos + n + count - 1);
+}
+
+static __inline void
+sc_term_col(scr_stat *scp, int n)
+{
+	if (n < 1)
+		n = 1;
+	sc_move_cursor(scp, n - 1, scp->ypos);
+}
+
+static __inline void
+sc_term_row(scr_stat *scp, int n)
+{
+	if (n < 1)
+		n = 1;
+	sc_move_cursor(scp, scp->xpos, n - 1);
+}
+
+static __inline void
+sc_term_up(scr_stat *scp, int n, int head)
+{
+	if (n < 1)
+		n = 1;
+	n = imin(n, scp->ypos - head);
+	if (n <= 0)
+		return;
+	sc_move_cursor(scp, scp->xpos, scp->ypos - n);
+}
+
+static __inline void
+sc_term_down(scr_stat *scp, int n, int tail)
+{
+	if (tail <= 0)
+		tail = scp->ysize;
+	if (n < 1)
+		n = 1;
+	n = imin(n, tail - scp->ypos - 1);
+	if (n <= 0)
+		return;
+	sc_move_cursor(scp, scp->xpos, scp->ypos + n);
+}
+
+static __inline void
+sc_term_left(scr_stat *scp, int n)
+{
+	if (n < 1)
+		n = 1;
+	sc_move_cursor(scp, scp->xpos - n, scp->ypos);
+}
+
+static __inline void
+sc_term_right(scr_stat *scp, int n)
+{
+	if (n < 1)
+		n = 1;
+	sc_move_cursor(scp, scp->xpos + n, scp->ypos);
+}
+
+static __inline void
+sc_term_up_scroll(scr_stat *scp, int n, int ch, int attr, int head, int tail)
+{
+	if (tail <= 0)
+		tail = scp->ysize;
+	if (n < 1)
+		n = 1;
+	if (n <= scp->ypos - head) {
+		sc_move_cursor(scp, scp->xpos, scp->ypos - n);
+	} else {
+		sc_term_ins_line(scp, head, n - (scp->ypos - head), 
+				 ch, attr, tail);
+		sc_move_cursor(scp, scp->xpos, head);
+	}
+}
+
+static __inline void
+sc_term_down_scroll(scr_stat *scp, int n, int ch, int attr, int head, int tail)
+{
+	if (tail <= 0)
+		tail = scp->ysize;
+	if (n < 1)
+		n = 1;
+	if (n < tail - scp->ypos) {
+		sc_move_cursor(scp, scp->xpos, scp->ypos + n);
+	} else {
+		sc_term_del_line(scp, head, n - (tail - scp->ypos) + 1, 
+				 ch, attr, tail);
+		sc_move_cursor(scp, scp->xpos, tail - 1);
+	}
+}
+
+static __inline void
+sc_term_clr_eos(scr_stat *scp, int n, int ch, int attr)
+{
+	switch (n) {
+	case 0: /* clear form cursor to end of display */
+		sc_vtb_erase(&scp->vtb, scp->cursor_pos,
+			     scp->xsize*scp->ysize - scp->cursor_pos,
+			     ch, attr);
+		mark_for_update(scp, scp->cursor_pos);
+		mark_for_update(scp, scp->xsize*scp->ysize - 1);
+		sc_remove_cutmarking(scp);
+		break;
+	case 1: /* clear from beginning of display to cursor */
+		sc_vtb_erase(&scp->vtb, 0, scp->cursor_pos + 1, ch, attr);
+		mark_for_update(scp, 0);
+		mark_for_update(scp, scp->cursor_pos);
+		sc_remove_cutmarking(scp);
+		break;
+	case 2: /* clear entire display */
+		sc_vtb_erase(&scp->vtb, 0, scp->xsize*scp->ysize, ch, attr);
+		mark_for_update(scp, 0);
+		mark_for_update(scp, scp->xsize*scp->ysize - 1);
+		sc_remove_cutmarking(scp);
+		break;
+	}
+}
+
+static __inline void
+sc_term_clr_eol(scr_stat *scp, int n, int ch, int attr)
+{
+	switch (n) {
+	case 0: /* clear form cursor to end of line */
+		sc_vtb_erase(&scp->vtb, scp->cursor_pos,
+			     scp->xsize - scp->xpos, ch, attr);
+		mark_for_update(scp, scp->cursor_pos);
+		mark_for_update(scp, scp->cursor_pos +
+				scp->xsize - 1 - scp->xpos);
+		break;
+	case 1: /* clear from beginning of line to cursor */
+		sc_vtb_erase(&scp->vtb, scp->cursor_pos - scp->xpos,
+			     scp->xpos + 1, ch, attr);
+		mark_for_update(scp, scp->ypos*scp->xsize);
+		mark_for_update(scp, scp->cursor_pos);
+		break;
+	case 2: /* clear entire line */
+		sc_vtb_erase(&scp->vtb, scp->cursor_pos - scp->xpos,
+			     scp->xsize, ch, attr);
+		mark_for_update(scp, scp->ypos*scp->xsize);
+		mark_for_update(scp, (scp->ypos + 1)*scp->xsize - 1);
+		break;
+	}
+}
+
+static __inline void
+sc_term_tab(scr_stat *scp, int n)
+{
+	int i;
+
+	if (n < 1)
+		n = 1;
+	i = (scp->xpos & ~7) + 8*n;
+	if (i >= scp->xsize) {
+		if (scp->ypos >= scp->ysize - 1) {
+			scp->xpos = 0;
+			scp->ypos++;
+			scp->cursor_pos = scp->ypos*scp->xsize;
+		} else
+			sc_move_cursor(scp, 0, scp->ypos + 1);
+	} else
+		sc_move_cursor(scp, i, scp->ypos);
+}
+
+static __inline void
+sc_term_backtab(scr_stat *scp, int n)
+{
+	int i;
+
+	if (n < 1)
+		n = 1;
+	if ((i = scp->xpos & ~7) == scp->xpos)
+		i -= 8*n;
+	else
+		i -= 8*(n - 1);
+	if (i < 0)
+		i = 0;
+	sc_move_cursor(scp, i, scp->ypos);
+}
+
+static __inline void
+sc_term_respond(scr_stat *scp, u_char *s)
+{
+	sc_paste(scp, s, strlen(s));	/* XXX: not correct, don't use rmap */
+}
+
+static __inline void
+sc_term_gen_print(scr_stat *scp, u_char **buf, int *len, int attr)
+{
+	vm_offset_t p;
+	u_char *ptr;
+	u_char *map;
+ 	int cnt;
+	int l;
+	int i;
+
+	ptr = *buf;
+	l = *len;
+
+	if (PRINTABLE(*ptr)) {
+		p = sc_vtb_pointer(&scp->vtb, scp->cursor_pos);
+		map = scp->sc->scr_map;
+
+		cnt = imin(l, scp->xsize - scp->xpos);
+		i = cnt;
+		do {
+			p = sc_vtb_putchar(&scp->vtb, p, map[*ptr], attr);
+			++ptr;
+			--i;
+		} while ((i > 0) && PRINTABLE(*ptr));
+
+		l -= cnt - i;
+		mark_for_update(scp, scp->cursor_pos);
+		scp->cursor_pos += cnt - i;
+		mark_for_update(scp, scp->cursor_pos - 1);
+		scp->xpos += cnt - i;
+
+		if (scp->xpos >= scp->xsize) {
+			scp->xpos = 0;
+			scp->ypos++;
+			/* we may have to scroll the screen */
+		}
+	} else {
+		switch(*ptr) {
+		case 0x07:
+			sc_bell(scp, scp->bell_pitch, scp->bell_duration);
+			break;
+
+		case 0x08:	/* non-destructive backspace */
+			/* XXX */
+			if (scp->cursor_pos > 0) {
+#if 0
+				mark_for_update(scp, scp->cursor_pos);
+				scp->cursor_pos--;
+				mark_for_update(scp, scp->cursor_pos);
+#else
+				scp->cursor_pos--;
+#endif
+				if (scp->xpos > 0) {
+					scp->xpos--;
+				} else {
+					scp->xpos += scp->xsize - 1;
+					scp->ypos--;
+				}
+			}
+			break;
+
+		case 0x09:	/* non-destructive tab */
+			sc_term_tab(scp, 1);
+			/* we may have to scroll the screen */
+#if 0
+			mark_for_update(scp, scp->cursor_pos);
+			scp->cursor_pos += (8 - scp->xpos % 8u);
+			mark_for_update(scp, scp->cursor_pos);
+			scp->xpos += (8 - scp->xpos % 8u);
+			if (scp->xpos >= scp->xsize) {
+				scp->xpos = 0;
+				scp->ypos++;
+			}
+#endif
+			break;
+
+		case 0x0a:	/* newline, same pos */
+#if 0
+			mark_for_update(scp, scp->cursor_pos);
+			scp->cursor_pos += scp->xsize;
+			mark_for_update(scp, scp->cursor_pos);
+#else
+			scp->cursor_pos += scp->xsize;
+			/* we may have to scroll the screen */
+#endif
+			scp->ypos++;
+			break;
+
+		case 0x0c:	/* form feed, clears screen */
+			sc_clear_screen(scp);
+			break;
+
+		case 0x0d:	/* return, return to pos 0 */
+#if 0
+			mark_for_update(scp, scp->cursor_pos);
+			scp->cursor_pos -= scp->xpos;
+			mark_for_update(scp, scp->cursor_pos);
+#else
+			scp->cursor_pos -= scp->xpos;
+#endif
+			scp->xpos = 0;
+			break;
+		}
+		ptr++; l--;
+	}
+
+	*buf = ptr;
+	*len = l;
+}
+
+static __inline void
+sc_term_gen_scroll(scr_stat *scp, int ch, int attr)
+{
+	/* do we have to scroll ?? */
+	if (scp->cursor_pos >= scp->ysize*scp->xsize) {
+		sc_remove_cutmarking(scp);		/* XXX */
+#ifndef SC_NO_HISTORY
+		if (scp->history != NULL)
+			sc_hist_save_one_line(scp, 0);	/* XXX */
+#endif
+		sc_vtb_delete(&scp->vtb, 0, scp->xsize, ch, attr);
+		scp->cursor_pos -= scp->xsize;
+		scp->ypos--;
+		mark_all(scp);
+	}
+}
+
+#endif /* _DEV_SYSCONS_SCTERMVAR_H_ */