From af2f08c3ae7043bd91601daac047801532ef990f Mon Sep 17 00:00:00 2001
From: yokota <yokota@FreeBSD.org>
Date: Thu, 24 Jun 1999 13:04:33 +0000
Subject: Fix ESC[P (delete N chars) and ESC[@ (insert N chars).  These
 deletion and insertion should affect the line the cursor is on only.

This change should have been committed together with syscons.c rev 1.308.
(I forgot to do so, when I committed syscons.c :-(

Pointed out by: sos
---
 sys/dev/syscons/scvtb.c   | 20 +++++++++++++++++++-
 sys/dev/syscons/syscons.h |  3 ++-
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/sys/dev/syscons/scvtb.c b/sys/dev/syscons/scvtb.c
index a7d1a71..3c62ec9 100644
--- a/sys/dev/syscons/scvtb.c
+++ b/sys/dev/syscons/scvtb.c
@@ -23,7 +23,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $Id:$
+ * $Id: scvtb.c,v 1.1 1999/06/22 14:13:30 yokota Exp $
  */
 
 #include "sc.h"
@@ -232,6 +232,24 @@ sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr)
 }
 
 void
+sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count)
+{
+	if (from + count > vtb->vtb_size)
+		count = vtb->vtb_size - from;
+	if (to + count > vtb->vtb_size)
+		count = vtb->vtb_size - to;
+	if (count <= 0)
+		return;
+	if (vtb->vtb_type == VTB_FRAMEBUFFER) {
+		bcopy_io(sc_vtb_pointer(vtb, from),
+			 sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t)); 
+	} else {
+		bcopy((void *)sc_vtb_pointer(vtb, from),
+		      (void *)sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t));
+	}
+}
+
+void
 sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr)
 {
 	int len;
diff --git a/sys/dev/syscons/syscons.h b/sys/dev/syscons/syscons.h
index da48c7c..d7f3d19 100644
--- a/sys/dev/syscons/syscons.h
+++ b/sys/dev/syscons/syscons.h
@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *	$Id: syscons.h,v 1.47 1999/04/12 13:34:56 des Exp $
+ *	$Id: syscons.h,v 1.48 1999/06/22 14:13:32 yokota Exp $
  */
 
 #ifndef _DEV_SYSCONS_SYSCONS_H_
@@ -496,6 +496,7 @@ void		sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2,
 			      int count);
 void		sc_vtb_seek(sc_vtb_t *vtb, int pos);
 void		sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr);
+void		sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count);
 void		sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr);
 void		sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr);
 
-- 
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