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Add insert and delete line capabilities.

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This commit is contained in:
mycroft 1994-02-23 18:42:04 +00:00
parent 21bf639b81
commit 5dfb68e441
1 changed files with 41 additions and 3 deletions
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44
sys/arch/i386/isa/pccons.c
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@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)pccons.c 5.11 (Berkeley) 5/21/91
* $Id: pccons.c,v 1.43 1994/02/23 00:54:45 mycroft Exp $
* $Id: pccons.c,v 1.44 1994/02/23 18:42:04 mycroft Exp $
*/
/*
@ -945,11 +945,30 @@ sput(cp, n)
vs.state = 0;
break;
}
case 'M': { /* delete cx rows */
u_short *crtAt = crtat - vs.col;
int cx = vs.cx,
row = (crtAt - Crtat) / vs.ncol,
nrow = vs.nrow - row;
if (cx <= 0)
cx = 1;
else if (cx > nrow)
cx = nrow;
if (cx < nrow)
bcopy(crtAt + vs.ncol * cx,
crtAt, vs.ncol * (nrow -
cx) * CHR);
fillw((vs.at << 8) | ' ',
crtAt + vs.ncol * (nrow - cx),
vs.ncol * cx);
vs.state = 0;
break;
}
case 'S': { /* scroll up cx lines */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
if (cx > vs.nrow)
else if (cx > vs.nrow)
cx = vs.nrow;
if (cx < vs.nrow)
bcopy(Crtat + vs.ncol * cx,
@ -962,11 +981,30 @@ sput(cp, n)
vs.state = 0;
break;
}
case 'L': { /* insert cx rows */
u_short *crtAt = crtat - vs.col;
int cx = vs.cx,
row = (crtAt - Crtat) / vs.ncol,
nrow = vs.nrow - row;
if (cx <= 0)
cx = 1;
else if (cx > nrow)
cx = nrow;
if (cx < nrow)
bcopy(crtAt,
crtAt + vs.ncol * cx,
vs.ncol * (nrow - cx) *
CHR);
fillw((vs.at << 8) | ' ', crtAt,
vs.ncol * cx);
vs.state = 0;
break;
}
case 'T': { /* scroll down cx lines */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
if (cx > vs.nrow)
else if (cx > vs.nrow)
cx = vs.nrow;
if (cx < vs.nrow)
bcopy(Crtat,