1 Jan
2015
1 Jan
'15
5:11 a.m.
Well, it's just me teaching my kid recursion in c, so it's kind of informal
and I'm just clearing the screen to repaint it a second later with
changes. It's too bad that curses adds so much overhead. I'll have to
compare the resultant a.outs to confirm exactly how much.. Not that it
matters for a play program, really, more of a curiosity..
Thanks again Mary Ann!
On Wed, Dec 31, 2014 at 6:06 PM, Mary Ann Horton <mah(a)mhorton.net> wrote:
Jacob,
Are you just clearing the screen in an otherwise scroll-oriented program,
or are you doing graphics by clearing and repainting a similar screen when
something changes?
The termcap "cl" method is perfect for the former, but curses is better
suited for the latter.
Mary Ann
On 12/31/2014 02:30 PM, Jacob Ritorto wrote:
I'm actually running an old CIT-101 from c.itoh. The pdp11 is currently
just simh on a raspberry pi, but I have a lot of pdp11 hardware in various
states of disrepair. my 11/73 ran 2.11bsd nicely has a burned out power
supply and I haven't been able to fix it.
I checked out the curses man page in 2.11 and tried to use curses clear,
but it really does tack on a lot of overhead & slows things down. So I'm
now tempted to just cheat, keep it simple, find a simple escape string that
works on real vt100s as well as xterms, etc. and just printf it.
On Wed, Dec 31, 2014 at 4:05 PM, Clem Cole <clemc(a)ccc.com> wrote:
Ah - that makes sense, and since VT-100 are not
fully ANSI, that's
likely why it's not listed in my circa 1976 VT-100 programmers manual and
probably why it does not work for Jacob. ;-)
Clem
On Wed, Dec 31, 2014 at 3:45 PM, Erik E. Fair <fair-tuhs(a)netbsd.org>
wrote:
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The sequence ESC-c is ANSI X3.64 for "reset
to initial state" which
happens to clear the screen, among other things. I still use it
frequently to reset Mac OS X "Terminal" windows to a sane state,
manually entered.
Erik <fair(a)netbsd.org>