[TUHS] I swear! I rtfm'ed

[Jacob Ritorto]

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 at 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 at 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 at netbsd.org>
>> wrote:
>>
>>> 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 at netbsd.org>
>>>
>>
>>
>
>
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