[Coco] NitrOS-9 Differences.

[gene heskett]

On Thursday, June 02, 2011 10:22:21 PM Stephen H. Fischer did opine:

> Hi,
> 
> Gene: Here is the reason the ShellPlus command "t" is so useful.
> 
> I think now that my memory is faulty and that the current shell state is
> not passed to the forked one.
> 
I don't believe it ever was.  Understand that tmode works only on the shell 
that executes it. xmode OTOH, effects every window or device, according to 
the descriptor which is modified by xmode.

For instance, assume you want the pause set for /w4, then from any shell 
"xmode /w4 pau=1" will set that particular descriptor to be a pausing 
window, with the pause every pag(its a hex byte) lines.  However, it does 
not effect a window currently in use, launched using the /w4 descriptor, 
because that shell already is using the values that were in the descriptor 
at the time the window is launched.  Therefore, to make use of the new 
settings for /w4, the shell must be killed and the window closed.  A new 
shell can then be started on /w4, and the option will then be in effect.

> BUT THEN, read the description of "PATH=", that clearly says it is
> passed. So why not the rest?

PATH= is the path to a file, and has no connection that I know of to either 
of the 3 already in effect shell paths for stdin, stdout, and stderr.

> --------------------------------------------
> 
> OS9:dir -e
>  Directory of .  2011/06/02 16:49  Owner  Last modified   Attributes
> Sector Bytecount Name
> ----- ---------------- ---------- ------ --------- ----
>    0  2011/05/30 21:53  ----r-wr     474       1A7 makefile.tk
>    0  2011/05/30 12:13  ----r-wr    180B        73 make.s
>    0  2011/05/29 20:25  ----r-wr    1165        82 compile.s
>    0  2011/05/28 20:24  ----r-wr    180D      2FDC archive.p2.c
>    0  2011/05/28 20:24  ----r-wr    180E       88C archive.p3.c
>    0  2011/05/28 20:24  ----r-wr    180F       3B5 archive.p4.c
>    0  2011/05/28 20:26  ----r-wr    1810       225 hires.h
>    0  2011/05/29 14:32  ----r-wr    181E        70 link.s
>    0  2011/05/30 12:03  ----r-wr    1149       195 makefile
>    0  2011/05/29 20:25  ----r-wr    1811        7F compile.s.bak
>    0  2011/05/30 12:35  ----r-wr    1818      15B5 archive.p2.r
>    0  2011/05/30 12:36  ----r-wr    1819       47F archive.p3.r
>    0  2011/05/30 12:36  ----r-wr    181A       24B archive.p4.r
>    0  2011/05/30 12:17  ----r-wr    181B       AEE archive.h.bak
>    0  2011/05/30 12:43  ----r-wr    1814      1835 archive.p1.r
>    0  2011/05/28 16:17  ----r-wr    1194       1A7 makefile.bak
>    0  2011/05/30 12:42  ----r-wr    1801      2037 archive.p1.c
>    0  2011/05/30 07:17  ----r-wr    1145       1A6 archive.makefile.bak
>    0  2011/05/30 12:23  ----r-wr    180C      2000 archive.p1.c.bak
>    0  2011/05/30 07:17  ----r-wr    1146       1A1 archive.makefile
>    0  2011/05/30 12:17  ----r-wr    181C       AEE archive.h
> 
> OS9::VDIR *.c
> VDIR archive.p2.c archive.p3.c archive.p4.c archive.p1.c
> 
> OS9:var.?
> 
> The results of this command is in the attachment, I cannot find a way to
> direct it to a file or "/p". BUG BUG!!
> --------------------------------------------

It might be possible to redirect .1 to a file out to /p, but I suspect that 
would confuse the shell too.
 
> The expanded VDIR line allows me to skip the "var.?' step as %%0 is the
> first variable contents (archive.p2.c), %%1 the second up to %%9 the
> last one.
> 
> Then I usually do something like OS9:SLED %%2
> 
> It works even if the number of files in the directory is hundreds.
> 
> When I wrote VDIR it was described as a ShellPlus Sub Shell "Variable
> DIRectory loader" but it is actually much more.
> 
> For example: "OS9:VDIR %0 %1 %2 %3 %4 %5 %6 %7 %8 %9" will transfer the
> %0 ... %9 variables to %%0 ... %%9 thus freeing up the %0 ...%9 set for
> other uses (MCList.s).
> 
> "OS9:VDIR abc xyz bello12 any string that does NOT Have _Spaces" will
> work.
> 
> VDIR.lzh is on my webpage.
> 
> -------------------------------------------
> 
> Robert: I took the process several steps further.
> 
> I dumped and looked at the Tandy Windows and found some errors.
> I thought about what the most useful set of windows would be.
> I then created asm source for the Windows.
> 
> That is how I was able to have two, three and four windows on one screen
> at the same time. To use them a new OS9Boot would be needed to be
> created.
> 
> > I solved this problem in a different manner with a routine I wrote to
> > create 80
> > column text windows; each with a different border color.
> 
> I did exactually the same with the first windows in my OS9BOOT file. The
> second set is set up for multiple windows on the same screen.
> 
> I am going to look in creating the a window with just one script and
> having "t" and TMODE pau=1 is effect. I remember vagely how to do this
> 
> SHF


-- 
Cheers, Gene
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<http://www.cantrip.org/gatto.html>
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