[Coco] Memory available in NitrOS-9 ?

[univax!gatech!destroyer!trantor!kandur]

You may have missed my many postings regarding the 
128k memory problem, before upgrading my Coco-3 to 512k.
My solution may not help you with Dynacalc, requiring
graphic screens, but may help you in some other ways to use NitrOS-9. 
Look at HURDLE 4  in http://qdv.pw/coco/?p=185 

Kandur

Saturday, January 17, 2015, 1:00:01 PM, you wrote:
> Hello again, all,

> So, here I am wandering around in NitrOS-9 again...

> My system is a 128K CoCo 3 with HDBDOS in an EPROM cartridge, using Drivewire 4.

> I now know that NitrOS-9 cannot read any of my other .DSK images, so I cannot
> get any of my other files into NitrOS-9 easily.  Since I have not found the
> equivalent of the excellent FILE2DSK tool for OS-9 yet, this may become a challenge for me.

> Next, I figured that I'd go to one of the CoCo software repositories and pick
> up something to play around with.  I selected Dynacalc from Tandy for OS-9.  I
> inserted the .DSK image into my Drivewire server and took a look at it.  It
> appeared that the disk is supposed to be in drive 0, because it has files like
> OS9boot and STARTUP.  also at the top level is a file called DYNACALC.TRM.  I
> took a look into the CMDS directory, and there is DYNACALC, along with only a few other commands.

> Well, I am getting smart enough to understand that I probably cannot put this
> .DSK image into my Drivewire drive 0 and issue the DOS command, because the
> Tandy software probably has no knowledge of HDBDOS and probably won't boot. 
> But I did try to invoke the program by typing:  /X3/CMDS/DYNACALC.

> What happened next?  I watched Drivewire start out on my drive 0 (as
> expected) then move onto drive 3 (as I had hoped) and then after a couple of
> seconds, I got an error #207 - that's memory full.

> So, knowing that I am at least on the right track, I poked around a bit and
> found that the MFREE command tells me that I have 24K available, and the MMAP
> command shows me the same graphically.  So, in my 128K system, when I'm using
> NitrOS-9 I have only 24K memory left available for programs that I want to run.

> NOW I know why many folks here on the list are so interested in obtaining more memory for their machines!

> Thanks for listening.  I'll continue to putter around with this.

> smp
> --
> Stephen M. Pereira
> Bedford, NH  03110
> KB1SXE