Thanks for your work on the firebird!
I tried to get it to run on a tablet:
galaxy nexus 10
android 5.1.1
Did load the newest version/1.20. Used polydumper 4.3 on my Nspire cx cas and transferred the 4 files to the tablet. Put this files and os 4.4.0.532 in one folder and deleted the .tns extensions of the 4 nspire files.
Started the firebird apk. At right side there was the keyboard of the nspire. Moved it left, but then I couldn't go on with the 2 installation help files on github.
Selected boot1, went good. Selected the os file, also ok. Third entry for selecting a save point I couldn't serve. Klicking button led me to the folder where firebird is installed (root\data\data...). Couldn't select any file, also simply using save botton didn't work. Changed folder to that where I put all files in at installing, couldn't also select any file, couldn't also not make a new file. So got no save point. Tried then to choose the os file, it got selected and shown in the 3rd 'Flash&Boot' menu, but still I couldn't save anything, also the start bomb told that 'boot1 and/or flash are missing'. At right side they are both shown at the 'boot1' and 'flash' menu entries. Any function for creating a flash save file I can't find. I think the main problem is that I don't get a save point. What to do? Tried the also vers. 1.1 and 0.3 but that didn't help (same problem at 1.1, no keyboard at 0.3).
Tried then the newest windows version but after starting firebird.exe (admin) on a win7-64 notebook I got the info 'api-ms-win-core-libraryloader-l1-2-0.dll' is missing.
Can you help me? Would prefer use the android version.

I wrote about making the handling of nAssembler easier-so I tried by myself. But without being used in python I had no success. Was changing your code a little bit (yes, I know, it's a sacrileg), so that not the path but only the file name must be entered or in the other version path & filename get fixed to get a quick turnaround:

when I change your code at the end of the nassembler file

def calc_assemble():
   
    inf = input('in:')
    outf = input('out:')
    return assembler(inf, outf)

to

def calc_assemble():
   
    inf = /documents/ndless/example.asm.tns
    outf = /documents/ndless/example.prg.tns
    return assembler(inf, outf)

or

def calc_assemble():

    inf = /documents/ndless/
    inf = inf + input('in:')
    outf = /documents/ndless/
    outf = outf + input('out:')
    return assembler(inf, outf)

all that doen't work, I get the 'File "/documents/ndless/nAssembler.py.tns", line 1600 Syntax Error: invalid Syntax. Tried also backslash for slashes but same reaction. Am wondering why I see 'nAssembler.py.tns' at the end of the string and not 'Example.asm.tns' as i wrote.

Found it now, was not so difficult:
inf="/documents/ndless/example.asm.tns"
and
outf="/documents/ndless/example.prg.tns"
so the turnaround gets a little faster. Now I am trying to get the clrscrn/countdown routine of grosged/TI Planet to assemble with nassembler. Last problem is the .word instruction. Hm, I saw this point anywhere in a forum...

nTxt is a text editor for the Nspire. It requires Ndless to be installed on your calculator.

Hi ikj,
am just trying the v. 26 of nTxt. It works good but there seems to be a bug: by selecting one or more signs in a text and using ctrl-c the nspire reboots. Treid it several times, can not find any reason.
My Nspire: cx cas, os 4.4, also ndless. With nTxt v. 25 I get the same reboot.
cu
klaus

Nice!

There has recently been some activity in the thread on tiplanet, and as a result I also made some updates, adding CLZ, ADR, and fixing a bug. I forgot to update the file in the first post, so now I removed it and added a link to the download on tiplanet, which should always be up to date.

---

It's working now, was a simple mistake I made: for testing micropython 134 and 146 I did rename the both files (micropython 134 for example). So the .py files couldn't get connected and also nAssembler didn't run. Now everthing works.

I'm glad that it works now. Thanks for your many comments. I'm going to reply to some of their concerns below.

I agree that more documentation, more examples and some explanations of the examples would help. But my main reasons for starting this project were that I was interested in writing an assembler, had a lot of time with nothing to do, and I was always a bit annoyed that it was impossible to write native programs for the Nspire on-calc. Nowadays, I don't have much time, and I've accomplished my main goal of writing an on-calc assembler with most of the useful features.

I may try to write another example or two, but for more, other people will have to do it. So, you're welcome to do it 

Jessus, Mary and Jo'... you say this to ME? IoI. There was a time when I was a little trying with Z80 Assembler on my ZX Specci. Hm, must have at 1983 or so... And by the time there came some nice books from UK about machine code routines and lastly the whole commented ROM of the Specci. So all system call could be used from the usual languages. Now i had what I needed but then my study ended, I got a job for long time and the lot of free time was gone. So how is it about the nspire os? Up to now I didnt find any large file or book w/o commented os routines, system calls, system variables. Some must be known, otherwise you wouldn't use a print function, input file and others in your code.

There probably already are some ARM assembler tutorials on the internet, for example for the GBA, but they can't explain the things specific to the Nspire, e.g. how to read the keyboard or display stuff (see https://hackspire.org and in particular https://hackspire.org/index.php/Memory-mapped_I/O_ports for that kind of thing), and they probably use some pseudo-instructions I didn't implement or some different syntax, which will require some experimenting and/or googling to adapt to nAssembler.

Yes, by searching I found several tutorials, it's very nice. Good, that the arm cpus are so much used. Indeed, what you telling about nspire os is the main point. Using/usability of an assembler depends from the documentation of the used machine. Also important, if this mc programs can easily be used from the usual languages as lua, python, c++, c. Should be simple calls that can easy done. And especially grafik routines, of course. I think, everyone, who is programming the nspire would be interested in this.

Also, grosged over on tiplanet wrote a small demo and a short explanation of ARM assembly, but it's in French. (example link: https://tiplanet.org/forum/archives_voir.php?id=839558, the file nsprtest.s is the code compatible with nAssembler)

Yes, and I will translate it by the time. Will surely need a little longer. In french I got at school usually the lowest note (from 1-6), the 6. But under those, who got ever the 6, I was one of the best. Means the 'best of the worst'. Sounds good, eh? :-) So it may need some time, also with using babelfish. Some time before, I saw a small list with os system calls. Damn, i don't remember where.

The resonance at TI Planet when you presented nAssembler was good, so I think there may be some who like to support the usage of it.

One first suggestion to the nAssembler: the handling is rather uncomfortable by typing the complete paths with the nspire keys. Could a file like the batch files of ms dos (in python?) make it simpler? Setting the paths to a constant one means that only the program name must be entered. If one has longer to do with a program he could also set the name in this batch file constant, so the the whole turnaround would be much shorter and simpler.

It's working now, was a simple mistake I made: for testing micropython 134 and 146 I did rename the both files (micropython 134 for example). So the .py files couldn't get connected and also nAssembler didn't run. Now everthing works.

Hi ikj,
may be there are some things missing, that only few people shows interest to your assembler.
Some points:
-installing should be easy. In the text file its explained, but not every beginner is able to work with it. A step by step describing would be better and it should content every step, also installing ndless and microphyton and pyWrite or another editor. Should folders me made? Which and where? For example, it's not clear in the beginning, that files have to be put in an ndless folder at root.
For example, I didnt get the nassembler to work up to now (already asking vogtinator about this).
Am using a nspire cx cas,
using os 4.4,
installed ndless 4.4,
started micropython (134/146) one time, as its told,
started nassembler but get error abour file format not supported.
May be that and the not so clear installation info hinders some interested people to try it.
Some simple lessons how to make the first short programs would be very helpful, some example programs you have already in your zip.
If you like I can give some more hints to that point.
cu
klaus

It's not the big thing but some simple aspects:
-as I said, a little more detailed instruction for all installing steps would be easier for the not so used ones. For example:

1. Get the actual OS version (now 4.4.0.xxx) from
https://education.ti.com/de/software/details/en/E7EE7A44207B41069B05C45A8149A7F9/ti-nspirecx_os
(don't know if links are allowed, otherwise a description how to get it from TI)
2. Install it. TI Link Software is needed.
if TI Link is not installed, load it from
https://education.ti.com/de/software/search/ti-nspire-cx-cas
and install it
3. backup everything on your nspire, all files will be deleted!
4. Start TI Link, connect your Nspire to your PC and install the new OS. Wait until all is done.

and so on. It's more in the style of 'XXX for dummies' or the 'Leittext Methode' (did work with it in education and it worked rather good. Especially beginners did like it.

Then some short lessons to help the people to learn how to handle the assembler, some basic infos and the example code for the first steps would hold it small and simple. Your examples can used for it very good. I think, what to do would be more some optical work and the principle of small steps as above. If you like I would try to do also some work for this (good chance to learn more about assembler...). It's clear to me that it can be a try to interest people and noone could say if this works. On worst case it would make loosing some time and work, but in every case it's a chance to get some more training by doing this (designing the lessons for example, improving my rude english :-)).

I didn't know anyone ever used this, so I didn't continue work on it 
What useful features are missing in your opinion?

[/quote]

Hi ikj,
may be there are some things missing, that only few people shows interest to your assembler.
Some points:
-installing should be easy. In the text file its explained, but not every beginner is able to work with it. A step by step describing would be better and it should content every step, also installing ndless and microphyton and pyWrite or another editor. Should folders me made? Which and where? For example, it's not clear in the beginning, that files have to be put in an ndless folder at root.
For example, I didnt get the nassembler to work up to now (already asking vogtinator about this).
Am using a nspire cx cas,
using os 4.4,
installed ndless 4.4,
started micropython (134/146) one time, as its told,
started nassembler but get error abour file format not supported.
May be that and the not so clear installation info hinders some interested people to try it.
Some simple lessons how to make the first short programs would be very helpful, some example programs you have already in your zip.
If you like I can give some more hints to that point.
cu
klaus

I didn't know anyone ever used this, so I didn't continue work on it 
What useful features are missing in your opinion?

Hi Jens,
now I am using your editor some time and I like to work with it very much. Now at this time I have to do with strings that fill the display (text game). Problem: no word wrap by the hard-/software. I found some code for this but like more the simple way: a lineal that shows me the cursor position. So here is my idea, if you like to add something to your editor: a position counter for lines and rows. It would be much easier to enter long strings with it and give a simple way to make word wrap w/o setting separators by hand. What do you think about this? Yes, I know that you closed the editor project. But maybe you like to take your code again in the hand...
cu
klaus