Hello All!

I was interested by the concept of programming in Assembly. I am an experienced programmer proficient in multiple language, and it occurred to me that I should write a Z80 Assembly program for my TI 84 C Silver Edition. I am relatively new to assembly, having studied higher level languages such as C++ and C#. TI-BASIC is too slow and feature-lacking for my purposes, so I have turned to Assembly.

I used the code from a tutorial for writing Assembly for the TI 84 Plus, but every time I execute the compiled .8XP on my calculator, (built with Brass and var8x) I get a "BASIC Exec error: SYNTAX." Additionally, the program, which was actually ASM, shows up as BASIC in Doors CSE 8.1.

This is my current code:

Code:


I was shocked and disappointed to see that even my simple Hello World program would not run. Please help me and either correct my code or give me a skeleton that I can use in writing my TI 84+CSE ASM programs!

HELP!!!!!

Thanks,

Oda Hideyoshi

Sure; of course. I believe the issue is on this line:

Code:

Which has been changed to this for the CSE line:

Code:

Hope this helps! 🙂 Also, welcome to Cemetech, odahideyoshi!

yes it really does! thanks! Is that my only error?

Welcome to Cemetech! It sounds like you're potentially using an older version of TI-83 Plus ASM in 28 Days. Although it's still not going to directly apply to the color calculator, our newer version fixes a number of the errors in the older tutorial:
http://media.taricorp.net/83pa28d/lesson/toc.html

In other news, what tools are you using to build and test your programs? If you need help with things like an assembler or an emulator, we can certainly help.

@KermM:

Neither of those is an emulator or a toolchain, so I figured it was still worthwhile to ask. 🙂 If he wasn't entirely pleased or was looking for new suggestions, I was going to suggest the Doors CSE SDK or SourceCoder, used with jsTIfied, since he mentioned Doors CSE in the first post.

The code now shows up as ASM (you caught the problem, thanks!) but when I execute it, it shows "E[theta symbol]Hello World" instead of just "Hello World." How do I fix this?

Finally, I have seen smaller font on other assembly programs--how do I implement this in my program?

Thanks,
Oda Hideyoshi

You're subtracting two from the ProgStart twice:
Code:
You only need -2 in one place. If you wanted to use small font in this example, you'd use pencol instead of curcol, penrow instead of pencol, and _vputs instead of _Puts.

Sorry: that was foolish of me:
I didnt realize that userMem-2 was a minus expression (silly me) i thought it was a location in memory.

Thank you!

What would you suggest that I use to test my compiled Assembly programs? I am currently using WabbitEmu, but it is annoying because I need to load and save states before uploading the program, and this is quite a hassle. What are my alternatives?

Thanks,
Oda Hideyoshi

Well, there is always JsTIfied: http://www.cemetech.net/projects/jstified/
But as for the saving and restoring the state in WabbitEmu, you should only need to press F10 and reload your program. It should automatically overwrite any program; and if not, you can always delete the .sav file located in AppData\Roaming\Wabbit. 🙂

I imagine you can write a simple .bat file that assembles your code and sends it to WabbitEmu automatically, something like:

Code:
That's more or less what my asm work environment looks like, except with TilEm2.