Tutorial on how to program ASM on your TI-83 graphing calculator

What's Next?

If you've learned to program your TI-83, you've just learned fundamental basics of programming. QBasic is a good lanquage to help you migrate into more modern languages. Learn more...

Learning ASM

This tutorial will teach you some simple commands, and how to compile and run a program.

What is required to program in ASM:

- Texas Instruments TI-83 graphing calculator
- TI Graph-Link 83 cable or equivalent
- TI Graph-Link 83 software or equivalent
- 486 computer with Windows 3.1 or better
- Virtual TI Emulator software (recommended)
- Previous knowledge in programming
- ASM Developer Package or the individual files.

The ASM Package includes pic83.zip, include.zip, 83lnk.zip, tasm301.zip, and ASMBatch.zip. Extract all these files into a directory on your harddrive using WinZip or Pkunzip. Extract them all to the same directory, like C:\ASM
Now you need to start writing your first program. When you are writing, a semi-colon after a command, will make the assembler ignore the part after the semi-colon(;). That way you can put notes in the program's code. To write this program use Notepad in windows, MS-DOS edit, or some other plain ASCII file editing program.

Preview

I will give you the program code first, then tell you what it means. So write or copy-paste this into notepad.

.NOLIST
#define equ .equ
#define EQU .equ
#define end .end
#include "ti83asm.inc"
#include "tokens.inc"
.LIST
.org 9327h

    call _clrLCDFull ;Clear the screen.
    ld hl,0003 ;Put 3 into Hl.
    ld (currow),hl ;Put HL into cursor row.
    ld hl,mem ;Loads text in hl.
    call _PUTS ;Ends string....
    ret ;Return to basic mode.

mem: ;This is your label.

.db "Hello in ASM!",0

.end

END

Now save your file into your ASM directory. Example: C:\ASM
and save it as TEXT.Z80

Preview

Now click on START, then PROGRAMS, then MS-DOS Prompt.
Then type cd\asm ("cd" stands for Change Directory, "\" for root, and "ASM" for the name of your ASM directory.) If your ASM directory is somewhere else, change the /ASM to whatever it is.
Now type ASM TEXT
This will run the batch file that compiles the Z80 file into a 83p file (TI-83 program file).
Important: If you don't use all CAPITALS in the syntax for ASM, example: if you type asm text instead of asm TEXT, the program will appear on your calculator with lowercase letters, making it un accessible from TI-OS or Basic programs.

Preview

Now you can close the MS-DOS Prompt and Notepad, and open TI-Graph Link 83 or any other Link program. Now send the file C:\ASM\TEXT.83P to your calculator by clicking OK

Preview

Now after the program in done being copied to the calculator, press 2nd CATALOG, then S, then move down to Send( and press Enter. Now press 9, then PRGM, and select TEXT off the menu and press Enter. You must put Send(9 before the program name so the calculator will recognize it as an ASM program. If you don't do this, it will just give you a syntax error.

This is what your nifty little program should do:

Program results

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