Example of Inputting Hex Code
There are all sorts of small assembly programs that you can create simply using the calculator's built-in assembly commands (specifically, AsmPrgm84C), along with the appropriate hexadecimal code. In order to run a program, you need to use the Asm( command, where Asm(prgmPROGNAME is the program that contains the hexadecimal code.
As a word of caution, when entering the hexadecimal, you need to be very careful that you type it in exactly as you see it. If there is a single incorrect character, the calculator might crash and reset your RAM when you turn it on again. We have tested the hexadecimal codes to make sure they work, but it's up to you to enter them incorrectly.
These hexcodes only work on the TI-84 Plus CSE. See the following pages for monochrome calcs or the CE.
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Table of Contents
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Simulated Key Presses
Alpha Lock
AsmPrgm84C
:3E51FD7712C9
This simulates [2nd][Alpha]
Alpha Lock (No disable)
AsmPrgm84C
:3ED1FD7712C9
This is the same as the first, but you have to press [2nd][mode] to disable it.
Lowercase Press
AsmPrgm84C
:3E31FD7712C9
This works even if lowercase isn't enabled.
Lowercase Lock
AsmPrgm84C
:3E71FD7712C9
This simulates [2nd][Alpha][Alpha].
Lowercase Lock (No disable)
AsmPrgm84C
:3EB1FD7712C9
This can only be disabled by pressing [2nd][mode]
Alpha Off
AsmPrgm84C
:3E01FD7712C9
[2nd]
AsmPrgm84C
:FDCB12DEC9
An interesting use of these codes can be for prompting user input (If you run Alpha Lock, for example, Input will start with an Alpha press.
If you run the Alpha Lock that can't be disabled at the start of your program and a user presses ON (or an error occurs), you will not be able to select the options, so you are forced to press [2nd][mode].
Disabling "Done" Message
To disable the "Done" message at the end of a Basic program:
AsmPrgm84C
:FDCB00AEC9
Un-Dirty Graph Screen
:AsmPrgm84C
:FDCB0386C9
This will mark the Graph Screen as not dirty. Using ClrDraw will mark the Graph Screen as dirty so the next time it is displayed the screen will be cleared. Many ASM libraries (such as xLIB) modify the graph buffer without displaying the screen which might be unintentionally cleared.
Turn Calculator Off [TO DO]
LCD Off [TO DO]
LCD On [TO DO]
Toggle LCD Power [TO DO]
Auto Calc
Auto DMS
AsmPrgm84C
:FD360A06C9
Auto DMS displays all decimals in Degrees-Minutes-Seconds on the home screen, automatically.
Auto Fractions
AsmPrgm84C
:FD360A0CC9
Auto Fractions will display decimals as fractions (if it can) on the home screen, automatically.
Screen Shifting [TO DO]
Shift Screen Right 1 [TO DO]
Shift Screen Left 1 [TO DO]
Shift Screen Up 1 [TO DO]
Shift Screen Down 1 [TO DO]
Shift Screen Right 4 [TO DO]
Shift Screen Left 4 [TO DO]
Shift Screen Up 4 [TO DO]
Shift Screen Down 4 [TO DO]
Memory Functions [TO DO]
Free RAM [TO DO]
Archiving
AsmPrgm84C
:CD500F02D604C0
:EB010000004E234623
:11F805D0EDB0
:12CD0C0502D8CD98
:1F02C0
:C3481402
The input is a string in Ans, as detailed here.
Unarchiving
AsmPrgm84C
:CD500F02D604C0
:EB010000004E234623
:11F805D0EDB0
:12CD0C0502D8CD98
:1F02C8 ;Only difference
:C3481402
ToggleArch [TO DO]
Reset Defaults [TO DO]
Reset RAM
AsmPrgm84C
:C7
DelVar [TO DO]
Miscellaneous
Turn Cursor Off
AsmPrgm84C
:FDCB0CE6C9
This is harmless, but it stops displaying that blinking cursor :D Just press [2nd][MODE] to put it back to normal. What, jokes are allowed, right?
Turn Cursor On
AsmPrgm84C
:FDCB0CA6C9
Edit Lock/Unlock Program [TO DO]
Battery Check [TO DO]
ASCII [TO DO]
Advanced [TO DO]
CharLength [TO DO]
String Pixel Width [TO DO]
ListToVars 1 [TO DO]
ListToVars 2 [TO DO]
ExecAns [TO DO]
RepeatKeys [TO DO]
FastKeys [TO DO]
MultiKeys 2 [TO DO]
Sprite [TO DO]
References
Most of these are ported from the TI-83+ Hexcodes page.
Note
Some documentation had been updated for recent updates and functionality.