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 and AsmPrgmCE), 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 in 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 in correctly.
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Table of Contents
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Toggle Program Mode
:AsmPrgm84C
:FD7E08EE02FD7708C9
When used in a program, it allows you to use Archive and UnArchive on other programs. warning: Make sure to switch back to "program mode" when you're done by running the program again.
Screen to Graph [TO DO]
Quick Key [TO DO]
Text Inverse
:AsmPrgm84C
:FD7E05EE08FD7705C9
This will switch from normal text mode to inverse (white text on black background) and vice versa.
Lowercase
Lowercase On
AsmPrgm84C
:FDCB24DEC9
Lowercase Off
AsmPrgm84C
:FDCB249EC9
Lowercase Toggle
AsmPrgm84C
:FD7E24EE08FD7724C9
This will toggle lowercase on or off
Fill Screen [TO DO]
LCD Clear [TO DO]
White [TO DO]
Black [TO DO]
Border [TO DO]
White Border [TO DO]
Black Border, Clear Inside [TO DO]
Invert Screen [TO DO]
Change contrast level [TO DO]
Set Contrast [TO DO]
Decrease Contrast [TO DO]
Increase Contrast [TO DO]
Run Indicator [TO DO]
Run Indicator Off [TO DO]
Run Indicator On [TO DO]
Toggle Run Indicator
AsmPrgm84C
:FD7E12EE01FD7712C9
Note that when this routine turns the run indicator off, it doesn't erase the run indicator, it simply stops it. You can do this yourself — either by outputting something to the top right corner, or by clearing the screen (ClrDraw or ClrHome, doesn’t matter).
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]
Calculator Off [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 [TO DO]
Unarchiving [TO DO]
ToggleArch [TO DO]
Reset Defaults [TO DO]
Reset RAM
AsmPrgm84C
:C7
DelVar [TO DO]
Miscellaneous
Remove Cursor
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?
Edit Lock/Unlock Program [TO DO]
Battery Check [TO DO]
ASCII [TO DO]
AsmPrgm84CE
:EF7BCD500f02CD700F02CDB80702C9
Display an ASCII character at the last cursor position, using Ans (0 to 255) (TI-84 Plus CE)
Error [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.
