84+CSE Hexcodes

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.

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

Asm84CEPrgm
:CD101A02C9

Clears the LCD.

LCD Clear and redraw Status Bar

Asm84CEPrgm
:CD101A02CD3C1A02C9

Same as LCD Clear, but redraws the Status bar.

White

Asm84CEPrgm
:210000D436FFE5D11301FF5702EDB0C9

Black

Asm84CEPrgm
:210000D43600E5D11301FF5702EDB0C9

Fill Screen with color value in Ans (0-255, from xLibC palette)

Asm84CEPrgm
:CD500F02CD700F02320000D4210000D4E5D11301FF5702EDB0C9

Border [TO DO]

White Border [TO DO]

Black Border, Clear Inside [TO DO]

Invert Screen [TO DO]

Change brightness level (ti-84 plus CE)

Set Brightness

Asm84CEPrgm
:CD500F02CD700F02322400F6C9

Set the brightness to a value between 0 and 255 stored in Ans, 255 is low, 0 is high.

Decrease Brightness

Asm84CEPrgm
:3A2400F63C322400F6C9

Decrease the brightness by 1. Run many times to see a noticeable difference.

Increase Brightness

Asm84CEPrgm
:3A2400F63D322400F6C9

Increase the brightness by 1. Run many times to see a noticeable difference.

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

Asm84CEPrgm
:CD841402C9

Disable APD

Asm84CEPrgm
:CD341102C9

Disables Automatic Power Down on ti ti-84 plus CE.

Enable APD

Asm84CEPrgm
:CD381102C9

Enables Automatic Power Down on ti ti-84 plus CE.

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

Asm84CEPrgm
:FDCB0CA6C9

Draw Ti Logo

Asm84CEPrgm
:CD001B02C9

Draws the TI logo

Edit Lock/Unlock Program [TO DO]

Battery Check [TO DO]

ASCII [TO DO]

Error

Asm84CEPrgm
:CD500F02CD700F02CD900702C9

This code will cause an error to be thrown, based on the value in Ans. The values correspond to the ones found here. Use your browser's search tool to look for "E_Overflow" which is Error 1. By default, there is no Goto option unless you add 128 to the values. So for example, for a divide by zero error with a goto option, use 130 as the error code.

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.