I can't seem to install any of these.

Also, a little elaboration.
map0-map9 will be the giant map strings, or I might make 250 smaller strings: map00 - map024, ..., map90 - map 924 for convenience. They will all be archived. If the large strings are used, then I will retrieve the appropriate segment on demand. If I use the small strings, then I will make a temporary copy in RAM. Either way, the temp copy will be named mapt or similar.
The quest objectives will be stored in a function called questobj(id) or if there aren't too many quests, a list called questobj. The list might be split up into several smaller lists in order to increase speed. Whatever format I am using, the file will be archived.
npc or npc(id) (again, it depends) will be the coordinate lists for NPCs. Again, it's archived.
spells(id) will be the function storing the necessary lists for spells.
shop(list) will be the shop program.
hit(action, arg1, arg2, arg3, arg4, PorE) is the attack program. P=0, E=1. I will also have AttackSelf and HealOther for actions. I have decided to add an arg4 for an animation and am planning to store the animations in a program.

Edit: More stuff.
dmain: Main save list
dquest: Quests
dqitems: Quest Items
dcons: Consumables
dhats: Hats
drobes: Robes
dwpns: Weapons
dspells: Spells
deqp: Equipped
Also, each item has an id specific to its type and also a global one (0-999: quest items, 1000-1999: consumables, 2000-2999: hats, 3000-3999: robes, 4000-4999: weapons).

And what do you do with that drinking horn? Put beer in it?

2

Yes, I am aware of how lists work on the TI-89. That's why I'll use strings for the maps. Also, the lists I am using will probably be small.

Does anyone have an animated GIF of this glitch?

1.
"."+Str1"+".→Str1
Repeat 2≥abs(Ans-3
getKey-10
End
sub(sub(Str1,1,Ans)+"1"+sub(Str,Ans+2,6-Ans),2,5→Str1

2. If it's a small delay, then rand(#) is better.

Now that I've created a few TI-89 Basic programs, I really want to write an RPG. This is a plan for one I might write.

The character will navigate through 8x16 tilemaps, which will be stored in a list of strings (one string per 5x5? map world). A quick calculation shows 128 characters per map*25 maps/world=3,200 characters. Therefore I will probably be writing the strings on an editor. Another method is to use multiple archived strings named, perhaps, map0, map1, etc. A space would be a spot you could walk on, L a wall, and 0-9 and perhaps a few more characters symbols for people. Greek characters might be quest items.

Now, quests. Each quest will have an ID from 0 to n-1. The types for each objective will be fight, fight and collect, collect, and talk. Each quest has one or more objectives (ex. fighting 3 of one enemy, 5 of another, and coming back to an NPC).
Fight: {enemy id, number, 0}
Fight and Collect: {enemy id, number, probability}
Collect: {item id, 0, 0}
Talk: {person id, response, 0}
Each NPC has a unique ID; I am thinking about storing their positions in a list, where every 5 entries look like {world, global row, global col, local row, local col} where the "global" coordinates describe which map in the world it is and the "local" coordinates describe where in the tilemap the person is. I could compress it to {world, map#, localcoords} or {25*world+map#, localcoords} or even {128*(25*world+map#)+localcoords}. For speed, however, I would use {w,m#,lc}.
The fighting system will not involve "cards" as in Sunrise 3. There will be a screen showing ASCII representations of the player and the enemy and a custom menu asking for an action (Fight, Magic, Item, Pass, Run). Each enemy has an ID as well, as well as a list associated with it, containing the enemy data (health, mana, lvl, can fight, can magic, can item, can pass, can run, stun rds, poison, xp reward, gold reward, # of spells, spell 1, ...). "Fight," as well as each magic will have a list consisting of action, arguments, action, arguments, etc. Some actions will be Attack(type, min, max), Heal(min, max, 0), MHeal(min, max, 0), ModUserAtk(fact, 0, 0), ModEnemyAtk(fact, 0, 0), ModUserDef(fact, 0, 0), ModEnemyDef(fact, 0, 0), Poison(amt, 0, 0), Stun(turns, 0, 0). Both players and enemies can use the same spells and there will be different programs for players to cast spells and for enemies to cast spells.
Shops will have a commond program available that will work with all shops, taking a list argument. Since For() loops are disallowed in ToolBar...EndTBar statements, I would be using a custom menu with up to 8 options, not including the one to return.

I'd like your feedback on this plan, thanks in advance!

On 2.55MP, if you take a fraction and multiply by another fraction, the home screen glitches and starts writing from the middle instead of the top of the screen. Only way I know how to fix is ram reset

I don't see the glitch on WabbitEmu.