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Messages - DrDnar
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46
« on: April 02, 2014, 06:04:35 pm »
Bug!
No BUG CHECK is triggered by this, but it's game-breaking. I didn't get the update yet, but since it doesn't look like it's in the changelog, I'm reporting it anyways.
Instructions: Start a FreeCell game and make a ladder extending past the bottom of the screen. The calc freezes at a green (or green with yellow lines) screen.
That has been fixed. I posted a release in which the code for dealing with that situation hadn't been implemented, so a bunch of routines just produce garbage. When the LCD gets garbage, it likes to freeze, as though it's Windows ME. I believe it's not a true freeze. You need to press ON, press CLEAR a couple times, then press 2nd+ON to turn the calculator off. It should turn off, and the screen should reinitialize when you turn it on. Incidentally, if you really enjoy FreeCell that much, don't use the supermove feature in the most recent release. If you move to a pile with more than ten or so cards, it will cause corruption. (You can often, but not always, fix the corruption by pressing MODE to save and quit, and then restarting.)
47
« on: April 01, 2014, 07:37:08 pm »
I've uploaded a non-April-Fool's update. Yes, despite the date, this release contains no jokes (aside from the Vegas line that's been in the readme this whole time). This release adds the useful supermove feature to FreeCell, fixes some bugs, and adds minor enhancements. This also breaks compatibility with the old save appvar format, so you'll have to delete your save appvar. You may find the app download here, and source code here. - Fixed bug where selecting AGAIN after winning a game would prevent game saving from working in the new game. - Minor changes to the modal dialog routine - Fixed a bug where, after resuming game, the timer would not restart correctly. - Added some comments in various places in the code - Changed variables, so save compatibility is lost - GUI cursor now blinks - Fixed the YOU WIN dialog having a different score than the score under the KLONDIKE text. (The YOU WIN score was always the correct one.) - Fixed a bug in FreeCell that would allow selection of an empty stack! This would generally cause a panic on any attempt to move the un-card. - Made the free RAM required for game saving substantially smaller. - Fixed a bug in clean-up termination code that could cause a crash in CLASSIC - Implemented FreeCell supermove
48
« on: April 01, 2014, 05:56:17 am »
When can defines be used and such?
I'm not sure what you mean by this. You can define anything you want, and you chain defines. (That is, make one define based on another.) Also, I've found some bugs while using the (IX) register, I have to do (IX+0) and such instead of just (IX)
It's a well-known issue. Just deal with it.
49
« on: March 30, 2014, 04:25:50 am »
i've got just the program you need
it's a great program for calculus 
you need to send the app and the pics and symbolic and omnicalc and prettyprint
That's a bit of a necropost, but not egregiously so. Is it possible? I have 3D Graphing down, but mainly it's CAS which is an issue
Currently, I have the ZoomMath system as the premier system to use, but the full one costs money.
There also is Symbolic, but lately I find it limiting. So is there any good alternatives to the TI 89 in terms of CAS, and is it possible to program one? are they working on it? Please answer i dont want to be alone 
You can literally put a TI-89 T in a TI-84 Plus, or so I'm told. It's called case swapping: You remove the TI-89 T's electronics and put them in a TI-84 Plus/SE. Obviously you need an actual TI-89 T to do this. That being said, it's cheating to do so. Teachers specify that students should use a TI-83/84 instead of TI-89s for a reason. You're less likely to learn what you're supposed to if you have a CAS.
50
« on: March 27, 2014, 10:13:47 pm »
The game is nearing completion! I've added FreeCell, and I've added game saving. Now you can stop the game you're playing, and resume it at a later time. There are now two pending features: undo/redo, and adding some better graphics. I think I can do both in the remaining 2.3 K of space, and I can increase that to 2.8 K if needed by moving the IVT and ISR into RAM. You may find the app download here, and source code here. Here are some new screen shots: Main menu 1:  Main menu 2:  Klondike Solitaire:  FreeCell:  Game saving in action:  Full readme:
Solitaire
March 27 2014
====== Introduction ============================================================
Since Windows 3.0, Windows has included two electronic versions of two
Solitaire (or Patience in UK English) type card games. Windows called them
Solitaire and FreeCell. This app currently implements a clone of both programs.
For the precise rules of Klondike and FreeCell, please consult the Internet.
====== Usage ===================================================================
MAIN MENU
Solitaire has a main menu which lets you select which game to play, and the
options applicable for the chosen game. The currently selected menu item is
displayed in inverted color; that is, white text on black background. The arrow
keys will select different items. Press ENTER or 2ND to select an item.
To quit, you must press the quit button at the bottom of the screen.
Unlike in the OS, Solitaire will not dim the screen after a period of no
activity. However, after three minutes, Solitaire will terminate itself and
turn the calculator off. If this happens while a game is in progress, Solitaire
will save your game if there is sufficient free RAM (about 400 bytes).
SAVING
Solitaire uses an appvar named Solitair to save your settings and
statistics. This appvar is about 100 bytes in size at a minimum, and is always
in RAM. If you archive the appvar, Solitaire will unarchive it, and will not
rearchive it.
Additionally, while you are playing a game, Solitaire can save your game and
restore it when you rerun the app. This function can be invoked explicitly by
pressing MODE. This will expand the save appvar to about 400 bytes. If you are
playing a game, and press no buttons for more than three minutes, Solitaire will
attempt to save your game, and then turn the calculator off.
There are some conditions that can prevent Solitaire's save feature from
working:
- An appvar named Solitair was created by another application. Solitaire
cannot use any other appvar name.
- There is not enough free RAM. If there is enough free RAM for the appvar to
save statistics, then they will be updated when you quit; however attempting
to use the save feature (either by pressing MODE or waiting three minutes)
will cause the app to update its statistics, but not save your game.
- There is not enough RAM to unarchive the appvar when it is archived. This
is exactly like above, but statistics won't be saved, either, and any saved
game cannot be resumed.
- The appvar was created by an older version of Solitaire, and the new version
cannot understand it.
In any of these circumstances, attempting to invoke the game saving feature---
either through pressing MODE or waiting three minutes---WILL NOT SAVE YOUR IN-
PROGRESS GAME.
If you repeatedly get error messages when starting Solitaire and you are
sure there are not, in fact, any problems, try deleting the appvar Solitair.
GENERAL GAME PLAY
Once you have started a game, use the arrow keys to move the cursor around.
Use ENTER or 2ND to select a card, move the cursor to another card, and then use
ENTER or 2ND again to place the card. Cards that are hidden may be revealed
with ENTER or 2ND.
If you do not a press any keys for three minutes, Solitaire will attempt to
save the in-progress game and then turn off the calculator, returning you to the
home screen; see above for more information.
BUG CHEKCS
Solitaire contains sanity checks in certain areas, in which the game
verifies that its internal data is in a valid state. If a sanity check fails,
it means that the app has a bug. Therefore, the game will display an error
message saying BUG CHECK, followed by some numbers. A BUG CHECK can also be
triggered by press ON at any time, which may be useful if the game appears to
have locked up. If you see a BUG CHECK and you did not cause it purposefully,
please record the numbers, and send them to me, with a thorough description of
what you were doing when the BUG CHECK was triggered. If at all possible, also
send an exact list of steps that cause the issue; you may also need to include
the appvar Solitair.
------ Klondike ----------------------------------------------------------------
Klondike is the name for the specific version of Solitaire Windows is known
for.
Unlike in Windows Solitaire, the four foundations that you must move cards
into is not on the top right. Instead, they are on the left side of the screen;
this is purely due to the low resolution of the TI-84 Plus C SE screen.
Y= will draw more cards from the deck. Alternatively, you may simply click
on the deck. Click on a hidden card to flip it.
There are two main scoring modes: normal and Vegas. In normal mode, the
score is always positive. 500 points is average for an un-timed game, 700-plus
is excellent.
Vegas scoring has two sub-modes: non-cumulative and cumulative. In Vegas
scoring, you only get one pass through the deck. When you start the game, you
start 52 currency units (e.g. US dollars) in debt, and earn back 5 units for
every card moved to a home cell (or foundation). With only pass through the
deck, your chances of winning are very small. In fact, even earning back more
than 52 units is very hard. In cumulative mode, you get to retain any debt (or
credit, however unlikely that may be) from previous hands. Switching back to
normal scoring will erase your debt. (Caution: May not work in real casions.)
Basically, in Vegas mode, you're almost certain to lose. That's why it's
called Vegas mode.
If you enable the timer, in normal scoring mode, you lose two points every
ten seconds. In Vegas mode, the timer serves no purpose.
------ FreeCell ----------------------------------------------------------------
FreeCell is a game similar to Klondike Solitaire. However, an important
difference is that all cards are visible when you start the game. Also, you get
four free cells that can be used as a temporary holding area for exactly one
card. Therefore, unlike Klondike, FreeCell is purely a logic/strategy game.
Unlike in Windows FreeCell, the four home cells and free cells are not on
the top of the screen. Instead, they are on the left side of the screen; this
is purely due to the low resolution of the TI-84 Plus C SE screen.
This implementation of FreeCell provides the same 32000 unique games that
the original Windows FreeCell contained, the so-call Microsoft 32000. Every
game except one is solvable with normal four free cells; the unsolvable game is
#11982, which can be solved with a fifth free cell. Dozens of people have
claimed to have solved all 32000; if you attempt to solve all of them before
graduating, you are unlikely to graduate. Numbers 1941 and 10692 are also
considered very hard, and 617 often trips up beginners, or so I'm told.
You can find solutions to all 31999 games online in various places; be
forewarned, however, that this implementation does not currently support the
supermove.
====== About ===================================================================
------ Credits -----------------------------------------------------------------
FloppusMaximus and BrandonW are responsible for nearly all of the OS
documentation that made this possible. KermM provided the vital insight of the
identity of the specific LCD driver the TI-84 Plus C SE uses, without which this
game could not operate at a reasonable speed.
Xeda helpfully provided some optimizations for some routines.
------ Change Log --------------------------------------------------------------
Build 461 (27 March 2014)
- Added Random! button to GUI
- Fixed glitch in Klondike where disabling the timer would also make the Draw
text disappear
- Added some basic statistics
- Optimized some code
- Added win detection logic
- Added dialogs
- Added FreeCell game mode
- Fixed a bug in Klondike where moving a card onto a foundation would leave the
card below the new top card still selected, so you could move the card onto
another pile
- Fixed points being deducted at the wrong time when turning over the waste
- Fixed points being deducted after waste is empty
- Added settings, stats, and game saving. Now APDs correctly save your gave (if
possible)!
- Made FreeCell number entry and free cell count entry a little better
- Changed a bunch of code relating to the card cursor positioning that I had been
putting off until I implemented FreeCell
Build 259 (19 March 2014)
- ALPHA now implements move-to-home-cell
- If you empty the waste, it shows the card beneath if one is there
- Deck graphic changes to empty box if no more cards are in deck
- Down key moves to bottom-most card in stack
- Changed how the arrow keys move between stacks
- All illegal moves should now also unselect the currently selected card
- So ALPHA will unselect the currently selected card
- HOPEFULLY fixed rare random freeze issue
- Implemented timer
- Implemented scoring
- APD now three minutes
- Every invocation of the build.bat file will now increment the build number,
so every version has a unique ID.
Initial release (12 March 2014)
- Basic functionalityDrDnar made games?? 
Anyway that looks pretty good so far and pretty old school too (for some reasons I am reminded a bit of Windows 3.1  )
What did you call Robot Finds Kitten? The old-school look is intentional.
51
« on: March 27, 2014, 02:57:56 am »
That said, now that you mention WikiTI, I guess that could be a nice alternative if people don't mind WikiTI drifting away from its ASM near-exclusivity, since originally WikiTI was created just for Z80 ASM.
I'm the only WikiTI admin that matters (I'm the only one you have a decent chance of contacting), and I don't mind. There's USB8X documentation on the Wiki, and there's even a BASIC section on the Wiki, although it's pretty poor.
52
« on: March 23, 2014, 03:33:02 am »
Just bought a used TI-84 Plus Silver Edition today. . . . The calculator is now showing:
ARC FREE: 561062
Are you sure it's a TI-84 Plus SE and not a TI-84 Plus, non-SE? If you are, use the Reset All Memory option. It's not the same as resetting RAM and archive separately. You could totally port this to the color if you think up a good screen updating algorithm. Even at 320x240, each frame probably only needs a few hundred pixels updated.
53
« on: March 19, 2014, 06:55:27 am »
This week's update finishes the Klondike Solitaire feature, by adding the following features: - ALPHA now implements move-to-home-cell - If you empty the waste, it shows the card beneath if one is there - Deck graphic changes to empty box if no more cards are in deck - Down key moves to bottom-most card in stack - Changed how the arrow keys move between stacks - All illegal moves should now also unselect the currently selected card (So ALPHA will unselect the currently selected card.) - HOPEFULLY fixed rare random freeze issue - Implemented timer - Implemented scoring - APD now three minutes - Every invocation of the build.bat file will now increment the build number, so every version has a unique ID. You may find the app download here, and source code here. I've added a routine call Panic that gets called in various places if the game fails a sanity check. If you see the panic screen, it doesn't necessarily mean the game has crashed. It just means that it's reporting a bug. Pressing ON will trigger a panic. If you see a panic unexpectedly, or need to use ON to terminate the app, please record the numbers it spews out and report them and what you were doing, including all options; the information will help me identify what happened. This release was delayed a lot by a rare issue I encountered with the game very rarely freezing. I may have fixed the issue by ensuring the game never enters a key processing loop with interrupts disabled. However, I'm not certain interrupts were the issue in the first place. Nevertheless, I also restructured interrupts so the IVT can't be corrupted (by moving it into the app) and I added sanity checks for the PC and SP into the ISR.
54
« on: March 13, 2014, 04:38:08 am »
As some of you are aware, for the past month, I've been working on a combination Solitaire game, containing both the popular Klondike kind found on most versions of Windows, as well as FreeCell. Today, I present a working beta. Title & options screen: Playing game: I've managed to win a game twice, including on hardware. However, there is still much work to do. There is no scoring code (though you can indeed switch between draw-1 and draw-3 modes), the FreeCell mode isn't implemented at all, there are no graphics for the high-ranking cards, the save feature isn't implemented, the undo feature isn't implemented, and there is no code to detect the win condition. If you find any bugs, you may report, but only if you can reproduce them. Which is difficult, considering that the RNG is not only implemented, but well-designed to prevent the same game from being generated twice. EDIT: You can find the latest version and good screen shots at ticalc.org .
55
« on: March 12, 2014, 04:28:21 pm »
. . . an OS glitch with flash page copying which would occasionally corrupt apps. . . . some apps would occasionally get corrupted when being moved during defragmentation.
I'm familiar with the BAD ADDRESS bug, but I've not heard of this one. So apparently, you get random corruption with both apps and the archive. What's the fix?
56
« on: March 12, 2014, 03:44:41 pm »
They didn't even open the case.
Two words: case swapping. (The TI-89T PCB fits in the TI-84+ case.)
57
« on: March 12, 2014, 01:12:23 am »
BrandonW concluded that all changes were TestGuard-related. Specifically, TI has added significant code to TestGuard to detect OS patches; apparently, we are not allowed to patch the OS. Sorry, thepenguin. Anyway, it will show an ominous error big (non-red, oddly) X with an error message saying that there's an error 42 and that you should contact TI for more information. Maybe they'll tell the teacher that the student is a big cheater and should be hanged at dawn. Or maybe they'll just say to resend the OS.
58
« on: February 10, 2014, 09:35:47 pm »
The I exploit I provided is just the one BrandonW initially gave me last spring; I didn't write it. It has the deficiency that it only works on boot code 4.0 (it depends on the exact placement of certain code), albeit with the upshot that never references any OS code. You should ask BrandonW (or perhaps thepenguin) for a better one.
59
« on: February 06, 2014, 11:30:14 pm »
Nice work, Buckeye.
I suggest checking if the issue with non-smooth scrolling is the result of a lack of V-sync support.
60
« on: December 15, 2013, 06:40:48 am »
I keep getting an Attachment not Found error
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