Author Topic: XXEdit  (Read 8940 times)

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Offline squidgetx

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XXEdit
« on: January 22, 2011, 12:00:34 pm »
Another development tool I made to help myself figure out bugs with Ash: Phoenix...It's a memory viewer! Allows you to look at every address (0000 through FFFF) of your calculator's RAM and their contents. (Like Calcsys' hex editor, but more Axe user friendly)

Controls:
Arrow keys; move cursor around
1-6: Jump to memory locations L1-L6
XT0N: Jump to variables A through theta
/:Jump backwards by $1000 (4096)
*:Jump forwards by $1000
-:jump backwards by $100 (256)
+:jump forwards by $100
GRAPH: Goto 2 byte memory address pointed to by the current selection
Clear: quit

The cursor highlights the value of the byte you are looking at in hex and in ASCII (like calcsys)
In the upper left hand corner the 8x8 sprite starting at your cursor position is displayed
In the lower left hand corner the memory address your cursor is at is displayed in 3 different formats: hex, decimal, and the form Ln+(something) (displays the variable you are looking at if you are looking at variables)
In the bottom part of the screen there are two numbers: the value of the byte in decimal, and the value of the two-byte number little-endian (aka normal) starting at your cursor position.

Run with Asm(). Post comments/feedback/possible feature requests  ;D
« Last Edit: February 06, 2011, 03:05:09 pm by squidgetx »

Offline Michael_Lee

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Re: Axe Memory Mapper
« Reply #1 on: January 22, 2011, 12:03:42 pm »
This program is so incredibly win that I'm going to download it, even though I don't actually need it at the moment.

Note: Does the Mapper program use L1-L6 or any of the variables?
Because I keep seeing the string 'Mapper' in L1...
« Last Edit: January 22, 2011, 12:10:48 pm by Michael_Lee »
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Offline Binder News

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Re: Axe Memory Mapper
« Reply #2 on: January 22, 2011, 12:10:06 pm »
Seriously! I made something like this a while ago, but it just displayed the associated characters, all in a row. Nothing useful, just fun.
But still, awesome, will download
« Last Edit: January 22, 2011, 12:10:26 pm by Binder News »
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Offline kindermoumoute

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Re: Axe Memory Mapper
« Reply #3 on: January 22, 2011, 12:11:30 pm »
Woa, a dangerous program ! :D
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Offline squidgetx

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Re: Axe Memory Mapper
« Reply #4 on: January 22, 2011, 12:16:17 pm »
This program is so incredibly win that I'm going to download it, even though I don't actually need it at the moment.

Note: Does the Mapper program use L1-L6 or any of the variables?
Because I keep seeing the string 'Mapper' in L1...
Thanks. Besides L6 (the screen buffer), the mapping program doesn't use any of the saferam areas L1-L5. I don't know why "MAPPER" would appear in L1...unless it got written there from the transfer? It also uses variables, but before it's run it copies all the variables to $8000 (which is what you are really looking at when you hit XT0N) and when you exit it copies them all back. So no, it doesn't use any variables ;)

Offline Happybobjr

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Re: Axe Memory Mapper
« Reply #5 on: January 22, 2011, 12:17:43 pm »
What use would this be?   (Happybobjr has no experience with these things)
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Offline Michael_Lee

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Re: Axe Memory Mapper
« Reply #6 on: January 22, 2011, 12:20:18 pm »
Hmm, I think it was DoorsCS - I tried running another program in archive using Doors then your program unarchived normally, and I saw the string for the other program's name instead of Mapper.

edit: If I'm writing data to L1, and I'm not sure if what I'm sticking in there was what I intended, then I could use this to check it out.
« Last Edit: January 22, 2011, 12:21:45 pm by Michael_Lee »
My website: Currently boring.

Projects:
Axe Interpreter
   > Core: Done
   > Memory: Need write code to add constants.
   > Graphics: Rewritten.  Needs to integrate sprites with constants.
   > IO: GetKey done.  Need to add mostly homescreen IO stuff.
Croquette:
   > Stomping bugs
   > Internet version: On hold until I can make my website less boring/broken.

Offline Deep Toaster

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Re: Axe Memory Mapper
« Reply #7 on: January 22, 2011, 01:59:47 pm »
Awesome! I needed that. And a feature suggestion: search?




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Re: Axe Memory Mapper
« Reply #8 on: January 22, 2011, 02:05:00 pm »
Very nice!  I made something very similar a while ago, but never released it.  I need to make something similar to include in my Debugger suite, if I ever finish it.

Offline Deep Toaster

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Re: Axe Memory Mapper
« Reply #9 on: January 22, 2011, 02:15:26 pm »
Oh, yeah, and suggestion: memory bank switching is really important for a mem viewer.
« Last Edit: January 22, 2011, 02:16:06 pm by Deep Thought »




Offline squidgetx

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Re: Axe Memory Mapper
« Reply #10 on: January 22, 2011, 04:33:55 pm »
What kind of search function? Input a number, return all locations of said number? Also, what are mem banks (lol)

Offline yunhua98

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Re: Axe Memory Mapper
« Reply #11 on: January 22, 2011, 04:40:39 pm »
I'm really gonna need this to figure map bugs lol.  Very nice!

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Offline Builderboy

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Re: Axe Memory Mapper
« Reply #12 on: January 22, 2011, 04:48:41 pm »
Maybe where you can search for a string of numbers?

Offline Deep Toaster

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Re: Axe Memory Mapper
« Reply #13 on: January 23, 2011, 12:35:25 pm »
What kind of search function? Input a number, return all locations of said number? Also, what are mem banks (lol)


A string of hex, maybe? It gets really useful for recovering data :D

As for mem banks, it's like this: The addresses you use for memory go from $0000 to $FFFF. $8000 and above are used for RAM (hence 32768 bytes of ram on a TI-83 Plus). $0000 to $3FFF are used for OS page 0. $4000 through $7FFF are used for the entire archive. Obviously, 16384 pointers can't point to each byte in the entire flash memory, so the calc uses a port (or two) for mem bank switching.

Basically, at any given point the data from $4000 to $7FFF point to one flash page. This could be almost any flash page in memory, but the point (no pun intended) is that while it's pointing to that page, you can read from that page only. If you want to switch to a different flash page, you send that byte to port 6. Then the data from $4000 to $7FFF would represent that page.

https://docs.google.com/viewer?url=http://education.ti.com/calculators/downloads/US/Software/Download/en/6142/6584/sdk83pguide.pdf for more info.
« Last Edit: January 23, 2011, 12:35:49 pm by Deep Thought »




Offline squidgetx

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Re: Axe Memory Mapper
« Reply #14 on: January 23, 2011, 02:00:54 pm »
Thanks for the explanation. [friendlysarcasm]I like how you pointed to the massive 188 page SDK for "more info" lol [/fs]

Ok, so here are the features I am planning to add (was going to add them last night but then I got tired :P)
-mem bank switching (thanks dthought)
-search for a program/appvar
-search for a hex string up to 8 bytes long
-search for a character string. supports A-Z, a-z, theta, and 0-9
-binary display of byte you are currently viewing

thanks to calcdude and graphmastur for providing the asm code for mem bank switching: if anyone wants them, here they are: Asm(DB066F)^256 gives you the current page, and Page#Asm(7DD306) switches the page to page Page#
« Last Edit: January 23, 2011, 04:04:53 pm by squidgetx »