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Messages - ralphdspam

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76
ASM / Re: Boot Code Transfer to OS
« on: December 23, 2011, 11:59:18 pm »
1. sets up all of the calculator hardware through ports (port (07) gets 80h except for an OS installation where it gets 00h).
2. checks for Stat and Del and does its usual if they are pressed
3. checks (0038h) to make sure it's not FFh
4. checks (0056h) to make sure it's A55Ah, (5Ah, A5h in memory)
5. jumps to 0053h

Also, if you are going to send your own OS, (0056h) should be $A5FF when sending. Something gets angry if it's not, but I don't remember what it is.
Thanks!  I'll try that.  :)

Ok, so I took a look at the code and made some notes.  I only got so far until I got incredibly annoyed at the code.  :P
Spoiler For Spoiler:
0002 Check if calc is 83+BE  (I have an 84+SE.)
029A Set up hardware timers and memory banking.
8130 waste time...
813D waste moar time...
814C Set up hardware timers
4151 MUST WASTE ALL THE TIME!!!!!
4165 Unlock flash
4173 Abuses SP in a very weird way (???)
4193 The coding on this is so bad... Please put me out of this misery!
60E1 Set up link port
41D3 Set up LCD
4204 Set up flash and ram execution limits
421A What are port $39 and $4A?
4225 No comment about the programming... x.x
628F AARRGGH!!! You used CPL before!!! DX
423D Check for keypresses (Such as DEL)
4248 Check if 00:0053 is $A55A
FFFF FFUUUU Ok, I give up on this.  The coding on this is the worst I've ever seen... Since worse TI stuff.  uugghh...

77
ASM / Boot Code Transfer to OS
« on: December 23, 2011, 04:23:13 pm »
How does boot code give control to the OS?  Where does it jump to?  Are there any integrity checks?  If so, what are they?

78
Whoa! Canada has a queen?
The Queen of England.  She doesn't really have much power.

79
TI Z80 / Re: Ways To Spice up a Snake Game
« on: December 17, 2011, 10:06:23 pm »
Hmm just so you know, this topic is located in the Z80 projects sub-forum, which means color is out of the question. (There are no z80 based calcs featuring a color screen)
Yeah, I was planning to make this game in ASM, but I'm not sure if I will ever get to this.  I'm currently working on bigger, better, unannounced projects now.

80
News / Re: nDoom for the CX at the horizon
« on: December 14, 2011, 08:01:06 pm »
Awesome!

81
TI Z80 / Re: GlassOS
« on: December 14, 2011, 12:00:11 am »
programs with open file handles for reading, etc.. 
That's true.  I guess you have to copy the file to ram in order to be read and call the OS to save it again.
But you're probably already doing that.

82
TI Z80 / Re: GlassOS
« on: December 13, 2011, 10:07:47 pm »
I think it should be 1 by default.  The flash memory layout should be transparent to the average user. 
Maybe 2 can be selected under advanced options or something like that.

I personally think option 3 would be annoying. 

83
Other Calculators / Re: Interesting TI-84+ Screen Behavior
« on: December 13, 2011, 02:19:27 am »

I'll edit the video once it's fully processed by Youtube.

84
Other Calculators / Re: Interesting TI-84+ Screen Behavior
« on: December 13, 2011, 01:38:29 am »
Would you care to send an executable or a source for us to look at?
(I've already BSOD'd my calculator, so there's nothing worse you can do. :P)

85
Other Calculators / Re: Interesting TI-84+ Screen Behavior
« on: December 13, 2011, 01:28:13 am »
That looks really neat!  How is it possible that the left is so perfectly gray? 

What's the temperature of your room?

86
TI-Nspire / Re: ndless ideas
« on: December 13, 2011, 01:21:37 am »
C64 is old enough to manage that fact probably.
How about one of the Ataris, those seem pretty simple at a glance.
(tho the 2600 is supposedly hard to emulate b/c of hardware glitches etc...)

The NES, the C64, and the 2600 use similar processors, so it wouldn't be all too processor-intensive to emulate those.  As far as the Atari 2600 TIA chip, most games should work fine without the undocumented functions.  There are just a few graphically advanced games and homebrew rickrollers that use those functions.

87
News / Re: New FX-9860GII models breaks compatibility with many add-ins
« on: December 13, 2011, 12:50:45 am »
Well, I personally wonder why they didn't work on such Prizm instead of an old calc redesign that will be a nuisance for a bunch of people?
They're probably working on said Prizm.  I suspect that this was a cost cutting measure to use similar boards for different lines of calculators.  [/just a guess]

88
News / Re: TI-Nspire CX emulator at the horizon & Ndless 3.1 reboot-proof
« on: December 13, 2011, 12:36:56 am »
Well... it seems Ndless 3.1 fixes that problem, which is good news, because apparently installing Ndless 3.1 requires a computer too, not to mention having to reinstall Ndless after every reboot sometimes became annoying.
Wow, that sounds a lot like the way some iOS jailbreaks had to be tethered.  It's ridiculous how they try to lock these things down...

89
News / Re: New FX-9860GII models breaks compatibility with many add-ins
« on: December 13, 2011, 12:29:58 am »
At least they warned; that counts for something...

On a different note, I wonder when the Prizm will get SDHC support.

90
TI Z80 / Re: [discontinued] polygon-based 3D engine (with textures)
« on: December 11, 2011, 04:33:17 pm »
Aww, too bad.  I'm very impressed in the progress, though.

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