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Messages - ralphdspam

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61
TI Z80 / Re: ASMDREAM - the TI-8X+ on-calc assembler
« on: January 06, 2012, 01:17:39 am »
What you mean ?
Adding some shell routines into the app ?
I mean allowing a different program to pass a source to your assembler.  If someone made a code editor, they would be able to place the program name in ram and call a routine in your app to compile it.

62
TI Z80 / Re: ASMDREAM - the TI-8X+ on-calc assembler
« on: January 05, 2012, 05:57:31 pm »
Do you have, or are you planning to make any entry points from other programs?

63
TI Z80 / Re: Z80 calculators CAS project
« on: January 05, 2012, 05:53:51 pm »
I don't think we'll want to crack the software.  (That would give us a bad reputation.)  You can check ticalc.org for math apps, and you can try those out. 


64
Gaming Discussion / Re: Mario Kart 7 Omnimaga Community
« on: January 04, 2012, 05:42:51 pm »
I've played all Mario Karts so far.  I like the ds versions because you can just play with your friends wherever you are.  I was disappointed that the 3DS game had no missions or single player vs, though.  It felt really short compared to the DS game.

65
ASM / Re: ASM Command of the Week
« on: December 29, 2011, 02:57:40 am »
Possibly one of the best uses of XOR is in combination with AND, to act as a bitwise multiplexer.

For example, this uses the bits of C to select bits from A and B: if the bit in C is 1, that bit is selected from A, and if the bit in C is 0, that bit is selected from B.
xor b
and c
xor b

What could you/would you want to use this for?
You can use it for a lot of graphics stuff.  ie: masking sprites, grayscale, etc.
I also use it for preserving certain flags in a register while changing others.

66
Also we need to be careful about releasing tools that allows a CAS to run on a non-CAS, because if it looks too easy for the average calc user, this could cause problems with TI.
Maybe add it as a hidden feature of a program?

67
TI Z80 / Re: Play it safe with the Ti-83+/Ti-84+ Screen
« on: December 29, 2011, 02:19:16 am »
I believe this is what happen with Axe when using grayscale in 15 MHz mode, right?
Yes, you're correct. 
I've also had problems with Chips Challenge with the screen constantly scrolling.  I had to find another program that adds even more delay for 15 MHz mode.  :P

68
TI Z80 / Re: ASMComp
« on: December 29, 2011, 02:13:33 am »
It looks really nice, but the hex kinda scares me.  D:

69
Gaming Discussion / Re: Mario Kart 7 Omnimaga Community
« on: December 28, 2011, 11:14:34 pm »
The game is good, but the online connection is horrible (constant connection errors and timeouts). Otherwise I might try joining.
I haven't had many problems with the online multiplayer, but I've heard a few complaints.  I guess it requires fast Internet or something.

70
TI Z80 / Re: Play it safe with the Ti-83+/Ti-84+ Screen
« on: December 28, 2011, 10:55:57 pm »
That doesn't work on Ti-83+ BE calculators.
Wait...
So now they're making 83+ BE calcs but with worse screen drivers?  Wow...

Hmm, how does alcdfix work? And I know Donkey Kong did not work for my TI-84+, but worked fine for the TI-84+SE (even after I used alcdfix).
There are a couple of ports in the SE hardware that control the amount of clocks the graphics driver stops the CPU.   ($29 - $2F)   Alcdfix changes the values in these ports (I'm not sure which ones) so there is enough delay for the driver to catch up.

71
TI Z80 / Re: Play it safe with the Ti-83+/Ti-84+ Screen
« on: December 28, 2011, 10:33:23 pm »
Doesn't alcdfix fix this problem by adding delay to port access to the screen, or is there a new problem?

72
Gaming Discussion / Re: Mario Kart 7 Omnimaga Community
« on: December 28, 2011, 09:15:27 pm »
Ooh, I just got a 3DS and the game is great!  I wonder how active the community will be.

73
ASM / Re: Boot Code Transfer to OS
« on: December 25, 2011, 01:47:53 am »
  • The boot code starts on page 7F at 4000, not 0000 on page 00 of the OS. (Technically the boot code starts on page 7F at 0000, but I'm not going into that)
I noticed the way the code switches out the pages and jumps up to the $4000 bank.  It seemed useless at first, but it's actually kind of clever.
Quote
  • A lot of the useless code you saw was so people can't trick the boot code into unlocking flash for them. When we unlock flash, we have to trick those things into returning to our control with flash unlocked
  • And as much as you'd like to think otherwise, TI's code is actually pretty well written :)
Yeah, maybe I'm just nitpicking.  :P

74
ASM / ASM Command of the Week
« on: December 24, 2011, 12:27:13 am »
The ASM board hasn't been as active as it should be, so I'm starting a weekly discussion called "ASM Command of the Week."  Basically, we will discuss hacks, routines, optimizations, or alternatives to the command.  

It's basically going to be like these topics, except this one is going to be weekly.
DJNZ:
http://ourl.ca/13569
RLD and RRD:
http://ourl.ca/12758
IX and IY:
http://ourl.ca/12633

We'll start with a really easy one.  This week's command is:
XOR

75
News / Re: nRGBlib for the TI-Nspire CX
« on: December 24, 2011, 12:14:41 am »
Wow!  Fancy!
I can't wait to see all of the games that are developed by this.  :)

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