Search found 17 matches

by Bellum
Tue Jun 14, 2011 1:13 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Thanks, all. That clears up a lot. :)
by Bellum
Mon Jun 13, 2011 10:05 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

a subroutine would offer little (if any) gain of ROM space and would be much slower.
Are JMP statements particularly slow?
by Bellum
Mon Jun 13, 2011 9:42 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Woo, it worked! Sort of. The second time it looped infinitely for some reason and started storing garbage, so I'll have to work that out. :) or should I be using jumping to a "subroutine" instead? In my opinion it makes more sense to have a subroutine that writes strings rather than a macro, but bot...
by Bellum
Mon Jun 13, 2011 9:17 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Thanks, that assembled. Now to see if it actually does anything remotely similar to what I think it's supposed to do. :lol:
by Bellum
Mon Jun 13, 2011 9:11 pm
Forum: NESemdev
Topic: Questions about licences and open source
Replies: 3
Views: 3689

I preferred the BSD license over GNU, but now I think I have a new favorite. :lol:
by Bellum
Mon Jun 13, 2011 8:36 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Coming back to this (I've got a few other projects sucking up big chunks of my time), I think I've come up with something very slightly less terrible. :P Labels are constants? (like #define?) It makes sense, but for some reason it hadn't occurred to me before. I keep wanting to translate this into s...
by Bellum
Wed Jun 08, 2011 10:24 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Yeah, those are just some meaningless addresses just so I have someplace to put things.

EDIT:
Actually, the first one isn't even used anymore. :P
by Bellum
Wed Jun 08, 2011 10:08 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Thanks, Grumskiz. I've read the first few NN tutorials so far and they seem helpful. :) Can I get you guys to look at this example for looping through strings? *= $1000 stLength = $2000 ;Pointer to $2000 for length of stStore string argument initString = $F000 ;Pointer to beginning of Strings curStr...
by Bellum
Wed Jun 08, 2011 11:08 am
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

http://home.pacbell.net/michal_k/6502.html Also downloaded the samples last night, which I somehow missed before. I understand how they make use of the terminal. Kinda. Sorta. If I'm looking at the examples for reference. :P EDIT: Ok, so is .segment a location in memory designated for specific tasks...
by Bellum
Wed Jun 08, 2011 9:06 am
Forum: NESdev
Topic: Universal Makefile for CC65
Replies: 13
Views: 7751

Cygwin works if you just need a bash shell in windows, btw.

Actually, though, I think mkdir is an alias for new-item in powershell if you have win7. And you can run cygwin in powershell! Sorry, just dig the blue screen. :P
by Bellum
Wed Jun 08, 2011 8:52 am
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Hmm, not sure what segment does at all, actually. :P I understand what say_hello does, but I don't understand why you store the numbers $21 and $CA in memory. I think I'm pretty clear on how the main loop works, wooo! So, for instance, I could say... astring .byt "This is a string!" LDA astring,0 ;l...
by Bellum
Wed Jun 08, 2011 8:08 am
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

tepples wrote:

Code: Select all

  .byt "Hello World"
Can you loop through this somehow to store each character in memory? I think I've got the looping syntax down ok, but I can't store a string into a,x,y (Is there a practical difference between these?) if it's larger than one character.
by Bellum
Tue Jun 07, 2011 7:56 pm
Forum: NES Hardware and Flash Equipment
Topic: This is NOT the official ROM Laboratory forum
Replies: 9
Views: 12884

qbradq wrote:Holy cow, that site is like stepping back into 1994! Freakin' everything is an animated GIF, even the backgrounds!
Party in the front and the back. :P

No, srsly, I loved it but some things from the 90s need to stay in the 90s. :|
by Bellum
Tue Jun 07, 2011 7:46 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Thanks for the tip! Is FCEUX more accurate than Nestopia, I wonder? I wont be able to test anything I write on a real NES anyway; haven't had one for a looong time. I think it's broken by now, anyway. The machines, alas, are not as indestructible as the SNES. Especially when forced to deal with kids...
by Bellum
Tue Jun 07, 2011 6:26 pm
Forum: NESdev
Topic: Obligatory newbie questions
Replies: 38
Views: 9501

Re: Obligatory newbie questions

Right now, I'm basically stuck using the 6502 simulator writing very simple programs that don't do anything but store and add numbers at some arbitrary address. That's after several days. I figure by now it's time to ask for some help. :P That's the best way to start IMO, and I suggest you continue...