Search found 177 matches

by albailey
Thu Sep 06, 2007 5:43 pm
Forum: NES Hardware and Flash Equipment
Topic: Wherein I fail to make a NES disc Changer
Replies: 73
Views: 18849

You can get 72 pin connectors from MCM Electronics (but they seem expensive, and I dont think can be attached properly to a regular PCB. There's the 72 pin connector on this page http://www.lizardlickamusements.com/pages/electrical.shtml But I have no idea if it fits properly, etc.. Someone would ne...
by albailey
Thu Aug 30, 2007 9:28 am
Forum: NESemdev
Topic: About color indexes..
Replies: 21
Views: 9082

So is there no way to ask the NES where the PPU address is? Not that I'm aware of. Do you need to "save state" from within the emulated NES? No. Sorry, I know this is an emulator related thread, so my question side-tracked things, since its NES game programming related. I used to mess up ...
by albailey
Thu Aug 30, 2007 7:03 am
Forum: NESemdev
Topic: About color indexes..
Replies: 21
Views: 9082

OK, that makes sense to me. I thought this might have been some sort of "interesting" side effect.

So is there no way to ask the NES where the PPU address is?
Al
by albailey
Wed Aug 29, 2007 8:04 pm
Forum: NESemdev
Topic: About color indexes..
Replies: 21
Views: 9082

I hope I'm not missing the point (too much), but does this mean I can use something like this to query the current PPU address? Lets say the PPU is at the beginnng of a nametable like $2400. Can I determine that by reading $2007 4 times, and using the 3rd and 4th read as the address. My question is ...
by albailey
Thu Aug 16, 2007 9:53 am
Forum: Reproduction
Topic: taking off labels, fading nes cart
Replies: 12
Views: 5990

Napha is not paint thinner, it is camp stove fuel. Fairly cheap (check the camping area at Wal Mart) , evaporates cleanly away (which is why you close the lid on the ice cream tub) and if you leave it for an hour (probably a lot less) you can peel the label off fairly cleanly, usually in one pull. I...
by albailey
Thu Aug 16, 2007 6:57 am
Forum: NESdev
Topic: The impact of palette color 0x0D
Replies: 8
Views: 4096

I think 0F is good. Its what I changed mine to and my problems went away. if anyone else has opinions, let me know.

Al
by albailey
Wed Aug 15, 2007 8:18 pm
Forum: NESdev
Topic: The impact of palette color 0x0D
Replies: 8
Views: 4096

I was able to see the problem on my LCD TV. By changing my palette from 0x0D to 0x0F, the problem went away. It was pretty freaky.

Al
by albailey
Wed Aug 15, 2007 7:38 am
Forum: Reproduction
Topic: taking off labels, fading nes cart
Replies: 12
Views: 5990

I use naptha. I've left them in a sealed ice cream bucket with some naptha at the bottom overnight and came back the next morning and had no problems or side effects.

I think its the fumes that lift the labels (you dont have to completely submerse them if you are doing several at once)

Al
by albailey
Wed Aug 15, 2007 7:23 am
Forum: NESdev
Topic: The impact of palette color 0x0D
Replies: 8
Views: 4096

The impact of palette color 0x0D

Palette color 0x0D is called blacker than black. I was using it as my background color. Which was a mistake at least when playing on a real system depending on the TV. What are the consequences of doing this on a real system? Are there any other colors that are "wrong" to use? On a TV that...
by albailey
Mon Aug 13, 2007 11:04 am
Forum: Newbie Help Center
Topic: Question about tracking down bugs
Replies: 6
Views: 2333

OK, makes sense. The scrolling is just to transition from the title screen to the main screen so I dont mind the brief screen turn off. I'm actually in my NMI when I turn display off (which turns off further NMI calls), I just wasnt waiting for another vblank after writing all that data. Thanks for ...
by albailey
Mon Aug 13, 2007 10:32 am
Forum: Newbie Help Center
Topic: Question about tracking down bugs
Replies: 6
Views: 2333

I think thats at least one of my problems. I was just turning display back on without doing the wait for vblank :lda $2002 bpl :- Without this, the screen appeared to flicker (although the flicker went away). Maybe the behaviour varies depending on when I turn it on, and can last more than one frame...
by albailey
Mon Aug 13, 2007 10:12 am
Forum: Newbie Help Center
Topic: Question about tracking down bugs
Replies: 6
Views: 2333

So far I've been testing using a dev cart made from an NROM donor, as well as using emulators. I didnt use PowerPak because I wanted to eliminate that as a factor (I don have the resisterized version yet) I believe my problem/situation is this: The screen is currently displaying name table 2000 I wi...
by albailey
Mon Aug 13, 2007 7:49 am
Forum: NESdev
Topic: Finished my game (Sudoku) (added link to the rom)
Replies: 11
Views: 5725

Thanks.

There might be a bug in it. Some people are reporting they are seeing weirdness. I dont see it on my emulators or real systems. If you do decide to get one, maybe wait until I figure out what the bug is.

Al
by albailey
Mon Aug 13, 2007 7:35 am
Forum: Newbie Help Center
Topic: Question about tracking down bugs
Replies: 6
Views: 2333

Question about tracking down bugs

I've got a gme that works fine on my NTSC NES units, fine in emulators like Nintendulator and FCEU, but on some people's NTSC NES systems they see weird PPU problems. I've tried walking it line by line and I dont see anything glaring. And since I dont have a system to reproduce these problems, its d...
by albailey
Wed Jul 04, 2007 7:18 am
Forum: NES Hardware and Flash Equipment
Topic: Has anyone got their resistorfixed PowerPak..
Replies: 44
Views: 15054

He is away on vacation until tomorrow.
Al