Search found 248 matches

by Bisqwit
Sat Jun 30, 2012 3:20 pm
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

You might have underdumped the PRG; the 74'161's outputs only makes sense to be connected to pin 22 of the ROM if it's actually A16. Yes, I also arrived to the same conclusion (from different observations), and in fact have now dumped also the second 64k portion. The second chip does have only 64k....
by Bisqwit
Sat Jun 30, 2012 11:47 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

I also purchased a desoldering pump. Figured it's something I would eventually need anyway. As a consequence, I was now able to successfully desolder both ROM chips from the cartridge. I was also able to dump them using my Arduino program. There was a slight problem in doing so: The legs of the ROM ...
by Bisqwit
Fri Jun 29, 2012 12:40 pm
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

Wow, I found my stash. I knew I should have more than that which I showed previously, but it was packed away from my last move in a location I had not bothered to unpack. (Back as a teenager, I used to salvage components from trashed electronics in hopes I could use them later in something. I also g...
by Bisqwit
Wed Jun 20, 2012 3:10 am
Forum: NESemdev
Topic: NTSC borders in emulators
Replies: 12
Views: 6088

On my NTDec PAL famiclone, it looks like it draws some 6-8 pixels of border (not exactly sure) on the left side and 0 pixels on the right side. I haven't analyzed yet whether any pixels of the 256x240 content are missing, but it does not look like they are.
by Bisqwit
Mon Jun 11, 2012 2:37 am
Forum: NESemdev
Topic: Multithreaded emu designs
Replies: 54
Views: 50063

Thread switching by yield() or similar mechanisms is considered harmful. http://www.altdevblogaday.com/2012/06/05/in-praise-of-idleness/ http://www.technovelty.org/code/c/sched_yield.html http://msmvps.com/blogs/peterritchie/archive/2007/04/26/thread-sleep-is-a-sign-of-a-poorly-designed-program.aspx...
by Bisqwit
Thu Jun 07, 2012 11:09 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

I don't think that "cheap one-time cartridge dumping" exists... It's not like you can quickly build a device to do it using common household items. If you're very electronics-savvy you can make an EPROM reader with few parts, but you have to know what you're doing or you'll just get frust...
by Bisqwit
Thu Jun 07, 2012 4:38 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

HardWareMan wrote:CaH4e3 used a long time Pasofami. Simple shematic, suitable for most cartridges. In addition, all software are ready.
What's a long time Pasofami?
by Bisqwit
Wed Jun 06, 2012 1:04 pm
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

http://www.fileden.com/files/2008/4/21/1876835/LPTexpander.jpg That is pretty much waht my EPROM dumper/burner is, except I got a PPI there for more control and 16bits support. So you're using the D0..7 lines in the LPT port as both input and output? Does that really work? Hmm... As I don't want to...
by Bisqwit
Wed Jun 06, 2012 12:38 pm
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

TmEE wrote:374 will do too, its pinout is less convenient though
That's great.
I have to admit though, I have no idea how that chip would be any helpful :-/
by Bisqwit
Wed Jun 06, 2012 11:42 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

Hmm. Some day I should make an inventory of which ones I actually have. I have got these from a friend who used to work in a company that produces telephones, in the early 1990s. I don't entirely even know whether these all work. :-) Haven't had a lot of use for them. Therefore, not much experience ...
by Bisqwit
Wed Jun 06, 2012 11:21 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

Dwedit wrote:There are lots of other multicarts that use music ripped from Ninja Hattori Kun.
No doubt.
by Bisqwit
Wed Jun 06, 2012 11:08 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

if you got a EPROM burner Nor something like that. But I can solder. I also have a small stock of some generic 74-class ICs, some resistors and some capacitors and stuff like that. No circuit boards though. Would it be possible to e.g. somehow wire a portion of the cartridge to a parallel port in a...
by Bisqwit
Wed Jun 06, 2012 11:07 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

Re: Simple one-time cartridge dumping...

Drag wrote:Edit: Now that I think of it, if you have access to a powerpak or something, you could give Chris Covell's tape dump program a whirl.
Reference to "inexpensive", though not obviously, implied that I don't have any fancy NES hackdom related hardware such as PowerPak.
by Bisqwit
Wed Jun 06, 2012 10:29 am
Forum: NES Hardware and Flash Equipment
Topic: Simple one-time cartridge dumping...
Replies: 48
Views: 30858

Simple one-time cartridge dumping...

I have got this NTDec cartridge. Famicom compatible.* http://bisqwit.iki.fi/kala/snap/ntdec5in1/front.jpg http://bisqwit.iki.fi/kala/snap/ntdec5in1/back.jpg http://bisqwit.iki.fi/kala/snap/ntdec5in1/chip1.jpg http://bisqwit.iki.fi/kala/snap/ntdec5in1/chip2.jpg It has been bugging me for a long time,...
by Bisqwit
Tue Jun 05, 2012 10:39 am
Forum: NESemdev
Topic: NTSC borders in emulators
Replies: 12
Views: 6088

OK, so emulators don't do it. I would like to extend this to a feature request to any emulator authors who're listening: please consider rendering them. :) Already doing it in my emulator (git://bisqwit.iki.fi/nesemu1), in one of the branches anyway. And yes, I kind of love the fact that in Super M...