Search found 82 matches

by JimDaBim
Sat Jun 20, 2015 3:34 am
Forum: Reproduction
Topic: Unlicensed games on licensed cartridges
Replies: 5
Views: 4103

Unlicensed games on licensed cartridges

Is it possible to put an unlicensed game on a licensed donor cartridge? For example, I've read that the Codemasters/Camerica games try to circumvent the lockout chip by trying to glitch it by sending electrical impulses etc. And I won't put such a cartridge into my NES since I don't want it to break...
by JimDaBim
Wed Jun 17, 2015 4:29 pm
Forum: General Stuff
Topic: Tengen Tetris vs. Nintendo Tetris on a gameplay level
Replies: 10
Views: 3451

Re: Tengen Tetris vs. Nintendo Tetris on a gameplay level

Yep. The rotation and the accelerating soft drop are basically what bothers me the most in Tengen's Tetris. And the Game Boy version is just slow Is this the reason why I have much less problems to clear level 9, height 5 in the Game Boy version than in the NES version? So, which is the "definite" v...
by JimDaBim
Tue Jun 16, 2015 12:55 am
Forum: General Stuff
Topic: Tengen Tetris vs. Nintendo Tetris on a gameplay level
Replies: 10
Views: 3451

Tengen Tetris vs. Nintendo Tetris on a gameplay level

It's pretty clear that Tengen's version of Tetris provides many more options and is therefore considered to be the superior version. But what about when it comes to the gameplay itself? Which version is better? In comparisons, this is never talked about for some reason. I mean, the game do feel diff...
by JimDaBim
Tue Jun 16, 2015 12:47 am
Forum: NESdev
Topic: Palette test ROM request:
Replies: 7
Views: 3085

Re: Palette test ROM request:

What I'm working on is an old project I am revisiting with new hardware, and that's to make an accurate reproduction of the original composite output palette the NES front-loader generates. This could be a bit difficult. And here is why: I have two TVs of exactly the same brand. Same model number a...
by JimDaBim
Sun May 31, 2015 12:25 pm
Forum: NESemdev
Topic: Emulator for PC10 ROMs
Replies: 5
Views: 2082

Re: Emulator for PC10 ROMs

I'm sure it wouldn't be difficult to convert between the two. Conversion wouldn't be necessary since getting the right ROMs isn't the problem. I'm just curious to see the PC10 actually emulated on an NES emulator. no$nes (which has pretty bad sound, btw) says "Invalid Cartridge size." But I let Goo...
by JimDaBim
Sun May 31, 2015 7:27 am
Forum: NESemdev
Topic: Emulator for PC10 ROMs
Replies: 5
Views: 2082

Emulator for PC10 ROMs

Is there any NES emulator that can display the additonal information for PC10 games? All the popular ones only play the game as a normal NES game. I know that MAME shows the image of both screens, but MAME uses completely different ROM files. I was wondering if an emulator for NES games has the abil...
by JimDaBim
Sat May 02, 2015 11:12 am
Forum: General Stuff
Topic: SNES palette
Replies: 15
Views: 4240

Re: SNES palette

So, am I right or am I wrong?

If I'm wrong, what's wrong in my assumptions?

If I'm right, why don't they calculate the correct values instead of using such a dirty algorithm of "repeating the bits"?
by JimDaBim
Wed Apr 29, 2015 5:54 am
Forum: General Stuff
Topic: SNES palette
Replies: 15
Views: 4240

Re: SNES palette

Because division is expensive Sure, but who says that the division has to be done every time? There are only 32 values per color, so why not create an array that holds all the possible PC RGB values (for each separate sub color), so they only have to be created once in the beginning? You can even c...
by JimDaBim
Tue Apr 28, 2015 10:44 pm
Forum: General Stuff
Topic: SNES palette
Replies: 15
Views: 4240

Re: SNES palette

To map a lower bit-depth RGB value to 24 bits, and have the brightest value = #FFFFFF, it's common practice to repeat the old bits however many times across the newly-available lowest bits (24-bit). Why don't they use the calculation of A / B = C / D? For each separate color red, green, blue, do: P...
by JimDaBim
Tue Apr 28, 2015 3:23 pm
Forum: General Stuff
Topic: SNES palette
Replies: 15
Views: 4240

Re: SNES palette

But only 15 bits, right? So, how does a specific color calculate to the 24 bit RGB value? I assume the SNES color value R = 00000b G = 00000b B = 00000b would be the value 0 (black) in 24 bit RGB as well. And R = 11111b G = 11111b B = 11111b in 15 bit RGB would probably be 0xFFFFFF in 24 bit RGB sin...
by JimDaBim
Tue Apr 28, 2015 1:51 pm
Forum: General Stuff
Topic: SNES palette
Replies: 15
Views: 4240

SNES palette

Do the colors of the SNES palette have definite RGB values or is the palette subjective like the one on the NES?
by JimDaBim
Sat Apr 25, 2015 12:02 pm
Forum: General Stuff
Topic: Toshiba CRT service menu default values
Replies: 2
Views: 1780

Re: Toshiba CRT service menu default values

Alright, I did some research and found an official service menu manual that's different from the normal user manual. The service manual actually has a whole bunch of default values listed. And then they tell you to what to configure when they were set. The only two values not to have any default val...
by JimDaBim
Mon Apr 13, 2015 2:25 pm
Forum: General Stuff
Topic: Toshiba CRT service menu default values
Replies: 2
Views: 1780

Toshiba CRT service menu default values

Recently, I've examined various TVs of a similar brand: Toshiba 13A22, 23, 24 and 25. They all are more or less the same. Now, I opened the service menu (pressing volume - on the TV and button 9 on the remote at the same time for a few seconds). And in the service menu, no two TVs have the same valu...
by JimDaBim
Sun Apr 05, 2015 4:04 pm
Forum: General Stuff
Topic: Question about scanlines on a TV
Replies: 7
Views: 3006

Re: Question about scanlines on a TV

Thanks for the information. That makes it a lot clearer.
by JimDaBim
Sat Apr 04, 2015 3:43 pm
Forum: General Stuff
Topic: Question about scanlines on a TV
Replies: 7
Views: 3006

Re: Question about scanlines on a TV

Thanks for the answers. I've got another question, though: Why is this whole "cutting away 16 scanlines on NTSC TVs" even a thing? NTSC TVs show 224 scanlines, PAL TVs show 240. But with the system menu, I can still make the remaining 16 scanlines visible. So, the TV doesn't really cut it away. It's...