Search found 474 matches

by Gilbert
Mon Jun 07, 2021 10:28 pm
Forum: Other Retro Dev
Topic: Neo Geo Tiles Covered Up?
Replies: 5
Views: 672

Re: Neo Geo Tiles Covered Up?

EDIT: It works now if I make the tilemap start at an index lower than everything else. I read the wiki and couldn't find that info anywhere :oops: I don't know much about Neo Geo, but as the system (almost) does not have any background layer, a "tile map" is just an array of sprites (I think I've r...
by Gilbert
Sat May 15, 2021 6:58 pm
Forum: General Stuff
Topic: How were Neo Geo games so big?
Replies: 22
Views: 9660

Re: How were Neo Geo games so big?

I think the Neo Geo CD is more or less this? I never studied its specs, but it at least could load (uncompressed) tile files directly from disc into RAM like the FDS. I don't know whether the CPU can change the RAM tile data in game though. If it can it should be able to use compressed tile data or ...
by Gilbert
Sat May 15, 2021 7:29 am
Forum: NESemdev
Topic: My emulator is coming along nicely
Replies: 3
Views: 2355

Re: My emulator is coming along nicely

Congrats. Able to emulate SMB's title screen perfectly is a milestone in getting "simple" games to work.
I think a lot of emulator authors got a lot of troubles there.
by Gilbert
Wed May 12, 2021 10:20 pm
Forum: NES Graphics
Topic: HD Pack's Mesen
Replies: 59
Views: 114038

Re: HD Pack's Mesen

Have you tried checking the links under the video's description (may need to click "more" first)? At least one of the pages contain a couple of descriptions (in Spanish, or whatever similar language that I am not able to read and too lazy to use Google Translate) and the download of the pack at the ...
by Gilbert
Wed May 12, 2021 10:12 pm
Forum: NESemdev
Topic: What causes Alfredo and Jigsaw to fail on most emulators?
Replies: 3
Views: 2633

Re: What causes Alfredo and Jigsaw to fail on most emulators?

TCRF has some information for this masterpiece.
by Gilbert
Thu May 06, 2021 10:18 pm
Forum: Newbie Help Center
Topic: My cart runs differently in different emulators
Replies: 63
Views: 18969

Re: My cart runs differently in different emulators

CHR ROM is on the game cartridge. It is connected directly to some of the pins of the cart, so the the PPU can access the tile data from the ROM directly. The PPU itself doesn't have any memory to hold tile data, so there is no need to copy those data to the PPU (if that's what you meant by "saving"...
by Gilbert
Thu May 06, 2021 1:56 am
Forum: General Stuff
Topic: How were Neo Geo games so big?
Replies: 22
Views: 9660

Re: How were Neo Geo games so big?

Also, one feature (problem?) of the MVS/Neo Geo is that, like the Famicom, it does not have RAM in the console to hold graphics pattern (unless it's a Neo Geo CD), so all the graphics data on the cartridges are uncompressed and are directly accessed by the system (until the games eventually became s...
by Gilbert
Tue May 04, 2021 10:29 pm
Forum: Other Retro Dev
Topic: Megadrive soundtracks that explicitly use the ability to tune each operator independently
Replies: 6
Views: 3669

Re: Megadrive soundtracks that explicitly use the ability to tune each operator independently

Just googled Xeno Crisis... This is a fairly new game though. I'm just curious. Are there any games released while the console was still current in its generation (even if it's near the end, like after the 32X and Saturn were out) that use such feature? I wonder how many features/tricks that were ne...
by Gilbert
Tue May 04, 2021 6:14 pm
Forum: NESemdev
Topic: Mesen - NES Emulator
Replies: 963
Views: 574319

Re: Mesen - NES Emulator

Chinese: "SimSun" (?) Worse still, that font is just for Simplified Chinese (as signified by the "Sim" in the font name; it's not a font created by Maxis!), so it's not for the other half of Chinese people (like me). Because of this I often set the locale of my Windows to English or Japanese top re...
by Gilbert
Sat Apr 24, 2021 9:14 pm
Forum: NESdev
Topic: 96kb FPS
Replies: 8
Views: 4806

Re: 96kb FPS

I remember trying this game and was amazed by it. Never dug into how it's done (so thanks for the video!) but I figured that (nearly) everything was procedurally generated. My virus scanner later treated the executable as a threat (possibly because it did a lot of hacky stuff at low level) and delet...
by Gilbert
Wed Apr 21, 2021 8:54 pm
Forum: NES Hardware and Flash Equipment
Topic: NES RAM upgrade
Replies: 18
Views: 6310

Re: NES RAM upgrade

As everyone already mentioned it would be better if the RAM is contained in the cartridge whenever needed anyway. Also, as the usual practice of cartridge games is to run code from ROM, extra RAM is rarely necessary, besides uses such as (destructible) game maps (Sim City, etc., but in these cases y...
by Gilbert
Tue Apr 20, 2021 4:02 am
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 19895

Re: Loss of interest for computer scinence, anyone else ?

Wermish wrote:
Tue Apr 20, 2021 2:53 am
Writing java on paper is horrible.
Writing JAVA is horrible, be it on paper or with a keyboard. :roll:
But COBOL... The bar is so high that it's hard to beat it.
by Gilbert
Sun Apr 04, 2021 11:45 am
Forum: Newbie Help Center
Topic: Scrolling RPG maps
Replies: 69
Views: 21780

Re: Scrolling RPG maps

Because it has much more freedom in the size of tile maps? Tile maps for the PCE can be (almost) any size and (almost) anywhere in the VRAM. I don't know about SFC and its complicated graphics mode, but the FC only has enough memory for 2 screens, and the SMS only has 1 single screen. I've also read...
by Gilbert
Thu Apr 01, 2021 8:16 pm
Forum: NES Graphics
Topic: Amount of BG tiles used in 8-bit and 16-bit video games
Replies: 7
Views: 3913

Re: Amount of BG tiles used in 8-bit and 16-bit video games

While you can do whatever you want with a VRAM system it would be much easier to manage if you introduce some logical structure to it. For example the offical tile editor of the PC Engine (DF) arranged the 64kb VRAM into 8 8-kb banks (0-6 in item 2 in the screenshot, 1 bank was used as the work bank...
by Gilbert
Tue Mar 30, 2021 2:14 am
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 19895

Re: Loss of interest for computer scinence, anyone else ?

Awww Matlab. Reminds me of the questionable good old time. My undergraduate project was on pattern recognition using artificial neural networks, and I ran some simulations using Matlab, typically a number of matrix operations and the best computers the faculty lab could offer was 80486 PCs with at m...