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Post by TheMVRules on May 6, 2010 10:10:59 GMT -5
Split from YM2612 topic.
No flash carts supports anyway that large ROMs.
So it's kinda useless if you want to have larger ROMs.
For an demo however, you could use PCM frequency 8000Hz and 1 or 2 songs, that may fit into 4MB. But if you want to do a complete port (I think that is possible), use FM music.
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Post by Shiru on May 6, 2010 11:32:57 GMT -5
It was tested exactly by using flash cart, Krikzz one if I remember correctly (his website says it supports 8MB). How it should be possible to port MS with minimal changes if the original has 26+ MB of data, using the same CPU and 4-bit graphics? Only 8 MB of the data is sound and music, all other is graphics. Not to mention that video capabilites of SMD is much worse than Neo-Geo. If you've meant cut-down version, I agree, something like GBA version is doable (like I said above). |
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Post by TheMVRules on May 6, 2010 11:48:05 GMT -5
Yeah, but the 8-MB mode wouldn't work with any of the add-ons. Also the site is down. With 32X, it would be even more than possible. Then, use the MegaCD addon and no size issues  But the Mega CD-32X has 3 power supplies  But you could burn the game on a CD-R and avoid flash carts at all. |
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Post by Shiru on May 6, 2010 12:02:46 GMT -5
The site is not down, tested it before post, and now too.
Well, I'm personally don't get an idea to port MS to SMD - it obviously will be worse than the original, and the original is widely available, even on PC (1-6 collection came out this year). Theoretically I think it may be possible to port the game to 32x without so major cut-down, but not sure if it is possible to have full framerate. CD is out of question, the game has a lot of data which can't fit into available RAM. Even on PlayStation, with 3.5MB of RAM (main+video+sound), it had a lot of loadings during the gameplay.
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Post by TheMVRules on May 6, 2010 12:10:40 GMT -5
The Neo-Geo version did not run in 60fps either.
And don't even think about the sequel...
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Post by TheMVRules on May 6, 2010 12:13:52 GMT -5
And if you're short of cash, 65 bucks holy shit... It is cheap for a flash cart, but you could even get a used Megadrive with 100 games for that money.
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Post by Shiru on May 6, 2010 12:30:50 GMT -5
MS runs solid 25/30 FPS most of time, though later parts has a lot of slowdowns. I doubt that 32x could run it at 25/30 FPS.
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Post by TheMVRules on May 6, 2010 12:43:10 GMT -5
Well, that depends on how good you are at SH2 programming. With only the 68K driving the 32X VDP, it would not go so fast; you would need to use the SH2s: 68k drives the HUD and sound, Master 68K does the dirty math work and Slave 68K draws the screen. Now if BEX supported that Then you could probably even get the game to run in 60fps. |
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Post by Tom Maneiro on May 6, 2010 14:45:27 GMT -5
And if you're short of cash, 65 bucks holy shit... It is cheap for a flash cart, but you could even get a used Megadrive with 100 games for that money. That cart looks sweet, and the latest version even has a SD slot Also, the ancient Tototek cart costs $80.... Also... How the hell you can run 64Mbit carts on real hardware? Is some sort of mapper/bankswitching needed? |
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Post by Shiru on May 6, 2010 15:15:02 GMT -5
No additional hardware needed, but this will not work with add-ons (i.e. you should disconnect CD and 32x, if you have one). The requirement for games to not go above 4 MB seems was just because of this.
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oompa loompa
I AM THE GOVERNATOR 
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Post by oompa loompa on May 6, 2010 15:29:24 GMT -5
It was tested exactly by using flash cart, Krikzz one if I remember correctly (his website says it supports 8MB). How it should be possible to port MS with minimal changes if the original has 26+ MB of data, using the same CPU and 4-bit graphics? Only 8 MB of the data is sound and music, all other is graphics. Not to mention that video capabilites of SMD is much worse than Neo-Geo. If you've meant cut-down version, I agree, something like GBA version is doable (like I said above). 8MB of address space without bankswitching is totally possible. However, it is not totally compatible with all the Genesis models. Like, if I remember right, I used the A23 signal, plus some other logic to select my memory. On the Genesis 2 model, my cartridge did not work (would get an exception when accessing the 0x400000-0x7FFFFF space). The logic has to be very good as well. I don't remember my schematic, or my schematic might be inside the PLD chip or whatever. But games using DMA copy show garbage when accessing the 0x400000-0x7FFFFF space as well. If you don't use the CE signal (forgot the technical term for CE on the Genesis), then doing DMA copy will also result in garbage when accessing 0x000000-0x3FFFFF. It's just really recommended to use bankswitching on carts > 4MB, if you want to be compatible with everything (old generation Genesis + new things like Genesis 3 + GLOB chips) Hehe  Just my opinion/thoughts. I personally wouldn't pay $65 for a flash cart . I know they're hard to produce because they're so low in volume, but investing $65 in a console that is 20 years old is spendy to me. I think if someone was desperate enough to play Genesis games on their TV, they would go and use the TV-OUT option of their VGA card, and something like a USB to controller thing. I mean, from a collector's point of view, this might be the best thing ever . Old electronics = junk, or someone else's treasure. Old cars = antiques  $20 for a flash cartridge with a USB connection sounds reasonable though |
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Post by Shiru on May 6, 2010 17:15:55 GMT -5
Just make a good game, and you have good chances that you'll see it on actual cheap carts somewhere like China. This happened with many fan translations of SMD games, at least.
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oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
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Post by oompa loompa on May 6, 2010 18:05:42 GMT -5
I'd like for some one to rip off one of my games and sell it You guys know that I don't make anything massive (can't even get 2 mario levels into my platformer), so that's not gonna happen . You guys haven't seen my Zelda/Muffin Quest RPG being sold in China for the Genesis console yet, have you? I think I was selling t-shirts of Muffin Quest at one time haha |
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Post by Tom Maneiro on May 6, 2010 22:05:11 GMT -5
On the flash card prices: NDS flash carts costs around $25-30 these days, and they even include fat MicroSD cards... so i agree that Genesis/MD flash carts should be cheaper if we want more retro-coders. I would not pay more than $50 (S&H included) for one of these gizmos Hey, you just described my debugging station! (big Samsung flat CRT 480i TV + Dell laptop + cheapo composite video cable to laptop TV-out + a couple of Genius MaxFire G-08XU cheep pads). But still, real hardware is the REAL thing, and nothing can beat that... I have a bunch of spare Flash/EEPROM ICs, a soldering iron, some donor carts, but no ROM programmer. Bummer |
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Post by TheMVRules on May 7, 2010 4:25:01 GMT -5
shiru & oompa loompa: Yeah, I remember some Russian guys released Sonic Megamix for it's "Megadrive portable"... Tom Maneiro: Yeah, the MD flash carts is still overpriced, the Everdrive is a good step, but it should be more cheaper. But then remember that there's a larger market for DS flash carts than for MD flash carts. But then you could use a MegaCD and no more flashcarts. Loading times though. |
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