BadApple... again :)
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I added a 8 MB version, indeed the hacked emulator do not support DMA from source > 4 MB version so i modified a bit the code to take care of that.
See the first message for more details.
See the first message for more details.
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the 8 MB fails on my Mega everdrive (On a model 1 genesis) . I either get a solid colored screen, a screen with snow on it with scrambled letters, or a screen that says "address error" then "illegal instruction !"
P.S. The split 4 MB files work just fine. It looks great! I wish I could get the 8 MB one to play, so I can enjoy it uninterrupted
P.S. The split 4 MB files work just fine. It looks great! I wish I could get the 8 MB one to play, so I can enjoy it uninterrupted
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The 8 MB rom cannot work on basic everdrive (even the 8 MB version) but theoretically it should work on Mega Everdrive as it does support unbanked large rom (<= 10 MB).
bobthebuilder>
As i don't own i Mega Everdrive myself i cannot test it directly. I used a hacked version of Gens which support large rom but with some limitation (as no DMA on source address above 4 MB).
You said the error is not always the same... at least it sometime display the intro text ?
bobthebuilder>
As i don't own i Mega Everdrive myself i cannot test it directly. I used a hacked version of Gens which support large rom but with some limitation (as no DMA on source address above 4 MB).
You said the error is not always the same... at least it sometime display the intro text ?
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Yes, sometimes it does, but then it will "crash".Stef wrote: As i don't own i Mega Everdrive myself i cannot test it directly. I used a hacked version of Gens which support large rom but with some limitation (as no DMA on source address above 4 MB).
You said the error is not always the same... at least it sometime display the intro text ?
Hope you can figure it out and if you need any testing done, I am more than willing to help.Stef wrote:I think i know what is the problem with the 8 MB version, i will fix it asap
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Thanks I uploaded a new version (same url) :bobthebuilder wrote:Yes, sometimes it does, but then it will "crash".Stef wrote: As i don't own i Mega Everdrive myself i cannot test it directly. I used a hacked version of Gens which support large rom but with some limitation (as no DMA on source address above 4 MB).
You said the error is not always the same... at least it sometime display the intro text ?
Hope you can figure it out and if you need any testing done, I am more than willing to help.Stef wrote:I think i know what is the problem with the 8 MB version, i will fix it asap
https://dl.dropbox.com/u/93332624/dev/m ... dApple.bin
But i really doubt it will change anything as the version was somehow up to date.
Can you read the text ? or is it all garbled ? someone else with a mega everdrive reported me that text was ok but then it crashs when he pressed start (he also got some weird sound).
I'm afraid the Z80 cannot read > 4MB range... i should try a version without sound to test if that is the problem.