2 Things Sdio And Gba Emulation


for SDIO youll need a developer willing to work on such a project

youll need a developer willing to work on such a project with an SDIO WiFi SD card, who also has access to a wireless internet connection..
 
Correct me if I'm wrong but I thought that the GP2x SD card slot was already an SDIO slot? Wouldn't we just need the drivers to load it at boot time? I think you might be able to possibly work on some SDIO wifi mdoules from the zaurus which is an arm based linux handheld. Also about GBA, I believe that we will get a decently working port of it.
 
hopefully, i would really love fullspeed GBA emulation, but im not getting my hopes up though (and then i might be nicely suprised?)

i dont know where else i can put this, but if any dev can get a fullspeed or at least playable GBA emu with a skinnable rom selector with directory support ill give em £50 about $87 for sure, and thats a promise (you can quote me)

im sure many others will give to a dev who can pull that off to!
 
Wolfspirit posted on Dec 22 2005 at 12:12 AM said:
Correct me if I'm wrong but I thought that the GP2x SD card slot was already an SDIO slot? Wouldn't we just need the drivers to load it at boot time? I think you might be able to possibly work on some SDIO wifi mdoules from the zaurus which is an arm based linux handheld. Also about GBA, I believe that we will get a decently working port of it.

The only difference in hardware between an SD and SDIO slot, is that under SDIO, pin 8 should be connected from the card slot to the processor. Considering the GP2X has 4-bit SDIO, this is already true (pin 8 is DAT1 or IRQ depending on SD4/SPI mode).

So yes, we just need drivers.

However, even though the Zaurus is ARM-based, I don't think it's MMSP2-based, so the SD control registers are most likely very different, so the source code would be needed to port, which is not going to happen.
 
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iignotus posted on Dec 21 2005 at 07:50 AM said:
Full speed GBA emulation is possible on the GP2X.


Wow you sound pretty sure. How do you know? Have you tried making a GBA emu, or are you just talking out of your arse?
 
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Wolfspirit posted on Dec 21 2005 at 04:12 PM said:
Correct me if I'm wrong but I thought that the GP2x SD card slot was already an SDIO slot? Wouldn't we just need the drivers to load it at boot time? I think you might be able to possibly work on some SDIO wifi mdoules from the zaurus which is an arm based linux handheld. Also about GBA, I believe that we will get a decently working port of it.

It's almost like that's "all we need"... drivers are going to cost a lot of money, and are going to take a lot of time and advanced programming to see the light of day. Beleive me, the thought of turning my GP2X into a camera really tickles me in the right way :), but it's bloddy impossible.

Plus, there's a huge power requirement for some SDIO devices, and I beleive bluetooth is one of them. The GP2X can't handle the power requirements of both it's processors very well, let alone a device that uses ten mA a second when off (!!)...
 
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Well, if the zaurus has drivers, and the only thing that needs modification is the SD control registers, there can't be _that_ many of them... just need someone with some good disassembly analysis skills (I've done this to the BIOS on the Casio Algebra FX 2.0 calculator to find how the LCD, keypad, and serial port work; it's not terribly difficult, but perhaps time consuming), and info on how the MMSP2's slot works. It's hard to know how difficult it would be to port without looking at how it's put together.

I'd be a little worried about power consumption though. And of course hacking a binary only module would be slightly illegal... If I remember, some of the linux drivers weren't free in either sense of the word.
 
DaveC posted on Dec 22 2005 at 01:07 AM said:
iignotus posted on Dec 21 2005 at 07:50 AM said:
Full speed GBA emulation is possible on the GP2X.


Wow you sound pretty sure. How do you know? Have you tried making a GBA emu, or are you just talking out of your arse?
Interesting that you didn't question Drak at all.

You are becoming like a broken record.
 
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I'll add 25 dollars for a decent GBA emulator on top of paradoxes.. we shoul dhave a thread with pledged donations.. we already have over 100 $ here
 
DaveC posted on Dec 21 2005 at 07:07 PM said:
iignotus posted on Dec 21 2005 at 07:50 AM said:
Full speed GBA emulation is possible on the GP2X.


Wow you sound pretty sure. How do you know? Have you tried making a GBA emu, or are you just talking out of your arse?
Call it a hunch, mate ;)
 
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I'll also put up $25 for a fullspeed GBA emulator with sound.

And as far as the SDIO goes, my main use would be a web-based front end for Mr. House (www.misterhouse.net), but that would also require a browser. That would be rad, but I do doubt it would ever happen. I guess I'll have to use the PSP for that, once they get flash running so I could make it pretty.
 
iignotus posted on Dec 22 2005 at 02:36 PM said:
DaveC posted on Dec 21 2005 at 07:07 PM said:
iignotus posted on Dec 21 2005 at 07:50 AM said:
Full speed GBA emulation is possible on the GP2X.


Wow you sound pretty sure. How do you know? Have you tried making a GBA emu, or are you just talking out of your arse?
Call it a hunch, mate ;)

I agree with you. It might take a while for a dev to want to do it because it will be a little time consuming, but it will happen sooner or later.
 
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sand_man posted on Dec 22 2005 at 07:38 AM said:
iignotus posted on Dec 22 2005 at 02:36 PM said:
DaveC posted on Dec 21 2005 at 07:07 PM said:
iignotus posted on Dec 21 2005 at 07:50 AM said:
Full speed GBA emulation is possible on the GP2X.


Wow you sound pretty sure. How do you know? Have you tried making a GBA emu, or are you just talking out of your arse?
Call it a hunch, mate ;)

I agree with you. It might take a while for a dev to want to do it because it will be a little time consuming, but it will happen sooner or later.


In theory, it should be possible to make it work full speed. Since both the GP2X and GBA are based on a ARM processor. So, it could be done by coding a high level emulation layer that translates the GBA system calls to something the GP2X understands. The VisualBoyAdvance runs so slow because it uses low level emulation, which shouldn't be necessary because of the hardware similarities.
 
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Are there already any open source SDIO drivers out? For example for linux?

I'm interested in the source code of these.
On the other hand, is already somebody working on a driver for the GP2X?
I hope that one day, there is a small mozilla port to the gp2x and a port of Nano-X Server or something alike... I'd love to surf the web wirelessly :)

greets,
Pix ;)
 
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