Author Topic: GBA emulator?  (Read 25113 times)

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Offline Yeong

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Re: GBA emulator?
« Reply #45 on: July 25, 2012, 02:40:51 pm »
what was AHB again?
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Offline calc84maniac

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Re: GBA emulator?
« Reply #46 on: July 25, 2012, 02:52:30 pm »
It's the memory bus, basically.
"Most people ask, 'What does a thing do?' Hackers ask, 'What can I make it do?'" - Pablos Holman

Offline TheNlightenedOne

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Re: GBA emulator?
« Reply #47 on: July 25, 2012, 02:54:09 pm »
I have no idea what this means, but it officially stands for AMBA High-speed Bus.
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Offline critor

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Re: GBA emulator?
« Reply #48 on: July 25, 2012, 04:19:03 pm »
That reminds me, aside from the resolution, I wonder if Doom for the GBA will look better than the Nspire one? I never tried the GBA port.

I tried.
It's much slower, but not as slow as the Prizm port. ;)

The graphics aren't as good because of the inferior GBA screen resolution.

It seems to be less colorfull, but it might be because of the use of different textures.

I've also noticed some physic differences in the 1st level.
« Last Edit: July 25, 2012, 04:22:07 pm by critor »
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Offline DJ Omnimaga

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Re: GBA emulator?
« Reply #49 on: July 25, 2012, 06:33:50 pm »
Ah I see. Do floor and ceilings have textures at all? If not, then maybe it's based on the SNES port. I know also in some ports the camera moves up and down while walking, but in the SNES version, it doesn't. Only the gun moves a bit.

Offline critor

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Re: GBA emulator?
« Reply #50 on: July 25, 2012, 07:05:18 pm »
Also, were you overclocking the AHB? That's the only thing that's ever caused me to lose my OS, I think.


Thank you for your report.

I've just updated Nover.

You can still try to overclock as much as you want, but you'll be warned of the danger above 75MHz for the AHB instead of 80MHz.


I should help new overclockers avoiding problems ;)

So best assumed stable config for all TI-Nspire CX is now 222MHz CPU and 75MHz AHB.

You may be able to increase the CPU frequency even more without any stability problem on your handheld. Don't fear anything: you'll just get a reboot if you set it too high.

But you mustn't increase the AHB frequency higher than that, as there is a high probability of corrupting your filesystem, which will cause you more trouble than a simple reboot...


Download Nover:
http://tiplanet.org/forum/archives_voir.php?id=3890
« Last Edit: July 25, 2012, 07:05:42 pm by critor »
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Offline DJ Omnimaga

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Re: GBA emulator?
« Reply #51 on: July 25, 2012, 07:07:54 pm »
So there are calcs who could go up to 80 and others to 75? I hope in the future TI won't change that so it can only go up to half of that or something... (or stuff like the 84+ extra RAM pages hardware change)

Offline critor

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Re: GBA emulator?
« Reply #52 on: July 25, 2012, 07:19:53 pm »
So there are calcs who could go up to 80 and others to 75? I hope in the future TI won't change that so it can only go up to half of that or something... (or stuff like the 84+ extra RAM pages hardware change)

Not sure... To my advice, 80 MHz AHB just causes problems, sooner or later.

But there are calcs whose CPU can be set at 240MHz and others at only 222MHz. That's why my CPU warning starts after 222MHz.
« Last Edit: July 25, 2012, 07:20:47 pm by critor »
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Offline DJ Omnimaga

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Re: GBA emulator?
« Reply #53 on: July 25, 2012, 07:23:30 pm »
I thought the max was 150? O.O

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Re: GBA emulator?
« Reply #54 on: July 25, 2012, 09:36:21 pm »
I thought the max was 150? O.O

Not on CX.
Max is 300
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Re: GBA emulator?
« Reply #55 on: July 25, 2012, 10:12:54 pm »
Lol wow, and what's the default speed? I remember on the regular Nspire it was 90 on older OSes and 120 on newer ones, overclockable to 150. 300 is like more than 3 times the PRIZM max speed (94.3 MHz, for now).

Offline calc84maniac

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Re: GBA emulator?
« Reply #56 on: July 25, 2012, 10:14:32 pm »
300 isn't actually achievable on any CX that we know of, at least not without instantly crashing. That's just the maximum we can attempt to do. Right now I think the default is 132MHz.
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Offline DJ Omnimaga

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Re: GBA emulator?
« Reply #57 on: July 25, 2012, 10:31:41 pm »
Oh ok I see. I was starting to wonder if we could emulate the Nintendo 64 now :P

Offline xacto

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Re: GBA emulator?
« Reply #58 on: July 28, 2012, 09:13:26 pm »
That would be totally awesome!

Offline Camdenmil

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Re: GBA emulator?
« Reply #59 on: July 29, 2012, 12:07:15 pm »
I ran project 64 on an old 800 Mhz Pentium 3 based computer yesterday to see how it would perform. It was really slow. The nspire's lack of 3d hardware would make performance probably less than 1 fps. The GBA has like 256k ram and 128k vram AFAIK. Why doesn't the GBA emulator not run on non-cx nspires?
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