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For the last couple of days I've been trying to upload a video of me playing LoZ Ocarina of Time / Sin and Punishment but my internet fails me. I was going to post some thoughts in that thread. I should be able to upload it tonight (I'm going to my brothers where they have much faster internets).

Arrgg. Now i feel bad for getting a prototype. :)

Yeah i did. Haven't had much time to play with it and get it running properly (blame work). I don't have much to add beyond Notaz/DaveC/Zodttd/Skeezix, but my impressions so far are: The controls are fantastic, there's no handheld device i know of that rivals this. The Nubs are really nice...

It's not really possible to write to the lower and upper half with the NEON, except with the VTBL and VEXT instructions. What i think has confused alot of people is the documentation has renamed all the VFP instructions to be NEON-like, ie vadd s0,s1,s2 .... these are actually VFP executed not...

Alrighty, looks like i'll just go ahead and take over this thread with dev talk. :) Not a huge amount, it basically merges alot of similar instructions.... makes the dynarec alot simpler. Thats good, are you still emulating without VFP? I don't think NEON would really be necessary for the N64...

To be honest, I have no idea, I haven't been able to get past the bios screen :) . However there are video's of the DC running approx half speed, and it is apparently FPU bottlenecked. I'm very surprised how well it works, even without register allocation anywhere (except the context register)...

Yep, drk||Raziel and Zezu haven't been very active lately, drk||Raziel told me he gave up after he ran across an annoying OGL bug. However, I've contacted them and obtained access to the svn, so some kind of release is possible.... once i've ironed out some bugs. Currently i cannot get past some...

Wow, this is very exciting. Mines about 400km away... :) . Great to hear about the controls, hows the L/R button position? I almost always find them to be too close to the corners.

In that case here's the functions I've implemented: math_neon.h It covers pretty much all the drop in replacements for the standard cmath stuff. It's fairly optimised while still maintaining the cmath argument compliance... but I'll add some vectorised versions which should significantly...

I assume by FP you mean Fixed Point. I don't think it would be very suited to NEON. The Fixed Point cmath functions I've seen implemented rely on loops to get decent accuracy. Loops do not agree with neon, Every time a NEON dependent branch is necessary a NEON register must be sent to the ARM...

What about mixing Fixed point values of different precision? ie adding a 16.16 with 8.24, how do you decide whether the final value is 16.16 or 8.24? I've found that fixed point is typically a real pain in the arse, you either have to be very aware of what the range of each variable is or you...

There isn't any NDA in any formal sense. I don't think there would be a functioning Pandora if it wasn't for Notaz, He's done alot of the OS work. I just think he's feeling under appreciated (and rightly so), people like Pickle and myself make some nice video's of stuff that is relatively easy...

At the moment there doing a full matrix mul on the SGX, but it's not really neccessary.... Its just: x' = a*x + b*z; y' = c*y + d*z; z' = e*z + f*w w' = z where a,b,c,d,e,f = const. Yea, i have access to the source. I'm meant to be looking into NEON-zing stuff, but i got side tracked with...

True. Yeah that's what I meant, the Dreamcast's GPU maps more easily to OpenGL (with the much higher batching). Yep. 15/20fps seems to be used a fair bit in the complex games. Its amazing that it looks so smooth, i guess the fps doesn't vary much. Yea, forgot about that. There is a projection...

I think drkIIRaziel is right. The Dreamcast actually has significantly simpler per fragment operations than the N64, obviously the DC has much higher polygon throughput but the SGX is much better at handling that. On the dreamcast there are only a handful of RGB colour operations used to mix a...

Damn I'm Jealous. Buttons and all. I haven't noticed much ghosting, but i guess i've only really been watching 3d games for my n64 work. The first time i saw a PSP1000 i just thought it was an ingame effect... :) Based on the Board, i can say that i wouldn't want the device to be any smaller...

I ported Zdoom to GP2X, Pickle recently had a go at porting my source to the Wiz but i think he ran into some problems. There's alot of memory packing/alignment bugs that are hard to track down.... I'm guessing this is why nobody else has ported it to non-x86 platforms.

You don't need an SDK to make programs for most platforms, especially LINUX based ones. Unlike closed platforms (iPhone, etc), You can just copy your program binary onto a SD card and run it on the Pandora like a normal computer. An SDK is generally just a properly setup group of libraries +...

From my eyes the SGX appears to be dominating with its proven track record and TI/Samsung/Apple apparently behind it (aswell as the rumored PSP2). If the Tegra2 is in the new DS then it's unlikely to be an open platform.... at least initially. Yeah that's why i didn't include the DSP in my...

I think the Pandora will be plenty fast enough for a while yet. Half the fun developing for a handheld is the fact you have to work within its constraints / quirks. These things make it hard for a generic compiler to optimize for but far more interesting for an experienced developer. When you...