gbadev : Message: Re: [gbadev] Floating point speed?

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Message #10717 of 15019 |

Re: [gbadev] Floating point speed?

>I'm using it for an high precision non real-time 3d renderer.

And this is better done on the GBA than the PC because...?

Stupid like a fox!
Look ma, I'm an artist: http://aaronstj.deviantart.com

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Mon Apr 1, 2002 4:11 am

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"Aaron St.John" <aaronstj@...>

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Message #10717 of 15019 |

Expand Messages	Author	Sort by Date
Hi Does anyone have any approximate floating point calculation speeds for operators such as +, * and / in cpu cycles? Thanks Mat...	Mat matth@...	Mar 30, 2002 12:05 pm
OK, CPU cycles may be a bit too much so what about in comparison to their integer equivalents? Thanks Mat ... From: Mat <matth@...> To:...	Mat matth@...	Mar 30, 2002 9:27 pm
YMMV: I'm a newbie at the ARM. I don't see floating point math in the ARM instruction set, so doing true floating point is going to depend on the library you...	Evan Robinson evan_robinson	Mar 31, 2002 10:09 pm
Hi Evan I know that the ARM7TDMI does not support fp instructions. I am just wondering if anyone had done any experimentation; I was trying to save myself the...	Mat matth@...	Apr 1, 2002 12:08 am
I'd suggest that you encapsulate your math data types so that you can go either way. But at this point, I bet the 64bit fixed point will be substantially...	Evan Robinson evan_robinson	Apr 1, 2002 1:12 am
Hi, I bet that most application on the GBA should be satisfied with a 32 Bit fixed point calculation. It is just a matter of trade off for the precision you...	Romain PIQUOIS rpiquois@...	Apr 1, 2002 4:06 am
I'm using it for an high precision non real-time 3d renderer. Mat ... From: Evan Robinson <erobinson@...> To: <gbadev@yahoogroups.com> Sent: Monday,...	Mat matth@...	Apr 1, 2002 4:08 am
... And this is better done on the GBA than the PC because...? Stupid like a fox! Look ma, I'm an artist: http://aaronstj.deviantart.com ...	Aaron St.John aaronstj@...	Apr 1, 2002 1:07 pm
If I wanted a non real-time renderer on PC, I wouldn't be implementing it on the GBA would I? I want this to render static screens on the GBA for game story...	Mat matth@...	Apr 1, 2002 1:48 pm
On the PC, use floating point (it's often as fast or faster than fixed point, of course depending on what you're doing). On the GBA, use fixed point. that's...	Henrik Rydgard meloditronic@...	Apr 2, 2002 8:06 am

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