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7.2 FPS Pocket Quake on new Xscale
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Jun 7, 2002 @ 8:09pmby entropy1980
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Jun 7, 2002 @ 8:29pmby R0B
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Jun 7, 2002 @ 8:48pmby entropy1980
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Jun 7, 2002 @ 8:56pmby jeffmd
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Jun 7, 2002 @ 9:00pmby ottoman
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Jun 7, 2002 @ 9:03pmby entropy1980
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Jun 7, 2002 @ 9:05pmby accolon
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Jun 7, 2002 @ 10:34pmby Dan East
I don't know what can be causing such poor performance. It has been said that the XScale doesn't have a floating point processor. When you build a Pocket PC app the floating point emulation code is included directly in the application. I am only guessing, but perhaps the floating point emulation library designed for ARM behaves poorly on XScale. Even if XScale (or any other Pocket PC) did have a processor supporting floating point, PQ would not make use of it, since the compiler integrated the floating point emulation into PQ when I built it. Further, perhaps ARM compiler optimizations actually hurt performance on XScale devices.
Dan East
Posted:
Jun 7, 2002 @ 10:37pmby Jadam
... its probally his GAPI, its compiled for the SA1110 suport chip LCD controller, but the XScales use new ones with 256kb Vram
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Jun 7, 2002 @ 11:27pmby Got KarmA?
Lol makes me happy I didn't just go out and buy one :-)
Posted:
Jun 7, 2002 @ 11:32pmby Dan East
A very, very small percentage of the CPU is used for blitting the frame out to the display. If I omit the display blit entirely PQ doesn't even pick up 1 additional FPS.
Dan East
Posted:
Jun 8, 2002 @ 1:54amby TechMage
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Jun 8, 2002 @ 2:48amby Robotbeat
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Jun 8, 2002 @ 2:49amby Robotbeat
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Jun 8, 2002 @ 4:18amby Robotbeat