Possible Ports For The Gpx2

[Alpha2]

I thought the wording was more that the second arm or the 2D acc chip were capable of Floating point, not somuch that there is a 100% dedicated chip just more of one that COULD be used for it if the need arose.

Feel free to correct me on this of course if I'm wrong.

 

[woogal]

Q2.... Who knows, it ran on a 166mhz machine at a playable frame rate and that was with the overhead of windows. Q2 is a lot harder to play without mouselook though

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I've seen Q2 benchmarks and on a 200mhz pentium (which has an fpu - don't forget this) with a very basic graphics card I think it was around 9 frames per second (only slightly higher than gpQuake gets at 160mhz). If the X2 does have an fpu (if - this has been kind of confirmed by the same people who confirmed that the X2 will have an analogue stick then changed their minds the next day ) then those would be the kind of frame rates we might expect to see, if it doesn't then who knows how slow it may run. It could ever run better than 9fps without an fpu because you can't compare two completely different cpu's (arm and pentium) on mhz alone. But at the end of the day there's very little point speculating how something may run on hardware that doesn't currently exist .

 

[no_skill]

dito.

 

[hando]

[...] Otherwise I personally will be waiting till someone ports HUGO. I admit it is a shame as it was a particularly good emulator. Although very little has changed in a long time, perhaps due to it being closed source.

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hugo = GPEngine + some extra stuff Black had or still has (don't know) good relations with Zeograd, original author of HUGO, so GPEngine was mostly based on HUGO sources. This is why there was e.g. no digital sound - because there was no implementation of it in Hugo as well.
But actually gpengine sources were lost some time ago due hdd crash as I remember so it's rather a close chapter.

 

[LDChen]

I don't know who told this sentence first, but if they are really using the MMSP2, then the GPX2 doesn't have the Vector Floating Point Unit coprocessor.
It should be optionally available on ARM10 and ARM11, but not on processors based on ARMV4 (which the ARM9x0T are).

Sincerely,

LDChen

 

[woogal]

I don't know who told this sentence first, but if they are really using the MMSP2, then the GPX2 doesn't have the Vector Floating Point Unit coprocessor.
It should be optionally available on ARM10 and ARM11, but not on processors based on ARMV4 (which the ARM9x0T are).

Sincerely,

LDChen

​

Yep, exactly, and that's why I'm ignoring anything I read about the X2 and just waiting until I have the hardware in my hands . I did however read somewhere that the arm940t can support an fpu coprocessor, but I've seen nothing to suggest that the MMSP2 comes with one included, and anyway the 940t is supposed to be acting as a coprocessor to the 920t so is it even possible that an fpu could be added in this case? (I know bugger all about how hardware is built). My gut feeling is there will be no fpu but I'd really like to be proved wrong .

 

[White Demon]

The dreamcast has 200Mhz and 16Mb Ram.

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The Dreamcast has a 300mHz CPU actually.

Back on topic: there is this little known game available for Linux called Koules. When I first saw that game I fell in love with it's simple concept (knock little molecules off the screen and collect any power-ups they drop) and would go so far as to sell my soul (well maybe not that far, but pretty damn close) to anyone who would make a port for the GPx2. It would be worth having for a port of that game alone.

Anyone who has Linux and hasn't played Koules: go hunt it down. It's every bit as addictive as Tetris and Lemmings were.

EDIT: Koules homepage

 

[Rockin'-B]

The Dreamcast has a 300mHz CPU actually.

200 MHz CPU with 300 MIPS power

 

[efegea]

The dreamcast has 200Mhz and 16Mb Ram.

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The Dreamcast has a 300mHz CPU actually.

dreamcast~# cat /proc/cpuinfo
cpu family     : SH-4
cache size     : 8K-byte/16K-byte
bogomips       : 199.47

Machine: dreamcast
CPU clock:  200.00Mhz
Bus clock:  100.00MHz
Peripheral module clock: 50.00MHz
dreamcast:~#

 

[Yuglooc]

I've searched the Gpx2 site and all I found about floating points where

http://www.gpx2.com/support/support_sugest...&direc=floating

" Hello,^^
Thank you for your interest in gpx2.
Software support Co-processor with floating poing operations.
Thank you ^^"

 

[lux]

+ Linux 2

 

[Jarska333]

Pardon?