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Emulation - openMSX ARM without X-Window

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openMSX ARM without X-Window

manuel
msx guru
Berichten: 3447
Geplaatst: 21 Maart 2006, 14:52   
Is the sound really to slow, or does it just skip parts? AFAIK it should skip parts and keep in sync. But wouter probably knows more about this.

Note that although the codebase is the same, there are some assembly routines for x86 with MMX and/or MMXext. So, if that is available, those routines will be run and not the compiled C code It's only (AFAIK) for scalers though.

You could apt-get the sources, but compiling openMSX from the original sources would work just as easily. You can even use the debian/rules script to build the package with some modified compiler flags, e.g. This script is in CVS, but is not shipped in the release, by the way.
karloch

msx addict
Berichten: 416
Geplaatst: 22 Maart 2006, 01:15   
Quote:

Is the sound really to slow, or does it just skip parts? AFAIK it should skip parts and keep in sync. But wouter probably knows more about this.

Nope, it's not skipping parts. It sounds correctly, but just slower. I prefer that than skipping parts.

Quote:

Note that although the codebase is the same, there are some assembly routines for x86 with MMX and/or MMXext. So, if that is available, those routines will be run and not the compiled C code It's only (AFAIK) for scalers though.

Well... since it's ARM and not x86, it won't be of use, but no scaling needed on the Jornada 720

Quote:

You could apt-get the sources, but compiling openMSX from the original sources would work just as easily. You can even use the debian/rules script to build the package with some modified compiler flags, e.g. This script is in CVS, but is not shipped in the release, by the way.

I know that I can autobuild from Debian sources packages (I already did it in order to install qmail on my server), but I don't like to compile on the device since it uses a CF type 1 card as storage and these cards have a limited number of writes... Compiling too much stuff (and big stuff) will short the CF card life. If some day I get a Microdrive, I won't have to worry about that anymore.
jr
msx addict
Berichten: 310
Geplaatst: 22 Maart 2006, 18:44   
ummm... if you don't mind me asking, why aren't you running the emu under Windows? I thought the Jornada 720 comes with MS Windows and openMSX should run on it as well... :-) Just curious.

Chardson
msx lover
Berichten: 93
Geplaatst: 22 Maart 2006, 19:16   
Isn't there a way to cross-compile it on a desktop?
jr
msx addict
Berichten: 310
Geplaatst: 22 Maart 2006, 19:35   
For MS Windows, I think so. At least some years ago MS offered the Windows CE cross-compiler (for PC) for free on their website. For Linux, I'm pretty sure it's possible but I'll let someone wiser give the details
turbor
msx freak
Berichten: 177
Geplaatst: 22 Maart 2006, 23:10   
Quote:

Is the sound really to slow, or does it just skip parts? AFAIK it should skip parts and keep in sync. But wouter probably knows more about this.



No, you're mistaken here Quibus.
If it is SCC/PSG it should sound correct since we generate the waves correctly as requested by the SDL audio buffer. and not as most other emu's create an amount of samples depending on the emulated chips number of T-states.
if our wave creator get new settings to late (due to slow emulation) then the music will be slow but the tone should be correct.
This btw, was one of the main objectifs of our sound system when we started out .
karloch

msx addict
Berichten: 416
Geplaatst: 22 Maart 2006, 23:18   
Quote:

ummm... if you don't mind me asking, why aren't you running the emu under Windows? I thought the Jornada 720 comes with MS Windows and openMSX should run on it as well... :-) Just curious.

Yeah, the Jornada 720 comes with Microsoft Handheld PC 2000 (aka Windows CE 3.0). But as you may know, this OS is getting obsolete and unsupported. But 720degrees appeared as a Debian ARM distro to install in the device to save the day. Now the Jornada 720 users enjoy of a full updated and powerful operating system with thousand of apps ready to run. One of them is openMSX
 
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