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ArnimS's Avatar
Posts: 1,107 | Thanked: 720 times | Joined on Mar 2007 @ Germany
#80
You can has dosbox on OS2008... just dpkg -i the deb from my site. Needs libsdl-net as usual.

I got my chinook sdk running and am trying to eke-out some more speed from dosbox right now.

Been testing a few 1988-1993 games with cpu=simple, frameskip 3, scaler=none, cycles adjusted during play (+/- buttons)

Test Drive II (ega/spkr) - ~5fps

Wing Commander (vga/sb16) - ~5fps but major music dropouts at std cycles, have to drop to ~600 cycles

Comanche (vga/sb16) - about ~1.8 fps without sound, ~1.2 fps with sound

Ultima 6 (ega/sb16) - about 4 fps, adlib sound problems above 900 cycles.

I'm also trying Doom -timedemo demo3 at fixed 2600 cycles, no sound but getting the same gametics reported despite widely varying speeds.

DosBox 0.72 (gregale) latest
1091 gametics in 9565 gametics = 3.99 fps @ 2600 cycles - but onscreen it looks to be about = ~2 fps, meaning doom's internal clock may not be accurate due to too high cycles(?).

DosBox 0.72 (chinook) gregale's ./configure and no cflags
1091 gametics in 9565 gametics = 3.99 fps @ 2600 cycles

DosBox 0.72 (chinook) new ./configure -mcpu=arm1136j-s -mfpu=vfp -mfloat-abi=softfp
1091 gametics in 9565 gametics = 3.99 fps @ 2600 cycles but actual fps is easily below 1 (WHAT??)
So i must be doing something very wrong with the new ./configure but i haven't discovered it yet. This project needs serious attention by a real ARM programmer.

edit ... found the problem (brand) new build runs wing commander at about 8 fps ... wooo...
grab the new build at http://pupnik.de/dosbox_N8x0.tgz let me know if it seems faster than the old one - ty

Last edited by ArnimS; 2008-01-21 at 23:00.
 

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