Operating Systems > Not Quite Mainstream OSes

Another ASM written OS

<< < (6/9) > >>

TheQuirk:
I'm kinda embarassed of what I said now that I look back.

Anyway, yeah. I doubt it will make it "big," but it's still kinda neat.

hm_murdock:
yeah, it is... it's a great way to learn, and you can create some very new, inventive things... but ASM OSes aren't good at all for "real world" uers. too limited. they're great for embedded use, though.

Aloone_Jonez:
This is cool you people are far more cleaver than I will ever be.
 
I've just tried this, and it's fast, up to 1024x768 16bpp or 800x600 24bpp on my system, it slows down beyond these resolutions.

The main reason for this appears to be that you've used double buffer buffering, you should use page switching, it uses far less system memory, and twice as much video memory, it's also a hell of a lot faster.

I have quickly scanned through the source code, I can already see one easy peasy optimisation.
Some ware, and I forget exactly, you coded something like;
Shl AX, 3
Shr AX, 1
You should have just coded;
Shl AX, 2

There are probably many more too, I'm still pretty new to assembly code.

It is still faster than Linux even when I run it at 640x480 8bpp.

If you could do something worth while, and write a generic Linux video driver this fast it would be most appreciated.

[ July 14, 2004: Message edited by: Aloone ]

WMD:

quote:Originally posted by Aloone:
If you could do something worth while, and write a generic Linux video driver this fast it would be most appreciated.
--- End quote ---


Heh, that still pissing you off, huh?  ;)

Aloone_Jonez:
Yes, I would really love to run Linux, if my hardware would run it well. I could also moan on about my printer/scanner and digital camera, I have looked for drivers too.  :(

[ July 15, 2004: Message edited by: Aloone ]

Navigation

[0] Message Index

[#] Next page

[*] Previous page