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From: Alan Cox <>
To: "Tolentino, Matthew E" <>
Cc: Andi Kleen <>, Greg Stark <>,
	Martin Pool <>,
	Linux Kernel Mailing List <>
Subject: RE: KDB in the mainstream 2.4.x kernels?
Date: 28 Aug 2003 21:24:39 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Iau, 2003-08-28 at 18:08, Tolentino, Matthew E wrote:
> > I've seen workable non forth versions of the proposal yes. It isnt 
> > actually that hard to do for most video cards 
> Interesting.  So did the interpreted forth (or other) program then interact with the VGA BIOS or was it more generic? 

It consisted simply of a list of in/out values. Thats sufficient for
most cards it turned out. It expected the X server to dump the sequence
of values to the kernel.

A BIOS32/ACPI/whatever is currently trendy service to save/restore video
states would actually be a real help to a lot of things. I guess the
perfect would API would support something like

    SetMode (some properties)
    LoadColor() [for 8bit modes]

ie roughly what vesa bios provides. Given the cost of executing a
virtual machine like ACPI its less clear if cards could describe
basic acceleration this way, at least if it was something like ACPI
or forth which is hard to compile. A bytecode description that can
be turned into native code obviously has different properties.

  reply	other threads:[~2003-08-28 20:27 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-28 17:08 KDB in the mainstream 2.4.x kernels? Tolentino, Matthew E
2003-08-28 20:24 ` Alan Cox [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-09-02 20:40 Tolentino, Matthew E
     [not found] <>
2003-07-18 20:43 ` Andi Kleen
2003-07-19  0:31   ` linas
2003-07-19  0:57     ` Andi Kleen
2003-07-20 12:55   ` Keith Owens
2003-07-20 13:31     ` David S. Miller
2003-07-20 22:27       ` Keith Owens
2003-07-21 15:06     ` Andi Kleen
2003-07-29 19:44   ` Robin Holt
2003-08-13  4:40   ` Martin Pool
2003-08-13 11:04     ` Andi Kleen
2003-08-25 12:16       ` Greg Stark
2003-08-25 16:23         ` Andi Kleen
2003-08-26 13:39           ` Greg Stark
2003-08-27 13:49           ` Alan Cox
2003-08-30 10:35             ` Pavel Machek
2003-07-18 20:06 linas

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