Re: IO delay, port 0x80, and BIOS POST codes

From: Pavel Machek (pavel@suse.cz)
Date: Tue Mar 19 2002 - 09:25:24 EST


Hi!
> > We've got one. Its 0x80. It works everywhere with only marginal non
> > problematic side effects
>
> I've always liked POST cards. They could hypothetically be useful
> for kernel development,too - who hasn't wanted a low-level
> single-asm-instruction status output from a running system at one time or
> another , independent of any other output mechanisms?
>
> OK it's a single byte, but it's still nice... That's two whole hex digits!
> DE... AD... BE... EF... !

Use 0x378 for that, works equally well.
                                                                Pavel

-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.

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