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

From: David Golden (david.golden@oceanfree.net)
Date: Thu Mar 14 2002 - 19:12:42 EST


On Thursday 14 March 2002 22:55, Alan Cox wrote:
>
> 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... !
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