[colorforth] Port 0e1h?
- Subject: [colorforth] Port 0e1h?
- From: Mark Slicker <maslicke@xxxxxxxxxxx>
- Date: Wed, 3 Jul 2002 20:56:25 -0400 (EDT)
Don't know if this helps any, but I noticed my bios does something similar
except with port 0xeb. Also here is what I found in Ralph Brown's
Interrupt list, for port 0xeb :
PORT 00EB - DUMMY PORT FOR DELAY???
Note: on a number of machines, the BIOS appears to write a copy of any
data sent to numerous other ports to this port as well; it seems
to be a dummy port used for short delays between writes to other
ports (used instead of JMP $+2, which no longer delays on
Pentium+)
SeeAlso: PORT 00ED"DUMMY"
Without a concrete understanding, a delay is probably the best guess at
what e1 does.
Mark
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