NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

jtk
Tue Jun  3 20:34:47 PDT 1997
Update of /cvsroot/src/sys/arch/i386/i386
In directory netbsd1:/var/slash-tmp/cvs-serv29735

Modified Files:
        apm.c 
Log Message:
1) When we cannot complete our attachment, don't just return 0 but also
disconnect from the BIOS

2) when text segment as claimed by BIOS is out of sensible range, punt
completely rather than trying to shrink it to fit the ISA hole.  Some
BIOSes would crash with the previous behavior.  Some won't have a
working APM with the new behavior, but their BIOSes are broken.

Suggested by Chris Demetriou, with very minor tweaks by me.