Dereferencing NULL pointers - (nf)

Sat Dec 17 19:06:08 AEST 1983

#R:rlgvax:-142700:fortune:11600028:000:489
fortune!rpw3    Dec 17 00:25:00 1983

The Fortune 32:16 has has a segment-based MMU, and in user mode the
first location of the text-seg is 0, so deref'd NULL is whatever the
beginning of the text is (usually crt.0). But if the program is "split
I/D", i.e. shared text, the first location of the DATA seg is 0x200000,
which is amusing to some old programs.

Rob Warnock

UUCP:	{sri-unix,amd70,hpda,harpo,ihnp4,allegra}!fortune!rpw3
DDD:	(415)595-8444
USPS:	Fortune Systems Corp, 101 Twin Dolphins Drive, Redwood City, CA 94065