Need help in accessing physical address in Unix

[Larry Campbell]

> 	Someone suggested the PHYS(2) system call for accessing physical
> addresses from user processes. This is a Uniplus 'feature', not a System
> V 'feature'. Don't expect to see it in a port done by someone other than
> Unisoft. (Mind you it is a neat idea, just right for mapping in such things
> as bit mapped graphics, device registers, floating point boards .....)
> 		Paul Campbell
> 		..!ucbvax!unisoft!paul
> 		..!houxj!fafnir!pc

Uh, VENIX also has a PHYS(2) call that seems to do the same thing.
-- 
Larry Campbell                                 The Boston Software Works, Inc.
ARPA: maynard.UUCP:campbell at harvard.ARPA       120 Fulton Street
UUCP: {harvard,cbosgd}!wjh12!maynard!campbell  Boston MA 02109