Need help in accessing physical address in Unix

jk jk at plx.UUCP
Fri Dec 13 03:43:00 AEST 1985


> 
> 	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

wrong paul, phys(2) was a V7 "feature" (and a bad one at that!).



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