Date   : Thu, 10 May 1984 13:41:50-PDT (Thu)
From   : hplabs!sdcrdcf!sdcsvax!sdccsu3!loral!simard@Ucb-Vax.ARPA
Subject: Re: BIOS Techniques, a question (more).

	A note of caution re my last discussion: if SELDSK checks
	for disk type (?S/?D), it should do so only when there is
	a real chance the disk has been changed.  Many programs
	rapidly bounce from one logical disk to another (I have
	been known to assemble long source files from one disk
	for source, another for object and still another for  listing).
	The number of unneccessary type checks in this case would be
	staggering.