For i/o delays on x86, Linux uses a sequence of outp(0x80). 0x80 is usually unsed. One to three times should be quite sufficient.
Jan ex Roman wrote: > On 06 Jul 2007 17:04:19 -0500, Haudy Kazemi <[EMAIL PROTECTED]> wrote: >> On Jul 6 2007, Alex Roman wrote: >> I'd avoid straight loops...with those you run into processor speed >> issues...runs too fast on new CPUs, runs too slow on old hardware. Of >> course I guess you could calibrate some straight loops to the RTC, >> and then >> use the loops rather than polling the RTC periodically, but I don't >> think >> the extra level of complication would provide any real benefit. > > Yes, I am reluctant to use loops for that reason. > > I could definitely do a simple read RTC in a loop until the time > difference from when I started the loop is what I want it to be... > > I'll try to get that working, but I am open to other suggestions as well! > > > Thanks! > _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
