I did a little more looking and the only practical use is $F0 to pulse the reset line rather than setting it directly (and thus locking up the system forever). I’ll treat it as a reset. $F1 would pulse Gate A20 (which is a useless operation in a PC) and $F2 and $F3 pulse reserved bits.
> On May 29, 2019, at 3:16 AM, Mike Larkin <[email protected]> wrote: > We don't have very precise timing, so I'm not sure how you're going to get a > 6uS pulse. What does an attached device do with such a pulse in a normal > scenario?
