Clarifies minor PIT comments
authorBarret Rhoden <brho@cs.berkeley.edu>
Mon, 9 Dec 2013 17:55:01 +0000 (09:55 -0800)
committerBarret Rhoden <brho@cs.berkeley.edu>
Thu, 16 Jan 2014 21:07:52 +0000 (13:07 -0800)
commit0c5f64371ec8d82e29f60b8235ea3991920a0402
tree1ed2ba830e715e2a58e6c97e5f406ab15062d169
parentaeff6123df2003ed43358232c1e47e007685e5fb
Clarifies minor PIT comments

We only ever use PIT timer 1, which has 0, 1, and 2 counters.  Some of
the comments made it harder to verify that.
kern/arch/x86/apic.c
kern/arch/x86/apic.h