[Info-vax] $SETIMR granularity

[Bob Koehler]

In article <j8584h$6pi$1 at speranza.aioe.org>, Snowshoe <no at spam.please> writes:
> Does $SETIMR have the same (1/100 second) granularity on Itanium and 
> Alpha as it does on the VAX?  Or is it 1/1024 second due to the clock speed?
> 
> (if 1/100 second, how is this done, 1024 doesn't divide 100 evenly)

   I don't know the specifics of $SETIMR, but internally Alpha knows
   the clock chip is not a multiple of the VMS time least significant
   bit.  The clock slowly gets behind until it's a full tick behind
   and then the Alpha code inserts a "leap" tick.