Reading VAX SID register on ultrix or 4.3bsd
Chris Torek
chris at mimsy.umd.edu
Sat Apr 23 08:28:25 AEST 1988
I was not railing *against* the `get interesting kernel variable'
syscalls, I was railing *for* them. There are too few. We could
use a get_cpu_type syscall, in particular for the C library routines
that use the fancy VAX instructions to do string operations. They
run overly slow on the MicroVAX, since this machine traps on `locc'
and `scanc' instructions and emulates them in the kernel.
It would be nice, though, if it did not take a horrendous number
of syscall table entries to describe all the interesting kernel
variables; I argued for a call of the form
get_kernel_variable(int variable_index)
I still think this should be done.
Chris
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