Mark Pizzolato 4bbc3dfd1c TIMER: Add SET CLOCK NOCALIBRATE mode ...

NOCALIBRATE mode allows all activity of a simulator run to occur with
precisely consistent event timing.  In this mode, every clock tick takes
precisely the same number of instructions/cycles.  Likewise, the polling
activities for MUX or other poll oriented devices occurs after precisely
the same number of instructions/cycles executed.  As a consequence of
this mode, no effort to align simulated clock ticks (and simulated access
to wall clock time) is made.

This mode might be useful for running diagnostics which expect a
particular relationship between perceived wall clock and instruction
times.  It might also be useful for running test scripts which may want
to compare output of previous executions to to current execution or
to compare execution on arbitrarily different host computers.

In NOCALIBRATE mode, the operator gets to specify the pseudo
execution rate along with the base wall clock time that access to
pseudo wall clock accesses returns.

2023-01-06 09:49:31 -10:00

151 KiB

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