On Thursday, January 10, 2019 at 18:56, Robert W.Mills wrote:
> Is it possible to have a built-in variable, possibly called something
> like %DATE_YY_DIF%, that holds the difference between %DATE_19XX_YY% and
> the actual year as held by the host operating system?
You can do this yourself with simulator commands:
sim> set env -a DATE_YY_DIF=DATE_YYYY-1900-DATE_19XX_YY
sim> echo %DATE_YY_DIF%
28
> %DATE_YY_DIF% could then be used to translate dates from internal
> (simulator) to external (user) by adding the value to the internal
> year.
As Paul pointed out, the tricky part is determining when a given set of
output digits represents a year AND that year is supposed to be the current
year (rather than actually referring to 1991, e.g.). You wouldn't want a
file that actually was modified last in 1991 -- say, from a backup tape
image -- to be indicated that it was modified in 2019. So I don't see any
easy solution to this.
> David, is it possible to set a JCW with this value when a session
> starts?
Sure, you could add something like this:
go until "LOGON FOR: OPERATOR.SYS,OPERATOR ON LDEV #20"
go until "\r\n:" ; send "SETJCW DIFF=%DATE_YYYY%-19%DATE_19XX_YY%\r"
...just before the final "go" in your "mpe-auto.sim" startup file. The
first "go until" ensures that the second "go until" stops at the CI prompt
and not when the system prints ":HELLO OPERATOR.SYS;HIPRI" as part of the
automatic operator logon.
-- Dave
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