NetTime and daylight savings

Just keep increasing R0 b27-31 until an error is returned?

Actually, I think I’m changing my mind on that having now tried it out. The problem is that with an old territory module (which doesn’t look at the value of R0 it is passed) you never get an error back – so the loop exit has to either be an error or a duplicate set of results. All a bit messy.

So, I think it’s time to wheel out a magic value in R4.

SWI Territory_ReadTimeZones (&4304A)

=> R0 = territory number or -1 to use the current one
   R1 = timezone within territory to lookup
   R4 = magic number to enable use of R1
<= R0 = name of standard time
   R1 = name of summer time
   R2 = signed offset of standard time from UTC in cs
   R3 = signed offset of summer time from UTC in cs
   R4 = 0 (or unchanged if territory doesn't understand the extended API)