I need a sanity check on WDT wake-up from sleep. I thought I understand
it, but MPSIM is giving different results.

I'm working with a 12F675. I want it to power down via the sleep 
instruction, but periodically wake up, perform some work, and then go 
back to sleep. The exact timing between wake-ups is not critical.

I interpret table 10-6 in conjunction with the STATUS register to say if
WDT occurs after the SLEEP instruction was issued, then both /TO and /PD 
bits should be cleared (***). In the simulator, the /TO bit is actually 
set after the WDT, not cleared as I interpreted from the datasheet.

Is this a problem with the simulator, or am I doing something 
fundamentally wrong? To summarize: issue SLEEP command, let the WDT bring
the device out of sleep, perform some work, and repeat.

Thanks for any insight,
Phil Eisermann.

(***) what's the convention for writing active-low signals in a text 
editor? I used "/TO" to indicate "NOT TO", but have also seen !TO used.
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