Where are CPU control Registers defined?

[mron]

I'm trying to find an SMCR, I think it's a Sleep Management Control Register. I want to put the spark to sleep, then wake with the watchdog timer. I'm using the "nightingale.ino" as a starting place. The tiny85 docs refer to SM bits in a control register, I'm not sure which register it is and how to set/clear it.

[mron]

Got it working, There is no SMCR, There's a WDTCR. I changed a couple things and it works.