The RESET affects the SFR, I/O, and only a few locations in the 00:7F internal ram space where most processing REGISTERS are. PC, SP and PSW are changes there.

So if your mean to protect your R0-R7 registers for all four potential banks, you can do so as long as your powerup code checks to see it a watchdog recovery needs to be performed before a total cold boot.

A danger to look out for in recovering this register block, is the SP reseting to 07h. Make sure you relocate it before you involve any stack functions.

-Jay C. Box