> 1. I have been trying to learn assembler and have run across a line in a program I don't understand.
> 
> BCF  OPTION_REG ^  0X080, 7
> 
> What does the caret indicate?
> 
> BCF - bit clear bit,  destination OPTION_REG,   ^ ???,  0x080 Contents,  7  ???

The carrot represents the XOR (exclusive or) operator. This was taken
from C syntax.
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D. Jay Newman           ! _Linux Robotics: Building Smarter Robots_
jay@sprucegrove.com     ! To be released soon to unsuspecting bookstores
http://enerd.ws/robots/ ! everywhere.
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