How do condition codes work?

Hello,

I'm looking at the condition codes. However, I'm not entirely sure how they work. I've looked at the online manual on this site (e.g.http://www.keil.com/support/man/docs/armasm/armasm_dom1359731161338.htm)
but am still uncertain.

What exactly does something like

BGE NV + N'V' signed >=
mean?

Thank you

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