Logical Bitwise Functions - AND, OR, XOR, NOT

[LCD]

In fact I wondered how they work with Fastcall.
Do Fastcall get the argument (sentin) as A (Accumulator) value if argument is ubyte, and HL if it is uinteger?
Why CPL and not NOT?
bANDHL doea a binary AND of L and A?
I'm a little bit confused...

And whai I mean: Boriels functions would support 1,2, and 4 byte wide variables, I hope at least

LCD