sethi and 64-bit constants

[raymond.meyer%rambler.ru@localhost]

Say I have a 64-bit pointer, I would like to load this address into a 
register. Sparc sethi instruction has space for 22-bit constants, so how can 
I use it to load 64-bit data?

As far as I understand, given a 64-bit register 'reg'

sethi const22, reg

will set bits 0-9 and 32-63 to zero
and set bits 10-31 to const22

So how can I use other instructions (or, xor) to load a 64-bit constant?

Also, if it takes 2 or 3 sparc instructions simply to load a 64-bit data, 
doesn't this mean that 64-bit arithmetic is pretty inefficient?