node/lib/metasm/metasm/cpu/x86_64/main.rb
def val_rex
			if @sz == 8 and @val >= 16		# ah, bh, ch, dh: rex forbidden
			elsif @val >= 16			# rip
			else @val >> 3				# others
			end
		end
# returns the part of @val to encode in an instruction's rex prefix
returns the part of @val to encode in an instruction's rex prefix
returns the part of @val to encode in an instruction ' s rex prefix
def val_rex
			if @sz == 8 and @val >= 16		
			elsif @val >= 16			
			else @val >> 3				
			end
		end
def val_rex if @sz == 8 and @val >= 16 elsif @val >= 16 else @val >> 3 end end
returns the part of @val to encode in an instruction's rex prefix
returns the part of @val to encode in an instruction ' s rex prefix
# ah, bh, ch, dh: rex forbidden # rip # others