I am trying to use the bitlshift command to shift bits from a hexidecimal representation.

The following gives me what I expect

hexval = 0x00F00000
newhexval = bitlshift(hexval,4)
newhexval = transform(newhexval,"@0")

now newhexval = 0x0F000000

however this does not work

hexval = 0x0F000000
newhexval = bitlshift(hexval,4)
newhexval = transform(newhexval,"@0")

I expected newhexval to be 0xF0000000 but it ends up being a negative number. Is there something I am missing or not understanding?

Thanks.
David