Hi,

This patch fixes some testsuite failures where differences in the size 
of long lead to differences in disassembly on arm-none-eabi. This patch 
leads to the same behaviour as 32-bit hosts -- top-bit-set constants are 
output as signed rather than unsigned integers.

OK to apply?

Cheers,

Julian

ChangeLog (opcodes):

     * arm-dis.c (print_insn_neon): Disassemble 32-bit immediates as
     signed on 64-bit hosts.