[ARC] Force the disassam to use the hexadecimal number for printing

Force printing of the short/signed values using hexadecimal
representation via disassembler option.

opcode/
2017-11-03  Claudiu Zissulescu  <claziss@synopsys.com>

        * arc-dis.c (print_hex): New variable.
        (parse_option): Check for hex option.
        (print_insn_arc): Use hexadecimal representation for short
        immediate values when requested.
        (print_arc_disassembler_options): Add hex option to the list.

binutils/
2017-11-03  Claudiu Zissulescu  <claziss@synopsys.com>

        * doc/binutils.texi (ARC): Update disassembler options.
        * testsuite/binutils-all/arc/hexprint.s: New file.
        * testsuite/binutils-all/arc/objdump.exp: Test hex printing feature.

1 files changed, 4 insertions, 0 deletions

diff --git a/binutils/doc/binutils.texi b/binutils/doc/binutils.texi
index ad924d8..03706db 100644
--- a/binutils/doc/binutils.texi
+++ b/binutils/doc/binutils.texi
@@ -2313,6 +2313,10 @@ special QuarkSE-EM instructions, @option{fpuda} selects the printing
 of double precision assist instructions, @option{fpus} selects the
 printing of FPU single precision FP instructions, while @option{fpud}
 selects the printing of FPU souble precision FP instructions.
+Additionally, one can choose to have all the immediates printed in
+hexadecimal using @option{hex}.  By default, the short immediates are
+printed using the decimal representation, while the long immediate
+values are printed as hexadecimal.
 
 @option{cpu=...} allows to enforce a particular ISA when disassembling
 instructions, overriding the @option{-m} value or whatever is in the ELF file.