[PATCH v1] Microblaze: Widen mask used in opcodes/microblaze-dis.c

[Gopi Kumar Bulusu]

namaskaram,

Instead of using 0xFFFF0000,
or with (~0xFFFF) to sign extend negative 16-bit value
and with (~0xFFFF) to extract higher order address bits

While testing gdbserver support this was found to cause issues with
software single stepping due to incorrect target address computation in gdb.

This is a preparatory patch ahead of gdbserver support for Microblaze

Files changed:
opcodes/ChangeLog
opcodes/microblaze-dis.c

Build/Test:
Built for baremetal (microblazeel-elf) target
Tested with gas/ld/binutils tests (make check)
No regressions found

dhanyavadam
gopi
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