[PATCH] ARC handling of LD and ST instructions

[Nick Clifton]

Hi Stacey,

> This patch does the following things:
> 
> - Cleans up handling of the 'c' register in the ST opcode by removing
>   overloading of that token during parsing.
> - Adds (missing) handling of:
>       ld reg, [val]
>   where val is shimm, rather than limm.
>   EVEN shimm values are encoded as:       ld reg, [val/2, val/2]
>   ODD shimm values are encoded as a 64b:  ld reg, [limm]
> 
> Note: my version 1.1.1.1 corresponds to the binutils-010604 snapshot.
> 
> Let me know if there are any problems with this patch.

There are a couple of problems with this patch:

  1. No ChangeLog entry.  [Please submit this as plain next, not a
     context diff].

  2. GNU Formatting style not followed in the comments.  [Treat them
     as real sentances, start with a capital letter.  End with a full
     stop followed by two spaces].

and the one that actually matters:

  3. The GAS ARC testsuite fails with your patch applied:

     .../gas/testsuite/gas/arc/st.s: Assembler messages:
     .../gas/testsuite/gas/arc/st.s:17: Warning: operand out of range (80 not between -32 and 31)
     .../gas/testsuite/gas/arc/st.s:17: Error: unresolved expression that must be resolved
     FAIL: gas/arc/st

If you can fix these problems I will be happy to review your patch
again.

Cheers
        Nick