sh3-dsp instruction "movs.l Ds,@-As" assembles wrong

[Greg Ungerer]

Hi All,

I have found a problem with gas assembling wrong the
sh3 (dsp) instruction "movs.l Ds,@-As".

For example:

    movs.l  a1, @-r2

assembles to:

    164e:       5c f6           movs.l  a1,@-r6

(as dumped by objdump).

But the 0xf65c is the wrong opcode. It should be 0xf653.
I am using the HITACHI e602096_sh3pm.pdf doco to verify
the correct opcodes. And I have verified on real hardware
that the doco and 0xf653 is correct.

(Objdump even gets the dis-assemble wrong too :-)

I generated this on a 001117 snaphot of binutils configured
as target sh3-linux.

But I can see from the CVS at http://sources.redhat.com/binutils/
that the file opcodes/sh-opc.h still has the opcodes wrong.
I think some of the other "movs" opcodes are wrong here too.

Regards
Greg


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