objdump fails for ColdFire

Peter Barada peter@the-baradas.com
Sat May 8 15:40:00 GMT 2004


The simple testfile:

    .text
    move.l #1234,%d0

Assembles correctly, and disassemble to to followign for the default
m68k:

00000000 <.text>:
   0:	203c 0000 04d2 	movel #1234,%d0

But for coldfire '-mm68k:5200' it comes out as:

00000000 <.text>:
   0:	203c           	020074
   2:	0000           	00
   4:	Address 0x6 is out of bounds.


I think this is caused by the disassembler picking only *one* entry
out of the table and then checking the if the args match the
patterns:

{"movel",	one(0020000),	one(0170000), "ms%d", mcf },
{"movel",	one(0020000),	one(0170000), "nspd", mcf },
{"movel",	one(0020000),	one(0170000), "olmd", mcf },

Note that the mask and bits are the same for each pattern, its down to
the args to determine which form is valid.  

To fix this I'm thinking of looping over the table for each match of
the masked opcode and if the args match, accept it.

COmments?

-- 
Peter Barada
peter@the-baradas.com



More information about the Binutils mailing list