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* Strange behaviour of disassembler for mips TX39
@ 2013-10-28  1:51 coderat
  0 siblings, 0 replies; only message in thread
From: coderat @ 2013-10-28  1:51 UTC (permalink / raw)
  To: binutils

Hi,

I found that TX39 disassembler always disassembles "jalx" instruction, but TX39 processor doesn't have such according to specification from Toshiba. But objdump clearly produce following code:

bfc00da0:       77f00c7d        jalx    0xbfc031f5

This seems to be wanted behaviour? In source code of binutils, I see a comment in opcodes/mips-dis.c in function print_insn_mips ():
	      /* We always allow to disassemble the jalx instruction.  */

But what sense does it make if this instruction is not supported by r3900 mips variant ?

Best regards,
coderat

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2013-10-28  1:51 Strange behaviour of disassembler for mips TX39 coderat

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