binutils-2.17/opcodes/i386-dis.c

135 /* Flags for the prefixes for the current instruction.  See below.  */
136 static int prefixes;
158 /* Flags for prefixes which we somehow handled when printing the
350 #define v_mode 2  /* operand size depends on prefixes */
359 #define dq_mode 11 /* operand size depends on REX prefixes.  */
2348   prefixes = 0;
2357 	/* REX prefixes family.  */
2380 	  prefixes |= PREFIX_REPZ;
2383 	  prefixes |= PREFIX_REPNZ;
2386 	  prefixes |= PREFIX_LOCK;
2389 	  prefixes |= PREFIX_CS;
2392 	  prefixes |= PREFIX_SS;
2395 	  prefixes |= PREFIX_DS;
2398 	  prefixes |= PREFIX_ES;
2401 	  prefixes |= PREFIX_FS;
2404 	  prefixes |= PREFIX_GS;
2407 	  prefixes |= PREFIX_DATA;
2410 	  prefixes |= PREFIX_ADDR;
2413 	  /* fwait is really an instruction.  If there are prefixes
2416 	  if (prefixes || rex)
2418 	      prefixes |= PREFIX_FWAIT;
2422 	  prefixes = PREFIX_FWAIT;
2446     /* REX prefixes family.  */
2521  *   (see topic "Redundant prefixes" in the "Differences from 8086"
2723   if (((prefixes & PREFIX_FWAIT)
2730 	 by other prefixes.  Print the first prefix.  */
2755   if (!uses_SSE_prefix && (prefixes & PREFIX_REPZ))
2760   if (!uses_SSE_prefix && (prefixes & PREFIX_REPNZ))
2765   if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
2771   if (prefixes & PREFIX_ADDR)
2784   if (!uses_SSE_prefix && (prefixes & PREFIX_DATA))
2832 	      used_prefixes |= (prefixes & PREFIX_REPZ);
2833 	      if (prefixes & PREFIX_REPZ)
2837 		  used_prefixes |= (prefixes & PREFIX_DATA);
2838 		  if (prefixes & PREFIX_DATA)
2842 		      used_prefixes |= (prefixes & PREFIX_REPNZ);
2843 		      if (prefixes & PREFIX_REPNZ)
2880   /* See if any prefixes were not used.  If so, print the first one
2884   if ((prefixes & ~used_prefixes) != 0)
3404 	  if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
3410 	      used_prefixes |= (prefixes & PREFIX_DATA);
3432 	  used_prefixes |= (prefixes & PREFIX_ADDR);
3437 	  if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
3443 	      used_prefixes |= (prefixes & PREFIX_ADDR);
3449 	  if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
3450 	      || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
3452 	      used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
3455 	      if (prefixes & PREFIX_DS)
3482 	  if ((prefixes & PREFIX_FWAIT) == 0)
3506 	  if ((prefixes & PREFIX_DATA)
3520 	      used_prefixes |= (prefixes & PREFIX_DATA);
3548 	      used_prefixes |= (prefixes & PREFIX_DATA);
3581 	    used_prefixes |= (prefixes & PREFIX_DATA);
3606 		  used_prefixes |= (prefixes & PREFIX_DATA);
3611 	  if (prefixes & PREFIX_DATA)
3615 	  used_prefixes |= (prefixes & PREFIX_DATA);
3654 	    used_prefixes |= (prefixes & PREFIX_DATA);
3673   if (prefixes & PREFIX_CS)
3678   if (prefixes & PREFIX_DS)
3683   if (prefixes & PREFIX_SS)
3688   if (prefixes & PREFIX_ES)
3693   if (prefixes & PREFIX_FS)
3698   if (prefixes & PREFIX_GS)
3786 	  used_prefixes |= (prefixes & PREFIX_DATA);
3799       used_prefixes |= (prefixes & PREFIX_DATA);
3818       used_prefixes |= (prefixes & PREFIX_DATA);
3875 	      used_prefixes |= (prefixes & PREFIX_DATA);
3890 	  used_prefixes |= (prefixes & PREFIX_DATA);
4022 	      if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4095 	  if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4144       used_prefixes |= (prefixes & PREFIX_DATA);
4291       used_prefixes |= (prefixes & PREFIX_DATA);
4338       used_prefixes |= (prefixes & PREFIX_DATA);
4381       used_prefixes |= (prefixes & PREFIX_DATA);
4436       used_prefixes |= (prefixes & PREFIX_DATA);
4485       used_prefixes |= (prefixes & PREFIX_DATA);
4560   used_prefixes |= (prefixes & PREFIX_DATA);
4584       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4614       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4631   used_prefixes |= (prefixes & PREFIX_ADDR);
4665   if ((prefixes
4672     prefixes |= PREFIX_DS;
4686   else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
4728   used_prefixes |= (prefixes & PREFIX_DATA);
4729   if (prefixes & PREFIX_DATA)
4760 	  bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
4761 	  used_prefixes |= (prefixes & PREFIX_DATA);
4770   used_prefixes |= (prefixes & PREFIX_DATA);
4771   if (prefixes & PREFIX_DATA)
4793 	  switch (prefixes & (PREFIX_DATA|PREFIX_REPZ|PREFIX_REPNZ))
4878   if (prefixes & PREFIX_REPZ)
4927   if (prefixes & PREFIX_REPNZ)
4940   if (prefixes & PREFIX_DATA)
4978   if (prefixes == PREFIX_REPZ)
5096       used_prefixes |= (prefixes & PREFIX_REPZ);
5097       if (prefixes & PREFIX_REPZ)
5101 	  used_prefixes |= (prefixes & PREFIX_DATA);
5102 	  if (prefixes & PREFIX_DATA)
5106 	      used_prefixes |= (prefixes & PREFIX_REPNZ);
5107 	      if (prefixes & PREFIX_REPNZ)
5113       used_prefixes |= (prefixes & PREFIX_REPZ);
5159 	  && (prefixes & PREFIX_ADDR)
5181 	      if (!(prefixes & PREFIX_ADDR))
5220     (prefixes & (PREFIX_REPZ|PREFIX_REPNZ|PREFIX_DATA)) == 0)
5232 	  && (prefixes & PREFIX_ADDR)
5310   if (!(prefixes & PREFIX_ADDR))
5341   used_prefixes |= (prefixes & (PREFIX_REPZ | PREFIX_REPNZ));
5344       if (prefixes & PREFIX_REPZ)
5354   if (prefixes & PREFIX_REPZ)
5378   else if (prefixes & PREFIX_REPNZ)
5435   /* Throw away prefixes and 1st. opcode byte.  */
5456       if (prefixes & PREFIX_DATA)
5529       used_prefixes |= (prefixes & PREFIX_REPZ);
5530       if (prefixes & PREFIX_REPZ)
5543       used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
5544       if (prefixes & PREFIX_DATA)
5546       else if (prefixes & PREFIX_REPZ)
5559       used_prefixes |= (prefixes & PREFIX_REPZ);
5560       if (prefixes & PREFIX_REPZ)
5580   if (prefixes & PREFIX_REPZ)
5621       if ((prefixes & PREFIX_ADDR))
5725    used_prefixes |= (prefixes & PREFIX_DATA);
5747   used_prefixes |= (prefixes & PREFIX_DATA);
5755   if (prefixes & PREFIX_DATA)