binutils/opcodes/i386-dis.c

125 /* Flags for the prefixes for the current instruction.  See below.  */
126 static int prefixes;
147 /* Flags for prefixes which we somehow handled when printing the
346 #define v_mode 2  /* operand size depends on prefixes */
355 #define dq_mode 11 /* operand size depends on REX prefixes.  */
360 #define z_mode 16 /* non-quad operand size depends on prefixes */
3295   prefixes = 0;
3304 	/* REX prefixes family.  */
3327 	  prefixes |= PREFIX_REPZ;
3330 	  prefixes |= PREFIX_REPNZ;
3333 	  prefixes |= PREFIX_LOCK;
3336 	  prefixes |= PREFIX_CS;
3339 	  prefixes |= PREFIX_SS;
3342 	  prefixes |= PREFIX_DS;
3345 	  prefixes |= PREFIX_ES;
3348 	  prefixes |= PREFIX_FS;
3351 	  prefixes |= PREFIX_GS;
3354 	  prefixes |= PREFIX_DATA;
3357 	  prefixes |= PREFIX_ADDR;
3360 	  /* fwait is really an instruction.  If there are prefixes
3363 	  if (prefixes || rex)
3365 	      prefixes |= PREFIX_FWAIT;
3369 	  prefixes = PREFIX_FWAIT;
3413     /* REX prefixes family.  */
3472  *   (see topic "Redundant prefixes" in the "Differences from 8086"
3706   if (((prefixes & PREFIX_FWAIT)
3713 	 by other prefixes.  Print the first prefix.  */
3767   if (!uses_REPZ_prefix && (prefixes & PREFIX_REPZ))
3772   if (!uses_REPNZ_prefix && (prefixes & PREFIX_REPNZ))
3778   if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
3784   if (prefixes & PREFIX_ADDR)
3797   if (!uses_DATA_prefix && (prefixes & PREFIX_DATA))
3844 	      used_prefixes |= (prefixes & PREFIX_REPZ);
3845 	      if (prefixes & PREFIX_REPZ)
3851 		  used_prefixes |= (prefixes & PREFIX_REPNZ);
3852 		  if (prefixes & PREFIX_REPNZ)
3856 		      used_prefixes |= (prefixes & PREFIX_DATA);
3857 		      if (prefixes & PREFIX_DATA)
3887   /* See if any prefixes were not used.  If so, print the first one
3891   if ((prefixes & ~used_prefixes) != 0)
4405 	  if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
4411 	      used_prefixes |= (prefixes & PREFIX_DATA);
4426 	      used_prefixes |= (prefixes & PREFIX_DATA);
4442 	  used_prefixes |= (prefixes & PREFIX_ADDR);
4447 	  if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
4453 	      used_prefixes |= (prefixes & PREFIX_ADDR);
4464 	    used_prefixes |= (prefixes & PREFIX_DATA);
4469 	  if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
4470 	      || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
4472 	      used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
4475 	      if (prefixes & PREFIX_DS)
4509 	  if ((prefixes & PREFIX_FWAIT) == 0)
4523 	    used_prefixes |= (prefixes & PREFIX_DATA);
4537 	  if ((prefixes & PREFIX_DATA)
4551 	      used_prefixes |= (prefixes & PREFIX_DATA);
4579 	      used_prefixes |= (prefixes & PREFIX_DATA);
4599 	    used_prefixes |= (prefixes & PREFIX_DATA);
4624 		  used_prefixes |= (prefixes & PREFIX_DATA);
4629 	  if (prefixes & PREFIX_DATA)
4633 	  used_prefixes |= (prefixes & PREFIX_DATA);
4660 	    used_prefixes |= (prefixes & PREFIX_DATA);
4679   if (prefixes & PREFIX_CS)
4684   if (prefixes & PREFIX_DS)
4689   if (prefixes & PREFIX_SS)
4694   if (prefixes & PREFIX_ES)
4699   if (prefixes & PREFIX_FS)
4704   if (prefixes & PREFIX_GS)
4837 	  used_prefixes |= (prefixes & PREFIX_DATA);
4850       used_prefixes |= (prefixes & PREFIX_DATA);
4857 	used_prefixes |= (prefixes & PREFIX_DATA);
4877       used_prefixes |= (prefixes & PREFIX_DATA);
4937 	      used_prefixes |= (prefixes & PREFIX_DATA);
4954 	  used_prefixes |= (prefixes & PREFIX_DATA);
5097 	      if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5171 	  if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5222       used_prefixes |= (prefixes & PREFIX_DATA);
5363       used_prefixes |= (prefixes & PREFIX_DATA);
5410       used_prefixes |= (prefixes & PREFIX_DATA);
5418 	used_prefixes |= (prefixes & PREFIX_DATA);
5461       used_prefixes |= (prefixes & PREFIX_DATA);
5516       used_prefixes |= (prefixes & PREFIX_DATA);
5565       used_prefixes |= (prefixes & PREFIX_DATA);
5611 	  if ((prefixes & PREFIX_DATA) == 0)
5615       used_prefixes |= (prefixes & PREFIX_DATA);
5651   used_prefixes |= (prefixes & PREFIX_DATA);
5675       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5692       || (prefixes & PREFIX_ADDR))
5706       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5723   used_prefixes |= (prefixes & PREFIX_ADDR);
5783   if ((prefixes
5790     prefixes |= PREFIX_DS;
5804   else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
5846   used_prefixes |= (prefixes & PREFIX_DATA);
5847   if (prefixes & PREFIX_DATA)
5878 	  bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5879 	  used_prefixes |= (prefixes & PREFIX_DATA);
5888   used_prefixes |= (prefixes & PREFIX_DATA);
5889   if (prefixes & PREFIX_DATA)
5915 	  bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5916 	  used_prefixes |= (prefixes & PREFIX_DATA);
5925   used_prefixes |= (prefixes & PREFIX_DATA);
5933   used_prefixes |= (prefixes & PREFIX_DATA);
6010       else if (modrm.reg <= 3 && (prefixes & PREFIX_REPZ) != 0)
6039   if ((prefixes & PREFIX_DATA) != 0
6051   if ((prefixes & PREFIX_DATA) != 0
6172       used_prefixes |= (prefixes & PREFIX_REPZ);
6173       if (prefixes & PREFIX_REPZ)
6177 	  used_prefixes |= (prefixes & PREFIX_DATA);
6178 	  if (prefixes & PREFIX_DATA)
6182 	      used_prefixes |= (prefixes & PREFIX_REPNZ);
6183 	      if (prefixes & PREFIX_REPNZ)
6189       used_prefixes |= (prefixes & PREFIX_REPZ);
6234 	  && (prefixes & PREFIX_ADDR)
6256 	      if (!(prefixes & PREFIX_ADDR))
6306 	  && (prefixes & PREFIX_ADDR)
6370   if (!(prefixes & PREFIX_ADDR))
6423   /* Throw away prefixes and 1st. opcode byte.  */
6475       used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
6476       if (prefixes & PREFIX_DATA)
6478       else if (prefixes & PREFIX_REPZ)
6508   if (prefixes & PREFIX_REPZ)
6549       if ((prefixes & PREFIX_ADDR))
6620       used_prefixes |= (prefixes & PREFIX_DATA);
6651 	  else if ((prefixes & PREFIX_DATA))