binutils/opcodes/i386-dis.c

124 /* Flags for the prefixes for the current instruction.  See below.  */
125 static int prefixes;
146 /* Flags for prefixes which we somehow handled when printing the
344 #define v_mode 2  /* operand size depends on prefixes */
353 #define dq_mode 11 /* operand size depends on REX prefixes.  */
358 #define z_mode 16 /* non-quad operand size depends on prefixes */
3293   prefixes = 0;
3302 	/* REX prefixes family.  */
3325 	  prefixes |= PREFIX_REPZ;
3328 	  prefixes |= PREFIX_REPNZ;
3331 	  prefixes |= PREFIX_LOCK;
3334 	  prefixes |= PREFIX_CS;
3337 	  prefixes |= PREFIX_SS;
3340 	  prefixes |= PREFIX_DS;
3343 	  prefixes |= PREFIX_ES;
3346 	  prefixes |= PREFIX_FS;
3349 	  prefixes |= PREFIX_GS;
3352 	  prefixes |= PREFIX_DATA;
3355 	  prefixes |= PREFIX_ADDR;
3358 	  /* fwait is really an instruction.  If there are prefixes
3361 	  if (prefixes || rex)
3363 	      prefixes |= PREFIX_FWAIT;
3367 	  prefixes = PREFIX_FWAIT;
3411     /* REX prefixes family.  */
3470  *   (see topic "Redundant prefixes" in the "Differences from 8086"
3704   if (((prefixes & PREFIX_FWAIT)
3711 	 by other prefixes.  Print the first prefix.  */
3765   if (!uses_REPZ_prefix && (prefixes & PREFIX_REPZ))
3770   if (!uses_REPNZ_prefix && (prefixes & PREFIX_REPNZ))
3776   if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
3782   if (prefixes & PREFIX_ADDR)
3795   if (!uses_DATA_prefix && (prefixes & PREFIX_DATA))
3842 	      used_prefixes |= (prefixes & PREFIX_REPZ);
3843 	      if (prefixes & PREFIX_REPZ)
3849 		  used_prefixes |= (prefixes & PREFIX_REPNZ);
3850 		  if (prefixes & PREFIX_REPNZ)
3854 		      used_prefixes |= (prefixes & PREFIX_DATA);
3855 		      if (prefixes & PREFIX_DATA)
3885   /* See if any prefixes were not used.  If so, print the first one
3889   if ((prefixes & ~used_prefixes) != 0)
4403 	  if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
4409 	      used_prefixes |= (prefixes & PREFIX_DATA);
4424 	      used_prefixes |= (prefixes & PREFIX_DATA);
4440 	  used_prefixes |= (prefixes & PREFIX_ADDR);
4445 	  if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
4451 	      used_prefixes |= (prefixes & PREFIX_ADDR);
4462 	    used_prefixes |= (prefixes & PREFIX_DATA);
4467 	  if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
4468 	      || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
4470 	      used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
4473 	      if (prefixes & PREFIX_DS)
4507 	  if ((prefixes & PREFIX_FWAIT) == 0)
4521 	    used_prefixes |= (prefixes & PREFIX_DATA);
4535 	  if ((prefixes & PREFIX_DATA)
4549 	      used_prefixes |= (prefixes & PREFIX_DATA);
4577 	      used_prefixes |= (prefixes & PREFIX_DATA);
4597 	    used_prefixes |= (prefixes & PREFIX_DATA);
4622 		  used_prefixes |= (prefixes & PREFIX_DATA);
4627 	  if (prefixes & PREFIX_DATA)
4631 	  used_prefixes |= (prefixes & PREFIX_DATA);
4658 	    used_prefixes |= (prefixes & PREFIX_DATA);
4677   if (prefixes & PREFIX_CS)
4682   if (prefixes & PREFIX_DS)
4687   if (prefixes & PREFIX_SS)
4692   if (prefixes & PREFIX_ES)
4697   if (prefixes & PREFIX_FS)
4702   if (prefixes & PREFIX_GS)
4835 	  used_prefixes |= (prefixes & PREFIX_DATA);
4848       used_prefixes |= (prefixes & PREFIX_DATA);
4855 	used_prefixes |= (prefixes & PREFIX_DATA);
4875       used_prefixes |= (prefixes & PREFIX_DATA);
4935 	      used_prefixes |= (prefixes & PREFIX_DATA);
4952 	  used_prefixes |= (prefixes & PREFIX_DATA);
5095 	      if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5169 	  if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5220       used_prefixes |= (prefixes & PREFIX_DATA);
5361       used_prefixes |= (prefixes & PREFIX_DATA);
5408       used_prefixes |= (prefixes & PREFIX_DATA);
5416 	used_prefixes |= (prefixes & PREFIX_DATA);
5459       used_prefixes |= (prefixes & PREFIX_DATA);
5514       used_prefixes |= (prefixes & PREFIX_DATA);
5563       used_prefixes |= (prefixes & PREFIX_DATA);
5609 	  if ((prefixes & PREFIX_DATA) == 0)
5613       used_prefixes |= (prefixes & PREFIX_DATA);
5649   used_prefixes |= (prefixes & PREFIX_DATA);
5673       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5690       || (prefixes & PREFIX_ADDR))
5704       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5721   used_prefixes |= (prefixes & PREFIX_ADDR);
5781   if ((prefixes
5788     prefixes |= PREFIX_DS;
5802   else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
5844   used_prefixes |= (prefixes & PREFIX_DATA);
5845   if (prefixes & PREFIX_DATA)
5876 	  bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5877 	  used_prefixes |= (prefixes & PREFIX_DATA);
5886   used_prefixes |= (prefixes & PREFIX_DATA);
5887   if (prefixes & PREFIX_DATA)
5913 	  bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5914 	  used_prefixes |= (prefixes & PREFIX_DATA);
5923   used_prefixes |= (prefixes & PREFIX_DATA);
5931   used_prefixes |= (prefixes & PREFIX_DATA);
6022   if ((prefixes & PREFIX_DATA) != 0
6034   if ((prefixes & PREFIX_DATA) != 0
6155       used_prefixes |= (prefixes & PREFIX_REPZ);
6156       if (prefixes & PREFIX_REPZ)
6160 	  used_prefixes |= (prefixes & PREFIX_DATA);
6161 	  if (prefixes & PREFIX_DATA)
6165 	      used_prefixes |= (prefixes & PREFIX_REPNZ);
6166 	      if (prefixes & PREFIX_REPNZ)
6172       used_prefixes |= (prefixes & PREFIX_REPZ);
6217 	  && (prefixes & PREFIX_ADDR)
6239 	      if (!(prefixes & PREFIX_ADDR))
6289 	  && (prefixes & PREFIX_ADDR)
6353   if (!(prefixes & PREFIX_ADDR))
6406   /* Throw away prefixes and 1st. opcode byte.  */
6458       used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
6459       if (prefixes & PREFIX_DATA)
6461       else if (prefixes & PREFIX_REPZ)
6476   if (prefixes & PREFIX_REPZ)
6517       if ((prefixes & PREFIX_ADDR))
6588       used_prefixes |= (prefixes & PREFIX_DATA);
6619 	  else if ((prefixes & PREFIX_DATA))