x86: Set EVex=2 on EVEX.128 only vmovd and vmovq

[external/binutils.git] / opcodes / i386-dis.c

diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 89b824c..bc4db68 100644 (file)
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -703,7 +703,8 @@ enum
   USE_VEX_C5_TABLE,
   USE_VEX_LEN_TABLE,
   USE_VEX_W_TABLE,
-  USE_EVEX_TABLE
+  USE_EVEX_TABLE,
+  USE_EVEX_LEN_TABLE
 };
 
 #define FLOAT                  NULL, { { NULL, FLOATCODE } }, 0
@@ -723,6 +724,7 @@ enum
 #define VEX_LEN_TABLE(I)       DIS386 (USE_VEX_LEN_TABLE, (I))
 #define VEX_W_TABLE(I)         DIS386 (USE_VEX_W_TABLE, (I))
 #define EVEX_TABLE(I)          DIS386 (USE_EVEX_TABLE, (I))
+#define EVEX_LEN_TABLE(I)      DIS386 (USE_EVEX_LEN_TABLE, (I))
 
 enum
 {
@@ -1931,6 +1933,14 @@ enum
 
 enum
 {
+  EVEX_LEN_0F6E_P_2 = 0,
+  EVEX_LEN_0F7E_P_1,
+  EVEX_LEN_0F7E_P_2,
+  EVEX_LEN_0FD6_P_2
+};
+
+enum
+{
   VEX_W_0F41_P_0_LEN_1 = 0,
   VEX_W_0F41_P_2_LEN_1,
   VEX_W_0F42_P_0_LEN_1,
@@ -9882,6 +9892,12 @@ static const struct dis386 vex_len_table[][2] = {
   },
 };
 
+static const struct dis386 evex_len_table[][3] = {
+#define NEED_EVEX_LEN_TABLE
+#include "i386-dis-evex.h"
+#undef NEED_EVEX_LEN_TABLE
+};
+
 static const struct dis386 vex_w_table[][2] = {
   {
     /* VEX_W_0F41_P_0_LEN_1 */
@@ -11542,6 +11558,29 @@ get_valid_dis386 (const struct dis386 *dp, disassemble_info *info)
       dp = &vex_len_table[dp->op[1].bytemode][vindex];
       break;
 
+    case USE_EVEX_LEN_TABLE:
+      if (!vex.evex)
+       abort ();
+
+      switch (vex.length)
+       {
+       case 128:
+         vindex = 0;
+         break;
+       case 256:
+         vindex = 1;
+         break;
+       case 512:
+         vindex = 2;
+         break;
+       default:
+         abort ();
+         break;
+       }
+
+      dp = &evex_len_table[dp->op[1].bytemode][vindex];
+      break;
+
     case USE_XOP_8F_TABLE:
       FETCH_DATA (info, codep + 3);
       /* All bits in the REX prefix are ignored.  */