x86: drop stray VEX opcode 82 references

No such ModR/M-less opcode has ever existed in public documentation
afaict, so I can't see why it had been added in the first place.
Furthermore opcode 77 is special only with implied prefix 0F.

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 234b58b144425aa894da297811f3faee009aac98..ca2cf0e938e55930536b0fc82d7c27f578ae058a 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-23  Jan Beulich  <jbeulich@suse.com>
+
+       * i386-dis.c (get_valid_dis386): Don't special case VEX opcode
+       82. For 3-byte VEX only special case opcode 77 in VEX_0F space.
+
 2017-02-21  Jan Beulich  <jbeulich@suse.com>
 
        * aarch64-asm.c (convert_bfc_to_bfm): Copy operand 0 to operand

diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 97a18baa58976994709f6257067b8c1505397967..108f0e3b236581f236911cb6667683618ba35b8e 100644 (file)
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -12771,8 +12771,8 @@ get_valid_dis386 (const struct dis386 *dp, disassemble_info *info)
       vindex = *codep++;
       dp = &vex_table[vex_table_index][vindex];
       end_codep = codep;
-      /* There is no MODRM byte for VEX [82|77].  */
-      if (vindex != 0x77 && vindex != 0x82)
+      /* There is no MODRM byte for VEX0F 77.  */
+      if (vex_table_index != VEX_0F || vindex != 0x77)
        {
          FETCH_DATA (info, codep + 1);
          modrm.mod = (*codep >> 6) & 3;
@@ -12814,8 +12814,8 @@ get_valid_dis386 (const struct dis386 *dp, disassemble_info *info)
       vindex = *codep++;
       dp = &vex_table[dp->op[1].bytemode][vindex];
       end_codep = codep;
-      /* There is no MODRM byte for VEX [82|77].  */
-      if (vindex != 0x77 && vindex != 0x82)
+      /* There is no MODRM byte for VEX 77.  */
+      if (vindex != 0x77)
        {
          FETCH_DATA (info, codep + 1);
          modrm.mod = (*codep >> 6) & 3;