return regno;
 }
 
+/* Parse list of up to eight 64-bit element tile names separated by commas in
+   SME's ZERO instruction:
+
+     ZERO { <mask> }
+
+   Function returns <mask>:
+
+     an 8-bit list of 64-bit element tiles named ZA0.D to ZA7.D.
+*/
+static int
+parse_sme_zero_mask(char **str)
+{
+  char *q;
+  int mask;
+  aarch64_opnd_qualifier_t qualifier;
+
+  mask = 0x00;
+  q = *str;
+  do
+    {
+      const reg_entry *reg = parse_reg_with_qual (&q, REG_TYPE_ZA, &qualifier);
+      if (reg)
+        {
+          int regno = reg->number;
+          if (qualifier == AARCH64_OPND_QLF_S_B && regno == 0)
+            {
+              /* { ZA0.B } is assembled as all-ones immediate.  */
+              mask = 0xff;
+            }
+          else if (qualifier == AARCH64_OPND_QLF_S_H && regno < 2)
+            mask |= 0x55 << regno;
+          else if (qualifier == AARCH64_OPND_QLF_S_S && regno < 4)
+            mask |= 0x11 << regno;
+          else if (qualifier == AARCH64_OPND_QLF_S_D && regno < 8)
+            mask |= 0x01 << regno;
+          else
+            {
+              set_syntax_error (_("wrong ZA tile element format"));
+              return PARSE_FAIL;
+            }
+          continue;
+        }
+      else if (strncasecmp (q, "za", 2) == 0
+               && !ISALNUM (q[2]))
+        {
+          /* { ZA } is assembled as all-ones immediate.  */
+          mask = 0xff;
+          q += 2;
+          continue;
+        }
+      else
+        {
+          set_syntax_error (_("wrong ZA tile element format"));
+          return PARSE_FAIL;
+        }
+    }
+  while (skip_past_char (&q, ','));
+
+  *str = q;
+  return mask;
+}
+
+/* Wraps in curly braces <mask> operand ZERO instruction:
+
+   ZERO { <mask> }
+
+   Function returns value of <mask> bit-field.
+*/
+static int
+parse_sme_list_of_64bit_tiles (char **str)
+{
+  int regno;
+
+  if (!skip_past_char (str, '{'))
+    {
+      set_syntax_error (_("expected '{'"));
+      return PARSE_FAIL;
+    }
+
+  /* Empty <mask> list is an all-zeros immediate.  */
+  if (!skip_past_char (str, '}'))
+    {
+      regno = parse_sme_zero_mask (str);
+      if (regno == PARSE_FAIL)
+         return PARSE_FAIL;
+
+      if (!skip_past_char (str, '}'))
+        {
+          set_syntax_error (_("expected '}'"));
+          return PARSE_FAIL;
+        }
+    }
+  else
+    regno = 0x00;
+
+  return regno;
+}
 
 /* Parse a system register or a PSTATE field name for an MSR/MRS instruction.
    Returns the encoding for the option, or PARSE_FAIL.
            break;
          }
 
+         case AARCH64_OPND_SME_list_of_64bit_tiles:
+           val = parse_sme_list_of_64bit_tiles (&str);
+           if (val == PARSE_FAIL)
+             goto failure;
+           info->imm.value = val;
+           break;
+
        default:
          as_fatal (_("unhandled operand code %d"), operands[i]);
        }
 
--- /dev/null
+#as: -march=armv8-a+sme
+#source: sme-4-illegal.s
+#error_output: sme-4-illegal.l
 
--- /dev/null
+[^:]*: Assembler messages:
+[^:]*:[0-9]+: Error: expected '{' at operand 1 -- `zero za'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za8\.d}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0\.d,za8.d}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za2\.h}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za4\.s}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za1\.s,za4.s}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0\.d,za3.s,za2.h}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za1.b}'
+[^:]*:[0-9]+: Error: unexpected comma after the mnemonic name `zero' -- `zero ,'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {,'
+[^:]*:[0-9]+: Error: expected '{' at operand 1 -- `zero }'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {,}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {,,}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {,za0.d}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0.d,}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0.d,za1.d,}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za,}'
+[^:]*:[0-9]+: Error: expected '}' at operand 1 -- `zero {za.}'
+[^:]*:[0-9]+: Error: expected '}' at operand 1 -- `zero {za-}'
+[^:]*:[0-9]+: Error: expected '}' at operand 1 -- `zero {za_}'
+[^:]*:[0-9]+: Error: expected '}' at operand 1 -- `zero {za#}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {zaX}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {za0}'
+[^:]*:[0-9]+: Error: wrong ZA tile element format at operand 1 -- `zero {zax}'
+[^:]*:[0-9]+: Error: expected '}' at operand 1 -- `zero {za{}'
+[^:]*:[0-9]+: Error: unexpected characters following instruction at operand 1 -- `zero {za}}'
 
--- /dev/null
+/* Scalable Matrix Extension (SME).  */
+
+zero za
+zero { za8.d }
+zero { za0.d, za8.d }
+zero { za2.h }
+zero { za4.s }
+zero { za1.s, za4.s }
+zero { za0.d, za3.s, za2.h }
+zero { za1.b }
+
+/* Parser checks.  */
+zero ,
+zero {
+zero { ,
+zero }
+zero { , }
+zero { , , }
+zero { za0 }
+zero { , za0.d }
+zero { za0.d , }
+zero { za0.d , za1.d , }
+zero { za, }
+zero { za. }
+zero { za- }
+zero { za_ }
+zero { za# }
+zero { zaX }
+zero { za0 }
+zero { zax }
+zero { za{ }
+zero { za} }
 
--- /dev/null
+#name: SME extension (ZERO)
+#as: -march=armv8-a+sme
+#objdump: -dr
+
+.*:     file format .*
+
+Disassembly of section \.text:
+
+0+ <.*>:
+   0:  c0080000        zero    {}
+   4:  c00800ff        zero    {za}
+   8:  c00800ff        zero    {za}
+   c:  c00800ff        zero    {za}
+  10:  c00800ff        zero    {za}
+  14:  c00800ff        zero    {za}
+  18:  c0080001        zero    {za0\.d}
+  1c:  c0080002        zero    {za1\.d}
+  20:  c0080004        zero    {za2\.d}
+  24:  c0080008        zero    {za3\.d}
+  28:  c0080010        zero    {za4\.d}
+  2c:  c0080020        zero    {za5\.d}
+  30:  c0080040        zero    {za6\.d}
+  34:  c0080080        zero    {za7\.d}
+  38:  c0080001        zero    {za0\.d}
+  3c:  c0080003        zero    {za0\.d, za1\.d}
+  40:  c0080007        zero    {za0\.d, za1\.d, za2\.d}
+  44:  c008000f        zero    {za0\.d, za1\.d, za2\.d, za3\.d}
+  48:  c008001f        zero    {za0\.s, za1\.d, za2\.d, za3\.d}
+  4c:  c008003f        zero    {za0\.s, za1\.s, za2\.d, za3\.d}
+  50:  c008007f        zero    {za0\.h, za1\.s, za3\.d}
+  54:  c00800ff        zero    {za}
+  58:  c0080080        zero    {za7\.d}
+  5c:  c00800c0        zero    {za6\.d, za7\.d}
+  60:  c00800e0        zero    {za5\.d, za6\.d, za7\.d}
+  64:  c00800f0        zero    {za4\.d, za5\.d, za6\.d, za7\.d}
+  68:  c00800f8        zero    {za3\.s, za4\.d, za5\.d, za6\.d}
+  6c:  c00800fc        zero    {za2\.s, za3\.s, za4\.d, za5\.d}
+  70:  c00800fe        zero    {za1\.h, za2\.s, za4\.d}
+  74:  c00800ff        zero    {za}
+  78:  c00800fe        zero    {za1\.h, za2\.s, za4\.d}
+  7c:  c00800fd        zero    {za0\.h, za3\.s, za5\.d}
+  80:  c00800fb        zero    {za1\.h, za0\.s, za6\.d}
+  84:  c00800f7        zero    {za0\.h, za1\.s, za7\.d}
+  88:  c00800ef        zero    {za1\.h, za2\.s, za0\.d}
+  8c:  c00800df        zero    {za0\.h, za3\.s, za1\.d}
+  90:  c00800bf        zero    {za1\.h, za0\.s, za2\.d}
+  94:  c008007f        zero    {za0\.h, za1\.s, za3\.d}
+  98:  c0080055        zero    {za0\.h}
+  9c:  c00800aa        zero    {za1\.h}
+  a0:  c0080011        zero    {za0\.s}
+  a4:  c0080022        zero    {za1\.s}
+  a8:  c0080044        zero    {za2\.s}
+  ac:  c0080088        zero    {za3\.s}
+  b0:  c0080055        zero    {za0\.h}
+  b4:  c0080055        zero    {za0\.h}
+  b8:  c0080055        zero    {za0\.h}
+  bc:  c00800aa        zero    {za1\.h}
+  c0:  c00800aa        zero    {za1\.h}
+  c4:  c00800aa        zero    {za1\.h}
+  c8:  c0080011        zero    {za0\.s}
+  cc:  c0080022        zero    {za1\.s}
+  d0:  c0080044        zero    {za2\.s}
+  d4:  c0080088        zero    {za3\.s}
+  d8:  c00800d5        zero    {za0.h, za7.d}
+  dc:  c00800ab        zero    {za1.h, za0.d}
+  e0:  c0080015        zero    {za0.s, za2.d}
+  e4:  c008002a        zero    {za1.s, za3.d}
+  e8:  c0080054        zero    {za2.s, za4.d}
+  ec:  c00800a8        zero    {za3.s, za5.d}
+  f0:  c00800d5        zero    {za0.h, za7.d}
+  f4:  c0080015        zero    {za0.s, za2.d}
 
--- /dev/null
+/* SME Extension (ZERO).  */
+
+/* An all-zeros immediate is disassembled as an empty list { }.  */
+zero { }
+
+/* An all-ones immediate is disassembled as {ZA}.  */
+zero { za }
+zero { za0.b }
+zero { za0.h, za1.h }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d, za6.d, za7.d }
+zero { za7.d, za6.d, za5.d, za4.d, za3.d, za2.d, za1.d, za0.d }
+
+/* Set each bit individually.  */
+zero { za0.d }
+zero { za1.d }
+zero { za2.d }
+zero { za3.d }
+zero { za4.d }
+zero { za5.d }
+zero { za6.d }
+zero { za7.d }
+
+/* Random bits.  */
+zero { za0.d }
+zero { za0.d, za1.d }
+zero { za0.d, za1.d, za2.d }
+zero { za0.d, za1.d, za2.d, za3.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d, za6.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d, za6.d, za7.d }
+
+zero { za7.d }
+zero { za7.d, za6.d }
+zero { za7.d, za6.d, za5.d }
+zero { za7.d, za6.d, za5.d, za4.d }
+zero { za7.d, za6.d, za5.d, za4.d, za3.d }
+zero { za7.d, za6.d, za5.d, za4.d, za3.d, za2.d }
+zero { za7.d, za6.d, za5.d, za4.d, za3.d, za2.d, za1.d }
+zero { za7.d, za6.d, za5.d, za4.d, za3.d, za2.d, za1.d, za0.d }
+
+zero { za1.d, za2.d, za3.d, za4.d, za5.d, za6.d, za7.d }
+zero { za0.d, za2.d, za3.d, za4.d, za5.d, za6.d, za7.d }
+zero { za0.d, za1.d, za3.d, za4.d, za5.d, za6.d, za7.d }
+zero { za0.d, za1.d, za2.d, za4.d, za5.d, za6.d, za7.d }
+zero { za0.d, za1.d, za2.d, za3.d, za5.d, za6.d, za7.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za6.d, za7.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d, za7.d }
+zero { za0.d, za1.d, za2.d, za3.d, za4.d, za5.d, za6.d }
+
+/* For programmer convenience an assembler must also accept the names of
+   32-bit, 16-bit and 8-bit element tiles.
+*/
+zero { za0.h }
+zero { za1.h }
+zero { za0.s }
+zero { za1.s }
+zero { za2.s }
+zero { za3.s }
+
+/* The preferred disassembly of this instruction uses the shortest list of tile
+   names that represent the encoded immediate mask.
+*/
+
+/* To za0.h  */
+zero { za0.d, za2.d, za4.d, za6.d }
+zero { za0.s, za2.s }
+zero { za0.h }
+
+/* To za1.h  */
+zero { za1.d, za3.d, za5.d, za7.d }
+zero { za1.s, za3.s }
+zero { za1.h }
+
+/* To za[0-3].s  */
+zero { za0.d, za4.d }
+zero { za1.d, za5.d }
+zero { za2.d, za6.d }
+zero { za3.d, za7.d }
+
+/* Mix of suffixed.  */
+zero { za0.h, za7.d }
+zero { za1.h, za0.d }
+zero { za0.s, za2.d }
+zero { za1.s, za3.d }
+zero { za2.s, za4.d }
+zero { za3.s, za5.d }
+
+/* Register aliases.  */
+foo .req za0
+bar .req za2
+baz .req za7
+
+zero { foo.h, baz.d }
+zero { za0.s, bar.d }
 
   AARCH64_OPND_SME_ZA_HV_idx_src,      /* SME source ZA tile vector.  */
   AARCH64_OPND_SME_ZA_HV_idx_dest,     /* SME destination ZA tile vector.  */
   AARCH64_OPND_SME_Pm,         /* SME scalable predicate register, bits [15:13].  */
+  AARCH64_OPND_SME_list_of_64bit_tiles, /* SME list of ZA tiles.  */
   AARCH64_OPND_TME_UIMM16,     /* TME unsigned 16-bit immediate.  */
   AARCH64_OPND_SM3_IMM2,       /* SM3 encodes lane in bits [13, 14].  */
 };
 
     case 33:
     case 34:
     case 35:
-    case 215:
+    case 216:
       return aarch64_ins_reglane (self, info, code, inst, errors);
     case 36:
       return aarch64_ins_reglist (self, info, code, inst, errors);
     case 188:
     case 189:
     case 214:
+    case 215:
       return aarch64_ins_imm (self, info, code, inst, errors);
     case 44:
     case 45:
 
                                 {
                                   if (((word >> 17) & 0x1) == 0)
                                     {
-                                      if (((word >> 20) & 0x1) == 0)
-                                        {
-                                          /* 33222222222211111111110000000000
-                                             10987654321098765432109876543210
-                                             x1000000xx00xx0xxxxxxxxxxxxxxxxx
-                                             mov.  */
-                                          return 2377;
-                                        }
-                                      else
+                                      if (((word >> 19) & 0x1) == 0)
                                         {
-                                          if (((word >> 16) & 0x1) == 0)
+                                          if (((word >> 20) & 0x1) == 0)
                                             {
-                                              if (((word >> 22) & 0x1) == 0)
-                                                {
-                                                  /* 33222222222211111111110000000000
-                                                     10987654321098765432109876543210
-                                                     x1000000x001xx00xxxxxxxxxxxxxxxx
-                                                     addha.  */
-                                                  return 2348;
-                                                }
-                                              else
-                                                {
-                                                  /* 33222222222211111111110000000000
-                                                     10987654321098765432109876543210
-                                                     x1000000x101xx00xxxxxxxxxxxxxxxx
-                                                     addha.  */
-                                                  return 2349;
-                                                }
+                                              /* 33222222222211111111110000000000
+                                                 10987654321098765432109876543210
+                                                 x1000000xx000x0xxxxxxxxxxxxxxxxx
+                                                 mov.  */
+                                              return 2377;
                                             }
                                           else
                                             {
-                                              if (((word >> 22) & 0x1) == 0)
+                                              if (((word >> 16) & 0x1) == 0)
                                                 {
-                                                  /* 33222222222211111111110000000000
-                                                     10987654321098765432109876543210
-                                                     x1000000x001xx01xxxxxxxxxxxxxxxx
-                                                     addva.  */
-                                                  return 2350;
+                                                  if (((word >> 22) & 0x1) == 0)
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         x1000000x0010x00xxxxxxxxxxxxxxxx
+                                                         addha.  */
+                                                      return 2348;
+                                                    }
+                                                  else
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         x1000000x1010x00xxxxxxxxxxxxxxxx
+                                                         addha.  */
+                                                      return 2349;
+                                                    }
                                                 }
                                               else
                                                 {
-                                                  /* 33222222222211111111110000000000
-                                                     10987654321098765432109876543210
-                                                     x1000000x101xx01xxxxxxxxxxxxxxxx
-                                                     addva.  */
-                                                  return 2351;
+                                                  if (((word >> 22) & 0x1) == 0)
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         x1000000x0010x01xxxxxxxxxxxxxxxx
+                                                         addva.  */
+                                                      return 2350;
+                                                    }
+                                                  else
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         x1000000x1010x01xxxxxxxxxxxxxxxx
+                                                         addva.  */
+                                                      return 2351;
+                                                    }
                                                 }
                                             }
                                         }
+                                      else
+                                        {
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             x1000000xx0x1x0xxxxxxxxxxxxxxxxx
+                                             zero.  */
+                                          return 2380;
+                                        }
                                     }
                                   else
                                     {
                                                          10987654321098765432109876543210
                                                          00011001000xxxxxxxxx00xxxxxxxxxx
                                                          stlurb.  */
-                                                      return 2420;
+                                                      return 2421;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          10011001000xxxxxxxxx00xxxxxxxxxx
                                                          stlur.  */
-                                                      return 2428;
+                                                      return 2429;
                                                     }
                                                 }
                                               else
                                                          10987654321098765432109876543210
                                                          01011001000xxxxxxxxx00xxxxxxxxxx
                                                          stlurh.  */
-                                                      return 2424;
+                                                      return 2425;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          11011001000xxxxxxxxx00xxxxxxxxxx
                                                          stlur.  */
-                                                      return 2431;
+                                                      return 2432;
                                                     }
                                                 }
                                             }
                                                          10987654321098765432109876543210
                                                          00011001010xxxxxxxxx00xxxxxxxxxx
                                                          ldapurb.  */
-                                                      return 2421;
+                                                      return 2422;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          10011001010xxxxxxxxx00xxxxxxxxxx
                                                          ldapur.  */
-                                                      return 2429;
+                                                      return 2430;
                                                     }
                                                 }
                                               else
                                                          10987654321098765432109876543210
                                                          01011001010xxxxxxxxx00xxxxxxxxxx
                                                          ldapurh.  */
-                                                      return 2425;
+                                                      return 2426;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          11011001010xxxxxxxxx00xxxxxxxxxx
                                                          ldapur.  */
-                                                      return 2432;
+                                                      return 2433;
                                                     }
                                                 }
                                             }
                                                          10987654321098765432109876543210
                                                          00011001100xxxxxxxxx00xxxxxxxxxx
                                                          ldapursb.  */
-                                                      return 2423;
+                                                      return 2424;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          10011001100xxxxxxxxx00xxxxxxxxxx
                                                          ldapursw.  */
-                                                      return 2430;
+                                                      return 2431;
                                                     }
                                                 }
                                               else
                                                      10987654321098765432109876543210
                                                      x1011001100xxxxxxxxx00xxxxxxxxxx
                                                      ldapursh.  */
-                                                  return 2427;
+                                                  return 2428;
                                                 }
                                             }
                                           else
                                                      10987654321098765432109876543210
                                                      x0011001110xxxxxxxxx00xxxxxxxxxx
                                                      ldapursb.  */
-                                                  return 2422;
+                                                  return 2423;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      x1011001110xxxxxxxxx00xxxxxxxxxx
                                                      ldapursh.  */
-                                                  return 2426;
+                                                  return 2427;
                                                 }
                                             }
                                         }
                                              10987654321098765432109876543210
                                              xxx11010x00xxxxxx0xx10xxxxxxxxxx
                                              setf8.  */
-                                          return 2418;
+                                          return 2419;
                                         }
                                       else
                                         {
                                              10987654321098765432109876543210
                                              xxx11010x00xxxxxx1xx10xxxxxxxxxx
                                              setf16.  */
-                                          return 2419;
+                                          return 2420;
                                         }
                                     }
                                   else
                                              10987654321098765432109876543210
                                              xxx11010000xxxxxxxxx01xxxxxxxxxx
                                              rmif.  */
-                                          return 2417;
+                                          return 2418;
                                         }
                                       else
                                         {
                                                                  10987654321098765432109876543210
                                                                  010001x01x1xxxxx000110xxxxxxxxxx
                                                                  usdot.  */
-                                                              return 2437;
+                                                              return 2438;
                                                             }
                                                         }
                                                     }
                                                                  10987654321098765432109876543210
                                                                  010001x01x1xxxxx000111xxxxxxxxxx
                                                                  sudot.  */
-                                                              return 2438;
+                                                              return 2439;
                                                             }
                                                         }
                                                     }
                                                              10987654321098765432109876543210
                                                              010001x0xx0xxxxx011110xxxxxxxxxx
                                                              usdot.  */
-                                                          return 2436;
+                                                          return 2437;
                                                         }
                                                     }
                                                 }
                                                                  10987654321098765432109876543210
                                                                  011001x0100xxx10101xxxxxxxxxxxxx
                                                                  bfcvtnt.  */
-                                                              return 2465;
+                                                              return 2466;
                                                             }
                                                         }
                                                       else
                                                  10987654321098765432109876543210
                                                  101001x00x1xxxxxx00xxxxxxxxxxxxx
                                                  ld1rob.  */
-                                              return 2441;
+                                              return 2442;
                                             }
                                           else
                                             {
                                                  10987654321098765432109876543210
                                                  101001x01x1xxxxxx00xxxxxxxxxxxxx
                                                  ld1roh.  */
-                                              return 2442;
+                                              return 2443;
                                             }
                                         }
                                       else
                                                          10987654321098765432109876543210
                                                          011001x0011xxxxx010xxxxxxxxxxxxx
                                                          bfdot.  */
-                                                      return 2462;
+                                                      return 2463;
                                                     }
                                                   else
                                                     {
                                                              10987654321098765432109876543210
                                                              011001x0111xxxxx010xx0xxxxxxxxxx
                                                              bfmlalb.  */
-                                                          return 2469;
+                                                          return 2470;
                                                         }
                                                       else
                                                         {
                                                              10987654321098765432109876543210
                                                              011001x0111xxxxx010xx1xxxxxxxxxx
                                                              bfmlalt.  */
-                                                          return 2468;
+                                                          return 2469;
                                                         }
                                                     }
                                                   else
                                                  10987654321098765432109876543210
                                                  x11001x0011xxxxx1x0xxxxxxxxxxxxx
                                                  bfdot.  */
-                                              return 2461;
+                                              return 2462;
                                             }
                                           else
                                             {
                                                          10987654321098765432109876543210
                                                          011001x0111xxxxx1x0xx0xxxxxxxxxx
                                                          bfmlalb.  */
-                                                      return 2467;
+                                                      return 2468;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          011001x0111xxxxx1x0xx1xxxxxxxxxx
                                                          bfmlalt.  */
-                                                      return 2466;
+                                                      return 2467;
                                                     }
                                                 }
                                               else
                                                      10987654321098765432109876543210
                                                      101001x00x1xxxxx001xxxxxxxxxxxxx
                                                      ld1rob.  */
-                                                  return 2445;
+                                                  return 2446;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      101001x01x1xxxxx001xxxxxxxxxxxxx
                                                      ld1roh.  */
-                                                  return 2446;
+                                                  return 2447;
                                                 }
                                             }
                                           else
                                                          10987654321098765432109876543210
                                                          011001x0101xxxxx111xxxxxxxxxxxxx
                                                          fmmla.  */
-                                                      return 2439;
+                                                      return 2440;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          011001x0011xxxxx111xxxxxxxxxxxxx
                                                          bfmmla.  */
-                                                      return 2463;
+                                                      return 2464;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          011001x0111xxxxx111xxxxxxxxxxxxx
                                                          fmmla.  */
-                                                      return 2440;
+                                                      return 2441;
                                                     }
                                                   else
                                                     {
                                                                  10987654321098765432109876543210
                                                                  000001x1101xxxxx000x00xxxxxxxxxx
                                                                  zip1.  */
-                                                              return 2449;
+                                                              return 2450;
                                                             }
                                                           else
                                                             {
                                                                      10987654321098765432109876543210
                                                                      000001x1101xxxxx000010xxxxxxxxxx
                                                                      uzp1.  */
-                                                                  return 2451;
+                                                                  return 2452;
                                                                 }
                                                               else
                                                                 {
                                                                      10987654321098765432109876543210
                                                                      000001x1101xxxxx000110xxxxxxxxxx
                                                                      trn1.  */
-                                                                  return 2453;
+                                                                  return 2454;
                                                                 }
                                                             }
                                                         }
                                                                  10987654321098765432109876543210
                                                                  000001x1101xxxxx000x01xxxxxxxxxx
                                                                  zip2.  */
-                                                              return 2450;
+                                                              return 2451;
                                                             }
                                                           else
                                                             {
                                                                      10987654321098765432109876543210
                                                                      000001x1101xxxxx000011xxxxxxxxxx
                                                                      uzp2.  */
-                                                                  return 2452;
+                                                                  return 2453;
                                                                 }
                                                               else
                                                                 {
                                                                      10987654321098765432109876543210
                                                                      000001x1101xxxxx000111xxxxxxxxxx
                                                                      trn2.  */
-                                                                  return 2454;
+                                                                  return 2455;
                                                                 }
                                                             }
                                                         }
                                                                      10987654321098765432109876543210
                                                                      010001x1000xxxxx100110xxxxxxxxxx
                                                                      smmla.  */
-                                                                  return 2433;
+                                                                  return 2434;
                                                                 }
                                                               else
                                                                 {
                                                                      10987654321098765432109876543210
                                                                      010001x1100xxxxx100110xxxxxxxxxx
                                                                      usmmla.  */
-                                                                  return 2435;
+                                                                  return 2436;
                                                                 }
                                                             }
                                                           else
                                                                  10987654321098765432109876543210
                                                                  010001x1x10xxxxx100110xxxxxxxxxx
                                                                  ummla.  */
-                                                              return 2434;
+                                                              return 2435;
                                                             }
                                                         }
                                                     }
                                                      10987654321098765432109876543210
                                                      101001x10x1xxxxx000xxxxxxxxxxxxx
                                                      ld1row.  */
-                                                  return 2443;
+                                                  return 2444;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      101001x11x1xxxxx000xxxxxxxxxxxxx
                                                      ld1rod.  */
-                                                  return 2444;
+                                                  return 2445;
                                                 }
                                             }
                                         }
                                                      10987654321098765432109876543210
                                                      101001x10x1xxxxx001xxxxxxxxxxxxx
                                                      ld1row.  */
-                                                  return 2447;
+                                                  return 2448;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      101001x11x1xxxxx001xxxxxxxxxxxxx
                                                      ld1rod.  */
-                                                  return 2448;
+                                                  return 2449;
                                                 }
                                             }
                                         }
                                                                          10987654321098765432109876543210
                                                                          011001x110001x10101xxxxxxxxxxxxx
                                                                          bfcvt.  */
-                                                                      return 2464;
+                                                                      return 2465;
                                                                     }
                                                                 }
                                                               else
                                                          10987654321098765432109876543210
                                                          0x001110xx0xxxxx1x1001xxxxxxxxxx
                                                          smmla.  */
-                                                      return 2455;
+                                                      return 2456;
                                                     }
                                                 }
                                             }
                                                          10987654321098765432109876543210
                                                          0x001110xx0xxxxx1x0101xxxxxxxxxx
                                                          sdot.  */
-                                                      return 2381;
+                                                      return 2382;
                                                     }
                                                 }
                                               else
                                                          10987654321098765432109876543210
                                                          0x001110xx0xxxxx1x1011xxxxxxxxxx
                                                          usmmla.  */
-                                                      return 2457;
+                                                      return 2458;
                                                     }
                                                 }
                                             }
                                                          10987654321098765432109876543210
                                                          0x001110xx0xxxxx1x0111xxxxxxxxxx
                                                          usdot.  */
-                                                      return 2458;
+                                                      return 2459;
                                                     }
                                                 }
                                               else
                                              10987654321098765432109876543210
                                              1x001110000xxxxxxxxxxxxxxxxxxxxx
                                              eor3.  */
-                                          return 2388;
+                                          return 2389;
                                         }
                                       else
                                         {
                                              10987654321098765432109876543210
                                              1x001110100xxxxxxxxxxxxxxxxxxxxx
                                              xar.  */
-                                          return 2390;
+                                          return 2391;
                                         }
                                     }
                                   else
                                              10987654321098765432109876543210
                                              1x001110x10xxxxx0xxxxxxxxxxxxxxx
                                              sm3ss1.  */
-                                          return 2392;
+                                          return 2393;
                                         }
                                       else
                                         {
                                                          10987654321098765432109876543210
                                                          1x001110010xxxxx1xxx00xxxxxxxxxx
                                                          sm3tt1a.  */
-                                                      return 2393;
+                                                      return 2394;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          1x001110110xxxxx1xxx00xxxxxxxxxx
                                                          sha512su0.  */
-                                                      return 2386;
+                                                      return 2387;
                                                     }
                                                 }
                                               else
                                                      10987654321098765432109876543210
                                                      1x001110x10xxxxx1xxx10xxxxxxxxxx
                                                      sm3tt2a.  */
-                                                  return 2395;
+                                                  return 2396;
                                                 }
                                             }
                                           else
                                                          10987654321098765432109876543210
                                                          1x001110010xxxxx1xxx01xxxxxxxxxx
                                                          sm3tt1b.  */
-                                                      return 2394;
+                                                      return 2395;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          1x001110110xxxxx1xxx01xxxxxxxxxx
                                                          sm4e.  */
-                                                      return 2399;
+                                                      return 2400;
                                                     }
                                                 }
                                               else
                                                      10987654321098765432109876543210
                                                      1x001110x10xxxxx1xxx11xxxxxxxxxx
                                                      sm3tt2b.  */
-                                                  return 2396;
+                                                  return 2397;
                                                 }
                                             }
                                         }
                                                          10987654321098765432109876543210
                                                          xx101110xx0xxxxx100101xxxxxxxxxx
                                                          udot.  */
-                                                      return 2380;
+                                                      return 2381;
                                                     }
                                                 }
                                               else
                                                      10987654321098765432109876543210
                                                      xx101110xx0xxxxx101x01xxxxxxxxxx
                                                      ummla.  */
-                                                  return 2456;
+                                                  return 2457;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      xx101110xx0xxxxx1x1011xxxxxxxxxx
                                                      bfmmla.  */
-                                                  return 2472;
+                                                  return 2473;
                                                 }
                                               else
                                                 {
                                                          10987654321098765432109876543210
                                                          xx1011100x0xxxxx1x1111xxxxxxxxxx
                                                          bfdot.  */
-                                                      return 2470;
+                                                      return 2471;
                                                     }
                                                   else
                                                     {
                                                              10987654321098765432109876543210
                                                              x01011101x0xxxxx1x1111xxxxxxxxxx
                                                              bfmlalb.  */
-                                                          return 2477;
+                                                          return 2478;
                                                         }
                                                       else
                                                         {
                                                              10987654321098765432109876543210
                                                              x11011101x0xxxxx1x1111xxxxxxxxxx
                                                              bfmlalt.  */
-                                                          return 2476;
+                                                          return 2477;
                                                         }
                                                     }
                                                 }
                                                                          10987654321098765432109876543210
                                                                          000011101x1xxxx1011010xxxxxxxxxx
                                                                          bfcvtn.  */
-                                                                      return 2473;
+                                                                      return 2474;
                                                                     }
                                                                   else
                                                                     {
                                                                          10987654321098765432109876543210
                                                                          010011101x1xxxx1011010xxxxxxxxxx
                                                                          bfcvtn2.  */
-                                                                      return 2474;
+                                                                      return 2475;
                                                                     }
                                                                 }
                                                             }
                                          10987654321098765432109876543210
                                          1x001110xx1xxxxx0xxxxxxxxxxxxxxx
                                          bcax.  */
-                                      return 2391;
+                                      return 2392;
                                     }
                                 }
                               else
                                                                  10987654321098765432109876543210
                                                                  11001110xx1xxxxx100000xxxxxxxxxx
                                                                  sha512h.  */
-                                                              return 2384;
+                                                              return 2385;
                                                             }
                                                         }
                                                     }
                                                                  10987654321098765432109876543210
                                                                  11001110xx1xxxxx110000xxxxxxxxxx
                                                                  sm3partw1.  */
-                                                              return 2397;
+                                                              return 2398;
                                                             }
                                                         }
                                                     }
                                                              10987654321098765432109876543210
                                                              1x001110xx1xxxxx100010xxxxxxxxxx
                                                              sha512su1.  */
-                                                          return 2387;
+                                                          return 2388;
                                                         }
                                                     }
                                                   else
                                                                  10987654321098765432109876543210
                                                                  1x0011100x1xxxxx110010xxxxxxxxxx
                                                                  sm4ekey.  */
-                                                              return 2400;
+                                                              return 2401;
                                                             }
                                                         }
                                                       else
                                                              10987654321098765432109876543210
                                                              1x001110xx1xxxxx100001xxxxxxxxxx
                                                              sha512h2.  */
-                                                          return 2385;
+                                                          return 2386;
                                                         }
                                                     }
                                                   else
                                                                  10987654321098765432109876543210
                                                                  1x0011100x1xxxxx110001xxxxxxxxxx
                                                                  sm3partw2.  */
-                                                              return 2398;
+                                                              return 2399;
                                                             }
                                                         }
                                                       else
                                                              10987654321098765432109876543210
                                                              1x001110xx1xxxxx100011xxxxxxxxxx
                                                              rax1.  */
-                                                          return 2389;
+                                                          return 2390;
                                                         }
                                                     }
                                                   else
                                                                  10987654321098765432109876543210
                                                                  x01011100x1xxxxx110011xxxxxxxxxx
                                                                  fmlal2.  */
-                                                              return 2403;
+                                                              return 2404;
                                                             }
                                                           else
                                                             {
                                                                  10987654321098765432109876543210
                                                                  x11011100x1xxxxx110011xxxxxxxxxx
                                                                  fmlal2.  */
-                                                              return 2407;
+                                                              return 2408;
                                                             }
                                                         }
                                                     }
                                                                  10987654321098765432109876543210
                                                                  x01011101x1xxxxx110011xxxxxxxxxx
                                                                  fmlsl2.  */
-                                                              return 2404;
+                                                              return 2405;
                                                             }
                                                           else
                                                             {
                                                                  10987654321098765432109876543210
                                                                  x11011101x1xxxxx110011xxxxxxxxxx
                                                                  fmlsl2.  */
-                                                              return 2408;
+                                                              return 2409;
                                                             }
                                                         }
                                                     }
                                                                  10987654321098765432109876543210
                                                                  x00011100x1xxxxx111011xxxxxxxxxx
                                                                  fmlal.  */
-                                                              return 2401;
+                                                              return 2402;
                                                             }
                                                           else
                                                             {
                                                                  10987654321098765432109876543210
                                                                  x10011100x1xxxxx111011xxxxxxxxxx
                                                                  fmlal.  */
-                                                              return 2405;
+                                                              return 2406;
                                                             }
                                                         }
                                                       else
                                                                  10987654321098765432109876543210
                                                                  x00011101x1xxxxx111011xxxxxxxxxx
                                                                  fmlsl.  */
-                                                              return 2402;
+                                                              return 2403;
                                                             }
                                                           else
                                                             {
                                                                  10987654321098765432109876543210
                                                                  x10011101x1xxxxx111011xxxxxxxxxx
                                                                  fmlsl.  */
-                                                              return 2406;
+                                                              return 2407;
                                                             }
                                                         }
                                                       else
                                                      10987654321098765432109876543210
                                                      x0001111xxxxxxxx0000x0xxxxxxxxxx
                                                      fmlal.  */
-                                                  return 2409;
+                                                  return 2410;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      x1001111xxxxxxxx0000x0xxxxxxxxxx
                                                      fmlal.  */
-                                                  return 2413;
+                                                  return 2414;
                                                 }
                                             }
                                           else
                                                      10987654321098765432109876543210
                                                      x0001111xxxxxxxx0100x0xxxxxxxxxx
                                                      fmlsl.  */
-                                                  return 2410;
+                                                  return 2411;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      x1001111xxxxxxxx0100x0xxxxxxxxxx
                                                      fmlsl.  */
-                                                  return 2414;
+                                                  return 2415;
                                                 }
                                             }
                                           else
                                                      10987654321098765432109876543210
                                                      x0101111xxxxxxxx1000x0xxxxxxxxxx
                                                      fmlal2.  */
-                                                  return 2411;
+                                                  return 2412;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      x1101111xxxxxxxx1000x0xxxxxxxxxx
                                                      fmlal2.  */
-                                                  return 2415;
+                                                  return 2416;
                                                 }
                                             }
                                         }
                                                      10987654321098765432109876543210
                                                      x0101111xxxxxxxx1100x0xxxxxxxxxx
                                                      fmlsl2.  */
-                                                  return 2412;
+                                                  return 2413;
                                                 }
                                               else
                                                 {
                                                      10987654321098765432109876543210
                                                      x1101111xxxxxxxx1100x0xxxxxxxxxx
                                                      fmlsl2.  */
-                                                  return 2416;
+                                                  return 2417;
                                                 }
                                             }
                                         }
                                                  10987654321098765432109876543210
                                                  xx001111xxxxxxxx1110x0xxxxxxxxxx
                                                  sdot.  */
-                                              return 2383;
+                                              return 2384;
                                             }
                                           else
                                             {
                                                  10987654321098765432109876543210
                                                  xx101111xxxxxxxx1110x0xxxxxxxxxx
                                                  udot.  */
-                                              return 2382;
+                                              return 2383;
                                             }
                                         }
                                     }
                                                          10987654321098765432109876543210
                                                          xx00111100xxxxxx1111x0xxxxxxxxxx
                                                          sudot.  */
-                                                      return 2460;
+                                                      return 2461;
                                                     }
                                                   else
                                                     {
                                                          10987654321098765432109876543210
                                                          xx00111110xxxxxx1111x0xxxxxxxxxx
                                                          usdot.  */
-                                                      return 2459;
+                                                      return 2460;
                                                     }
                                                 }
                                               else
                                                          10987654321098765432109876543210
                                                          xx00111101xxxxxx1111x0xxxxxxxxxx
                                                          bfdot.  */
-                                                      return 2471;
+                                                      return 2472;
                                                     }
                                                   else
                                                     {
                                                              10987654321098765432109876543210
                                                              x000111111xxxxxx1111x0xxxxxxxxxx
                                                              bfmlalb.  */
-                                                          return 2479;
+                                                          return 2480;
                                                         }
                                                       else
                                                         {
                                                              10987654321098765432109876543210
                                                              x100111111xxxxxx1111x0xxxxxxxxxx
                                                              bfmlalt.  */
-                                                          return 2478;
+                                                          return 2479;
                                                         }
                                                     }
                                                 }
     case 824: return NULL;             /* fsqrt --> NULL.  */
     case 832: value = 833; break;      /* frintz --> frintz.  */
     case 833: return NULL;             /* frintz --> NULL.  */
-    case 825: value = 2475; break;     /* fcvt --> bfcvt.  */
-    case 2475: return NULL;            /* bfcvt --> NULL.  */
+    case 825: value = 2476; break;     /* fcvt --> bfcvt.  */
+    case 2476: return NULL;            /* bfcvt --> NULL.  */
     case 834: value = 835; break;      /* frinta --> frinta.  */
     case 835: return NULL;             /* frinta --> NULL.  */
     case 836: value = 837; break;      /* frintx --> frintx.  */
     case 33:
     case 34:
     case 35:
-    case 215:
+    case 216:
       return aarch64_ext_reglane (self, info, code, inst, errors);
     case 36:
       return aarch64_ext_reglist (self, info, code, inst, errors);
     case 188:
     case 189:
     case 214:
+    case 215:
       return aarch64_ext_imm (self, info, code, inst, errors);
     case 44:
     case 45:
 
   {AARCH64_OPND_CLASS_SVE_REG, "SME_ZA_HV_idx_src", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SME_size_10,FLD_SME_Q,FLD_SME_V,FLD_SME_Rv,FLD_imm4_5}, "an SME horizontal or vertical vector access register"},
   {AARCH64_OPND_CLASS_SVE_REG, "SME_ZA_HV_idx_dest", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SME_size_10,FLD_SME_Q,FLD_SME_V,FLD_SME_Rv,FLD_imm4_2}, "an SME horizontal or vertical vector access register"},
   {AARCH64_OPND_CLASS_PRED_REG, "SME_Pm", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SME_Pm}, "an SVE predicate register"},
+  {AARCH64_OPND_CLASS_SVE_REG, "SME_list_of_64bit_tiles", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SME_zero_mask}, "list of 64-bit ZA element tiles"},
   {AARCH64_OPND_CLASS_IMMEDIATE, "TME_UIMM16", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_imm16}, "a 16-bit unsigned immediate for TME tcancel"},
   {AARCH64_OPND_CLASS_SIMD_ELEMENT, "SM3_IMM2", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SM3_imm2}, "an indexed SM3 vector immediate"},
   {AARCH64_OPND_CLASS_NIL, "", 0, {0}, "DUMMY"},
 
     { 15,  1 }, /* SME_V: (horizontal / vertical tiles), bit 15.  */
     { 13,  2 }, /* SME_Rv: vector select register W12-W15, bits [14:13].  */
     { 13,  3 }, /* SME Pm second source scalable predicate register P0-P7.  */
+    { 0,   8 }, /* SME_zero_mask: list of up to 8 tile names separated by commas [7:0].  */
     { 11,  2 }, /* rotate1: FCMLA immediate rotate.  */
     { 13,  2 }, /* rotate2: Indexed element FCMLA immediate rotate.  */
     { 12,  1 }, /* rotate3: FCADD immediate rotate.  */
   snprintf (buf, size, "[%s, %s%s]", base, offset, tb);
 }
 
+/* Print ZA tiles from imm8 in ZERO instruction.
+
+   The preferred disassembly of this instruction uses the shortest list of tile
+   names that represent the encoded immediate mask.
+
+   For example:
+    * An all-ones immediate is disassembled as {ZA}.
+    * An all-zeros immediate is disassembled as an empty list { }.
+*/
+static void
+print_sme_za_list(char *buf, size_t size, int mask)
+{
+  const char* zan[] = { "za",    "za0.h", "za1.h", "za0.s",
+                        "za1.s", "za2.s", "za3.s", "za0.d",
+                        "za1.d", "za2.d", "za3.d", "za4.d",
+                        "za5.d", "za6.d", "za7.d", " " };
+  const int zan_v[] = { 0xff, 0x55, 0xaa, 0x11,
+                        0x22, 0x44, 0x88, 0x01,
+                        0x02, 0x04, 0x08, 0x10,
+                        0x20, 0x40, 0x80, 0x00 };
+  int i, k;
+  const int ZAN_SIZE = sizeof(zan) / sizeof(zan[0]);
+
+  k = snprintf (buf, size, "{");
+  for (i = 0; i < ZAN_SIZE; i++)
+    {
+      if ((mask & zan_v[i]) == zan_v[i])
+        {
+          mask &= ~zan_v[i];
+          if (k > 1)
+            k += snprintf (buf + k, size - k, ", %s", zan[i]);
+          else
+            k += snprintf (buf + k, size - k, "%s", zan[i]);
+        }
+      if (mask == 0)
+        break;
+    }
+  snprintf (buf + k, size - k, "}");
+}
+
 /* Generate the string representation of the operand OPNDS[IDX] for OPCODE
    in *BUF.  The caller should pass in the maximum size of *BUF in SIZE.
    PC, PCREL_P and ADDRESS are used to pass in and return information about
                 opnd->za_tile_vector.index.imm);
       break;
 
+    case AARCH64_OPND_SME_list_of_64bit_tiles:
+      print_sme_za_list (buf, size, opnd->reg.regno);
+      break;
+
     case AARCH64_OPND_CRn:
     case AARCH64_OPND_CRm:
       snprintf (buf, size, "C%" PRIi64, opnd->imm.value);
 
   FLD_SME_V,
   FLD_SME_Rv,
   FLD_SME_Pm,
+  FLD_SME_zero_mask,
   FLD_rotate1,
   FLD_rotate2,
   FLD_rotate3,
 
   SME_INSN ("mova", 0xc0020000, 0xff3e0200, sme_misc, 0, OP3 (SVE_Zd, SVE_Pg3, SME_ZA_HV_idx_src), OP_SME_BHSDQ_PM_BHSDQ, 0, 0),
   SME_INSN ("mova", 0xc0000000, 0xff3e0010, sme_misc, 0, OP3 (SME_ZA_HV_idx_dest, SVE_Pg3, SVE_Zn), OP_SME_BHSDQ_PM_BHSDQ, 0, 0),
 
+  SME_INSN ("zero", 0xc0080000, 0xffffff00, sme_misc, 0, OP1 (SME_list_of_64bit_tiles), {}, 0, 0),
+
   /* SIMD Dot Product (optional in v8.2-A).  */
   DOT_INSN ("udot", 0x2e009400, 0xbf20fc00, dotproduct, OP3 (Vd, Vn, Vm), QL_V3DOT, F_SIZEQ),
   DOT_INSN ("sdot", 0xe009400,  0xbf20fc00, dotproduct, OP3 (Vd, Vn, Vm), QL_V3DOT, F_SIZEQ),
       "an SME horizontal or vertical vector access register")  \
     Y(PRED_REG, regno, "SME_Pm", 0, F(FLD_SME_Pm),                     \
       "an SVE predicate register")                                     \
+    Y(SVE_REG, imm, "SME_list_of_64bit_tiles", 0,      \
+      F(FLD_SME_zero_mask), "list of 64-bit ZA element tiles")                                 \
     Y(IMMEDIATE, imm, "TME_UIMM16", 0, F(FLD_imm16),                   \
       "a 16-bit unsigned immediate for TME tcancel")                   \
     Y(SIMD_ELEMENT, reglane, "SM3_IMM2", 0, F(FLD_SM3_imm2),           \