[gas/]
authorRichard Sandiford <rdsandiford@googlemail.com>
Mon, 30 Sep 2002 12:04:54 +0000 (12:04 +0000)
committerRichard Sandiford <rdsandiford@googlemail.com>
Mon, 30 Sep 2002 12:04:54 +0000 (12:04 +0000)
* doc/c-mips.texi: Add entries for -march=vr4120,vr4130,vr4181,
vr5400 and vr5500.  Add entry for -mfix-vr4122-bugs.
* config/tc-mips.c (CPU_HAS_DROR, CPU_HAS_ROR): New macros.
(hilo_interlocks): True for CPU_VR5500.
(gpr_interlocks, cop_interlocks): True for CPU_VR5400 and CPU_VR5500.
(mips_fix_vr4122_bugs): New.
(append_insn): Work around 4122 errors if mips_fix_vr4122_bugs.
(mips_emit_delays): Likewise.
(macro2) [M_DROLI]: Use dror or dror32 if CPU_HAS_DROR.
[M_ROLI]: Likewise ror if CPU_HAS_ROR.
(validate_mips_insn, mips_ip): Handle '[', ']', 'e' and '%'.
(OPTION_FIX_VR4122, OPTION_NO_FIX_VR4122): New options.
(md_longopts): Add -mfix-vr4122-bugs and -no-mfix-vr4122-bugs.
(OPTION_ELF_BASE): Bump.
(md_parse_option): Handle the new options.
(mips_cpu_info_table): Add entries for vr4120, vr4130, vr4181,
vr5400 and vr5500.

[gas/testsuite/]
* gas/mips/mips4100.[sd]: Move dmadd16 and madd16 checks to...
* gas/mips/vr4111.[sd]: ...this new test.
* gas/mips/vr4120.[sd],
* gas/mips/vr4122.[sd],
* gas/mips/vr5400.[sd],
* gas/mips/vr5500.[sd]: New tests.
* mips.exp: Run them.

17 files changed:
gas/ChangeLog
gas/config/tc-mips.c
gas/doc/c-mips.texi
gas/testsuite/ChangeLog
gas/testsuite/gas/mips/mips.exp
gas/testsuite/gas/mips/mips4100.d
gas/testsuite/gas/mips/mips4100.s
gas/testsuite/gas/mips/vr4111.d [new file with mode: 0644]
gas/testsuite/gas/mips/vr4111.s [new file with mode: 0644]
gas/testsuite/gas/mips/vr4120.d [new file with mode: 0644]
gas/testsuite/gas/mips/vr4120.s [new file with mode: 0644]
gas/testsuite/gas/mips/vr4122.d [new file with mode: 0644]
gas/testsuite/gas/mips/vr4122.s [new file with mode: 0644]
gas/testsuite/gas/mips/vr5400.d [new file with mode: 0644]
gas/testsuite/gas/mips/vr5400.s [new file with mode: 0644]
gas/testsuite/gas/mips/vr5500.d [new file with mode: 0644]
gas/testsuite/gas/mips/vr5500.s [new file with mode: 0644]

index 13ed1e8545aeb4640ef77c442398b1bf0435ec86..ec821c65ba6b909ce11b5f7becfc7321c28c9a6c 100644 (file)
@@ -1,3 +1,29 @@
+2002-09-30  Gavin Romig-Koch  <gavin@redhat.com>
+            Ken Raeburn  <raeburn@cygnus.com>
+            Aldy Hernandez  <aldyh@redhat.com>
+            DJ Delorie  <dj@redhat.com>
+            Michael Meissner  <meissner@redhat.com>
+            Eric Christopher  <echristo@redhat.com>
+            Richard Sandiford  <rsandifo@redhat.com>
+
+       * doc/c-mips.texi: Add entries for -march=vr4120,vr4130,vr4181,
+       vr5400 and vr5500.  Add entry for -mfix-vr4122-bugs.
+       * config/tc-mips.c (CPU_HAS_DROR, CPU_HAS_ROR): New macros.
+       (hilo_interlocks): True for CPU_VR5500.
+       (gpr_interlocks, cop_interlocks): True for CPU_VR5400 and CPU_VR5500.
+       (mips_fix_vr4122_bugs): New.
+       (append_insn): Work around 4122 errors if mips_fix_vr4122_bugs.
+       (mips_emit_delays): Likewise.
+       (macro2) [M_DROLI]: Use dror or dror32 if CPU_HAS_DROR.
+       [M_ROLI]: Likewise ror if CPU_HAS_ROR.
+       (validate_mips_insn, mips_ip): Handle '[', ']', 'e' and '%'.
+       (OPTION_FIX_VR4122, OPTION_NO_FIX_VR4122): New options.
+       (md_longopts): Add -mfix-vr4122-bugs and -no-mfix-vr4122-bugs.
+       (OPTION_ELF_BASE): Bump.
+       (md_parse_option): Handle the new options.
+       (mips_cpu_info_table): Add entries for vr4120, vr4130, vr4181,
+       vr5400 and vr5500.
+
 2002-09-29  H.J. Lu <hjl@gnu.org>
 
        * config/tc-mips.c (md_apply_fix3): Subtract the symbol value
index 7c8be079a6075a58fcefc3e493042f4b554e69b4..d88c9257530284ba5524bd8509dd7965de31a462 100644 (file)
@@ -296,11 +296,18 @@ static int mips_32bitmode = 0;
 #define CPU_HAS_MDMX(cpu)      (false                 \
                                 )
 
+/* True if CPU has a dror instruction.  */
+#define CPU_HAS_DROR(CPU)      ((CPU) == CPU_VR5400 || (CPU) == CPU_VR5500)
+
+/* True if CPU has a ror instruction.  */
+#define CPU_HAS_ROR(CPU)       CPU_HAS_DROR (CPU)
+
 /* Whether the processor uses hardware interlocks to protect
    reads from the HI and LO registers, and thus does not
    require nops to be inserted.  */
 
 #define hilo_interlocks (mips_arch == CPU_R4010                       \
+                         || mips_arch == CPU_VR5500                   \
                          || mips_arch == CPU_SB1                      \
                          )
 
@@ -308,12 +315,16 @@ static int mips_32bitmode = 0;
    from the GPRs, and thus does not require nops to be inserted.  */
 #define gpr_interlocks \
   (mips_opts.isa != ISA_MIPS1  \
+   || mips_arch == CPU_VR5400  \
+   || mips_arch == CPU_VR5500  \
    || mips_arch == CPU_R3900)
 
 /* As with other "interlocks" this is used by hardware that has FP
    (co-processor) interlocks.  */
 /* Itbl support may require additional care here.  */
 #define cop_interlocks (mips_arch == CPU_R4300                        \
+                        || mips_arch == CPU_VR5400                    \
+                        || mips_arch == CPU_VR5500                    \
                         || mips_arch == CPU_SB1                       \
                        )
 
@@ -550,6 +561,8 @@ static const unsigned int mips16_to_32_reg_map[] =
 {
   16, 17, 2, 3, 4, 5, 6, 7
 };
+
+static int mips_fix_4122_bugs;
 \f
 /* Since the MIPS does not have multiple forms of PC relative
    instructions, we do not have to do relaxing as is done on other
@@ -1689,6 +1702,50 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi)
       if (prev_prev_nop && nops == 0)
        ++nops;
 
+      if (mips_fix_4122_bugs && prev_insn.insn_mo->name)
+       {
+         /* We're out of bits in pinfo, so we must resort to string
+            ops here.  Shortcuts are selected based on opcodes being
+            limited to the VR4122 instruction set.  */
+         int min_nops = 0;
+         const char *pn = prev_insn.insn_mo->name;
+         const char *tn = ip->insn_mo->name;
+         if (strncmp(pn, "macc", 4) == 0
+             || strncmp(pn, "dmacc", 5) == 0)
+           {
+             /* Errata 21 - [D]DIV[U] after [D]MACC */
+             if (strstr (tn, "div"))
+               {
+                 min_nops = 1;
+               }
+
+             /* Errata 23 - Continuous DMULT[U]/DMACC instructions */
+             if (pn[0] == 'd' /* dmacc */
+                 && (strncmp(tn, "dmult", 5) == 0
+                     || strncmp(tn, "dmacc", 5) == 0))
+               {
+                 min_nops = 1;
+               }
+
+             /* Errata 24 - MT{LO,HI} after [D]MACC */
+             if (strcmp (tn, "mtlo") == 0
+                 || strcmp (tn, "mthi") == 0)
+               {
+                 min_nops = 1;
+               }
+
+           }
+         else if (strncmp(pn, "dmult", 5) == 0
+                  && (strncmp(tn, "dmult", 5) == 0
+                      || strncmp(tn, "dmacc", 5) == 0))
+           {
+             /* Here is the rest of errata 23.  */
+             min_nops = 1;
+           }
+         if (nops < min_nops)
+           nops = min_nops;
+       }
+
       /* If we are being given a nop instruction, don't bother with
         one of the nops we would otherwise output.  This will only
         happen when a nop instruction is used with mips_optimize set
@@ -2586,6 +2643,20 @@ mips_emit_delays (insns)
            ++nops;
        }
 
+      if (mips_fix_4122_bugs && prev_insn.insn_mo->name)
+       {
+         int min_nops = 0;
+         const char *pn = prev_insn.insn_mo->name;
+         if (strncmp(pn, "macc", 4) == 0
+             || strncmp(pn, "dmacc", 5) == 0
+             || strncmp(pn, "dmult", 5) == 0)
+           {
+             min_nops = 1;
+           }
+         if (nops < min_nops)
+           nops = min_nops;
+       }
+
       if (nops > 0)
        {
          struct insn_label_list *l;
@@ -6714,6 +6785,17 @@ macro2 (ip)
        if (imm_expr.X_op != O_constant)
          as_bad (_("rotate count too large"));
        rot = imm_expr.X_add_number & 0x3f;
+       if (CPU_HAS_DROR (mips_arch))
+         {
+           rot = (64 - rot) & 0x3f;
+           if (rot >= 32)
+             macro_build ((char *) NULL, &icnt, NULL, "dror32",
+                          "d,w,<", dreg, sreg, rot - 32);
+           else
+             macro_build ((char *) NULL, &icnt, NULL, "dror",
+                          "d,w,<", dreg, sreg, rot);
+           break;
+         }
        if (rot == 0)
          macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrl",
                       "d,w,<", dreg, sreg, 0);
@@ -6741,6 +6823,12 @@ macro2 (ip)
        if (imm_expr.X_op != O_constant)
          as_bad (_("rotate count too large"));
        rot = imm_expr.X_add_number & 0x1f;
+       if (CPU_HAS_ROR (mips_arch))
+         {
+           macro_build ((char *) NULL, &icnt, NULL, "ror",
+                        "d,w,<", dreg, sreg, (32 - rot) & 0x1f);
+           break;
+         }
        if (rot == 0)
          macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
                       "d,w,<", dreg, sreg, 0);
@@ -7716,6 +7804,10 @@ validate_mips_insn (opc)
       case 'P': USE_BITS (OP_MASK_PERFREG,     OP_SH_PERFREG); break;
       case 'U': USE_BITS (OP_MASK_RD,           OP_SH_RD);
                USE_BITS (OP_MASK_RT,           OP_SH_RT);      break;
+      case 'e': USE_BITS (OP_MASK_VECBYTE,     OP_SH_VECBYTE); break;
+      case '%': USE_BITS (OP_MASK_VECALIGN,    OP_SH_VECALIGN); break;
+      case '[': break;
+      case ']': break;
       default:
        as_bad (_("internal: bad mips opcode (unknown operand type `%c'): %s %s"),
                c, opc->name, opc->args);
@@ -7907,6 +7999,8 @@ mips_ip (str, ip)
                return;
 
            case ')':           /* these must match exactly */
+           case '[':
+           case ']':
              if (*s++ == *args)
                continue;
              break;
@@ -8828,6 +8922,41 @@ mips_ip (str, ip)
              ip->insn_opcode |= c;
              continue;
 
+           case 'e':
+             /* Must be at least one digit.  */
+             my_getExpression (&imm_expr, s);
+             check_absolute_expr (ip, &imm_expr);
+
+             if ((unsigned long) imm_expr.X_add_number
+                 > (unsigned long) OP_MASK_VECBYTE)
+               {
+                 as_bad (_("bad byte vector index (%ld)"),
+                          (long) imm_expr.X_add_number);
+                 imm_expr.X_add_number = 0;
+               }
+
+             ip->insn_opcode |= imm_expr.X_add_number << OP_SH_VECBYTE;
+             imm_expr.X_op = O_absent;
+             s = expr_end;
+             continue;
+
+           case '%':
+             my_getExpression (&imm_expr, s);
+             check_absolute_expr (ip, &imm_expr);
+
+             if ((unsigned long) imm_expr.X_add_number
+                 > (unsigned long) OP_MASK_VECALIGN)
+               {
+                 as_bad (_("bad byte vector index (%ld)"),
+                          (long) imm_expr.X_add_number);
+                 imm_expr.X_add_number = 0;
+               }
+
+             ip->insn_opcode |= imm_expr.X_add_number << OP_SH_VECALIGN;
+             imm_expr.X_op = O_absent;
+             s = expr_end;
+             continue;
+
            default:
              as_bad (_("bad char = '%c'\n"), *args);
              internalError ();
@@ -9992,8 +10121,12 @@ struct option md_longopts[] =
   {"mdmx", no_argument, NULL, OPTION_MDMX},
 #define OPTION_NO_MDMX (OPTION_MD_BASE + 36)
   {"no-mdmx", no_argument, NULL, OPTION_NO_MDMX},
+#define OPTION_FIX_VR4122 (OPTION_MD_BASE + 37)
+#define OPTION_NO_FIX_VR4122 (OPTION_MD_BASE + 38)
+  {"mfix-vr4122-bugs",    no_argument, NULL, OPTION_FIX_VR4122},
+  {"no-mfix-vr4122-bugs", no_argument, NULL, OPTION_NO_FIX_VR4122},
 #ifdef OBJ_ELF
-#define OPTION_ELF_BASE    (OPTION_MD_BASE + 37)
+#define OPTION_ELF_BASE    (OPTION_MD_BASE + 39)
 #define OPTION_CALL_SHARED (OPTION_ELF_BASE + 0)
   {"KPIC",        no_argument, NULL, OPTION_CALL_SHARED},
   {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
@@ -10194,6 +10327,14 @@ md_parse_option (c, arg)
       g_switch_value = 0x7fffffff;
       break;
 
+    case OPTION_FIX_VR4122:
+      mips_fix_4122_bugs = 1;
+      break;
+
+    case OPTION_NO_FIX_VR4122:
+      mips_fix_4122_bugs = 0;
+      break;
+
 #ifdef OBJ_ELF
       /* When generating ELF code, we permit -KPIC and -call_shared to
         select SVR4_PIC, and -non_shared to select no PIC.  This is
@@ -13644,6 +13785,9 @@ static const struct mips_cpu_info mips_cpu_info_table[] =
   { "r4010",          0,      ISA_MIPS2,      CPU_R4010 },
   { "vr4100",         0,      ISA_MIPS3,      CPU_VR4100 },
   { "vr4111",         0,      ISA_MIPS3,      CPU_R4111 },
+  { "vr4120",         0,      ISA_MIPS3,      CPU_VR4120 },
+  { "vr4130",         0,      ISA_MIPS3,      CPU_VR4120 },
+  { "vr4181",         0,      ISA_MIPS3,      CPU_R4111 },
   { "vr4300",         0,      ISA_MIPS3,      CPU_R4300 },
   { "r4400",          0,      ISA_MIPS3,      CPU_R4400 },
   { "r4600",          0,      ISA_MIPS3,      CPU_R4600 },
@@ -13655,6 +13799,8 @@ static const struct mips_cpu_info mips_cpu_info_table[] =
   { "r10000",         0,      ISA_MIPS4,      CPU_R10000 },
   { "r12000",         0,      ISA_MIPS4,      CPU_R12000 },
   { "vr5000",         0,      ISA_MIPS4,      CPU_R5000 },
+  { "vr5400",         0,      ISA_MIPS4,      CPU_VR5400 },
+  { "vr5500",         0,      ISA_MIPS4,      CPU_VR5500 },
   { "rm5200",         0,      ISA_MIPS4,      CPU_R5000 },
   { "rm5230",         0,      ISA_MIPS4,      CPU_R5000 },
   { "rm5231",         0,      ISA_MIPS4,      CPU_R5000 },
index b19c09b3b0ccd332eb97e5b4b46d79eec6541c93..6b82fd0c9575d5fc52e6b6eed9e8557e56db986f 100644 (file)
@@ -116,6 +116,12 @@ This tells the assembler to accept MDMX instructions.
 Cause nops to be inserted if the read of the destination register
 of an mfhi or mflo instruction occurs in the following two instructions.
 
+@item -mfix-vr4122-bugs
+@itemx -no-mfix-vr4122-bugs
+Insert @samp{nop} instructions to avoid errors in certain versions of
+the vr4122 core.  This option is intended to be used on GCC-generated
+code: it is not designed to catch errors in hand-written assembler code.
+
 @item -m4010
 @itemx -no-m4010
 Generate code for the LSI @sc{r4010} chip.  This tells the assembler to
@@ -152,6 +158,9 @@ understood.  Valid @var{cpu} value are:
 4010,
 4100,
 4111,
+vr4120,
+vr4130,
+vr4181,
 4300,
 4400,
 4600,
@@ -162,6 +171,8 @@ rm5230,
 rm5231,
 rm5261,
 rm5721,
+vr5400,
+vr5500,
 6000,
 rm7000,
 8000,
index 1336d7d692164f131eeea0287f9331036712cafa..e2ac1236b9b9256bc30c65bc8bfc7153b5c6b44b 100644 (file)
@@ -1,3 +1,19 @@
+2002-09-30  Gavin Romig-Koch  <gavin@redhat.com>
+            Ken Raeburn  <raeburn@cygnus.com>
+            Aldy Hernandez  <aldyh@redhat.com>
+            DJ Delorie  <dj@redhat.com>
+            Michael Meissner  <meissner@redhat.com>
+            Eric Christopher  <echristo@redhat.com>
+            Richard Sandiford  <rsandifo@redhat.com>
+
+       * gas/mips/mips4100.[sd]: Move dmadd16 and madd16 checks to...
+       * gas/mips/vr4111.[sd]: ...this new test.
+       * gas/mips/vr4120.[sd],
+       * gas/mips/vr4122.[sd],
+       * gas/mips/vr5400.[sd],
+       * gas/mips/vr5500.[sd]: New tests.
+       * mips.exp: Run them.
+
 2002-09-27  Kaz Kojima  <kkojima@rr.iij4u.or.jp>
 
        * gas/sh/pcrel2.s: New.
index aef19083114086c5296c4265b033c2a2a920a92f..c5bd38b9af9caf9f4b17c59b4cff42fa3551d208 100644 (file)
@@ -153,6 +153,11 @@ if { [istarget mips*-*-*] } then {
     run_dump_test "mips4010"
     run_dump_test "mips4650"
     run_dump_test "mips4100"
+    run_dump_test "vr4111"
+    run_dump_test "vr4120"
+    run_dump_test "vr4122"
+    run_dump_test "vr5400"
+    run_dump_test "vr5500"
     run_dump_test "perfcount"
     run_dump_test "lineno"
     run_dump_test "sync"
index 4ef2e19342362688db7dfae7e2471144d19e289e..9c0c673eae5b4c845f23cadd21b346b4d9189463 100644 (file)
@@ -6,10 +6,7 @@
 .*: +file format .*mips.*
 
 Disassembly of section \.text:
-0+0000 <stuff> dmadd16 a0,a1
-       ...
-0+000c <stuff\+0xc> madd16     a1,a2
-0+0010 <stuff\+0x10> hibernate
-0+0014 <stuff\+0x14> standby
-0+0018 <stuff\+0x18> suspend
-0+001c <stuff\+0x1c> nop
+0+0000 <stuff> hibernate
+0+0004 <stuff\+0x4> standby
+0+0008 <stuff\+0x8> suspend
+0+000c <stuff\+0xc> nop
index b60db9626de054dcdd452ab0c14abf3200ef1e6f..42ae5776b3f227ea861dcf791aa5ed2404eb3683 100644 (file)
@@ -2,8 +2,6 @@
 
 stuff:
        .ent stuff
-       dmadd16 $4,$5
-       madd16 $5,$6
        hibernate
        standby
        suspend
diff --git a/gas/testsuite/gas/mips/vr4111.d b/gas/testsuite/gas/mips/vr4111.d
new file mode 100644 (file)
index 0000000..6c8d445
--- /dev/null
@@ -0,0 +1,11 @@
+#objdump: -dr
+#name: MIPS VR4111
+#as: -march=vr4111
+
+.*: +file format .*mips.*
+
+Disassembly of section \.text:
+0+000 <\.text>:
+ + 0:  00850029        dmadd16 a0,a1
+       \.\.\.
+ + c:  00a60028        madd16  a1,a2
diff --git a/gas/testsuite/gas/mips/vr4111.s b/gas/testsuite/gas/mips/vr4111.s
new file mode 100644 (file)
index 0000000..0a2ffc6
--- /dev/null
@@ -0,0 +1,2 @@
+       dmadd16 $4,$5
+       madd16 $5,$6
diff --git a/gas/testsuite/gas/mips/vr4120.d b/gas/testsuite/gas/mips/vr4120.d
new file mode 100644 (file)
index 0000000..7c9bcd9
--- /dev/null
@@ -0,0 +1,29 @@
+#objdump: -dr
+#name: MIPS VR4120
+#as: -march=vr4120
+
+.*: +file format .*mips.*
+
+Disassembly of section \.text:
+0+000 <\.text>:
+ + 0:  00002012        mflo    a0
+       \.\.\.
+ + c:  00a62029        dmacc   a0,a1,a2
+ +10:  00a62229        dmacchi a0,a1,a2
+ +14:  00a62629        dmacchis        a0,a1,a2
+ +18:  00a62269        dmacchiu        a0,a1,a2
+ +1c:  00a62669        dmacchius       a0,a1,a2
+ +20:  00a62429        dmaccs  a0,a1,a2
+ +24:  00a62069        dmaccu  a0,a1,a2
+ +28:  00a62469        dmaccus a0,a1,a2
+ +2c:  00002012        mflo    a0
+       \.\.\.
+ +38:  00a62028        macc    a0,a1,a2
+ +3c:  00a62228        macchi  a0,a1,a2
+ +40:  00a62628        macchis a0,a1,a2
+ +44:  00a62268        macchiu a0,a1,a2
+ +48:  00a62668        macchius        a0,a1,a2
+ +4c:  00a62428        maccs   a0,a1,a2
+ +50:  00a62068        maccu   a0,a1,a2
+ +54:  00a62468        maccus  a0,a1,a2
+#...
diff --git a/gas/testsuite/gas/mips/vr4120.s b/gas/testsuite/gas/mips/vr4120.s
new file mode 100644 (file)
index 0000000..7550f9b
--- /dev/null
@@ -0,0 +1,19 @@
+       # Include mflos to check for nop insertion.
+       mflo        $4
+       dmacc       $4,$5,$6
+       dmacchi     $4,$5,$6
+       dmacchis    $4,$5,$6
+       dmacchiu    $4,$5,$6
+       dmacchius   $4,$5,$6
+       dmaccs      $4,$5,$6
+       dmaccu      $4,$5,$6
+       dmaccus     $4,$5,$6
+       mflo        $4
+       macc        $4,$5,$6
+       macchi      $4,$5,$6
+       macchis     $4,$5,$6
+       macchiu     $4,$5,$6
+       macchius    $4,$5,$6
+       maccs       $4,$5,$6
+       maccu       $4,$5,$6
+       maccus      $4,$5,$6
diff --git a/gas/testsuite/gas/mips/vr4122.d b/gas/testsuite/gas/mips/vr4122.d
new file mode 100644 (file)
index 0000000..7c03a2d
--- /dev/null
@@ -0,0 +1,68 @@
+#objdump: -dz --prefix-addresses -m mips:4120
+#as: -march=vr4120 -mtune=vr4120 -mfix-vr4122-bugs
+#name: MIPS vr4122 workarounds
+
+.*: +file format .*mips.*
+
+Disassembly of section .text:
+0+0000 <[^>]*> macc    a0,a1,a2
+0+0004 <[^>]*> nop
+0+0008 <[^>]*> div     zero,a3,t0
+0+000c <[^>]*> or      a0,a0,a1
+0+0010 <[^>]*> dmacc   a0,a1,a2
+0+0014 <[^>]*> nop
+0+0018 <[^>]*> div     zero,a3,t0
+0+001c <[^>]*> or      a0,a0,a1
+0+0020 <[^>]*> macc    a0,a1,a2
+0+0024 <[^>]*> nop
+0+0028 <[^>]*> divu    zero,a3,t0
+0+002c <[^>]*> or      a0,a0,a1
+0+0030 <[^>]*> dmacc   a0,a1,a2
+0+0034 <[^>]*> nop
+0+0038 <[^>]*> divu    zero,a3,t0
+0+003c <[^>]*> or      a0,a0,a1
+0+0040 <[^>]*> macc    a0,a1,a2
+0+0044 <[^>]*> nop
+0+0048 <[^>]*> ddiv    zero,a3,t0
+0+004c <[^>]*> or      a0,a0,a1
+0+0050 <[^>]*> dmacc   a0,a1,a2
+0+0054 <[^>]*> nop
+0+0058 <[^>]*> ddiv    zero,a3,t0
+0+005c <[^>]*> or      a0,a0,a1
+0+0060 <[^>]*> macc    a0,a1,a2
+0+0064 <[^>]*> nop
+0+0068 <[^>]*> ddivu   zero,a3,t0
+0+006c <[^>]*> or      a0,a0,a1
+0+0070 <[^>]*> dmacc   a0,a1,a2
+0+0074 <[^>]*> nop
+0+0078 <[^>]*> ddivu   zero,a3,t0
+0+007c <[^>]*> or      a0,a0,a1
+0+0080 <[^>]*> dmult   a0,a1
+0+0084 <[^>]*> nop
+0+0088 <[^>]*> dmult   a2,a3
+0+008c <[^>]*> or      a0,a0,a1
+0+0090 <[^>]*> dmultu  a0,a1
+0+0094 <[^>]*> nop
+0+0098 <[^>]*> dmultu  a2,a3
+0+009c <[^>]*> or      a0,a0,a1
+0+00a0 <[^>]*> dmacc   a0,a1,a2
+0+00a4 <[^>]*> nop
+0+00a8 <[^>]*> dmacc   a2,a3,t0
+0+00ac <[^>]*> or      a0,a0,a1
+0+00b0 <[^>]*> dmult   a0,a1
+0+00b4 <[^>]*> nop
+0+00b8 <[^>]*> dmacc   a2,a3,t0
+0+00bc <[^>]*> or      a0,a0,a1
+0+00c0 <[^>]*> macc    a0,a1,a2
+0+00c4 <[^>]*> nop
+0+00c8 <[^>]*> mtlo    a3
+0+00cc <[^>]*> dmacc   a0,a1,a2
+0+00d0 <[^>]*> nop
+0+00d4 <[^>]*> mtlo    a3
+0+00d8 <[^>]*> macc    a0,a1,a2
+0+00dc <[^>]*> nop
+0+00e0 <[^>]*> mthi    a3
+0+00e4 <[^>]*> dmacc   a0,a1,a2
+0+00e8 <[^>]*> nop
+0+00ec <[^>]*> mthi    a3
+#...
diff --git a/gas/testsuite/gas/mips/vr4122.s b/gas/testsuite/gas/mips/vr4122.s
new file mode 100644 (file)
index 0000000..6c38c88
--- /dev/null
@@ -0,0 +1,65 @@
+# Test that certain vr4122 hardware bugs are worked around.
+# Note that we only work around bugs gcc may generate.
+
+r21:
+       macc    $4,$5,$6
+       div     $0,$7,$8
+       or      $4,$5
+
+       dmacc   $4,$5,$6
+       div     $0,$7,$8
+       or      $4,$5
+
+       macc    $4,$5,$6
+       divu    $0,$7,$8
+       or      $4,$5
+
+       dmacc   $4,$5,$6
+       divu    $0,$7,$8
+       or      $4,$5
+
+       macc    $4,$5,$6
+       ddiv    $0,$7,$8
+       or      $4,$5
+
+       dmacc   $4,$5,$6
+       ddiv    $0,$7,$8
+       or      $4,$5
+
+       macc    $4,$5,$6
+       ddivu   $0,$7,$8
+       or      $4,$5
+
+       dmacc   $4,$5,$6
+       ddivu   $0,$7,$8
+       or      $4,$5
+
+r23:
+       dmult   $4,$5
+       dmult   $6,$7
+       or      $4,$5
+
+       dmultu  $4,$5
+       dmultu  $6,$7
+       or      $4,$5
+
+       dmacc   $4,$5,$6
+       dmacc   $6,$7,$8
+       or      $4,$5
+
+       dmult   $4,$5
+       dmacc   $6,$7,$8
+       or      $4,$5
+
+r24:
+       macc    $4,$5,$6
+       mtlo    $7
+
+       dmacc   $4,$5,$6
+       mtlo    $7
+
+       macc    $4,$5,$6
+       mthi    $7
+
+       dmacc   $4,$5,$6
+       mthi    $7
diff --git a/gas/testsuite/gas/mips/vr5400.d b/gas/testsuite/gas/mips/vr5400.d
new file mode 100644 (file)
index 0000000..9d5d1ee
--- /dev/null
@@ -0,0 +1,130 @@
+#objdump: -dr --prefix-addresses
+#name: MIPS VR5400
+#as: -march=vr5400
+
+.*: +file format .*mips.*
+
+Disassembly of section \.text:
+0+0000 <stuff> mul     a0,a1,a2
+0+0004 <stuff\+0x4> mulu       a0,a1,a2
+0+0008 <stuff\+0x8> mulhi      a0,a1,a2
+0+000c <stuff\+0xc> mulhiu     a0,a1,a2
+0+0010 <stuff\+0x10> muls      a0,a1,a2
+0+0014 <stuff\+0x14> mulsu     a0,a1,a2
+0+0018 <stuff\+0x18> mulshi    a0,a1,a2
+0+001c <stuff\+0x1c> mulshiu   a0,a1,a2
+0+0020 <stuff\+0x20> macc      a0,a1,a2
+0+0024 <stuff\+0x24> maccu     a0,a1,a2
+0+0028 <stuff\+0x28> macchi    a0,a1,a2
+0+002c <stuff\+0x2c> macchiu   a0,a1,a2
+0+0030 <stuff\+0x30> msac      a0,a1,a2
+0+0034 <stuff\+0x34> msacu     a0,a1,a2
+0+0038 <stuff\+0x38> msachi    a0,a1,a2
+0+003c <stuff\+0x3c> msachiu   a0,a1,a2
+0+0040 <stuff\+0x40> ror       a0,a1,0x19
+0+0044 <stuff\+0x44> rorv      a0,a1,a2
+0+0048 <stuff\+0x48> dror      a0,a1,0x19
+0+004c <stuff\+0x4c> dror32    a0,a1,0x19
+0+0050 <stuff\+0x50> dror32    a0,a1,0x19
+0+0054 <stuff\+0x54> drorv     a0,a1,a2
+0+0058 <stuff\+0x58> dbreak
+0+005c <stuff\+0x5c> dret
+0+0060 <stuff\+0x60> mfdr      v1,\$3
+0+0064 <stuff\+0x64> mtdr      v1,\$3
+0+0068 <stuff\+0x68> mfpc      a0,1
+0+006c <stuff\+0x6c> mfps      a0,1
+0+0070 <stuff\+0x70> mtpc      a0,1
+0+0074 <stuff\+0x74> mtps      a0,1
+0+0078 <stuff\+0x78> add\.ob   \$f0,\$f1,\$f2
+0+007c <stuff\+0x7c> add\.ob   \$f3,\$f4,\$f6\[2\]
+0+0080 <stuff\+0x80> add\.ob   \$f6,\$f5,0xf
+0+0084 <stuff\+0x84> add\.ob   \$f3,\$f7,0x1f
+0+0088 <stuff\+0x88> and\.ob   \$f0,\$f1,\$f2
+0+008c <stuff\+0x8c> and\.ob   \$f3,\$f4,\$f6\[2\]
+0+0090 <stuff\+0x90> and\.ob   \$f6,\$f5,0xf
+0+0094 <stuff\+0x94> and\.ob   \$f3,\$f7,0x1f
+0+0098 <stuff\+0x98> c\.eq\.ob \$f0,\$f2
+0+009c <stuff\+0x9c> c\.eq\.ob \$f3,\$f6\[2\]
+0+00a0 <stuff\+0xa0> c\.eq\.ob \$f6,0xf
+0+00a4 <stuff\+0xa4> c\.eq\.ob \$f3,0x1f
+0+00a8 <stuff\+0xa8> c\.le\.ob \$f0,\$f2
+0+00ac <stuff\+0xac> c\.le\.ob \$f3,\$f6\[2\]
+0+00b0 <stuff\+0xb0> c\.le\.ob \$f6,0xf
+0+00b4 <stuff\+0xb4> c\.le\.ob \$f3,0x1f
+0+00b8 <stuff\+0xb8> c\.lt\.ob \$f0,\$f2
+0+00bc <stuff\+0xbc> c\.lt\.ob \$f3,\$f6\[2\]
+0+00c0 <stuff\+0xc0> c\.lt\.ob \$f6,0xf
+0+00c4 <stuff\+0xc4> c\.lt\.ob \$f3,0x1f
+0+00c8 <stuff\+0xc8> max\.ob   \$f0,\$f1,\$f2
+0+00cc <stuff\+0xcc> max\.ob   \$f3,\$f4,\$f6\[2\]
+0+00d0 <stuff\+0xd0> max\.ob   \$f6,\$f5,0xf
+0+00d4 <stuff\+0xd4> max\.ob   \$f3,\$f7,0x1f
+0+00d8 <stuff\+0xd8> min\.ob   \$f0,\$f1,\$f2
+0+00dc <stuff\+0xdc> min\.ob   \$f3,\$f4,\$f6\[2\]
+0+00e0 <stuff\+0xe0> min\.ob   \$f6,\$f5,0xf
+0+00e4 <stuff\+0xe4> min\.ob   \$f3,\$f7,0x1f
+0+00e8 <stuff\+0xe8> mul\.ob   \$f0,\$f1,\$f2
+0+00ec <stuff\+0xec> mul\.ob   \$f3,\$f4,\$f6\[2\]
+0+00f0 <stuff\+0xf0> mul\.ob   \$f6,\$f5,0xf
+0+00f4 <stuff\+0xf4> mul\.ob   \$f3,\$f7,0x1f
+0+00f8 <stuff\+0xf8> mula\.ob  \$f0,\$f2
+0+00fc <stuff\+0xfc> mula\.ob  \$f3,\$f6\[2\]
+0+0100 <stuff\+0x100> mula\.ob \$f6,0xf
+0+0104 <stuff\+0x104> mula\.ob \$f3,0x1f
+0+0108 <stuff\+0x108> mull\.ob \$f0,\$f2
+0+010c <stuff\+0x10c> mull\.ob \$f3,\$f6\[2\]
+0+0110 <stuff\+0x110> mull\.ob \$f6,0xf
+0+0114 <stuff\+0x114> mull\.ob \$f3,0x1f
+0+0118 <stuff\+0x118> muls\.ob \$f0,\$f2
+0+011c <stuff\+0x11c> muls\.ob \$f3,\$f6\[2\]
+0+0120 <stuff\+0x120> muls\.ob \$f6,0xf
+0+0124 <stuff\+0x124> muls\.ob \$f3,0x1f
+0+0128 <stuff\+0x128> mulsl\.ob        \$f0,\$f2
+0+012c <stuff\+0x12c> mulsl\.ob        \$f3,\$f6\[2\]
+0+0130 <stuff\+0x130> mulsl\.ob        \$f6,0xf
+0+0134 <stuff\+0x134> mulsl\.ob        \$f3,0x1f
+0+0138 <stuff\+0x138> nor\.ob  \$f0,\$f1,\$f2
+0+013c <stuff\+0x13c> nor\.ob  \$f3,\$f4,\$f6\[2\]
+0+0140 <stuff\+0x140> nor\.ob  \$f6,\$f5,0xf
+0+0144 <stuff\+0x144> nor\.ob  \$f3,\$f7,0x1f
+0+0148 <stuff\+0x148> or\.ob   \$f0,\$f1,\$f2
+0+014c <stuff\+0x14c> or\.ob   \$f3,\$f4,\$f6\[2\]
+0+0150 <stuff\+0x150> or\.ob   \$f6,\$f5,0xf
+0+0154 <stuff\+0x154> or\.ob   \$f3,\$f7,0x1f
+0+0158 <stuff\+0x158> pickf\.ob        \$f0,\$f1,\$f2
+0+015c <stuff\+0x15c> pickf\.ob        \$f3,\$f4,\$f6\[2\]
+0+0160 <stuff\+0x160> pickf\.ob        \$f6,\$f5,0xf
+0+0164 <stuff\+0x164> pickf\.ob        \$f3,\$f7,0x1f
+0+0168 <stuff\+0x168> pickt\.ob        \$f0,\$f1,\$f2
+0+016c <stuff\+0x16c> pickt\.ob        \$f3,\$f4,\$f6\[2\]
+0+0170 <stuff\+0x170> pickt\.ob        \$f6,\$f5,0xf
+0+0174 <stuff\+0x174> pickt\.ob        \$f3,\$f7,0x1f
+0+0178 <stuff\+0x178> sub\.ob  \$f0,\$f1,\$f2
+0+017c <stuff\+0x17c> sub\.ob  \$f3,\$f4,\$f6\[2\]
+0+0180 <stuff\+0x180> sub\.ob  \$f6,\$f5,0xf
+0+0184 <stuff\+0x184> sub\.ob  \$f3,\$f7,0x1f
+0+0188 <stuff\+0x188> xor\.ob  \$f0,\$f1,\$f2
+0+018c <stuff\+0x18c> xor\.ob  \$f3,\$f4,\$f6\[2\]
+0+0190 <stuff\+0x190> xor\.ob  \$f6,\$f5,0xf
+0+0194 <stuff\+0x194> xor\.ob  \$f3,\$f7,0x1f
+0+0198 <stuff\+0x198> alni\.ob \$f1,\$f2,\$f3,5
+0+019c <stuff\+0x19c> shfl\.mixh\.ob   \$f1,\$f2,\$f3
+0+01a0 <stuff\+0x1a0> shfl\.mixl\.ob   \$f1,\$f2,\$f3
+0+01a4 <stuff\+0x1a4> bc2tl    0+4324 <stuff\+0x4324>
+0+01a8 <stuff\+0x1a8> shfl\.pacl\.ob   \$f1,\$f2,\$f3
+0+01ac <stuff\+0x1ac> sll\.ob  \$f2,\$f4,\$f5\[3\]
+0+01b0 <stuff\+0x1b0> sll\.ob  \$f3,\$f6,0xe
+0+01b4 <stuff\+0x1b4> srl\.ob  \$f2,\$f4,\$f5\[3\]
+0+01b8 <stuff\+0x1b8> srl\.ob  \$f3,\$f6,0xe
+0+01bc <stuff\+0x1bc> rzu\.ob  \$f2,0xd
+0+01c0 <stuff\+0x1c0> rach\.ob \$f2
+0+01c4 <stuff\+0x1c4> racl\.ob \$f2
+0+01c8 <stuff\+0x1c8> bc2f     0+04c8 <stuff\+0x4c8>
+0+01cc <stuff\+0x1cc> wach\.ob \$f2
+0+01d0 <stuff\+0x1d0> wacl\.ob \$f2,\$f3
+0+01d4 <stuff\+0x1d4> rorv     a0,a1,a2
+0+01d8 <stuff\+0x1d8> ror      a0,a1,0x11
+0+01dc <stuff\+0x1dc> drorv    a0,a1,a2
+0+01e0 <stuff\+0x1e0> dror32   a0,a1,0x1
+0+01e4 <stuff\+0x1e4> dror     a0,a1,0x2
+       \.\.\.
diff --git a/gas/testsuite/gas/mips/vr5400.s b/gas/testsuite/gas/mips/vr5400.s
new file mode 100644 (file)
index 0000000..ae3ad81
--- /dev/null
@@ -0,0 +1,125 @@
+       .text
+
+stuff:
+       .ent stuff
+       /* Integer instructions.  */
+
+       mul     $4,$5,$6
+       mulu    $4,$5,$6
+       mulhi   $4,$5,$6
+       mulhiu  $4,$5,$6
+       muls    $4,$5,$6
+       mulsu   $4,$5,$6
+       mulshi  $4,$5,$6
+       mulshiu $4,$5,$6
+       macc    $4,$5,$6
+       maccu   $4,$5,$6
+       macchi  $4,$5,$6
+       macchiu $4,$5,$6
+       msac    $4,$5,$6
+       msacu   $4,$5,$6
+       msachi  $4,$5,$6
+       msachiu $4,$5,$6
+
+       ror     $4,$5,25
+       rorv    $4,$5,$6
+       dror    $4,$5,25
+       dror    $4,$5,57        /* Should expand to dror32 $4,$5,25.  */
+       dror32  $4,$5,25
+       drorv   $4,$5,$6
+
+       /* Debug instructions.  */
+
+       dbreak
+       dret
+       mfdr    $3,$3
+       mtdr    $3,$3
+
+       /* Coprocessor 0 instructions, minus standard ISA 3 ones.
+          That leaves just the performance monitoring registers.  */
+
+       mfpc    $4,1
+       mfps    $4,1
+       mtpc    $4,1
+       mtps    $4,1
+
+       /* Multimedia instructions.  */
+
+       .macro  nsel2 op
+       /* Test each form of each vector opcode.  */
+       \op     $f0,$f2
+       \op     $f3,$f6[2]
+       \op     $f6,15
+       .if 0   /* Which is right?? */
+       /* Test negative numbers in immediate-value slot.  */
+       \op     $f4,-3
+       .else
+       /* Test that it's recognized as an unsigned field.  */
+       \op     $f3,31
+       .endif
+       .endm
+
+       .macro  nsel3 op
+       /* Test each form of each vector opcode.  */
+       \op     $f0,$f1,$f2
+       \op     $f3,$f4,$f6[2]
+       \op     $f6,$f5,15
+       .if 0   /* Which is right?? */
+       /* Test negative numbers in immediate-value slot.  */
+       \op     $f4,$f6,-3
+       .else
+       /* Test that it's recognized as an unsigned field.  */
+       \op     $f3,$f7,31
+       .endif
+       .endm
+
+       nsel3   add.ob
+       nsel3   and.ob
+       nsel2   c.eq.ob
+       nsel2   c.le.ob
+       nsel2   c.lt.ob
+       nsel3   max.ob
+       nsel3   min.ob
+       nsel3   mul.ob
+       nsel2   mula.ob
+       nsel2   mull.ob
+       nsel2   muls.ob
+       nsel2   mulsl.ob
+       nsel3   nor.ob
+       nsel3   or.ob
+       nsel3   pickf.ob
+       nsel3   pickt.ob
+       nsel3   sub.ob
+       nsel3   xor.ob
+
+       /* ALNI, SHFL: Vector only.  */
+       alni.ob         $f1,$f2,$f3,5
+       shfl.mixh.ob    $f1,$f2,$f3
+       shfl.mixl.ob    $f1,$f2,$f3
+       shfl.pach.ob    $f1,$f2,$f3
+       shfl.pacl.ob    $f1,$f2,$f3
+
+       /* SLL,SRL: Scalar or immediate.  */
+       sll.ob  $f2,$f4,$f5[3]
+       sll.ob  $f3,$f6,14
+       srl.ob  $f2,$f4,$f5[3]
+       srl.ob  $f3,$f6,14
+
+       /* RZU: Immediate, must be 0, 8, or 16.  */
+       rzu.ob  $f2,13
+
+       /* No selector.  */
+       rach.ob $f2
+       racl.ob $f2
+       racm.ob $f2
+       wach.ob $f2
+       wacl.ob $f2,$f3
+
+       ror     $4,$5,$6
+       rol     $4,$5,15
+       dror    $4,$5,$6
+       drol    $4,$5,31
+       drol    $4,$5,62
+
+       .space  8
+       .end stuff
diff --git a/gas/testsuite/gas/mips/vr5500.d b/gas/testsuite/gas/mips/vr5500.d
new file mode 100644 (file)
index 0000000..f821ba7
--- /dev/null
@@ -0,0 +1,51 @@
+#objdump: -dr --prefix-addresses
+#name: MIPS VR5500
+#as: -march=vr5500
+
+.*: +file format .*mips.*
+
+Disassembly of section .text:
+0+0000 <stuff> mul     a0,a1,a2
+0+0004 <stuff\+0x4> mulu       a0,a1,a2
+0+00008 <stuff\+0x8> mulhi     a0,a1,a2
+0+0000c <stuff\+0xc> mulhiu    a0,a1,a2
+0+00010 <stuff\+0x10> muls     a0,a1,a2
+0+00014 <stuff\+0x14> mulsu    a0,a1,a2
+0+00018 <stuff\+0x18> mulshi   a0,a1,a2
+0+0001c <stuff\+0x1c> mulshiu  a0,a1,a2
+0+00020 <stuff\+0x20> macc     a0,a1,a2
+0+00024 <stuff\+0x24> maccu    a0,a1,a2
+0+00028 <stuff\+0x28> macchi   a0,a1,a2
+0+0002c <stuff\+0x2c> macchiu  a0,a1,a2
+0+00030 <stuff\+0x30> msac     a0,a1,a2
+0+00034 <stuff\+0x34> msacu    a0,a1,a2
+0+00038 <stuff\+0x38> msachi   a0,a1,a2
+0+0003c <stuff\+0x3c> msachiu  a0,a1,a2
+0+00040 <stuff\+0x40> ror      a0,a1,0x19
+0+00044 <stuff\+0x44> rorv     a0,a1,a2
+0+00048 <stuff\+0x48> dror     a0,a1,0x19
+0+0004c <stuff\+0x4c> dror32   a0,a1,0x19
+0+00050 <stuff\+0x50> dror32   a0,a1,0x19
+0+00054 <stuff\+0x54> drorv    a0,a1,a2
+0+00058 <stuff\+0x58> prefx    0x4,a0\(a1\)
+0+0005c <stuff\+0x5c> dbreak
+0+00060 <stuff\+0x60> dret
+0+00064 <stuff\+0x64> mfdr     v1,\$3
+0+00068 <stuff\+0x68> mtdr     v1,\$3
+0+0006c <stuff\+0x6c> mfpc     a0,1
+0+00070 <stuff\+0x70> mfps     a0,1
+0+00074 <stuff\+0x74> mtpc     a0,1
+0+00078 <stuff\+0x78> mtps     a0,1
+0+0007c <stuff\+0x7c> wait
+0+00080 <stuff\+0x80> wait
+0+00084 <stuff\+0x84> wait     0x56789
+0+00088 <stuff\+0x88> ssnop
+0+0008c <stuff\+0x8c> clo      v1,a0
+0+00090 <stuff\+0x90> dclo     v1,a0
+0+00094 <stuff\+0x94> clz      v1,a0
+0+00098 <stuff\+0x98> dclz     v1,a0
+0+0009c <stuff\+0x9c> luxc1    \$f1,a0\(v0\)
+0+000a0 <stuff\+0xa0> suxc1    \$f1,a0\(v0\)
+0+000a4 <stuff\+0xa4> tlbp
+0+000a8 <stuff\+0xa8> tlbr
+       \.\.\.
diff --git a/gas/testsuite/gas/mips/vr5500.s b/gas/testsuite/gas/mips/vr5500.s
new file mode 100644 (file)
index 0000000..9d07410
--- /dev/null
@@ -0,0 +1,80 @@
+       .text
+
+stuff:
+       .ent stuff
+       /* Integer instructions.  */
+
+       mul     $4,$5,$6
+       mulu    $4,$5,$6
+       mulhi   $4,$5,$6
+       mulhiu  $4,$5,$6
+       muls    $4,$5,$6
+       mulsu   $4,$5,$6
+       mulshi  $4,$5,$6
+       mulshiu $4,$5,$6
+       macc    $4,$5,$6
+       maccu   $4,$5,$6
+       macchi  $4,$5,$6
+       macchiu $4,$5,$6
+       msac    $4,$5,$6
+       msacu   $4,$5,$6
+       msachi  $4,$5,$6
+       msachiu $4,$5,$6
+
+       ror     $4,$5,25
+       rorv    $4,$5,$6
+       dror    $4,$5,25
+       dror    $4,$5,57        /* Should expand to dror32 $4,$5,25.  */
+       dror32  $4,$5,25
+       drorv   $4,$5,$6
+
+
+       /* Prefetch instructions.  */
+        # We don't test pref because currently the disassembler will
+        # disassemble it as lwc3.  lwc3 is correct for mips1 to mips3,
+        # while pref is correct for mips4.  Unfortunately, the
+        # disassembler does not know which architecture it is
+        # disassembling for.
+        # pref  4,0($4)
+
+        prefx   4,$4($5)
+
+       /* Debug instructions.  */
+
+       dbreak
+       dret
+       mfdr    $3,$3
+       mtdr    $3,$3
+
+       /* Coprocessor 0 instructions, minus standard ISA 3 ones.
+          That leaves just the performance monitoring registers.  */
+
+       mfpc    $4,1
+       mfps    $4,1
+       mtpc    $4,1
+       mtps    $4,1
+
+       /* Miscellaneous instructions.  */
+
+       wait
+       wait    0               # disassembles without code
+       wait    0x56789
+
+       ssnop
+
+       clo     $3,$4
+       dclo    $3,$4
+       clz     $3,$4
+       dclz    $3,$4
+
+       luxc1   $f1,$4($2)
+       suxc1   $f1,$4($2)
+
+       tlbp
+       tlbr
+
+       /* Align to 16-byte boundary.  */
+       nop
+       nop
+       nop
+       .end stuff