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MIPS/opcodes: Accurately record coprocessor opcode CPU/ISA membership
authorMaciej W. Rozycki <macro@orcam.me.uk>
Sat, 29 May 2021 01:26:32 +0000 (03:26 +0200)
committerMaciej W. Rozycki <macro@orcam.me.uk>
Sat, 29 May 2021 01:26:32 +0000 (03:26 +0200)
Adjust opcode table entries for coprocessor instructions that have been
removed from certain ISA levels or CPU implementations as follows:

- remove CP0 memory access instructions from MIPS II up as the LWC0 and
  SWC0 opcodes have been reused for the LL and SC instructions
  respectively[1]; strictly speaking LWC0 and SWC0 have never really
  been defined in the first place[2], but let's keep them for now in
  case an odd implementation did,

- remove CP0 branch instructions from MIPS IV[3] and MIPS32[4] up, as
  they have been removed as from those ISAs,

- remove CP0 control register move instructions from MIPS32 up, as they
  have been removed as from that ISA[5],

- remove the RFE instruction from MIPS III[6] and MIPS32[7] up, as it
  has been removed as from those ISAs in favour to ERET,

- remove CP2 instructions from Vr5400 CPUs as their encodings have been
  reused for the multimedia instruction set extensions[8] and no CP2
  registers exist[9],

- remove CP3 memory access instructions from MIPS III up as coprocessor
  3 has been removed as from that ISA[10][11] and from MIPS32 up as the
  LWC3 opcode has been reused for the PREF instruction and consequently
  all the four memory access instructions removed from the ISA (though
  the COP3 opcode has been retained)[12].

Update the testsuite accordingly.

References:

[1]  Charles Price, "MIPS IV Instruction Set", MIPS Technologies, Inc.,
     Revision 3.2, September, 1995, Table A-38 "CPU Instruction Encoding
     - MIPS II Architecture", p. A-178

[2]  same, Section A.2.5.1 "Coprocessor Load and Store", p. A-12

[3]  "MIPS R10000 Microprocessor User's Manual", Version 2.0, MIPS
     Technologies, Inc., January 29, 1997, Section 14.25 "CP0
     Instructions", Subsection "Branch on Coprocessor 0", p. 285

[4]  "MIPS32 Architecture For Programmers, Volume II: The MIPS32
     Instruction Set", MIPS Technologies, Inc., Document Number:
     MD00086, Revision 1.00, June 9, 2003, Table A-9 "MIPS32 COP0
     Encoding of rs Field", p. 242

[5]  same

[6]  Joe Heinrich, "MIPS R4000 Microprocessor User's Manual", Second
     Edition, MIPS Technologies, Inc., April 1, 1994, Figure A-2 "R4000
     Opcode Bit Encoding", p. A-182

[8]  "Vr5432 64-bit MIPS RISC Microprocessor User's Manual, Volume 1",
     NEC Electronics Inc., Document No. U13751EU5V0UM00, May 2000,
     Section 1.2.3 "CPU Instruction Set Overview", p. 9

[9]  "Vr5432 64-bit MIPS RISC Microprocessor User's Manual, Volume 2",
     NEC Electronics Inc., Document No. U13751EU5V0UM00, May 2000,
     Section 19.2 "Multimedia Instruction Format", p. 681

[10] Charles Price, "MIPS IV Instruction Set", MIPS Technologies, Inc.,
     Revision 3.2, September, 1995, Section A 8.3.4 "Coprocessor 3 -
     COP3 and CP3 load/store", p. A-176

[11] same, Table A-39 "CPU Instruction Encoding - MIPS III
     Architecture", p. A-179

[12] "MIPS32 Architecture For Programmers, Volume II: The MIPS32
     Instruction Set", MIPS Technologies, Inc., Document Number:
     MD00086, Revision 1.00, August 29, 2002, Table A-2 "MIPS32 Encoding
     of the Opcode Field", p. 241

opcodes/
* mips-opc.c (mips_builtin_opcodes): Update exclusion list for
"ldc2", "ldc3", "lwc0", "lwc2", "lwc3", "sdc2", "sdc3", "swc0",
"swc2", "swc3", "cfc0", "ctc0", "bc2f", "bc2fl", "bc2t",
"bc2tl", "cfc2", "ctc2", "dmfc2", "dmtc2", "mfc2", "mtc2",
"bc3f", "bc3fl", "bc3t", "bc3tl", "cfc3", "ctc3", "mfc3",
"mtc3", "bc0f", "bc0fl", "bc0t", "bc0tl", "rfe", "c2", "c3",
"cop2", and "cop3" entries.

gas/
* testsuite/gas/mips/mips32@isa-override-1.d: Update for LDC3
instruction removal.
* testsuite/gas/mips/mips32r2@isa-override-1.d: Likewise.

gas/ChangeLog patch | blob | history
gas/testsuite/gas/mips/mips32@isa-override-1.d patch | blob | history
gas/testsuite/gas/mips/mips32r2@isa-override-1.d patch | blob | history
opcodes/ChangeLog patch | blob | history
opcodes/mips-opc.c patch | blob | history

diff --git a/gas/ChangeLog b/gas/ChangeLog
index e5c2ecf80f3dcf7740f3adbddef8b4e0367149f9..127dfc1480b967e61ffc9ab8077ccd2ef4613204 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2021-05-29  Maciej W. Rozycki  <macro@orcam.me.uk>
+
+       * testsuite/gas/mips/mips32@isa-override-1.d: Update for LDC3
+       instruction removal.
+       * testsuite/gas/mips/mips32r2@isa-override-1.d: Likewise.
+
 2021-05-29  Maciej W. Rozycki  <macro@orcam.me.uk>
 
        * testsuite/gas/mips/cp0b.d: New test.
diff --git a/gas/testsuite/gas/mips/mips32@isa-override-1.d b/gas/testsuite/gas/mips/mips32@isa-override-1.d
index 75a8f0a0630082d567cb13853fe959704b87665a..27a42fd2e512bb64f195820c3b54076a06c5f0c4 100644 (file)
--- a/gas/testsuite/gas/mips/mips32@isa-override-1.d
+++ b/gas/testsuite/gas/mips/mips32@isa-override-1.d
@@ -2,4 +2,49 @@
 #name: MIPS ISA override code generation
 #as: -32
 #source: isa-override-1.s
-#dump: mips2@isa-override-1.d
+
+.*: +file format .*mips.*
+
+Disassembly of section \.text:
+[0-9a-f]+ <[^>]*> 8c820000     lw      v0,0\(a0\)
+[0-9a-f]+ <[^>]*> 8c830004     lw      v1,4\(a0\)
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 00411025     or      v0,v0,at
+[0-9a-f]+ <[^>]*> d4820000     ldc1    \$f2,0\(a0\)
+[0-9a-f]+ <[^>]*> 3c013ff0     lui     at,0x3ff0
+[0-9a-f]+ <[^>]*> 44811800     mtc1    at,\$f3
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 44811000     mtc1    at,\$f2
+[0-9a-f]+ <[^>]*> dc820000     0xdc820000
+[0-9a-f]+ <[^>]*> 340189ab     li      at,0x89ab
+[0-9a-f]+ <[^>]*> 00010c38     0x10c38
+[0-9a-f]+ <[^>]*> 00411025     or      v0,v0,at
+[0-9a-f]+ <[^>]*> 3c029000     lui     v0,0x9000
+[0-9a-f]+ <[^>]*> 00021438     0x21438
+[0-9a-f]+ <[^>]*> 34428000     ori     v0,v0,0x8000
+[0-9a-f]+ <[^>]*> 00021438     0x21438
+[0-9a-f]+ <[^>]*> d4820000     ldc1    \$f2,0\(a0\)
+[0-9a-f]+ <[^>]*> 3c013ff0     lui     at,0x3ff0
+[0-9a-f]+ <[^>]*> 00010c38     0x10c38
+[0-9a-f]+ <[^>]*> 342189ab     ori     at,at,0x89ab
+[0-9a-f]+ <[^>]*> 00010c38     0x10c38
+[0-9a-f]+ <[^>]*> 44a11000     0x44a11000
+[0-9a-f]+ <[^>]*> 8c820000     lw      v0,0\(a0\)
+[0-9a-f]+ <[^>]*> 8c830004     lw      v1,4\(a0\)
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 00411025     or      v0,v0,at
+[0-9a-f]+ <[^>]*> d4820000     ldc1    \$f2,0\(a0\)
+[0-9a-f]+ <[^>]*> 3c013ff0     lui     at,0x3ff0
+[0-9a-f]+ <[^>]*> 44811800     mtc1    at,\$f3
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 44811000     mtc1    at,\$f2
+[0-9a-f]+ <[^>]*> 8c820000     lw      v0,0\(a0\)
+[0-9a-f]+ <[^>]*> 8c830004     lw      v1,4\(a0\)
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 00411025     or      v0,v0,at
+[0-9a-f]+ <[^>]*> d4820000     ldc1    \$f2,0\(a0\)
+[0-9a-f]+ <[^>]*> 3c013ff0     lui     at,0x3ff0
+[0-9a-f]+ <[^>]*> 44811800     mtc1    at,\$f3
+[0-9a-f]+ <[^>]*> 3c0189ab     lui     at,0x89ab
+[0-9a-f]+ <[^>]*> 44811000     mtc1    at,\$f2
+       \.\.\.
diff --git a/gas/testsuite/gas/mips/mips32r2@isa-override-1.d b/gas/testsuite/gas/mips/mips32r2@isa-override-1.d
index 0dc753adc2c7e26ba3d9d717bdc7f19584b7878a..77b6d3a71eb104405cfa7e2a2670f084c32d2c55 100644 (file)
--- a/gas/testsuite/gas/mips/mips32r2@isa-override-1.d
+++ b/gas/testsuite/gas/mips/mips32r2@isa-override-1.d
@@ -15,7 +15,7 @@ Disassembly of section \.text:
 [0-9a-f]+ <[^>]*> 44811000     mtc1    at,\$f2
 [0-9a-f]+ <[^>]*> 3c013ff0     lui     at,0x3ff0
 [0-9a-f]+ <[^>]*> 44e11000     mthc1   at,\$f2
-[0-9a-f]+ <[^>]*> dc820000     ldc3    \$2,0\(a0\)
+[0-9a-f]+ <[^>]*> dc820000     0xdc820000
 [0-9a-f]+ <[^>]*> 340189ab     li      at,0x89ab
 [0-9a-f]+ <[^>]*> 00010c38     0x10c38
 [0-9a-f]+ <[^>]*> 00411025     or      v0,v0,at
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 955c4b3b531d0bc6ba25660d1b345cec83804f52..7f31e4e48d209b11ed5dc2659659fc4653565982 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,13 @@
+2021-05-29  Maciej W. Rozycki  <macro@orcam.me.uk>
+
+       * mips-opc.c (mips_builtin_opcodes): Update exclusion list for
+       "ldc2", "ldc3", "lwc0", "lwc2", "lwc3", "sdc2", "sdc3", "swc0",
+       "swc2", "swc3", "cfc0", "ctc0", "bc2f", "bc2fl", "bc2t",
+       "bc2tl", "cfc2", "ctc2", "dmfc2", "dmtc2", "mfc2", "mtc2",
+       "bc3f", "bc3fl", "bc3t", "bc3tl", "cfc3", "ctc3", "mfc3",
+       "mtc3", "bc0f", "bc0fl", "bc0t", "bc0tl", "rfe", "c2", "c3",
+       "cop2", and "cop3" entries.
+
 2021-05-29  Maciej W. Rozycki  <macro@orcam.me.uk>
 
        * mips-opc.c (mips_builtin_opcodes): Remove "dmfc3" and "dmtc3"
diff --git a/opcodes/mips-opc.c b/opcodes/mips-opc.c
index a80e98164bfc43a22897e6478c32d49141f66008..d39659653575bb121b11912c0c81194c3ab59241 100644 (file)
--- a/opcodes/mips-opc.c
+++ b/opcodes/mips-opc.c
@@ -1276,10 +1276,10 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"l.d",                        "T,o(b)",       0xd4000000, 0xfc000000, WR_1|RD_3|CLD|FP_D,     0,              I2,             0,      SF }, /* ldc1 */
 {"l.d",                        "T,A(b)",       0,    (int) M_L_DAB,    INSN_MACRO,             INSN2_M_FP_D,   I1,             0,      0 },
 {"ldc2",               "E,+:(d)",      0x49c00000, 0xffe00000, RD_3|WR_C2|CLD,         0,              I37,            0,      0 },
-{"ldc2",               "E,o(b)",       0xd8000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I2,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"ldc2",               "E,A(b)",       0,    (int) M_LDC2_AB,  INSN_MACRO,             0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
-{"ldc3",               "E,o(b)",       0xdc000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
-{"ldc3",               "E,A(b)",       0,    (int) M_LDC3_AB,  INSN_MACRO,             0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
+{"ldc2",               "E,o(b)",       0xd8000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I2,             0,      N54|IOCT|IOCTP|IOCT2|EE|I37 },
+{"ldc2",               "E,A(b)",       0,    (int) M_LDC2_AB,  INSN_MACRO,             0,              I2,             0,      N54|IOCT|IOCTP|IOCT2|EE },
+{"ldc3",               "E,o(b)",       0xdc000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I2,             0,      I3_32|EE },
+{"ldc3",               "E,A(b)",       0,    (int) M_LDC3_AB,  INSN_MACRO,             0,              I2,             0,      I3_32|EE },
 {"ldl",                        "t,o(b)",       0x68000000, 0xfc000000, WR_1|RD_3|LM,           0,              I3,             0,      I69 },
 {"ldl",                        "t,A(b)",       0,    (int) M_LDL_AB,   INSN_MACRO,             0,              I3,             0,      I69 },
 {"ldr",                        "t,o(b)",       0x6c000000, 0xfc000000, WR_1|RD_3|LM,           0,              I3,             0,      I69 },
@@ -1314,8 +1314,8 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"lw",                 "t,o(b)",       0x8c000000, 0xfc000000, WR_1|RD_3|LM,           0,              I1,             0,      0 },
 {"lw",                 "s,-a(+R)",     0xec080000, 0xfc180000, WR_1|LM,                RD_pc,          I37,            0,      0 },
 {"lw",                 "t,A(b)",       0,    (int) M_LW_AB,    INSN_MACRO,             0,              I1,             0,      0 },
-{"lwc0",               "E,o(b)",       0xc0000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
-{"lwc0",               "E,A(b)",       0,    (int) M_LWC0_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
+{"lwc0",               "E,o(b)",       0xc0000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      I2 },
+{"lwc0",               "E,A(b)",       0,    (int) M_LWC0_AB,  INSN_MACRO,             0,              I1,             0,      I2 },
 {"lwc1",               "T,o(b)",       0xc4000000, 0xfc000000, WR_1|RD_3|CLD|FP_S,     0,              I1,             0,      0 },
 {"lwc1",               "E,o(b)",       0xc4000000, 0xfc000000, WR_1|RD_3|CLD|FP_S,     0,              I1,             0,      0 },
 {"lwc1",               "T,A(b)",       0,    (int) M_LWC1_AB,  INSN_MACRO,             INSN2_M_FP_S,   I1,             0,      0 },
@@ -1323,10 +1323,10 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"l.s",                        "T,o(b)",       0xc4000000, 0xfc000000, WR_1|RD_3|CLD|FP_S,     0,              I1,             0,      0 }, /* lwc1 */
 {"l.s",                        "T,A(b)",       0,    (int) M_LWC1_AB,  INSN_MACRO,             INSN2_M_FP_S,   I1,             0,      0 },
 {"lwc2",               "E,+:(d)",      0x49400000, 0xffe00000, RD_3|WR_C2|CLD,         0,              I37,            0,      0 },
-{"lwc2",               "E,o(b)",       0xc8000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"lwc2",               "E,A(b)",       0,    (int) M_LWC2_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
-{"lwc3",               "E,o(b)",       0xcc000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"lwc3",               "E,A(b)",       0,    (int) M_LWC3_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
+{"lwc2",               "E,o(b)",       0xc8000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE|I37 },
+{"lwc2",               "E,A(b)",       0,    (int) M_LWC2_AB,  INSN_MACRO,             0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
+{"lwc3",               "E,o(b)",       0xcc000000, 0xfc000000, RD_3|WR_CC|CLD,         0,              I1,             0,      I3_32|EE },
+{"lwc3",               "E,A(b)",       0,    (int) M_LWC3_AB,  INSN_MACRO,             0,              I1,             0,      I3_32|EE },
 {"lwl",                        "t,o(b)",       0x88000000, 0xfc000000, WR_1|RD_3|LM,           0,              I1,             0,      I37 },
 {"lwl",                        "t,A(b)",       0,    (int) M_LWL_AB,   INSN_MACRO,             0,              I1,             0,      I37 },
 {"lcache",             "t,o(b)",       0x88000000, 0xfc000000, WR_1|RD_3|LM,           0,              I2,             0,      I37 }, /* same */
@@ -1854,10 +1854,10 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"sdc1",               "T,A(b)",       0,    (int) M_SDC1_AB,  INSN_MACRO,             INSN2_M_FP_D,   I2,             0,      SF },
 {"sdc1",               "E,A(b)",       0,    (int) M_SDC1_AB,  INSN_MACRO,             INSN2_M_FP_D,   I2,             0,      SF },
 {"sdc2",               "E,+:(d)",      0x49e00000, 0xffe00000, RD_3|RD_C2|SM,          0,              I37,            0,      0 },
-{"sdc2",               "E,o(b)",       0xf8000000, 0xfc000000, RD_3|RD_C2|SM,          0,              I2,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"sdc2",               "E,A(b)",       0,    (int) M_SDC2_AB,  INSN_MACRO,             0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
-{"sdc3",               "E,o(b)",       0xfc000000, 0xfc000000, RD_3|RD_C3|SM,          0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
-{"sdc3",               "E,A(b)",       0,    (int) M_SDC3_AB,  INSN_MACRO,             0,              I2,             0,      IOCT|IOCTP|IOCT2|EE },
+{"sdc2",               "E,o(b)",       0xf8000000, 0xfc000000, RD_3|RD_C2|SM,          0,              I2,             0,      N54|IOCT|IOCTP|IOCT2|EE|I37 },
+{"sdc2",               "E,A(b)",       0,    (int) M_SDC2_AB,  INSN_MACRO,             0,              I2,             0,      N54|IOCT|IOCTP|IOCT2|EE },
+{"sdc3",               "E,o(b)",       0xfc000000, 0xfc000000, RD_3|RD_C3|SM,          0,              I2,             0,      I3_32|EE },
+{"sdc3",               "E,A(b)",       0,    (int) M_SDC3_AB,  INSN_MACRO,             0,              I2,             0,      I3_32|EE },
 {"s.d",                        "T,o(b)",       0xf4000000, 0xfc000000, RD_1|RD_3|SM|FP_D,      0,              I2,             0,      SF },
 {"s.d",                        "T,A(b)",       0,    (int) M_S_DAB,    INSN_MACRO,             INSN2_M_FP_D,   I1,             0,      0 },
 {"sdl",                        "t,o(b)",       0xb0000000, 0xfc000000, RD_1|RD_3|SM,           0,              I3,             0,      I69 },
@@ -1980,8 +1980,8 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"swapw",              "t,b",          0x70000014, 0xfc00ffff, MOD_1|RD_2|LM|SM,       0,              XLR,            0,      0 },
 {"swapwu",             "t,b",          0x70000015, 0xfc00ffff, MOD_1|RD_2|LM|SM,       0,              XLR,            0,      0 },
 {"swapd",              "t,b",          0x70000016, 0xfc00ffff, MOD_1|RD_2|LM|SM,       0,              XLR,            0,      0 },
-{"swc0",               "E,o(b)",       0xe0000000, 0xfc000000, RD_3|RD_C0|SM,          0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
-{"swc0",               "E,A(b)",       0,    (int) M_SWC0_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
+{"swc0",               "E,o(b)",       0xe0000000, 0xfc000000, RD_3|RD_C0|SM,          0,              I1,             0,      I2 },
+{"swc0",               "E,A(b)",       0,    (int) M_SWC0_AB,  INSN_MACRO,             0,              I1,             0,      I2 },
 {"swc1",               "T,o(b)",       0xe4000000, 0xfc000000, RD_1|RD_3|SM|FP_S,      0,              I1,             0,      0 },
 {"swc1",               "E,o(b)",       0xe4000000, 0xfc000000, RD_1|RD_3|SM|FP_S,      0,              I1,             0,      0 },
 {"swc1",               "T,A(b)",       0,    (int) M_SWC1_AB,  INSN_MACRO,             INSN2_M_FP_S,   I1,             0,      0 },
@@ -1989,10 +1989,10 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"s.s",                        "T,o(b)",       0xe4000000, 0xfc000000, RD_1|RD_3|SM|FP_S,      0,              I1,             0,      0 }, /* swc1 */
 {"s.s",                        "T,A(b)",       0,    (int) M_SWC1_AB,  INSN_MACRO,             INSN2_M_FP_S,   I1,             0,      0 },
 {"swc2",               "E,+:(d)",      0x49600000, 0xffe00000, RD_3|RD_C2|SM,          0,              I37,            0,      0 },
-{"swc2",               "E,o(b)",       0xe8000000, 0xfc000000, RD_3|RD_C2|SM,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"swc2",               "E,A(b)",       0,    (int) M_SWC2_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
-{"swc3",               "E,o(b)",       0xec000000, 0xfc000000, RD_3|RD_C3|SM,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"swc3",               "E,A(b)",       0,    (int) M_SWC3_AB,  INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
+{"swc2",               "E,o(b)",       0xe8000000, 0xfc000000, RD_3|RD_C2|SM,          0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE|I37 },
+{"swc2",               "E,A(b)",       0,    (int) M_SWC2_AB,  INSN_MACRO,             0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
+{"swc3",               "E,o(b)",       0xec000000, 0xfc000000, RD_3|RD_C3|SM,          0,              I1,             0,      I3_32|EE },
+{"swc3",               "E,A(b)",       0,    (int) M_SWC3_AB,  INSN_MACRO,             0,              I1,             0,      I3_32|EE },
 {"swl",                        "t,o(b)",       0xa8000000, 0xfc000000, RD_1|RD_3|SM,           0,              I1,             0,      I37 },
 {"swl",                        "t,A(b)",       0,    (int) M_SWL_AB,   INSN_MACRO,             0,              I1,             0,      I37 },
 {"scache",             "t,o(b)",       0xa8000000, 0xfc000000, RD_1|RD_3,              0,              I2,             0,      I37 }, /* same */
@@ -2106,41 +2106,41 @@ const struct mips_opcode mips_builtin_opcodes[] =
 /* Coprocessor 0 move instructions cfc0 and ctc0 conflict with the
    mfhc0 and mthc0 XPA instructions, so they have been placed here
    to allow the XPA instructions to take precedence.  */
-{"cfc0",               "t,g",          0x40400000, 0xffe007ff, WR_1|RD_C0|LC,          0,              I1,             0,      IOCT|IOCTP|IOCT2 },
-{"ctc0",               "t,g",          0x40c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      IOCT|IOCTP|IOCT2 },
+{"cfc0",               "t,g",          0x40400000, 0xffe007ff, WR_1|RD_C0|LC,          0,              I1,             0,      I32 },
+{"ctc0",               "t,g",          0x40c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      I32 },
 
 /* Coprocessor 2 move/branch operations overlap with VR5400 .ob format
    instructions so they are here for the latters to take precedence.  */
 {"bc2eqz",             "E,p",          0x49200000, 0xffe00000, RD_C2|CBD,              0,              I37,            0,      0 },
-{"bc2f",               "p",            0x49000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
+{"bc2f",               "p",            0x49000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|I37 },
 {"bc2f",               "N,p",          0x49000000, 0xffe30000, RD_CC|CBD,              0,              I32,            0,      IOCT|IOCTP|IOCT2|I37 },
-{"bc2fl",              "p",            0x49020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|I37 },
+{"bc2fl",              "p",            0x49020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      N54|IOCT|IOCTP|IOCT2|I37 },
 {"bc2fl",              "N,p",          0x49020000, 0xffe30000, RD_CC|CBL,              0,              I32,            0,      IOCT|IOCTP|IOCT2|I37 },
 {"bc2nez",             "E,p",          0x49a00000, 0xffe00000, RD_C2|CBD,              0,              I37,            0,      0 },
-{"bc2t",               "p",            0x49010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
+{"bc2t",               "p",            0x49010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|I37 },
 {"bc2t",               "N,p",          0x49010000, 0xffe30000, RD_CC|CBD,              0,              I32,            0,      IOCT|IOCTP|IOCT2|I37 },
-{"bc2tl",              "p",            0x49030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|I37 },
+{"bc2tl",              "p",            0x49030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      N54|IOCT|IOCTP|IOCT2|I37 },
 {"bc2tl",              "N,p",          0x49030000, 0xffe30000, RD_CC|CBL,              0,              I32,            0,      IOCT|IOCTP|IOCT2|I37 },
-{"cfc2",               "t,g",          0x48400000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
+{"cfc2",               "t,g",          0x48400000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"cfc2",               "t,+9",         0x48400000, 0xffe007ff, WR_1|RD_C2|LC,          0,              EE,             0,      0 },
 {"cfc2.i",             "t,+9",         0x48400001, 0xffe007ff, WR_1|RD_C2|LC,          0,              EE,             0,      0 },
 {"cfc2.ni",            "t,+9",         0x48400000, 0xffe007ff, WR_1|RD_C2|LC,          0,              EE,             0,      0 },
-{"ctc2",               "t,g",          0x48c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
+{"ctc2",               "t,g",          0x48c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"ctc2",               "t,+9",         0x48c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              EE,             0,      0 },
 {"ctc2.i",             "t,+9",         0x48c00001, 0xffe007ff, RD_1|WR_CC|CM,          0,              EE,             0,      0 },
 {"ctc2.ni",            "t,+9",         0x48c00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              EE,             0,      0 },
 {"dmfc2",              "t,i",          0x48200000, 0xffe00000, WR_1|RD_C2|LC,          0,              IOCT,           0,      0 },
-{"dmfc2",              "t,G",          0x48200000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I3,             0,      IOCT|IOCTP|IOCT2|EE },
+{"dmfc2",              "t,G",          0x48200000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I3,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"dmfc2",              "t,G,H",        0x48200000, 0xffe007f8, WR_1|RD_C2|LC,          0,              I64,            0,      IOCT|IOCTP|IOCT2 },
 {"dmtc2",              "t,i",          0x48a00000, 0xffe00000, RD_1|WR_C2|WR_CC|CM,    0,              IOCT,           0,      0 },
-{"dmtc2",              "t,G",          0x48a00000, 0xffe007ff, RD_1|WR_C2|WR_CC|CM,    0,              I3,             0,      IOCT|IOCTP|IOCT2|EE },
+{"dmtc2",              "t,G",          0x48a00000, 0xffe007ff, RD_1|WR_C2|WR_CC|CM,    0,              I3,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"dmtc2",              "t,G,H",        0x48a00000, 0xffe007f8, RD_1|WR_C2|WR_CC|CM,    0,              I64,            0,      IOCT|IOCTP|IOCT2 },
-{"mfc2",               "t,G",          0x48000000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
+{"mfc2",               "t,G",          0x48000000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"mfc2",               "t,G,H",        0x48000000, 0xffe007f8, WR_1|RD_C2|LC,          0,              I32,            0,      IOCT|IOCTP|IOCT2 },
 {"mfhc2",              "t,G",          0x48600000, 0xffe007ff, WR_1|RD_C2|LC,          0,              I33,            0,      IOCT|IOCTP|IOCT2 },
 {"mfhc2",              "t,G,H",        0x48600000, 0xffe007f8, WR_1|RD_C2|LC,          0,              I33,            0,      IOCT|IOCTP|IOCT2 },
 {"mfhc2",              "t,i",          0x48600000, 0xffe00000, WR_1|RD_C2|LC,          0,              I33,            0,      IOCT|IOCTP|IOCT2 },
-{"mtc2",               "t,G",          0x48800000, 0xffe007ff, RD_1|WR_C2|WR_CC|CM,    0,              I1,             0,      IOCT|IOCTP|IOCT2|EE },
+{"mtc2",               "t,G",          0x48800000, 0xffe007ff, RD_1|WR_C2|WR_CC|CM,    0,              I1,             0,      N54|IOCT|IOCTP|IOCT2|EE },
 {"mtc2",               "t,G,H",        0x48800000, 0xffe007f8, RD_1|WR_C2|WR_CC|CM,    0,              I32,            0,      IOCT|IOCTP|IOCT2 },
 {"mthc2",              "t,G",          0x48e00000, 0xffe007ff, RD_1|WR_C2|WR_CC|CM,    0,              I33,            0,      IOCT|IOCTP|IOCT2 },
 {"mthc2",              "t,G,H",        0x48e00000, 0xffe007f8, RD_1|WR_C2|WR_CC|CM,    0,              I33,            0,      IOCT|IOCTP|IOCT2 },
@@ -2153,16 +2153,16 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"qmtc2.ni",           "t,+6",         0x48a00000, 0xffe007ff, RD_1|WR_C2,             0,              EE,             0,      0 },
 /* Coprocessor 3 move/branch operations overlap with MIPS IV COP1X
    instructions, so they are here for the latters to take precedence.  */
-{"bc3f",               "p",            0x4d000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"bc3fl",              "p",            0x4d020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"bc3t",               "p",            0x4d010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"bc3tl",              "p",            0x4d030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"cfc3",               "t,g",          0x4c400000, 0xffe007ff, WR_1|RD_C3|LC,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"ctc3",               "t,g",          0x4cc00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"mfc3",               "t,G",          0x4c000000, 0xffe007ff, WR_1|RD_C3|LC,          0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"mfc3",               "t,G,H",        0x4c000000, 0xffe007f8, WR_1|RD_C3|LC,          0,              I32,            0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"mtc3",               "t,G",          0x4c800000, 0xffe007ff, RD_1|WR_C3|WR_CC|CM,    0,              I1,             0,      IOCT|IOCTP|IOCT2|EE|I37 },
-{"mtc3",               "t,G,H",        0x4c800000, 0xffe007f8, RD_1|WR_C3|WR_CC|CM,    0,              I32,            0,      IOCT|IOCTP|IOCT2|EE|I37 },
+{"bc3f",               "p",            0x4d000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      I3_33|EE },
+{"bc3fl",              "p",            0x4d020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      I3_33|EE },
+{"bc3t",               "p",            0x4d010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      I3_33|EE },
+{"bc3tl",              "p",            0x4d030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      I3_33|EE },
+{"cfc3",               "t,g",          0x4c400000, 0xffe007ff, WR_1|RD_C3|LC,          0,              I1,             0,      I3_33|EE },
+{"ctc3",               "t,g",          0x4cc00000, 0xffe007ff, RD_1|WR_CC|CM,          0,              I1,             0,      I3_33|EE },
+{"mfc3",               "t,G",          0x4c000000, 0xffe007ff, WR_1|RD_C3|LC,          0,              I1,             0,      I3_33|EE },
+{"mfc3",               "t,G,H",        0x4c000000, 0xffe007f8, WR_1|RD_C3|LC,          0,              I32,            0,      I3_33|EE },
+{"mtc3",               "t,G",          0x4c800000, 0xffe007ff, RD_1|WR_C3|WR_CC|CM,    0,              I1,             0,      I3_33|EE },
+{"mtc3",               "t,G,H",        0x4c800000, 0xffe007f8, RD_1|WR_C3|WR_CC|CM,    0,              I32,            0,      I3_33|EE },
 
   /* Conflicts with the 4650's "mul" instruction.  Nobody's using the
      4010 any more, so move this insn out of the way.  If the object
@@ -2450,10 +2450,10 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"dpsqx_s.w.ph",       "7,s,t",        0x7c000670, 0xfc00e7ff, RD_2|RD_3|MOD_a,        0,              0,              D33,    0 },
 {"dpsqx_sa.w.ph",      "7,s,t",        0x7c0006f0, 0xfc00e7ff, RD_2|RD_3|MOD_a,        0,              0,              D33,    0 },
 /* Move bc0* after mftr and mttr to avoid opcode collision.  */
-{"bc0f",               "p",            0x41000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
-{"bc0fl",              "p",            0x41020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|I37 },
-{"bc0t",               "p",            0x41010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      IOCT|IOCTP|IOCT2|I37 },
-{"bc0tl",              "p",            0x41030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      IOCT|IOCTP|IOCT2|I37 },
+{"bc0f",               "p",            0x41000000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      I4_32 },
+{"bc0fl",              "p",            0x41020000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      I4_32 },
+{"bc0t",               "p",            0x41010000, 0xffff0000, RD_CC|CBD,              0,              I1,             0,      I4_32 },
+{"bc0tl",              "p",            0x41030000, 0xffff0000, RD_CC|CBL,              0,              I2|T3,          0,      I4_32 },
 /* ST Microelectronics Loongson-2E and -2F.  */
 {"mult.g",             "d,s,t",        0x7c000018, 0xfc0007ff, WR_1|RD_2|RD_3,         0,              IL2E,           0,      0 },
 {"mult.g",             "d,s,t",        0x70000010, 0xfc0007ff, WR_1|RD_2|RD_3,         0,              IL2F,           0,      0 },
@@ -3396,7 +3396,7 @@ const struct mips_opcode mips_builtin_opcodes[] =
 {"ginvt",              "s,+\\",        0x7c0000bd, 0xfc1ffcff, RD_1,                   0,              0,              GINV,   0 },
 
 /* RFE conflicts with the new Virt spec instruction tlbgp. */
-{"rfe",                        "",             0x42000010, 0xffffffff, 0,                      0,              I1|T3,          0,      0 },
+{"rfe",                        "",             0x42000010, 0xffffffff, 0,                      0,              I1|T3,          0,      I3_32 },
 
 /* No hazard protection on coprocessor instructions--they shouldn't
    change the state of the processor and if they do it's up to the
@@ -3404,12 +3404,12 @@ const struct mips_opcode mips_builtin_opcodes[] =
    disassembler recognizes more specific versions first.  */
 {"c0",                 "C",            0x42000000, 0xfe000000, CP,                     0,              I1,             0,      IOCT|IOCTP|IOCT2 },
 {"c1",                 "C",            0x46000000, 0xfe000000, FP_S,                   0,              I1,             0,      0 },
-{"c2",                 "C",            0x4a000000, 0xfe000000, CP,                     0,              I1,             0,      IOCT|IOCTP|IOCT2 },
-{"c3",                 "C",            0x4e000000, 0xfe000000, CP,                     0,              I1,             0,      IOCT|IOCTP|IOCT2 },
+{"c2",                 "C",            0x4a000000, 0xfe000000, CP,                     0,              I1,             0,      N54|IOCT|IOCTP|IOCT2 },
+{"c3",                 "C",            0x4e000000, 0xfe000000, CP,                     0,              I1,             0,      I3_33 },
 {"cop0",               "C",            0,    (int) M_COP0,     INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2 },
 {"cop1",               "C",            0,    (int) M_COP1,     INSN_MACRO,             INSN2_M_FP_S,   I1,             0,      0 },
-{"cop2",               "C",            0,    (int) M_COP2,     INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2 },
-{"cop3",               "C",            0,    (int) M_COP3,     INSN_MACRO,             0,              I1,             0,      IOCT|IOCTP|IOCT2 },
+{"cop2",               "C",            0,    (int) M_COP2,     INSN_MACRO,             0,              I1,             0,      N54|IOCT|IOCTP|IOCT2 },
+{"cop3",               "C",            0,    (int) M_COP3,     INSN_MACRO,             0,              I1,             0,      I3_33 },
 };
 
 #define MIPS_NUM_OPCODES \