ISA Reference Tables

These are from 3.0B p1145 Appendix C, and are based on Anton Blanchard's microwatt decode1.vhdl

Major opcodes

decodes using f_in.insn(31 downto 26)

opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
12 ALU OP_ADD RA CONST_SI NONE RT NONE NONE 0 0 ZERO 1 NONE 0 0 0 0 0 0 NONE 0 0 addic D
13 ALU OP_ADD RA CONST_SI NONE RT NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 0 ONE 0 0 addic. D
14 ALU OP_ADD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 addi D
15 ALU OP_ADD RA_OR_ZERO CONST_SI_HI NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 addis D
28 LOGICAL OP_AND RS CONST_UI NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 ONE 0 0 andi. D
29 LOGICAL OP_AND RS CONST_UI_HI NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 ONE 0 0 andis. D
18 BRANCH OP_B NONE CONST_LI NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 1 0 b I
16 BRANCH OP_BC SPR CONST_BD NONE SPR BI NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 1 0 bc B
11 ALU OP_CMP RA CONST_SI NONE NONE NONE BF 1 0 ONE 0 NONE 0 0 0 0 0 1 NONE 0 0 cmpi D
10 ALU OP_CMP RA CONST_UI NONE NONE NONE BF 1 0 ONE 0 NONE 0 0 0 0 0 0 NONE 0 0 cmpli D
34 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 0 0 0 0 NONE 0 1 lbz D
35 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 1 0 0 0 NONE 0 1 lbzu D
50 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE FRT NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 lfd D
51 LDST OP_LOAD RA CONST_SI NONE FRT NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 lfdu D
48 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 1 0 NONE 0 1 lfs D
49 LDST OP_LOAD RA CONST_SI NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 1 0 NONE 0 1 lfsu D
42 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is2B 0 1 0 0 0 0 NONE 0 1 lha D
43 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is2B 0 1 1 0 0 0 NONE 0 1 lhau D
40 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 0 0 0 0 NONE 0 1 lhz D
41 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 1 0 0 0 NONE 0 1 lhzu D
32 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 1 lwz D
33 LDST OP_LOAD RA_OR_ZERO CONST_SI NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 0 0 NONE 0 1 lwzu D
56 LDST OP_LOAD RA_OR_ZERO CONST_DQ NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 lq DQ
7 MUL OP_MUL_L64 RA CONST_SI NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 NONE 0 0 mulli D
24 LOGICAL OP_OR RS CONST_UI NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 ori D
25 LOGICAL OP_OR RS CONST_UI_HI NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 oris D
20 SHIFT_ROT OP_RLC RA CONST_SH32 RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 rlwimi M
21 SHIFT_ROT OP_RLC NONE CONST_SH32 RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 rlwinm M
23 SHIFT_ROT OP_RLC NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 rlwnm M
38 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is1B 0 0 0 0 0 0 NONE 0 1 stb D
39 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is1B 0 0 1 0 0 0 NONE 0 1 stbu D
54 LDST OP_STORE RA_OR_ZERO CONST_SI FRS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 stfd D
55 LDST OP_STORE RA CONST_SI FRS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 stfdu D
52 LDST OP_STORE RA_OR_ZERO CONST_SI FRS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 1 0 NONE 0 1 stfs D
53 LDST OP_STORE RA CONST_SI FRS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 1 0 NONE 0 1 stfsu D
44 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is2B 0 0 0 0 0 0 NONE 0 1 sth D
45 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is2B 0 0 1 0 0 0 NONE 0 1 sthu D
36 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 1 stw D
37 LDST OP_STORE RA_OR_ZERO CONST_SI RS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 0 0 NONE 0 1 stwu D
8 ALU OP_ADD RA CONST_SI NONE RT NONE NONE 1 0 ONE 1 NONE 0 0 0 0 0 0 NONE 0 0 subfic D
2 TRAP OP_TRAP RA CONST_SI NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 tdi D
3 TRAP OP_TRAP RA CONST_SI NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 1 0 NONE 0 1 twi D
26 LOGICAL OP_XOR RS CONST_UI NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 xori D
27 LOGICAL OP_XOR RS CONST_UI_HI NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 xoris D

Direct data download

Minor opcode 19

decodes using f_in.insn(5 downto 1)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
0b00010 ALU OP_ILLEGAL NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 1 add pcis not implemented yet DX

Direct data download

decodes using f_in.insn(10 downto 1)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
0000000000 CR OP_MCRF NONE NONE NONE NONE BFA BF 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 mcrf XL
0100000001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crand XL
0010000001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crandc XL
0100100001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 creqv XL
0011100001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crnand XL
0000100001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crnor XL
0111000001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 cror XL
0110100001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crorc XL
0011000001 CR OP_CROP NONE NONE NONE NONE BA_BB BT 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 crxor XL
1000010000 BRANCH OP_BCREG SPR SPR NONE SPR BI NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 1 0 bcctr XL
0000010000 BRANCH OP_BCREG SPR SPR NONE SPR BI NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 1 0 bclr XL
1000110000 BRANCH OP_BCREG SPR SPR NONE SPR BI NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 1 0 bctar XL
0010010110 ALU OP_ISYNC NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isync XL
0001010010 TRAP OP_RFID SPR SPR NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 rfscv XL
0000010010 TRAP OP_RFID SPR SPR NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 rfid XL
0100010010 TRAP OP_RFID SPR SPR NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 hrfid XL
-----00010 ALU OP_ADD CIA CONST_DXHI4 NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 addpcis DX

Direct data download

Minor opcode 30

decodes using f_in.insn(4 downto 1)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
010- SHIFT_ROT OP_RLC NONE CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldic MD
000- SHIFT_ROT OP_RLCL NONE CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldicl MD
001- SHIFT_ROT OP_RLCR NONE CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldicr MD
011- SHIFT_ROT OP_RLC RA CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldimi MD
1000 SHIFT_ROT OP_RLCL NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldcl MDS
1001 SHIFT_ROT OP_RLCR NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 rldcr MDS

Direct data download

Minor opcode 31

decodes using f_in.insn(10 downto 1)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS unofficial comment2
0b0100001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 add XO
0b1100001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 addo XO
0b0000001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 0 RC 0 0 addc XO
0b1000001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 0 RC 0 0 addco XO
0b0010001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 adde XO
0b1010001010 ALU OP_ADD RA RB NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 addeo XO
0b0010101010 ALU OP_ADD RA RB NONE RT NONE NONE 0 0 OV 1 NONE 0 0 0 0 0 0 NONE 0 0 addex Z23
0b0011101010 ALU OP_ADD RA CONST_M1 NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 addme XO
0b1011101010 ALU OP_ADD RA CONST_M1 NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 addmeo XO
0b0011001010 ALU OP_ADD RA NONE NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 addze XO
0b1011001010 ALU OP_ADD RA NONE NONE RT NONE CR0 0 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 addzeo XO
0b0001001010 ALU OP_ADDG6S RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 addg6s XO
0b0000011100 LOGICAL OP_AND RS RB NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 and X
0b0000111100 LOGICAL OP_AND RS RB NONE RA NONE CR0 1 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 andc X
0b0100111010 ALU OP_CBCDTD RS NONE NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 cbcdtd X
0b0100011010 ALU OP_CDTBCD RS NONE NONE RA NONE NONE 1 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 cdtbcd X
0b0011111100 LOGICAL OP_BPERM RS RB NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 bpermd X
0b0000000000 ALU OP_CMP RA RB NONE NONE NONE BF 1 0 ONE 0 NONE 0 0 0 0 0 1 NONE 0 0 cmp X
0b0111111100 LOGICAL OP_CMPB RS RB NONE RA NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 cmpb X
0b0011100000 ALU OP_CMPEQB RA RB NONE NONE NONE BF 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 cmpeqb X
0b0000100000 ALU OP_CMP RA RB NONE NONE NONE BF 1 0 ONE 0 NONE 0 0 0 0 0 0 NONE 0 0 cmpl X
0b0011000000 RA RB NONE NONE NONE BF cmprb X
0b0000111010 LOGICAL OP_CNTZ RS NONE NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 cntlzd X
0b0000011010 LOGICAL OP_CNTZ RS NONE NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 cntlzw X
0b1000111010 LOGICAL OP_CNTZ RS NONE NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 cnttzd X
0b1000011010 LOGICAL OP_CNTZ RS NONE NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 cnttzw X
0b1011110011 RT darn X
0b0001010110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 dcbf X
0b0000110110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 dcbst X
0b0100010110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 dcbt X
0b0011110110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 dcbtst X
0b1111110110 LDST OP_DCBZ RA_OR_ZERO RB NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 dcbz X
0b0110001001 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 divdeu XO
0b1110001001 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 divdeuo XO
0b0110001011 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 divweu XO
0b1110001011 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 divweuo XO
0b0110101001 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 divde XO
0b1110101001 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 divdeo XO
0b0110101011 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 divwe XO
0b1110101011 DIV OP_DIVE RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 divweo XO
0b0111001001 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 divdu XO
0b1111001001 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 divduo XO
0b0111001011 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 divwu XO
0b1111001011 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC 0 0 divwuo XO
0b0111101001 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 divd XO
0b1111101001 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 divdo XO
0b0111101011 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 divw XO
0b1111101011 DIV OP_DIV RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 divwo XO
0b1101010110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 eieio X
0b0100011100 LOGICAL OP_XOR RS RB NONE RA NONE CR0 0 1 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 eqv X
0b1110111010 ALU OP_EXTS RS NONE NONE RA NONE CR0 0 0 ZERO 0 is1B 0 0 0 0 0 0 RC_ONLY 0 0 extsb X
0b1110011010 ALU OP_EXTS RS NONE NONE RA NONE CR0 0 0 ZERO 0 is2B 0 0 0 0 0 0 RC_ONLY 0 0 extsh X
0b1111011010 ALU OP_EXTS RS NONE NONE RA NONE CR0 0 0 ZERO 0 is4B 0 0 0 0 0 0 RC_ONLY 0 0 extsw X
0b1101111010 SHIFT_ROT OP_EXTSWSLI NONE CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 extswsli XS
0b1101111011 SHIFT_ROT OP_EXTSWSLI NONE CONST_SH RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 extswsli XS
0b1111010110 ALU OP_ICBI NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 icbi X
0b0000010110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 icbt X
0b0000001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0000101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0001001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0001101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0010001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0010101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0011001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0011101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0100001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0100101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0101001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0101101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0110001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0110101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0111001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0111101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1000001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1000101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1001001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1001101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1010001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1010101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1011001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1011101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1100001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1100101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1101001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1101101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1110001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1110101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1111001111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b1111101111 CR OP_ISEL RA_OR_ZERO RB NONE RT BC NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 isel A
0b0000110100 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 0 1 0 0 NONE 0 1 lbarx X
0b1101010101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 cix 0 0 0 NONE 0 0 lbzcix X
0b0001110111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 1 0 0 0 NONE 0 1 lbzux X
0b0001010111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is1B 0 0 0 0 0 0 NONE 0 1 lbzx X
0b0001010100 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 0 1 0 0 NONE 0 1 ldarx X
0b1000010100 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is8B 1 0 0 0 0 0 NONE 0 1 ldbrx X
0b1101110101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 cix 0 0 0 NONE 0 0 ldcix X
0b0000110101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 ldux X
0b0000010101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 ldx X
0b1001010111 LDST OP_LOAD RA_OR_ZERO RB NONE FRT NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 0 lfdx X
0b1001110111 LDST OP_LOAD RA RB NONE FRT NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 0 lfdux X
0b1101010111 LDST OP_LOAD RA_OR_ZERO RB NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 1 0 0 0 0 NONE 0 0 lfiwax X
0b1101110111 LDST OP_LOAD RA_OR_ZERO RB NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 0 lfiwzx X
0b1000010111 LDST OP_LOAD RA_OR_ZERO RB NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 1 0 NONE 0 0 lfsx X
0b1000110111 LDST OP_LOAD RA RB NONE FRT NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 1 0 NONE 0 0 lfsux X
0b0001110100 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 0 1 0 0 NONE 0 1 lharx X
0b0101110111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 1 1 0 0 0 NONE 0 1 lhaux X
0b0101010111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 1 0 0 0 0 NONE 0 1 lhax X
0b1100010110 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 1 0 0 0 0 0 NONE 0 1 lhbrx X
0b1100110101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 cix 0 0 0 NONE 0 0 lhzcix X
0b0100110111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 1 0 0 0 NONE 0 1 lhzux X
0b0100010111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is2B 0 0 0 0 0 0 NONE 0 1 lhzx X
0b0000010100 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 0 1 0 0 NONE 0 1 lwarx X
0b0101110101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 1 1 0 0 0 NONE 0 1 lwaux X
0b0101010101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 1 0 0 0 0 NONE 0 1 lwax X
0b1000010110 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 1 0 0 0 0 0 NONE 0 1 lwbrx X
0b1100010101 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 cix 0 0 0 NONE 0 0 lwzcix X
0b0000110111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 0 0 NONE 0 1 lwzux X
0b0000010111 LDST OP_LOAD RA_OR_ZERO RB NONE RT NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 1 lwzx X
0b1000000000 mcrxr X
0b1001000000 mcrxrx X
0b0000010011 CR OP_MFCR NONE NONE NONE RT WHOLE_REG NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 mfcr/mfocrf XFX
0b0001010011 TRAP OP_MFMSR NONE NONE NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 mfmsr X
0b0101010011 SPR OP_MFSPR SPR NONE NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 mfspr XFX
0b0100001001 DIV OP_MOD RA RB NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 modud X
0b0100001011 DIV OP_MOD RA RB NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 1 0 NONE 0 0 moduw X
0b1100001001 DIV OP_MOD RA RB NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 1 NONE 0 0 modsd X
0b1100001011 DIV OP_MOD RA RB NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 1 1 NONE 0 0 modsw X
0b0010010000 CR OP_MTCRF RS NONE NONE NONE WHOLE_REG WHOLE_REG 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 mtcrf/mtocrf XFX
0b0010110010 TRAP OP_MTMSRD RS NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 mtmsrd X
0b0010010010 TRAP OP_MTMSR RS NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 mtmsr X
0b0111010011 SPR OP_MTSPR RS NONE NONE SPR NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 mtspr XFX
0b0001001001 MUL OP_MUL_H64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC_ONLY 0 0 mulhd XO
0b0000001001 MUL OP_MUL_H64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 mulhdu XO
0b0001001011 MUL OP_MUL_H32 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC_ONLY 0 0 mulhw XO
0b0000001011 MUL OP_MUL_H32 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 mulhwu XO
0b1001001001 MUL OP_MUL_H64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC_ONLY 0 0 mulhd XO
0b1000001001 MUL OP_MUL_H64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 mulhdu XO
0b1001001011 MUL OP_MUL_H32 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC_ONLY 0 0 mulhw XO
0b1000001011 MUL OP_MUL_H32 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 mulhwu XO
0b0011101001 MUL OP_MUL_L64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 mulld XO
0b1011101001 MUL OP_MUL_L64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 1 RC 0 0 mulldo XO
0b0011101011 MUL OP_MUL_L64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 mullw XO
0b1011101011 MUL OP_MUL_L64 RA RB NONE RT NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 1 RC 0 0 mullwo XO
0b0111011100 LOGICAL OP_AND RS RB NONE RA NONE CR0 0 1 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 nand X
0b0001101000 ALU OP_ADD RA NONE NONE RT NONE NONE 1 0 ONE 0 NONE 0 0 0 0 0 0 RC 0 0 neg XO
0b1001101000 ALU OP_ADD RA NONE NONE RT NONE NONE 1 0 ONE 0 NONE 0 0 0 0 0 0 RC 0 0 nego XO
0b0001111100 LOGICAL OP_OR RS RB NONE RA NONE CR0 0 1 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 nor X
0b0110111100 LOGICAL OP_OR RS RB NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 or X
0b0110011100 LOGICAL OP_OR RS RB NONE RA NONE CR0 1 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 orc X
0b0001111010 LOGICAL OP_POPCNT RS NONE NONE RA NONE NONE 0 0 ZERO 0 is1B 0 0 0 0 0 0 NONE 0 0 popcntb X
0b0111111010 LOGICAL OP_POPCNT RS NONE NONE RA NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 0 popcntd X
0b0101111010 LOGICAL OP_POPCNT RS NONE NONE RA NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 0 popcntw X
0b0010111010 LOGICAL OP_PRTY RS NONE NONE RA NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 0 prtyd X
0b0010011010 LOGICAL OP_PRTY RS NONE NONE RA NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 0 prtyw X
0b0010000000 CR OP_SETB NONE NONE NONE RT BFA NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 setb X
0b0111110010 MMU OP_TLBIE NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 slbia X
0b0000011011 SHIFT_ROT OP_SHL NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 sld X
0b0000011000 SHIFT_ROT OP_SHL NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 slw X
0b1100011010 SHIFT_ROT OP_SHR NONE RB RS RA NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 1 RC_ONLY 0 0 srad X
0b1100111010 SHIFT_ROT OP_SHR NONE CONST_SH RS RA NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 1 RC_ONLY 0 0 sradi XS
0b1100111011 SHIFT_ROT OP_SHR NONE CONST_SH RS RA NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 0 1 RC_ONLY 0 0 sradi XS
0b1100011000 SHIFT_ROT OP_SHR NONE RB RS RA NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 1 1 RC_ONLY 0 0 sraw X
0b1100111000 SHIFT_ROT OP_SHR NONE CONST_SH32 RS RA NONE CR0 0 0 ZERO 1 NONE 0 0 0 0 1 1 RC_ONLY 0 0 srawi X
0b1000011011 SHIFT_ROT OP_SHR NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC_ONLY 0 0 srd X
0b1000011000 SHIFT_ROT OP_SHR NONE RB RS RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 1 0 RC_ONLY 0 0 srw X
0b1111010101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is1B 0 0 cix 0 0 0 NONE 0 1 stbcix X
0b1010110110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE CR0 0 0 ZERO 0 is1B 0 0 0 1 0 0 ONE 0 1 stbcx X
0b0011110111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is1B 0 0 1 0 0 0 NONE 0 1 stbux X
0b0011010111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is1B 0 0 0 0 0 0 NONE 0 1 stbx X
0b1010010100 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is8B 1 0 0 0 0 0 NONE 0 1 stdbrx X
0b1111110101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 cix 0 0 0 NONE 0 1 stdcix X
0b0011010110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE CR0 0 0 ZERO 0 is8B 0 0 0 1 0 0 ONE 0 1 stdcx X
0b0010110101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 stdux X
0b0010010101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 stdx X
0b1011010111 LDST OP_STORE RA_OR_ZERO RB FRS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 0 stfdx X
0b1011110111 LDST OP_STORE RA RB FRS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 0 stfdux X
0b1111010111 LDST OP_STORE RA_OR_ZERO RB FRS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 0 stfiwx X
0b1010010111 LDST OP_STORE RA RB FRS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 1 0 NONE 0 0 stfsx X
0b1010110111 LDST OP_STORE RA RB FRS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 1 0 NONE 0 0 stfsux X
0b1110010110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is2B 1 0 0 0 0 0 NONE 0 1 sthbrx X
0b1110110101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is2B 0 0 cix 0 0 0 NONE 0 1 sthcix X
0b1011010110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE CR0 0 0 ZERO 0 is2B 0 0 0 1 0 0 ONE 0 1 sthcx X
0b0110110111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is2B 0 0 1 0 0 0 NONE 0 1 sthux X
0b0110010111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is2B 0 0 0 0 0 0 NONE 0 1 sthx X
0b1010010110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is4B 1 0 0 0 0 0 NONE 0 1 stwbrx X
0b1110010101 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 cix 0 0 0 NONE 0 1 stwcix X
0b0010010110 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE CR0 0 0 ZERO 0 is4B 0 0 0 1 0 0 ONE 0 1 stwcx X
0b0010110111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 1 0 0 0 NONE 0 1 stwux X
0b0010010111 LDST OP_STORE RA_OR_ZERO RB RS NONE NONE NONE 0 0 ZERO 0 is4B 0 0 0 0 0 0 NONE 0 1 stwx X
0b0000101000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 ONE 0 NONE 0 0 0 0 0 0 RC 0 0 subf XO
0b1000101000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 ONE 0 NONE 0 0 0 0 0 0 RC 0 0 subfo XO
0b0000001000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 ONE 1 NONE 0 0 0 0 0 0 RC 0 0 subfc XO
0b1000001000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 ONE 1 NONE 0 0 0 0 0 0 RC 0 0 subfco XO
0b0010001000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfe XO
0b1010001000 ALU OP_ADD RA RB NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfeo XO
0b0011101000 ALU OP_ADD RA CONST_M1 NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfme XO
0b1011101000 ALU OP_ADD RA CONST_M1 NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfmeo XO
0b0011001000 ALU OP_ADD RA NONE NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfze XO
0b1011001000 ALU OP_ADD RA NONE NONE RT NONE CR0 1 0 CA 1 NONE 0 0 0 0 0 0 RC 0 0 subfzeo XO
0b1001010110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 sync X
0b0001000100 TRAP OP_TRAP RA RB NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 td X
0b0000000100 TRAP OP_TRAP RA RB NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 1 0 NONE 0 1 tw X
0b0100110010 MMU OP_TLBIE NONE RB NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 tlbie X
0b0100010010 MMU OP_TLBIE NONE RB NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 tlbiel X
0b1000110110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 tlbsync X
0b0000011110 ALU OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 wait X
0b0100111100 LOGICAL OP_XOR RS RB NONE RA NONE CR0 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 0 xor X

Direct data download

Minor opcode 58

decodes using f_in.insn(1 downto 0)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
0 LDST OP_LOAD RA_OR_ZERO CONST_DS NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 ld DS
1 LDST OP_LOAD RA_OR_ZERO CONST_DS NONE RT NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 ldu DS
2 LDST OP_LOAD RA_OR_ZERO CONST_DS NONE RT NONE NONE 0 0 ZERO 0 is4B 0 1 0 0 0 0 NONE 0 1 lwa DS

Direct data download

Minor opcode 62

decodes using f_in.insn(1 downto 0)

SPDX-License-Header: CC-BY-4

derived from microwatt decode1.vhdl

 with thanks and gratitude (IBM OPF)
opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS
0 LDST OP_STORE RA_OR_ZERO CONST_DS RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 std DS
1 LDST OP_STORE RA_OR_ZERO CONST_DS RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 1 0 0 0 NONE 0 1 stdu DS
2 LDST OP_STORE RA_OR_ZERO CONST_DS RS NONE NONE NONE 0 0 ZERO 0 is8B 0 0 0 0 0 0 NONE 0 1 stq DS

Direct data download

Extra opcodes

These can match against the (full) row[0] spec: nmigen Case supports "-" as "don't care"

opcode unit internal op in1 in2 in3 out CR in CR out inv A inv out cry in cry out ldst len BR sgn ext upd rsrv 32b sgn rc lk sgl pipe comment form CONDITIONS unofficial comment2
000000---------------0100000000- NONE OP_ATTN NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 RC 0 1 attn NONE 0 service processor "attention"
01100000000000000000000000000000 NONE OP_NOP NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 nop D 0
000001---------------0000000011- NONE OP_SIM_CONFIG NONE NONE NONE RT NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 1 sim_cfg NONE 1 should be removed--conflicts with ISA v3.1 prefix and SVP64 prefix
010001------------------------1- TRAP OP_SC NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 sc SC
010001------------------------01 TRAP OP_SC NONE NONE NONE NONE NONE NONE 0 0 ZERO 0 NONE 0 0 0 0 0 0 NONE 0 0 scv SC

Direct data download

SPRs

Special Purpose Registers. These are listed in 3.0B Table 18 p971.

Idx SPR priv_mtspr priv_mfspr len
1 XER no no 64
3 DSCR no no 64
8 LR no no 64
9 CTR no no 64
13 AMR no no 64
17 DSCR_priv yes yes 64
18 DSISR yes yes 32
19 DAR yes yes 64
22 DEC yes yes 64
26 SRR0 yes yes 64
27 SRR1 yes yes 64
28 CFAR yes yes 64
29 AMR_priv yes yes 64
48 PIDR yes yes 32
61 IAMR yes yes 64
128 TFHAR no no 64
129 TFIAR no no 64
130 TEXASR no no 64
131 TEXASRU no no 32
136 CTRL - no 32
144 TIDR yes yes 64
152 CTRL_priv yes - 32
153 FSCR yes yes 64
157 UAMOR yes yes 64
158 GSR yes - 0
159 PSPB yes yes 32
176 DPDES hypv yes 64
180 DAWR0 hypv hypv 64
186 RPR hypv hypv 64
187 CIABR hypv hypv 64
188 DAWRX0 hypv hypv 32
190 HFSCR hypv hypv 64
256 VRSAVE no no 32
259 SPRG3 - no 64
268 TB - no 64
269 TBU - no 32
272 SPRG0_priv yes yes 64
273 SPRG1_priv yes yes 64
274 SPRG2_priv yes yes 64
275 SPRG3_priv yes yes 64
283 CIR - yes 32
284 TBL hypv - 32
285 TBU_hypv hypv - 32
286 TBU40 hypv - 64
287 PVR - yes 32
304 HSPRG0 hypv hypv 64
305 HSPRG1 hypv hypv 64
306 HDSISR hypv hypv 32
307 HDAR hypv hypv 64
308 SPURR hypv yes 64
309 PURR hypv yes 64
310 HDEC hypv hypv 64
313 HRMOR hypv hypv 64
314 HSRR0 hypv hypv 64
315 HSRR1 hypv hypv 64
318 LPCR hypv hypv 64
319 LPIDR hypv hypv 32
336 HMER hypv hypv 64
337 HMEER hypv hypv 64
338 PCR hypv hypv 64
339 HEIR hypv hypv 32
349 AMOR hypv hypv 64
446 TIR - yes 64
464 PTCR hypv hypv 64
704 SVSTATE no no 64
705 SVSHAPE0 no no 32
706 SVSHAPE1 no no 32
707 SVSHAPE2 no no 32
708 SVSHAPE3 no no 32
720 PRTBL yes yes 64
721 SVSRR0 yes yes 64
727 SVCTX0 yes yes 64
728 SVCTX1 yes yes 64
729 SVCTX2 yes yes 64
730 SVCTX3 yes yes 64
731 SVCTX4 yes yes 64
732 SVCTX5 yes yes 64
733 SVCTX6 yes yes 64
734 SVCTX7 yes yes 64
768 SIER - no 64
769 MMCR2 no no 64
770 MMCRA no no 64
771 PMC1 no no 32
772 PMC2 no no 32
773 PMC3 no no 32
774 PMC4 no no 32
775 PMC5 no no 32
776 PMC6 no no 32
779 MMCR0 no no 64
780 SIAR - no 64
781 SDAR - no 64
782 MMCR1 - no 64
784 SIER_priv yes yes 64
785 MMCR2_priv yes yes 64
786 MMCRA_priv yes yes 64
787 PMC1_priv yes yes 32
788 PMC2_priv yes yes 32
789 PMC3_priv yes yes 32
790 PMC4_priv yes yes 32
791 PMC5_priv yes yes 32
792 PMC6_priv yes yes 32
795 MMCR0_priv yes yes 64
796 SIAR_priv yes yes 64
797 SDAR_priv yes yes 64
798 MMCR1_priv yes yes 64
800 BESCRS no no 64
801 BESCRSU no no 32
802 BESCRR no no 64
803 BESCRRU no no 32
804 EBBHR no no 64
805 EBBRR no no 64
806 BESCR no no 64
808 reserved808 no no 0
809 reserved809 no no 0
810 reserved810 no no 0
811 reserved811 no no 0
815 TAR no no 64
816 ASDR hypv hypv 64
823 PSSCR yes yes 64
848 IC hypv yes 64
850 KAIVB no no 64
849 VTB hypv yes 64
855 PSSCR_hypv hypv hypv 64
896 PPR no no 64
898 PPR32 no no 32
1023 PIR - yes 32

Direct data download

Fields

These are in machine-readable format that may be parsed with the following program: power_fields.py

The table can be downloaded in plain text format here: fields.text


# 1.6.1 I-FORM
    |0     |6         |30|31 |
    | PO   |      LI  |AA|LK |

# 1.6.2 B-FORM
    |0     |6   |11     |16     |30|31 |
    | PO   |  BO|   BI  |   BD  |AA|LK |

# 1.6.2.1 BM-FORM
    |0     |6    |10  |15  |22  |23    |31|
    | PO   |  RS | me | sh | me |   XO |Rc|

# 1.6.2.2 BM2-FORM
    |0     |6    |11    |16    |21   |26 |27    31|
    | PO   |  RT |   RA |   RB |bm   |L  |   XO   |

# 1.6.2.1 CRB-FORM
    |0     |6    |9   |11   |14   | 16  |19   |26   | 31|
    | PO   | BF  | msk|BFA  | msk | BFB | //  | XO  | / |
    | PO   | BF  | msk|BFA  | msk | BFB | TLI | XO  |TLI|

# 1.6.3 SC-FORM
    |0     |6    |11    |16    |20     |27  |30 |31  |
    | PO   |  ///|   ///|   // |   LEV |  //|  1|  / |

# 1.6.4 D-FORM
    |0     |6   |9  |10 |11   |16      |31 |
    | PO   |    RT      |   RA|   D        |
    | PO   |    RT      |   RA|   SI       |
    | PO   |   RS       |   RA|   D        |
    | PO   |   RS       |   RA|   UI       |
    | PO   | BF | / | L |   RA|   SI       |
    | PO   | BF | / | L |   RA|   UI       |
    | PO   |    TO      |   RA|   SI       |
    | PO   |   FRT      |   RA|   D        |
    | PO   |   FRS      |   RA|   D        |

# 1.6.5 DS-FORM
    |0     |6      |11    |16    |30  |31 |
    | PO   |   RT  |   RA |   DS |  XO    |
    | PO   |   RS  |   RA |   DS |  XO    |
    | PO   |  RSp  |   RA |   DS |  XO    |
    | PO   |  FRTp |   RA |   DS |  XO    |
    | PO   |  FRSp |   RA |   DS |  XO    |

# 1.6.6 DQ-FORM
    |0     |6     |11    |16    |28|29 |31 |
    | PO   |  RTp |   RA |   DQ |   PT     |
    | PO   |  S   |   RA |   DQ |SX| XO    |
    | PO   |  T   |   RA |   DQ |TX| XO    |

# V3.0B 1.6.6 DX-FORM
    |0    |6   |11   |16   |26   |31
    | PO  |  RT|   d1|   d0|   XO|d2
    | PO  | FRS|   d1|   d0|   XO|d2
    | PO  | FRS|     D     |   XO|D

# 1.6.7 X-FORM
    |0     |6 |7|8|9  |10  |11|12|13  |15|16|17     |20|21    |31  |
    | PO   |       RT      |    RA       |     ///     |   XO |  / |
    | PO   |       RT      |    RA       |    RB       |   XO |  / |
    | PO   |       RT      |    RA       |    RB       |   XO |EH  |
    | PO   |       RT      |    RA       |    NB       |   XO |  / |
    | PO   |       RT      | /|SR        |     ///     |   XO |  / |
    | PO   |       RT      |     ///     |    RB       |   XO |  / |
    | PO   |       RT      |     ///     |    RB       |   XO | 1  |
    | PO   |       RT      |     ///     |     ///     |   XO |  / |
    | PO   |       RS      |    RA       |    RB       |   XO |Rc  |
    | PO   |       RT      |    RA       |    RB       |   XO |Rc  |
    | PO   |       RS      |    RA       |    RB       |   XO | 1  |
    | PO   |       RS      |    RA       |    RB       |   XO |  / |
    | PO   |       RS      |    RA       |    NB       |   XO |  / |
    | PO   |       RS      |    RA       |    SH       |   XO |Rc  |
    | PO   |       RS      |    RA       |     ///     |   XO |Rc  |
    | PO   |       RS      |    RA       |     ///     |   XO |  / |
    | PO   |       RS      | /|SR        |     ///     |   XO |  / |
    | PO   |       RS      |     ///     |    RB       |   XO |  / |
    | PO   |       RS      |     ///     |     ///     |   XO |  / |
    | PO   |       RS      |    ///   |L1|     ///     |   XO |  / |
    | PO   |       TH      |    RA       |    RB       |   XO |  / |
    | PO   |  BF  |/  | L  |    RA       |    RB       |   XO |  / |
    | PO   |  BF  |//      |   FRA       |   FRB       |   XO |  / |
    | PO   |  BF  |//      | BFA | //    |     ///     |   XO |  / |
    | PO   |  BF  |//      |    ///   |W |    U     |/ |   XO |Rc  |
    | PO   |  BF  |//      |     ///     |     ///     |   XO |  / |
    | PO   |       TH      |    RA       |    RB       |   XO |  / |
    | PO   | /| CT         |     ///     |     ///     |   XO |  / |
    | PO   | /| CT         |    RA       |    RB       |   XO |  / |
    | PO   |  /// | L2     |    RA       |    RB       |   XO |  / |
    | PO   |  /// | L2     |     ///     |    RB       |   XO |  / |
    | PO   |  /// | L2     |     ///     |     ///     |   XO |  / |
    | PO   |  /// | L2     | /|     E    |     ///     |   XO |  / |
    | PO   |     TO        |    RA       |    RB       |   XO |  / |
    | PO   |   FRT         |    RA       |    RB       |   XO |  / |
    | PO   |   FRT         |   FRA       |   FRB       |   XO |  / |
    | PO   |  FRTp         |    RA       |    RB       |   XO |  / |
    | PO   |   FRT         |     ///     |   FRB       |   XO |Rc  |
    | PO   |   FRT         |     ///     |   FRBp      |   XO |Rc  |
    | PO   |   FRT         |     ///     |     ///     |   XO |Rc  |
    | PO   |  FRTp         |      ///    |   FRB       |   XO |Rc  |
    | PO   |  FRTp         |      ///    |   FRBp      |   XO |Rc  |
    | PO   |  FRTp         |   FRA       |   FRBp      |   XO |Rc  |
    | PO   |  FRTp         |   FRAp      |   FRBp      |   XO |Rc  |
    | PO   |  BF  |//      |   FRA       |   FRBp      |   XO |  / |
    | PO   |  BF  |//      |   FRAp      |   FRBp      |   XO |  / |
    | PO   |    FRT        |S |          | FRB         |   XO |Rc  |
    | PO   |  FRTp         |S |          | FRBp        |   XO |Rc  |
    | PO   |    FRS        |  RA         |  RB         |   XO |  / |
    | PO   |  FRSp         |  RA         |  RB         |   XO |  / |
    | PO   |     BT        |  ///        |  ///        |   XO |Rc  |
    | PO   |     ///       |  RA         |  RB         |   XO |  / |
    | PO   |     ///       |  ///        |  RB         |   XO |  / |
    | PO   |     ///       |  ///        |  ///        |   XO |  / |
    | PO   |     ///       |  ///        | E|///       |   XO |  / |
    | PO   |  //|IH        |  ///        |  ///        |   XO |  / |
    | PO   | A|//          |  ///        |  ///        |   XO | 1  |
    | PO   | A|//     |R   |  ///        |  ///        |   XO | 1  |
    | PO   |     ///       |  RA         |  RB         |   XO | 1  |
    | PO   |  /// |WC      |  ///        |  ///        |   XO |  / |
    | PO   |  /// |T       |  RA         |  RB         |   XO |  / |
    | PO   |    VRT        |  RA         |  RB         |   XO |  / |
    | PO   |   VRS         |  RA         |  RB         |   XO |  / |
    | PO   |    MO         |  ///        |  ///        |   XO |  / |
    | PO   |       RT      | /// |L3     |     ///     |   XO | /  |
    | PO   |   FRT         |   FRA       |   FRB       |   XO | Rc |
    | PO   |   FRT         |   FRA       |    RB       |   XO | Rc |

# 1.6.8 XL-FORM
    |0     |6    |9  |11  |14   |16    |19|20|21    |31 |
    | PO   |   BT    |     BA   |    BB      |   XO | / |
    | PO   |   BO    |     BI   |  /// |BH   |   XO |LK |
    | PO   |         |    ///             |S |   XO | / |
    | PO   |  BF |// |BFA |//   |     ///    |   XO | / |
    | PO   |              ///                |   XO | / |
    | PO   |             OC                  |   XO | / |

# 1.6.9 XFX-FORM
    |0     |6        |11|12             |20|21    |31 |
    | PO   |  RT     |     spr             |   XO | / |
    | PO   |  RT     |     tbr             |   XO | / |
    | PO   |  RT     |0 |     ///          |   XO | / |
    | PO   |  RT     |1 |  FXM          |/ |   XO | / |
    | PO   |  RT     |     dcr             |   XO | / |
    | PO   |  RT     |    pmrn             |   XO | / |
    | PO   |  RT     |   BHRBE             |   XO | / |
    | PO   |  DUI    |    DUIS             |   XO | / |
    | PO   |  RS     |0 |  FXM          |/ |   XO | / |
    | PO   |  RS     |1 |  FXM          |/ |   XO | / |
    | PO   |  RS     |     spr             |   XO | / |
    | PO   |  RS     |     dcr             |   XO | / |
    | PO   |  RS     |    pmrn             |   XO | / |

# 1.6.10 XFL-FORM
    |0     |6|7             |15|16        |21    |31 |
    | PO   |L|    FLM       |W |FRB       |   XO |Rc |

# 1.6.11 XX1-FORM
    |0     |6        |11       |16        |21    |31 |
    | PO   |  T      |   RA    |   RB     |   XO |TX |
    | PO   |  S      |   RA    |   RB     |   XO |SX |

# 1.6.12 XX2-FORM
    |0     |6    |9  |11   |14  |16        |21 |30|31 |
    | PO   |    T    |    ///   |    B     |XO |BX|TX |
    | PO   |    T    | /// |UIM |    B     |XO |BX|TX |
    | PO   |  BF | //|      /// |    B     |XO |BX| / |

# 1.6.13 XX3-FORM
    |0     |6     |9    |11   |16   |21 |22  |24    |29|30|31 |
    | PO   |     T      |   A |   B |         XO    |AX|BX|TX |
    | PO   |     T      |   A |   B |Rc |       XO  |AX|BX|TX |
    | PO   |  BF  |  // |   A |   B |         XO    |AX|BX|/  |
    | PO   |     T      |   A |   B |XO |SHW |   XO |AX|BX|TX |
    | PO   |     T      |   A |   B |XO |DM  |   XO |AX|BX|TX |

# 1.6.14 XX4-FORM
    |0     |6   |11   |16   |21   |26  |28|29 |30|31 |
    | PO   |  T |   A |   B |   C | XO |CX|AX |BX|TX |

# 1.6.15 XS-FORM
    |0     |6    |11    |16    |21    |30|31 |
    | PO   |  RS |   RA |   sh |   XO |sh|Rc |

# 1.6.15 XB-FORM
    |0     |6    |11    |16    |22    |31 |
    | PO   |  RT |   RA |  XBI |   XO |Rc |

# 1.6.16 XO-FORM
    |0     |6   |11   |16     |21 |22    |31  |
    | PO   |  RT|   RA|   RB  |OE |   XO |Rc  |
    | PO   |  RT|   RA|   RB  |  /|   XO |Rc  |
    | PO   |  RT|   RA|   RB  |  /|   XO |  / |
    | PO   |  RT|   RA|   /// |OE |   XO |Rc  |

# 1.6.17 A-FORM
    |0     |6     |11      |16     |21      |26    |31 |
    | PO   |  FRT |   FRA  | FRB   |   FRC  |   XO |Rc |
    | PO   |  FRT |   FRA  | FRB   |    /// |   XO |Rc |
    | PO   |  FRT |   FRA  |   /// |   FRC  |   XO |Rc |
    | PO   |  FRT |    /// | FRB   |    /// |   XO |Rc |
    | PO   |   RT |   RA   |   RB  |    BC  |   XO |  /|

# 1.6.18 M-FORM
    |0     |6    |11    |16    |21    |26    |31|
    | PO   |  RS |   RA |   RB |   MB |   ME |Rc|
    | PO   |  RS |   RA |   SH |   MB |   ME |Rc|

# 1.6.19 MD-FORM
    |0     |6    |11    |16    |21    |27|30|31|
    | PO   |  RS |   RA |   sh |   mb |XO|sh|Rc|
    | PO   |  RS |   RA |   sh |   me |XO|sh|Rc|

# 1.6.20 MDS-FORM
    |0     |6    |11    |16    |21    |27    |31|
    | PO   |  RS |   RA |   RB |   mb |   XO |Rc|
    | PO   |  RS |   RA |   RB |   me |   XO |Rc|

# 1.6.21 VA-FORM
    |0      |6     |11     |16     |21|22 |25|26   |31|
    | PO    |  RT  |   RA  |   RB  |   RC    |   XO   |
    | PO    |  VRT |   VRA |   VRB |  VRC    |   XO   |
    | PO    |  VRT |   VRA |   VRB | /|SHB   |   XO   |
    | PO    |  VRT |   VRA |   VRB | /|BFA|/ |   XO   |

# 1.6.21.1 VA2-FORM
    |0      |6     |11     |16     |21  |24|26  |31  |
    | PO    |  RT  |   RA  |   RB  | RC    | XO | Rc |

# 1.6.22 VC-FORM
    |0      |6     |11     |16     |21|22   |31|
    | PO    |  VRT |   VRA |   VRB |Rc|   XO   |

# 1.6.23 VX-FORM
    |0      |6     |11           |16    |21   |31|
    | PO    |  VRT |     VRA     | VRB  |   XO   |
    | PO    |  VRT |      ///    | VRB  |   XO   |
    | PO    |  VRT |     UIM     | VRB  |   XO   |
    | PO    |  VRT | / UIM       | VRB  |   XO   |
    | PO    |  VRT |  // UIM     | VRB  |   XO   |
    | PO    |  VRT |   /// UIM   | VRB  |   XO   |
    | PO    |  VRT |     SIM     |   ///|   XO   |
    | PO    |  VRT |          ///|      |   XO   |
    | PO    |      |///          | VRB  |   XO   |

# 1.6.24 EVX-FORM
    |0      |6   |9 |11    |16    |21    |31|
    | PO    |   RS  |   RA |   RB |   XO    |
    | PO    |   RS  |   RA |   UI |   XO    |
    | PO    |   RT  |   ///|   RB |   XO    |
    | PO    |   RT  |   RA |   RB |   XO    |
    | PO    |   RT  |   RA |   ///|   XO    |
    | PO    |   RT  |   UI |   RB |   XO    |
    | PO    |  BF|//|   RA |   RB |   XO    |
    | PO    |   RT  |   RA |   UI |   XO    |
    | PO    |   RT  |   SI |   ///|   XO    |

# 1.6.25 EVS-FORM
    |0      |6   |11    |16    |21    |29 |31 |
    | PO    |  RT|   RA |   RB |   XO |BFA    |

# 1.6.26 Z22-FORM
    |0      |6  |9 |11     |16     |22    |31 |
    | PO    | BF|//|   FRA |   DCM |   XO | / |
    | PO    | BF|//|  FRAp |   DCM |   XO | / |
    | PO    | BF|//|   FRA |   DGM |   XO | / |
    | PO    | BF|//|  FRAp |   DGM |   XO | / |
    | PO    |  FRT |   FRA |    SH |   XO |Rc |
    | PO    |  FRTp|  FRAp |    SH |   XO |Rc |

# 1.6.27 Z23-FORM
    |0     |6     |11    |15 |16     |21 |23    |31 |
    | PO   |  FRT |    TE    |   FRB |RMC|   XO |Rc |
    | PO   |  FRTp|    TE    |  FRBp |RMC|   XO |Rc |
    | PO   |  FRT |   FRA    |   FRB |RMC|   XO |Rc |
    | PO   |  RT  |   RA     |   RB  |sm |   XO |Rc |
    | PO   |  RT  |   RA     |   RB  |CY |   XO |Rc |
    | PO   |  FRTp|   FRA    |  FRBp |RMC|   XO |Rc |
    | PO   |  FRTp|  FRAp    |  FRBp |RMC|   XO |Rc |
    | PO   |  FRT |  /// | R | FRB   |RMC|   XO |Rc |
    | PO   |  FRTp|  /// | R | FRBp  |RMC|   XO |Rc |

# 1.6.29 SVI-FORM
    |0     |6    |11    |16   |21 |23  |24|25|26    31|
    | PO   |  SVG|rmm   | SVd |ew |SVyx|mm|sk|   XO   |

# 1.6.30 SVL-FORM
    |0     |6    |11    |16   |23 |24 |25 |26    |31 |
    | PO   |  RT |   RA | SVi |ms |vs |vf |   XO |Rc |
    | PO   |  RT | /    | SVi |/  |/  |vf |   XO |Rc |

# 1.6.31 SVC-FORM
    |0     |6    |9    |11     |
    | PO   | SCi | SCm | SCi   |

# 1.6.32 SVR-FORM
    |0     |6    |9    |11    | 15     |
    | PO   | SCi | SCm | SRb  | SRi    |

# 1.6.33 SVD-FORM
    |0     |6    |11   |16   |21      |31 |
    | PO   | RT  |   RA| RC  |  SVD       |
    | PO   | RS  |   RA| RC  |  SVD       |
    | PO   | FRT |   RA| RC  |  SVD       |
    | PO   | FRS |   RA| RC  |  SVD       |

# 1.6.34 SVDS-FORM
    |0     |6      |11    |16   |21    |30  |31 |
    | PO   |   RT  |   RA | RC  | SVDS |  XO    |
    | PO   |   RS  |   RA | RC  | SVDS |  XO    |

# 1.6.35 SVM-FORM
    |0     |6        |11      |16    |21    |25 |26    |31  |
    | PO   |  SVxd   |   SVyd | SVzd | SVrm |vf |   XO      |

# 1.6.35.1 SVM2-FORM
    |0     |6     |10  |11      |16    |21 |24|25 |26    |31  |
    | PO   | SVo  |SVyx|   rmm  | SVd  |XO |mm|sk |   XO      |

# 1.6.36 SVRM-FORM
    |0     |6     |11  |13   |15   |17   |19   |21  |22   |26     |31 |
    | PO   | SVme |mi0 | mi1 | mi2 | mo0 | mo1 |pst |///  | XO        |

# 1.6.37 TLI-FORM
    |0   |6   |11   |16   |21   |29  |31 |
    | PO | RT |  RA |  RB | TLI | XO |Rc |
    | PO | RT |  RA |  RB | TLI | XO |L  |

# 1.6.28 Instruction Fields
    A (6)
        Field used by the tbegin. instruction to specify an
        implementation-specific function.
        Field used by the tend. instruction to specify the
        completion of the outer transaction and all nested
        transactions.
        Formats: X
    AA (30)
        Absolute Address.
        0    The immediate field represents an address
             relative to the current instruction address. For
             I-form branches the effective address of the
             branch target is the sum of the LI field
             sign-extended to 64 bits and the address of
             the branch instruction. For B-form branches
             the effective address of the branch target is
             the sum of the BD field sign-extended to 64
             bits and the address of the branch instruction.
        1    The immediate field represents an absolute
             address. For I-form branches the effective
             address of the branch target is the LI field
             sign-extended to 64 bits. For B-form branches
             the effective address of the branch target is
             the BD field sign-extended to 64 bits.
        Formats: B, I
    AX,A (29,11:15)
        Fields that are concatenated to specify a VSR to
        be used as a source.
        Formats: XX3, XX4
    BA (11:15)
        Field used to specify a bit in the CR to be used as
        a source.
        Formats: XL
    BB (16:20)
         Field used to specify a bit in the CR to be used as
         a source.
         Formats: XL
    BC (21:25)
         Field used to specify a bit in the CR to be used as
         a source.
         Formats: A
    BD (16:29)
         Immediate field used to specify a 14-bit signed
         two's complement branch displacement which is
         concatenated on the right with 0b00 and
         sign-extended to 64 bits.
         Formats: B
    BF (6:8)
         Field used to specify one of the CR fields or one of
         the FPSCR fields to be used as a target.
         Formats: D, X, XL, XX2, XX3, Z22
    BFA (22:24)
         Field used to specify one of the CR fields 
         to be used as a source.
         Formats: VA
    BFA (29:31)
         Field used to specify one of the CR fields or one of
         the FPSCR fields to be used as a source.
         Formats: EVS
    BFA (11:13)
         Field used to specify one of the CR fields or one of
         the FPSCR fields to be used as a source.
         Formats: X, XL
    BH (19:20)
         Field used to specify a hint in the Branch Condi-
         tional to Link Register and Branch Conditional to
         Count Register instructions. The encoding is
         described in Section 2.4, 'Branch Instructions'.
         Formats: XL
    BHRBE (11:20)
         Field used to identify the BHRB entry to be used
         as a source by the Move From Branch History
         Rolling Buffer instruction.
         Formats: XFX
    BI (11:15)
         Field used to specify a bit in the CR to be tested by
         a Branch Conditional instruction.
         Formats: B, XL
    bm (21:25)
         Field used to specify the Bit-mask Mode for bmask
         Formats: BM2
    BO (6:10)
         Field used to specify options for the Branch Condi-
         tional instructions. The encoding is described in
         Section 2.4, 'Branch Instructions'.
         Formats: B, XL, X, XL
    BT (6:10)
         Field used to specify a bit in the CR or in the
         FPSCR to be used as a target.
         Formats: XL
    BX,B (30,16:20)
        Fields that are concatenated to specify a VSR to
        be used as a source.
        Formats: XX2, XX3, XX4
    CT (7:10)
        Field used in X-form instructions to specify a cache
        target (see Section 4.3.2 of Book II).
        Formats: X
    CX,C (28,21:25)
        Fields that are concatenated to specify a VSR to
        be used as a source.
        Formats: XX4
    CY (21:22)
        Immediate field used for addex instruction
        Formats: Z23
    D (16:31)
        Immediate field used to specify a 16-bit signed
        two's complement integer which is sign-extended
        to 64 bits.
        Formats: D
    d0,d1,d2 (16:25,11:15,31)
        Immediate fields that are concatenated to specify a
        16-bit signed two's complement integer which is
        sign-extended to 64 bits.
        Formats: DX
    dc,dm,dx (25,29,11:15)
        Immediate fields that are concatenated to specify
        Data Class Mask.
        Formats: XX2
    DCM (16:21)
        Immediate field used to specify Data Class Mask.
        Formats: Z22
    DCMX (9:15)
        Immediate field used to specify Data Class Mask.
        Formats: X, XX2
    DGM (16:21)
        Immediate field used as the Data Group Mask.
        Formats: Z22
    DM (22:23)
        Immediate field used by xxpermdi instruction as
        doubleword permute control.
        Formats: XX3
    DRM (18:20)
        Immediate operand field used to specify new deci-
        mal floating-point rounding mode.
        Formats: X
    DUI (6:10)
        Field used by the dnh instruction (see Book III-E).
        Formats: XFX
    DUIS (11:20)
        Field used by the dnh instruction (see Book III-E).
        Formats: XFX
    DQ (16:27)
        Immediate field used to specify a 12-bit signed
        two's complement integer which is concatenated
        on the right with 0b0000 and sign-extended to 64
        bits.
        Formats: DQ
    DS (16:29)
        Immediate field used to specify a 14-bit signed
        two's complement integer which is concatenated
        on the right with 0b00 and sign-extended to 64 bits.
        Formats: DS
    EH (31)
        Field used to specify a hint in the Load and
        Reserve instructions. The meaning is described in
        Section 4.6.2, 'Load and Reserve and Store Con-
        ditional Instructions', in Book II.
        Formats: X
    EO (11:12)
        Expanded opcode field
        Formats: X
    EO (11:15)
        Expanded opcode field
        Formats: VX, X, XX2
    EX (31)
        Field used to specify Inexact form of round to
        quad-precision integer.
        Formats: X
    ew (21:22)
        Field used to specify the element width for SVI-Form
        Formats: SVI
    FC (16:20)
        Field used to specify the function code in Load/
        Store Atomic instructions.
        Formats: X
    FLM (7:14)
        Field mask used to identify the FPSCR fields that
        are to be updated by the mtfsf instruction.
        Formats: XFL
    FRA (11:15)
        Field used to specify a FPR to be used as a
        source.
        Formats: A, X, Z22, Z23
    FRAp (11:15)
        Field used to specify an even/odd pair of FPRs to
        be concatenated and used as a source.
        Formats: X, Z22, Z23
    FRB (16:20)
        Field used to specify an FPR to be used as a
        source.
        Formats: A, X, XFL, Z23
    FRBp (16:20)
         Field used to specify an even/odd pair of FPRs to
         be concatenated and used as a source.
         Formats: X, Z23
    FRC (21:25)
         Field used to specify an FPR to be used as a
         source.
         Formats: A
    FRS (6:10)
         Field used to specify an FPR to be used as a
         source.
         Formats: D, X, DX
    FRSp (6:10)
         Field used to specify an even/odd pair of FPRs to
         be concatenated and used as a source.
         Formats: DS, X
    FRT (6:10)
         Field used to specify an FPR to be used as a tar-
         get.
         Formats: A, D, X, Z22, Z23
    FRTp (6:10)
         Field used to specify an even/odd pair of FPRs to
         be concatenated and used as a target.
         Formats: DS, X, Z22, Z23
    FXM (12:19)
         Field mask used to identify the CR fields that are to
         be written by the mtcrf and mtocrf instructions, or
         read by the mfocrf instruction.
         Formats: XFX
    IB (16:20)
         Immediate field used to specify a 5-bit signed inte-
         ger.
         Formats: MDS
    IH (8:10)
         Field used to specify a hint in the SLB Invalidate
         All instruction. The meaning is described in
         Section 5.9.3.2, 'SLB Management Instructions',
         in Book III.
         Formats: X
    IMM8 (13:20)
         Immediate field used to specify an 8-bit integer.
         Formats: X
    IS (6:10)
         Immediate field used to specify a 5-bit signed inte-
         ger.
         Formats: MDS
    L (6)
         Field used to specify whether the mtfsf instruction
         updates the entire FPSCR.
         Formats: XFL
    L2 (9:10)
         Field used by the Data Cache Block Flush instruc-
         tion (see Section 4.3.2 of Book II) and also by the
         Synchronize instruction (see Section 4.6.3 of Book
         II).
         Formats: X
    L (10)
         Field used to specify whether a fixed-point Com-
         pare instruction is to compare 64-bit numbers or
         32-bit numbers.
         Field used by the Compare Range Byte instruction
         to indicate whether to compare against 1 or 2
         ranges of bytes.
         Formats: D, X
    L1 (15)
         Field used by the Move To Machine State Register
         instruction (see Book III).
         Field used by the SLB Move From Entry VSID and
         SLB Move From Entry ESID instructions for imple-
         mentation-specific purposes.
         Formats: X
    L3 (14:15)
         Field used by the Deliver A Random Number
         instruction (see Section 3.3.9, 'Fixed-Point Arith-
         metic Instructions') to choose the random number
         format.
         Formats: X
    L (26)
         Field used to specify whether mask-in occurs in bmask
         Formats: BM2
    L (31)
         Field used to specify whether the grevlut instruction
         updates the whole GPR or the first half.
         Formats: TLI
    LEV (20:26)
         Field used by the System Call instructions.
         Formats: SC
    LI (6:29)
         Immediate field used to specify a 24-bit signed
         two's complement integer which is concatenated
         on the right with 0b00 and sign-extended to 64
         bits.
         Formats: I
    LK (31)
         LINK bit.
         0     Do not set the Link Register.
         1     Set the Link Register. The address of the
               instruction following the Branch instruction is
               placed into the Link Register.
         Formats: B, I, XL
    rmm (11:15)
        Field used to specify a REMAP shape for SVI-Form
        Formats: SVI
    msk (9:10,14:15)
        Field used by crternlogi and crbinlut to select which bits
        of CR Field BF are to be modified. Requires BF to be Read-Modify-Write
        Formats: CRB-Form
    MB (21:25)
        Field used in M-form instructions to specify the first
        1-bit of a 64-bit mask, as described in
        Section 3.3.14, 'Fixed-Point Rotate and Shift
        Instructions' on page 101.
        Formats: M
    mb (21:26)
        Field used in MD-form and MDS-form instructions
        to specify the first 1-bit of a 64-bit mask, as
        described in Section 3.3.14, 'Fixed-Point Rotate
        and Shift Instructions' on page 101.
        Formats: MD, MDS
    me (21:26)
        Field used in MD-form and MDS-form instructions
        to specify the last 1-bit of a 64-bit mask, as
        described in Section 3.3.14, 'Fixed-Point Rotate
        and Shift Instructions' on page 101.
        Formats: MD, MDS
    ME (26:30)
        Field used in M-form instructions to specify the last
        1-bit of a 64-bit mask, as described in
        Section 3.3.14, 'Fixed-Point Rotate and Shift
        Instructions' on page 101.
        Formats: M
    mi0 (11:12)
        Field used in REMAP to select the SVSHAPE for 1st input register
        Formats: SVRM
    mi1 (13:14)
        Field used in REMAP to select the SVSHAPE for 2nd input register
        Formats: SVRM
    mi2 (15:16)
        Field used in REMAP to select the SVSHAPE for 3rd input register
        Formats: SVRM
    mm (24)
        Field used to specify the meaning of the rmm field for SVI-Form
        and SVM2-Form
        Formats: SVI, SVM2
    mo0 (17:18)
        Field used in REMAP to select the SVSHAPE for 1st output register
        Formats: SVRM
    mo1 (19:20)
        Field used in REMAP to select the SVSHAPE for 2nd output register
        Formats: SVRM
    MO (6:10)
        Field used in X-form instructions to specify a sub-
        set of storage accesses.
        Formats: X
    ms (23)
        Field used in Simple-V to specify whether MVL is to be set
        Formats: SVL
    NB (16:20)
        Field used to specify the number of bytes to move
        in an immediate Move Assist instruction.
        Formats: X
    OC (6:20)
        Field used by the Embedded Hypervisor Privilege
        instruction.
        Formats: XL
    OE (21)
        Field used by XO-form instructions to enable set-
        ting OV and SO in the XER.
        Formats: XO
    PO (0:5)
        Primary opcode field.
        Formats: all
    PRS (14)
        Field used to specify whether to invalidate pro-
        cess- or partition-scoped entries for tlbie[l].
        Formats: X
    PS (22)
        Field used to specify preferred sign for BCD opera-
        tions.
        Formats: VX
    pst (21)
        Field used in REMAP to indicate "persistence" mode (REMAP
        continues to apply to multiple instructions)
        Formats: SVRM
    PT (28:31)
        Immediate field used to specify a 4-bit unsigned
        value.
        Formats: DQ
    R (10)
        Field used by the tbegin. instruction to specify the
        start of a ROT.
        Formats: X
    R (15)
        Immediate field that specifies whether the RMC is
        specifying the primary or secondary encoding
        Field used to specify whether to invalidate Radix
        Tree or HPT entries for tlbie[l].
        Formats: X, Z23
    RA (11:15)
        Field used to specify a GPR to be used as a
        source or as a target.
        Formats: A, BM2, D, DQ, DQE, DS, M, MD, MDS, TX, VA, VA2, VX, X, XO, XS, SVL, XB, TLI, Z23
    RB (16:20)
        Field used to specify a GPR to be used as a
        source.
        Formats: A, BM2, M, MDS, VA, VA2, X, XO, TLI, Z23
    Rc (21)
        RECORD bit.
        0    Do not alter the Condition Register.
        1    Set Condition Register Field 6 as described in
             Section 2.3.1,     'Condition  Register'     on
             page 30.
        Formats: VC, XX3
    RC (21:25)
        Field used to specify a GPR to be used as a
        source.
        Formats: VA, VA2, SVD, SVDS
    Rc (31)
        RECORD bit.
        0    Do not alter the Condition Register.
        1    Set Condition Register Field 0 or Field 1 as
             described in Section 2.3.1, 'Condition Regis-
             ter' on page 30.
        Formats: A, M, MD, MDS, VA2, X, XFL, XO, XS, Z22, Z23, SVL, XB, TLI
    RIC (12:13)
        Field used to specify what types of entries to inval-
        idate for tlbie[l].
        Formats: X
    RM (19:20)
        Immediate operand field used to specify new
        binary floating-point rounding mode.
        Formats: X
    RMC (21:22)
        Immediate field used for DFP rounding mode con-
        trol.
        Formats: Z23
    rmm (11:15)
        REMAP Mode field for SVI-Form and SVM2-Form
        Formats: SVI, SVM2
    RO (31)
        Round to Odd override
        Formats: X
    RS (6:10)
        Field used to specify a GPR to be used as a
        source.
        Formats: D, DS, M, MD, MDS, X, XFX, XS
    RSp (6:10)
        Field used to specify an even/odd pair of GPRs to
        be concatenated and used as a source.
        Formats: DS, X
    RT (6:10)
        Field used to specify a GPR to be used as a target.
        Formats: A, BM2, D, DQE, DS, DX, VA, VA2, VX, X, XFX, XO, XX2, SVL, XB, TLI, Z23
    RTp (6:10)
        Field used to specify an even/odd pair of GPRs to
        be concatenated and used as a target.
        Formats: DQ, X
    S (11)
        Immediate field that specifies signed versus
        unsigned conversion.
        Formats: X
    S (20)
        Immediate field that specifies whether or not the
        rfebb     instruction   re-enables      event-based
        branches.
        Formats: XL
    SCi (6:8)
        Index to SV Context Propagation SPR
        Formats: SVC, SVR
    SCm (9:10)
        SV Context Propagation Mode
        Formats: SVC, SVR
    SCi (11:31)
        SV Context Propagation immediate bitfield
        Formats: SVC
    sm (21:22)
        Immediate field used for selecting operands (shift mode)
        Formats: Z23
    SRb (11:14)
        SV REMAP byte-reversal field.
        Formats: SVC
    SRi (15:31)
        SV REMAP immediate FIFO bitfield
        Formats: SVC
    SH (16:20)
        Field used to specify a shift amount.
        Formats: M, X
    SH (16:21)
        Field used to specify a shift amount.
        Formats: Z22
    sh (30,16:20)
        Fields that are concatenated to specify a shift
        amount.
        Formats: MD, XS
    SHB (22:25)
        Field used to specify a shift amount in bytes.
        Formats: VA
    SHW (22:23)
         Field used to specify a shift amount in words.
         Formats: XX3
    SI (16:20)
         Immediate field used to specify a 5-bit signed inte-
         ger.
         Formats: X
    SI (16:31)
         Immediate field used to specify a 16-bit signed
         integer.
         Formats: D
    SIM (11:15)
         Immediate field used to specify a 5-bit signed inte-
         ger.
         Formats: VX
    sk (25)
        Field used to specify dimensional skipping in svindex
        Formats: SVI, SVM2
    SP (11:12)
         Immediate field that specifies signed versus
         unsigned conversion.
         Formats: X
    spr (16:20,11:15)
         Field used to specify a Special Purpose Register
         for the mtspr and mfspr instructions.
         Formats: XFX
    SPR (11:20)
         Field used to specify a Special Purpose Register
         for the mtspr and mfspr instructions.
         Formats: XFX
    SR (12:15)
         Field used by the Segment Register Manipulation
         instructions (see Book III).
         Formats: X
    SVd (16:20)
        Immediate field used to specify the size of the REMAP dimension
        in the svindex and svshape2 instructions
        Formats: SVI, SVM2
    SVD (21:31)
        Immediate field used to specify an 11-bit signed
        two's complement integer which is sign-extended
        to 64 bits.
        Formats: SVD
    SVDS (16:29)
        Immediate field used to specify a 9-bit signed
        two's complement integer which is concatenated
        on the right with 0b00 and sign-extended to 64 bits.
        Formats: SVDS
    SVG (6:10)
        Field used to specify a GPR to be used as a
        source for indexing.
        Formats: SVI
    SVi (16:22)
         Simple-V immediate field for setting VL or MVL
         Formats: SVL
    SVme (6:10)
         Simple-V "REMAP" map-enable bits (0-4)
         Formats: SVRM
    SVo (6:9)
        Field used by the svshape2 instruction as an offset
        Formats: SVM2
    SVrm (21:24)
         Simple-V "REMAP" Mode
         Formats: SVM
    SVxd (6:10)
         Simple-V "REMAP" x-dimension size
         Formats: SVM
    SVyd (11:15)
         Simple-V "REMAP" y-dimension size
         Formats: SVM
    SVzd (16:20)
         Simple-V "REMAP" z-dimension size
         Formats: SVM
    SX,S (28,6:10)
         Fields SX and S are concatenated to specify a
         VSR to be used as a source.
         Formats: DQ
    SX,S (31,6:10)
         Fields SX and S are concatenated to specify a
         VSR to be used as a source.
         Formats: X
    T (9:10)
          Field used to specify the type of invalidation done
          by a TLB Invalidate Local instruction (see Book
          III-E).
         Formats: X
    TBR (11:20)
         Field used by the Move From Time Base instruc-
         tion (see Section 6.1 of Book II).
         Formats: X
    TE (11:15)
         Immediate field that specifies a DFP exponent.
         Formats: Z23
    TH (6:10)
         Field used by the data stream variant of the dcbt
         and dcbtst instructions (see Section 4.3.2 of Book
         II).
         Formats: X
    TLI (21:28)
         Field used by the ternlogi instruction as the
         look-up table.
         Formats: TLI
    TLI (21:25,19:20,31)
        Field used by the crternlogi instruction as the
        look-up table.
        Formats: CRB-Form
    TO (6:10)
         Field used to specify the conditions on which to
         trap.     The    encoding     is    described   in
         Section 3.3.10.1,     'Character-Type     Compare
         Instructions' on page 87.
         Formats: D, X
    TX,T (28,6:10)
         Fields that are concatenated to specify a VSR to
         be used as either a target.
         Formats: DQ
    TX,T (31,6:10)
         Fields that are concatenated to specify a VSR to
         be used as either a target or a source.
         Formats: X, XX2, XX3, XX4
    U (16:19)
         Immediate field used as the data to be placed into
         a field in the FPSCR.
         Formats: X
    UI (16:20)
         Immediate field used to specify a 5-bit unsigned
         integer.
         Formats: TX
    UI (16:31)
         Immediate field used to specify a 16-bit unsigned
         integer.
         Formats: D
    UIM (11:15)
         Immediate field used to specify a 5-bit unsigned
         integer.
         Formats: VX, X
    UIM (12:15)
         Immediate field used to specify a 4-bit unsigned
         integer.
         Formats: VX, XX2
    UIM (13:15)
         Immediate field used to specify a 3-bit unsigned
         integer.
         Formats: VX
    UIM (14:15)
         Immediate field used to specify a 2-bit unsigned
         integer.
         Formats: VX, XX2
    VRA (11:15)
         Field used to specify a VR to be used as a source.
         Formats: VA, VC, VX
    VRB (16:20)
        Field used to specify a VR to be used as a source.
        Formats: VA, VC, VX
    VRC (21:25)
        Field used to specify a VR to be used as a source.
        Formats: VA
    VRS (6:10)
        Field used to specify a VR to be used as a source.
        Formats: DS, X
    VRT (6:10)
        Field used to specify a VR to be used as a target.
        Formats: DS, VA, VC, VX, X
    vf (25)
        Field used in Simple-V to specify whether "Vertical" Mode is set
        Formats: SVL, SVM
    vs (24)
        Field used in Simple-V to specify whether VL is to be set
        Formats: SVL
    W (15)
        Field used by the mtfsfi and mtfsf instructions to
        specify the target word in the FPSCR.
        Formats: X, XFL
    WC (9:10)
        Field used to specify the condition or conditions
        that cause instruction execution to resume after
        executing a wait instruction (see Section 4.6.4 of
        Book II).
        Formats: X
    XBI (21:24)
        Field used to specify a bit in the XER.
        Formats: MDS, MDS, TX
    XBI (16:21)
        Field used to specify a 6-bit unsigned immediate for bit manipulation
        instructions, such as grevi.
        Formats: XB
    XO (21:23,26:31)
        Extended opcode field.
        Formats: SVM2
    XO (21,23:31)
        Extended opcode field.
        Formats: VX
    XO (21:24,26:28)
        Extended opcode field.
        Formats: XX2
    XO (21:24:28)
        Extended opcode field.
        Formats: XX3
    XO (21:28)
        Extended opcode field.
        Formats: XX3
    XO (21:29)
        Extended opcode field.
        Formats: XS, XX2
    XO (21:30)
        Extended opcode field.
        Formats: X, XFL, XFX, XL
    XO (21:31)
        Extended opcode field.
        Formats: VX
    XO (22:30)
        Extended opcode field.
        Formats: XO, XX3, Z22, XB
    XO (22:31)
        Extended opcode field.
        Formats: VC
    XO (23:30)
        Extended opcode field.
        Formats: X, Z23
    XO (25:30)
        Extended opcode field.
        Formats: TX
    XO (26:27)
        Extended opcode field.
        Formats: XX4
    XO (26:30)
        Extended opcode field.
        Formats: A, DX, VA2, SVL, CRB
    XO (26:31)
        Extended opcode field.
        Formats: VA, SVM, SVRM, SVI
    XO (27:29)
        Extended opcode field.
        Formats: MD
    XO (27:30)
        Extended opcode field.
        Formats: MDS
    XO (27:31)
        Extended opcode field.
        Formats: BM2
    XO (29:31)
        Extended opcode field.
        Formats: DQ
    XO (29:30)
        Extended opcode field.
        Formats: TLI
    XO (30)
        Extended opcode field.
        Formats: SC
    XO (30:31)
        Extended opcode field.
        Formats: DQE, DS, SC
    SVyx (23)
        Field used to specify loop dimension order in svindex
        Formats: SVI
    SVyx (10)
        Field used to specify loop dimension order in svshape2
        Formats: SVM2