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 Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte r8(/r) AL CL DL BL AH CH DH BH r16(/r) AX CX DX BX SP BP SI DI r32(/r) EAX ECX EDX EBX ESP EBP ESI EDI mm(/r) MM0 MM1 MM2 MM3 MM4 MM5 MM6 MM7 xmm(/r) XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 (In decimal) /digit (Opcode) 0 1 2 3 4 5 6 7 (In binary) REG = 000 001 010 011 100 101 110 111 Effective Address Mod R/M Value of ModR/M Byte (in Hexadecimal) [EAX] 00 000 00 08 10 18 20 28 30 38 [ECX] 001 01 09 11 19 21 29 31 39 [EDX] 010 02 0A 12 1A 22 2A 32 3A [EBX] 011 03 0B 13 1B 23 2B 33 3B [--][--]1  100 04 0C 14 1C 24 2C 34 3C disp322  101 05 0D 15 1D 25 2D 35 3D [ESI] 110 06 0E 16 1E 26 2E 36 3E [EDI] 111 07 0F 17 1F 27 2F 37 3F [EAX]+disp83  01 000 40 48 50 58 60 68 70 78 [ECX]+disp8 001 41 49 51 59 61 69 71 79 [EDX]+disp8 010 42 4A 52 5A 62 6A 72 7A [EBX]+disp8 011 43 4B 53 5B 63 6B 73 7B [--][--]+disp8 100 44 4C 54 5C 64 6C 74 7C [EBP]+disp8 101 45 4D 55 5D 65 6D 75 7D [ESI]+disp8 110 46 4E 56 5E 66 6E 76 7E [EDI]+disp8 111 47 4F 57 5F 67 6F 77 7F [EAX]+disp32 10 000 80 88 90 98 A0 A8 B0 B8 [ECX]+disp32 001 81 89 91 99 A1 A9 B1 B9 [EDX]+disp32 010 82 8A 92 9A A2 AA B2 BA [EBX]+disp32 011 83 8B 93 9B A3 AB B3 BB [--][--]+disp32 100 84 8C 94 9C A4 AC B4 BC [EBP]+disp32 101 85 8D 95 9D A5 AD B5 BD [ESI]+disp32 110 86 8E 96 9E A6 AE B6 BE [EDI]+disp32 111 87 8F 97 9F A7 AF B7 BF EAX/AX/AL/MM0/XMM0 11 000 C0 C8 D0 D8 E0 E8 F0 F8 ECX/CX/CL/MM/XMM1 001 C1 C9 D1 D9 E1 E9 F1 F9 EDX/DX/DL/MM2/XMM2 010 C2 CA D2 DA E2 EA F2 FA EBX/BX/BL/MM3/XMM3 011 C3 CB D3 DB E3 EB F3 FB ESP/SP/AH/MM4/XMM4 100 C4 CC D4 DC E4 EC F4 FC EBP/BP/CH/MM5/XMM5 101 C5 CD D5 DD E5 ED F5 FD ESI/SI/DH/MM6/XMM6 110 C6 CE D6 DE E6 EE F6 FE EDI/DI/BH/MM7/XMM7 111 C7 CF D7 DF E7 EF F7 FF NOTES: 1. The [--][--] nomenclature means a SIB follows the ModR/M byte. 2. The disp32 nomenclature denotes a 32-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is added to the index. 3. The disp8 nomenclature denotes an 8-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is sign-extended and added to the index. 

 Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte r8(/r) AL CL DL BL AH CH DH BH r16(/r) AX CX DX BX SP BP SI DI r32(/r) EAX ECX EDX EBX ESP EBP ESI EDI mm(/r) MM0 MM1 MM2 MM3 MM4 MM5 MM6 MM7 xmm(/r) XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 (In decimal) /digit (Opcode) 0 1 2 3 4 5 6 7 (In binary) REG = 000 001 010 011 100 101 110 111 Effective Address Mod R/M Value of ModR/M Byte (in Hexadecimal) [EAX] 00 000 00 08 10 18 20 28 30 38 [ECX] 001 01 09 11 19 21 29 31 39 [EDX] 010 02 0A 12 1A 22 2A 32 3A [EBX] 011 03 0B 13 1B 23 2B 33 3B [--][--] *1 100 04 0C 14 1C 24 2C 34 3C disp32 *2 101 05 0D 15 1D 25 2D 35 3D [ESI] 110 06 0E 16 1E 26 2E 36 3E [EDI] 111 07 0F 17 1F 27 2F 37 3F [EAX]+disp8 *3 01 000 40 48 50 58 60 68 70 78 [ECX]+disp8 001 41 49 51 59 61 69 71 79 [EDX]+disp8 010 42 4A 52 5A 62 6A 72 7A [EBX]+disp8 011 43 4B 53 5B 63 6B 73 7B [--][--]+disp8 100 44 4C 54 5C 64 6C 74 7C [EBP]+disp8 101 45 4D 55 5D 65 6D 75 7D [ESI]+disp8 110 46 4E 56 5E 66 6E 76 7E [EDI]+disp8 111 47 4F 57 5F 67 6F 77 7F [EAX]+disp32 10 000 80 88 90 98 A0 A8 B0 B8 [ECX]+disp32 001 81 89 91 99 A1 A9 B1 B9 [EDX]+disp32 010 82 8A 92 9A A2 AA B2 BA [EBX]+disp32 011 83 8B 93 9B A3 AB B3 BB [--][--]+disp32 100 84 8C 94 9C A4 AC B4 BC [EBP]+disp32 101 85 8D 95 9D A5 AD B5 BD [ESI]+disp32 110 86 8E 96 9E A6 AE B6 BE [EDI]+disp32 111 87 8F 97 9F A7 AF B7 BF EAX/AX/AL/MM0/XMM0 11 000 C0 C8 D0 D8 E0 E8 F0 F8 ECX/CX/CL/MM/XMM1 001 C1 C9 D1 D9 E1 E9 F1 F9 EDX/DX/DL/MM2/XMM2 010 C2 CA D2 DA E2 EA F2 FA EBX/BX/BL/MM3/XMM3 011 C3 CB D3 DB E3 EB F3 FB ESP/SP/AH/MM4/XMM4 100 C4 CC D4 DC E4 EC F4 FC EBP/BP/CH/MM5/XMM5 101 C5 CD D5 DD E5 ED F5 FD ESI/SI/DH/MM6/XMM6 110 C6 CE D6 DE E6 EE F6 FE EDI/DI/BH/MM7/XMM7 111 C7 CF D7 DF E7 EF F7 FF NOTES: 1. The [--][--] nomenclature means a SIB follows the ModR/M byte. 2. The disp32 nomenclature denotes a 32-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is added to the index. 3. The disp8 nomenclature denotes an 8-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is sign-extended and added to the index. 

I think you want to check Table 2-2 of Intel® 64 and IA-32 Architectures Developer's Manual: Combined Volumes:

I think you want to check table 2-2 in Intel® 64 and IA-32 Architectures Developer's Manual: Combined Volumes, Volume 2: Instruction Reference Set, Chapter 2: Instruction Format, 2.1.5 Addressing-Mode Encoding of ModR/M and SIB Bytes:

 Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte AL AX EAX MM0 XMM0 0 000 r8(/r) r16(/r) r32(/r) mm(/r) xmm(/r) (In decimal) /digit (Opcode) (In binary) REG = Effective Address Mod R/M CL CX ECX MM1 XMM1 1 001 DL DX EDX MM2 XMM2 2 010 BL BX EBX MM3 XMM3 3 011 AH SP ESP MM4 XMM4 4 100 CH BP EBP MM5 XMM5 5 101 DH SI ESI MM6 XMM6 6 110 BH DI EDI MM7 XMM7 7 111 Value of ModR/M Byte (in Hexadecimal) [EAX] 00 000 00 08 10 18 20 28 30 38 [ECX] 001 01 09 11 19 21 29 31 39 [EDX] 010 02 0A 12 1A 22 2A 32 3A [EBX] 011 03 0B 13 1B 23 2B 33 3B [--][--]1 100 04 0C 14 1C 24 2C 34 3C disp322 101 05 0D 15 1D 25 2D 35 3D [ESI] 110 06 0E 16 1E 26 2E 36 3E [EDI] 111 07 0F 17 1F 27 2F 37 3F [EAX]+disp83 01 000 40 48 50 58 60 68 70 78 [ECX]+disp8 001 41 49 51 59 61 69 71 79 [EDX]+disp8 010 42 4A 52 5A 62 6A 72 7A [EBX]+disp8 011 43 4B 53 5B 63 6B 73 7B [--][--]+disp8 100 44 4C 54 5C 64 6C 74 7C [EBP]+disp8 101 45 4D 55 5D 65 6D 75 7D [ESI]+disp8 110 46 4E 56 5E 66 6E 76 7E [EDI]+disp8 111 47 4F 57 5F 67 6F 77 7F [EAX]+disp32 10 000 80 88 90 98 A0 A8 B0 B8 [ECX]+disp32 001 81 89 91 99 A1 A9 B1 B9 [EDX]+disp32 010 82 8A 92 9A A2 AA B2 BA [EBX]+disp32 011 83 8B 93 9B A3 AB B3 BB [--][--]+disp32 100 84 8C 94 9C A4 AC B4 BC [EBP]+disp32 101 85 8D 95 9D A5 AD B5 BD [ESI]+disp32 110 86 8E 96 9E A6 AE B6 BE [EDI]+disp32 111 87 8F 97 9F A7 AF B7 BF EAX/AX/AL/MM0/XMM0 11 000 C0 C8 D0 D8 E0 E8 F0 F8 ECX/CX/CL/MM/XMM1 001 C1 C9 D1 D9 E1 E9 F1 F9 EDX/DX/DL/MM2/XMM2 010 C2 CA D2 DA E2 EA F2 FA EBX/BX/BL/MM3/XMM3 011 C3 CB D3 DB E3 EB F3 FB ESP/SP/AH/MM4/XMM4 100 C4 CC D4 DC E4 EC F4 FC EBP/BP/CH/MM5/XMM5 101 C5 CD D5 DD E5 ED F5 FD ESI/SI/DH/MM6/XMM6 110 C6 CE D6 DE E6 EE F6 FE EDI/DI/BH/MM7/XMM7 111 C7 CF D7 DF E7 EF F7 FF 

NOTES:

1. The [--][--] nomenclature means a SIB follows the ModR/M byte.
2. The disp32 nomenclature denotes a 32-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is added to the index.
3. The disp8 nomenclature denotes an 8-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is sign-extended and added to the index.

 Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte r8(/r) AL CL DL BL AH CH DH BH r16(/r) AX CX DX BX SP BP SI DI r32(/r) EAX ECX EDX EBX ESP EBP ESI EDI mm(/r) MM0 MM1 MM2 MM3 MM4 MM5 MM6 MM7 xmm(/r) XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 (In decimal) /digit (Opcode) 0 1 2 3 4 5 6 7 (In binary) REG =  000 001 010 011 100 101 110 111 Effective Address Mod R/M Value of ModR/M Byte (in Hexadecimal) [EAX]  00 000  00  08  10  18  20  28  30  38 [ECX]  001  01  09  11  19  21  29  31  39 [EDX]  010  02  0A  12  1A  22  2A  32  3A [EBX]  011  03  0B  13  1B  23  2B  33  3B [--][--]1  100  04  0C  14  1C  24  2C  34  3C disp322  101  05  0D  15  1D  25  2D  35  3D [ESI]  110  06  0E  16  1E  26  2E  36  3E [EDI]  111  07  0F  17  1F  27  2F  37  3F [EAX]+disp83  01 000  40  48  50  58  60  68  70  78 [ECX]+disp8  001  41  49  51  59  61  69  71  79 [EDX]+disp8  010  42  4A  52  5A  62  6A  72  7A [EBX]+disp8  011  43  4B  53  5B  63  6B  73  7B [--][--]+disp8  100  44  4C  54  5C  64  6C  74  7C [EBP]+disp8  101  45  4D  55  5D  65  6D  75  7D [ESI]+disp8  110  46  4E  56  5E  66  6E  76  7E [EDI]+disp8  111  47  4F  57  5F  67  6F  77  7F [EAX]+disp32  10 000  80  88  90  98  A0  A8  B0  B8 [ECX]+disp32  001  81  89  91  99  A1  A9  B1  B9 [EDX]+disp32  010  82  8A  92  9A  A2  AA  B2  BA [EBX]+disp32  011  83  8B  93  9B  A3  AB  B3  BB [--][--]+disp32  100  84  8C  94  9C  A4  AC  B4  BC [EBP]+disp32  101  85  8D  95  9D  A5  AD  B5  BD [ESI]+disp32  110  86  8E  96  9E  A6  AE  B6  BE [EDI]+disp32  111  87  8F  97  9F  A7  AF  B7  BF EAX/AX/AL/MM0/XMM0 11 000  C0  C8  D0  D8  E0  E8  F0  F8 ECX/CX/CL/MM/XMM1  001  C1  C9  D1  D9  E1  E9  F1  F9 EDX/DX/DL/MM2/XMM2  010  C2  CA  D2  DA  E2  EA  F2  FA EBX/BX/BL/MM3/XMM3  011  C3  CB  D3  DB  E3  EB  F3  FB ESP/SP/AH/MM4/XMM4  100  C4  CC  D4  DC  E4  EC  F4  FC EBP/BP/CH/MM5/XMM5  101  C5  CD  D5  DD  E5  ED  F5  FD ESI/SI/DH/MM6/XMM6  110  C6  CE  D6  DE  E6  EE  F6  FE EDI/DI/BH/MM7/XMM7  111  C7  CF  D7  DF  E7  EF  F7  FF NOTES: 1. The [--][--] nomenclature means a SIB follows the ModR/M byte. 2. The disp32 nomenclature denotes a 32-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is added to the index. 3. The disp8 nomenclature denotes an 8-bit displacement that follows the ModR/M byte (or the SIB byte if one is present) and that is sign-extended and added to the index.