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CONTENTS
xviii
Vol. 2A
PAGE
Table A-1. Superscripts Utilized in Opcode Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Table A-2. One-byte Opcode Map: (00H — F7H) *. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Table A-3. Two-byte Opcode Map: 00H — 77H (First Byte is 0FH) * . . . . . . . . . . . . . . . . . . . . . . A-11
Table A-4. Three-byte Opcode Map: 00H — F7H (First Two Bytes are 0F 38H) * . . . . . . . . . . A-15
Table A-5. Three-byte Opcode Map: 00H — F7H (First two bytes are 0F 3AH) *. . . . . . . . . . . A-17
Table A-6. Opcode Extensions for One- and Two-byte Opcodes by Group Number * . . . . . . . A-20
Table A-7. D8 Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-23
Table A-8. D8 Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-23
Table A-9. D9 Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-24
Table A-10. D9 Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-24
Table A-11. DA Opcode Map When ModR/M Byte is Within 00H to BFH *. . . . . . . . . . . . . . . . . . . A-25
Table A-12. DA Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-25
Table A-13. DB Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-26
Table A-14. DB Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-26
Table A-15. DC Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-27
Table A-16. DC Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-27
Table A-17. DD Opcode Map When ModR/M Byte is Within 00H to BFH *. . . . . . . . . . . . . . . . . . . A-28
Table A-18. DD Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-28
Table A-19. DE Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-29
Table A-20. DE Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-29
Table A-21. DF Opcode Map When ModR/M Byte is Within 00H to BFH * . . . . . . . . . . . . . . . . . . . A-30
Table A-22. DF Opcode Map When ModR/M Byte is Outside 00H to BFH *. . . . . . . . . . . . . . . . . . A-30
Table B-1. Special Fields Within Instruction Encodings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Table B-2. Encoding of reg Field When w Field is Not Present in Instruction. . . . . . . . . . . . . . . . B-3
Table B-4. Encoding of reg Field When w Field is Not Present in Instruction. . . . . . . . . . . . . . . . B-4
Table B-3. Encoding of reg Field When w Field is Present in Instruction. . . . . . . . . . . . . . . . . . . . B-4
Table B-5. Encoding of reg Field When w Field is Present in Instruction. . . . . . . . . . . . . . . . . . . . B-5
Table B-6. Encoding of Operand Size (w) Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
Table B-7. Encoding of Sign-Extend (s) Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Table B-8. Encoding of the Segment Register (sreg) Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Table B-9. Encoding of Special-Purpose Register (eee) Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7
Table B-11. Encoding of Operation Direction (d) Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Table B-10. Encoding of Conditional Test (tttn) Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Table B-12. Notes on Instruction Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Table B-13. General Purpose Instruction Formats and Encodings
for Non-64-Bit Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Table B-14. Special Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24
Table B-15. General Purpose Instruction Formats and Encodings
for 64-Bit Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24
Table B-16. Pentium Processor Family Instruction Formats and Encodings,
Non-64-Bit Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-53
Table B-17. Pentium Processor Family Instruction Formats and Encodings, 64-Bit Mode . . . . B-53
Table B-18. Encoding of Granularity of Data Field (gg) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-54
Table B-19. MMX Instruction Formats and Encodings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-55
Table B-20. Formats and Encodings of P6 Family Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-58
Table B-21. Formats and Encodings of SSE Floating-Point Instructions. . . . . . . . . . . . . . . . . . . . . B-60
Table B-22. Formats and Encodings of SSE Integer Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . B-66