ADDEbGb genarithbinary oszapcoszapc Add ADDEvqpGvqp genarithbinary oszapcoszapc Add ADDGbEb genarithbinary oszapcoszapc Add ADDGvqpEvqp genarithbinary oszapcoszapc Add ADD AL Ib genarithbinary oszapcoszapc Add ADDrAXIvds genarithbinary oszapcoszapc Add PUSHES genstack segreg Push Word, Doubleword or Quadword Onto the Stack 10 Invalid Instruction in 64-Bit Mode POPES genstack segreg Pop a Value from the Stack 10 Invalid Instruction in 64-Bit Mode OREbGb genlogical oszapcoszpcaoc Logical Inclusive OR OREvqpGvqp genlogical oszapcoszpcaoc Logical Inclusive OR ORGbEb genlogical oszapcoszpcaoc Logical Inclusive OR ORGvqpEvqp genlogical oszapcoszpcaoc Logical Inclusive OR ORALIb genlogical oszapcoszpcaoc Logical Inclusive OR ORrAXIvds genlogical oszapcoszpcaoc Logical Inclusive OR PUSHCS genstack segreg Push Word, Doubleword or Quadword Onto the Stack 10 Invalid Instruction in 64-Bit Mode 00 00 POPCS genstack segreg Pop a Value from the Stack 01 01 02 ADCEbGb genarithbinary coszapcoszapc Add with Carry ADCEvqpGvqp genarithbinary coszapcoszapc Add with Carry ADCGbEb genarithbinary coszapcoszapc Add with Carry ADCGvqpEvqp genarithbinary coszapcoszapc Add with Carry ADCALIb genarithbinary coszapcoszapc Add with Carry ADCrAXIvds genarithbinary coszapcoszapc Add with Carry PUSHSS genstack segreg Push Word, Doubleword or Quadword Onto the Stack 10 Invalid Instruction in 64-Bit Mode POPSS genstack segreg Pop a Value from the Stack 10 Invalid Instruction in 64-Bit Mode SBBEbGb genarithbinary coszapcoszapc Integer Subtraction with Borrow SBBEvqpGvqp genarithbinary coszapcoszapc Integer Subtraction with Borrow SBBGbEb genarithbinary coszapcoszapc Integer Subtraction with Borrow SBBGvqpEvqp genarithbinary coszapcoszapc Integer Subtraction with Borrow SBBALIb genarithbinary coszapcoszapc Integer Subtraction with Borrow SBBrAXIvds genarithbinary coszapcoszapc Integer Subtraction with Borrow PUSHDS genstack segreg Push Word, Doubleword or Quadword Onto the Stack 10 Invalid Instruction in 64-Bit Mode POPDS genstack segreg Pop a Value from the Stack 10 Invalid Instruction in 64-Bit Mode ANDEbGb genlogical oszapcoszpcaoc Logical AND ANDEvqpGvqp genlogical oszapcoszpcaoc Logical AND ANDGbEb genlogical oszapcoszpcaoc Logical AND ANDGvqpEvqp genlogical oszapcoszpcaoc Logical AND ANDALIb genlogical oszapcoszpcaoc Logical AND ANDrAXIvds genlogical oszapcoszpcaoc Logical AND ES ES prefixsegreg ES segment override prefix 10 prefixbranchcond (use with any branch instruction is reserved) 10 prefixsegreg Null Prefix in 64-bit Mode DAA AL genarithdecimal acoszapcszapco Decimal Adjust AL after Addition 10 Invalid Instruction in 64-Bit Mode SUBEbGb genarithbinary oszapcoszapc Subtract SUBEvqpGvqp genarithbinary oszapcoszapc Subtract SUBGbEb genarithbinary oszapcoszapc Subtract SUBGvqpEvqp genarithbinary oszapcoszapc Subtract SUBALIb genarithbinary oszapcoszapc Subtract SUBrAXIvds genarithbinary oszapcoszapc Subtract CS CS prefixsegreg CS segment override prefix 10 NTAKEN prefixbranchcond Branch not taken prefix (used only with Jcc instructions) 10 prefixbranchcond (branch hint prefixes have no effect in 64-bit mode) 10 prefixsegreg Null Prefix in 64-bit Mode DAS AL genarithdecimal acoszapcszapco Decimal Adjust AL after Subtraction 10 Invalid Instruction in 64-Bit Mode XOREbGb genlogical oszapcoszpcaoc Logical Exclusive OR XOREvqpGvqp genlogical oszapcoszpcaoc Logical Exclusive OR XORGbEb genlogical oszapcoszpcaoc Logical Exclusive OR XORGvqpEvqp genlogical oszapcoszpcaoc Logical Exclusive OR XORALIb genlogical oszapcoszpcaoc Logical Exclusive OR XORrAXIvds genlogical oszapcoszpcaoc Logical Exclusive OR SS SS prefixsegreg SS segment override prefix 10 prefixbranchcond (use with any branch instruction is reserved) 10 prefixsegreg Null Prefix in 64-bit Mode AAA AL AH genarithdecimal aoszapcacoszp ASCII Adjust After Addition 10 Invalid Instruction in 64-Bit Mode CMPEbGb genarithbinary oszapcoszapc Compare Two Operands CMPEvqpGvqp genarithbinary oszapcoszapc Compare Two Operands CMPGbEb genarithbinary oszapcoszapc Compare Two Operands CMPGvqpEvqp genarithbinary oszapcoszapc Compare Two Operands CMPALIb genarithbinary oszapcoszapc Compare Two Operands CMPrAXIvds genarithbinary oszapcoszapc Compare Two Operands DS DS prefixsegreg DS segment override prefix 10 TAKEN prefixbranchcond Branch taken prefix (used only with Jcc instructions) 10 prefixbranchcond (branch hint prefixes have no effect in 64-bit mode) 10 prefixsegreg Null Prefix in 64-bit Mode AAS AL AH genarithdecimal aoszapcacoszp ASCII Adjust AL After Subtraction 10 Invalid Instruction in 64-Bit Mode INCZv genarithbinary oszaposzap Increment by 1 10 REX prefix Access to new 8-bit registers 10 REX.B prefix Extension of the r/m field, base field, or opcode reg field 10 REX.X prefix Extension of the SIB index field 10 REX.XB prefix REX.X and REX.B combination 10 REX.R prefix Extension of the ModR/M reg field 10 REX.RB prefix REX.R and REX.B combination 10 REX.RX prefix REX.R and REX.X combination 10 REX.RXB prefix REX.R, REX.X and REX.B combination DECZv genarithbinary oszaposzap Decrement by 1 10 REX.W prefix 64 Bit Operand Size 10 REX.WB prefix REX.W and REX.B combination 10 REX.WX prefix REX.W and REX.X combination 10 REX.WXB prefix REX.W, REX.X and REX.B combination 10 REX.WR prefix REX.W and REX.R combination 10 REX.WRB prefix REX.W, REX.R and REX.B combination 10 REX.WRX prefix REX.W, REX.R and REX.X combination 10 REX.WRXB prefix REX.W, REX.R, REX.X and REX.B combination PUSHZv genstack Push Word, Doubleword or Quadword Onto the Stack 10 PUSHZvq genstack Push Word, Doubleword or Quadword Onto the Stack POPZv genstack Pop a Value from the Stack 10 POPZvq genstack Pop a Value from the Stack 01 PUSHA AX CX DX BX SP BP SI DI genstack Push All General-Purpose Registers 03 PUSHA AX CX DX BX SP BP SI DI PUSHAD EAX ECX EDX EBX ESP EBP ESI EDI genstack Push All General-Purpose Registers 10 Invalid Instruction in 64-Bit Mode 01 POPA DI SI BP BX DX CX AX genstack Pop All General-Purpose Registers 03 POPA DI SI BP BX DX CX AX POPAD EDI ESI EBP EBX EDX ECX EAX genstack Pop All General-Purpose Registers 10 Invalid Instruction in 64-Bit Mode 01 BOUND Gv Ma eFlags genbreakstack i i i Check Array Index Against Bounds 10 Invalid Instruction in 64-Bit Mode 02 ARPLEwGw system zz Adjust RPL Field of Segment Selector 10 MOVSXD Gdqp Ed genconver Move with Sign-Extension 03 FS FS prefixsegreg FS segment override prefix 10 prefixbranchcond (used only with Jcc instructions) 10 ALTER prefixbranchcond Alternating branch prefix (used only with Jcc instructions) 10 prefixbranchcond (branch hint prefixes have no effect in 64-bit mode) 03 GS GS prefixsegreg GS segment override prefix 10 prefixbranchcond (used only with Jcc instructions) prefix Operand-size override prefix 10 sse2 prefix Precision-size override prefix prefix Address-size override prefix 01 PUSHIvs genstack Push Word, Doubleword or Quadword Onto the Stack 01 IMULGvqpEvqpIvds genarithbinary oszapcocszap Signed Multiply 01 PUSHIbss genstack Push Word, Doubleword or Quadword Onto the Stack 01 IMULGvqpEvqpIbs genarithbinary oszapcocszap Signed Multiply 01 INS Yb DX INSB Yb DX geninout string d Input from Port to String 01 INS Yw DX INSW Yw DX geninout string d Input from Port to String 03 INS Yv DX INSD Yd DX geninout string d Input from Port to String 01 OUTS DX Xb OUTSB DX Xb geninout string d Output String to Port 01 OUTS DX Xw OUTSW DX Xw geninout string d Output String to Port 03 OUTS DX Xv OUTSD DX Xd geninout string d Output String to Port JOJbs genbranchcond o Jump short if overflow (OF=1) JNOJbs genbranchcond o Jump short if not overflow (OF=0) JBJbs JNAEJbs JCJbs genbranchcond c Jump short if below/not above or equal/carry (CF=1) JNBJbs JAEJbs JNCJbs genbranchcond c Jump short if not below/above or equal/not carry (CF=0) JZJbs JEJbs genbranchcond z Jump short if zero/equal (ZF=0) JNZJbs JNEJbs genbranchcond z Jump short if not zero/not equal (ZF=1) JBEJbs JNAJbs genbranchcond cz Jump short if below or equal/not above (CF=1 AND ZF=1) JNBEJbs JAJbs genbranchcond cz Jump short if not below or equal/above (CF=0 AND ZF=0) JSJbs genbranchcond s Jump short if sign (SF=1) JNSJbs genbranchcond s Jump short if not sign (SF=0) JPJbs JPEJbs genbranchcond p Jump short if parity/parity even (PF=1) JNPJbs JPOJbs genbranchcond p Jump short if not parity/parity odd JLJbs JNGEJbs genbranchcond os Jump short if less/not greater (SF!=OF) JNLJbs JGEJbs genbranchcond os Jump short if not less/greater or equal (SF=OF) JLEJbs JNGJbs genbranchcond osz Jump short if less or equal/not greater ((ZF=1) OR (SF!=OF)) JNLEJbs JGJbs genbranchcond osz Jump short if not less nor equal/greater ((ZF=0) AND (SF=OF)) 0 ADDEbIb genarithbinary oszapcoszapc Add 1 OREbIb genlogical oszapcoszpcaoc Logical Inclusive OR 2 ADCEbIb genarithbinary coszapcoszapc Add with Carry 3 SBBEbIb genarithbinary coszapcoszapc Integer Subtraction with Borrow 4 ANDEbIb genlogical oszapcoszpcaoc Logical AND 5 SUBEbIb genarithbinary oszapcoszapc Subtract 6 XOREbIb genlogical oszapcoszpcaoc Logical Exclusive OR 7 CMPEbIb genarithbinary oszapcoszapc Compare Two Operands 0 ADDEvqpIvds genarithbinary oszapcoszapc Add 1 OREvqpIvds genlogical oszapcoszpcaoc Logical Inclusive OR 2 ADCEvqpIvds genarithbinary coszapcoszapc Add with Carry 3 SBBEvqpIvds genarithbinary coszapcoszapc Integer Subtraction with Borrow 4 ANDEvqpIvds genlogical oszapcoszpcaoc Logical AND 5 SUBEvqpIvds genarithbinary oszapcoszapc Subtract 6 XOREvqpIvds genlogical oszapcoszpcaoc Logical Exclusive OR 7 CMPEvqpIvds genarithbinary oszapcoszapc Compare Two Operands 0 ADDEbIb genarithbinary oszapcoszapc Add 1 OREbIb genlogical oszapcoszpcaoc Logical Inclusive OR 2 ADCEbIb genarithbinary coszapcoszapc Add with Carry 3 SBBEbIb genarithbinary coszapcoszapc Integer Subtraction with Borrow 4 ANDEbIb genlogical oszapcoszpcaoc Logical AND 5 SUBEbIb genarithbinary oszapcoszapc Subtract 6 XOREbIb genlogical oszapcoszpcaoc Logical Exclusive OR 7 CMPEbIb genarithbinary oszapcoszapc Compare Two Operands 10 Invalid Instruction in 64-Bit Mode 0 ADDEvqpIbs genarithbinary oszapcoszapc Add 1 03 OREvqpIbs genlogical oszapcoszpcaoc Logical Inclusive OR 2 ADCEvqpIbs genarithbinary coszapcoszapc Add with Carry 3 SBBEvqpIbs genarithbinary coszapcoszapc Integer Subtraction with Borrow 4 03 ANDEvqpIbs genlogical oszapcoszpcaoc Logical AND 5 SUBEvqpIbs genarithbinary oszapcoszapc Subtract 6 03 XOREvqpIbs genlogical oszapcoszpcaoc Logical Exclusive OR 7 CMPEvqpIbs genarithbinary oszapcoszapc Compare Two Operands TESTEbGb genarithbinary oszapcoszpcaoc Logical Compare TESTEvqpGvqp genarithbinary oszapcoszpcaoc Logical Compare XCHGGbEb gendatamov Exchange Register/Memory with Register XCHGGvqpEvqp gendatamov Exchange Register/Memory with Register MOVEbGb gendatamov Move MOVEvqpGvqp gendatamov Move MOVGbEb gendatamov Move MOVGvqpEvqp gendatamov Move MOVEvqpSw gendatamov Move LEAGvqpM gendatamov Load Effective Address MOVSwEvqp gendatamov Move 0 POPEv genstack Pop a Value from the Stack 0 10 POPEvq genstack Pop a Value from the Stack XCHG Zvqp rAX gendatamov Exchange Register/Memory with Register NOP gencontrol No Operation F3 gencontrol No Operation F3 10 PAUSE sse2 cachect Spin Loop Hint CBW AH AL genconver Convert Byte to Word 03 CWDE EAX AX genconver Convert Word to Doubleword 10 CBW AH AL CWDE EAX AX CDQE RAX EAX genconver Convert CWD DX AX genconver Convert Word to Doubleword 03 CDQ EDX EAX genconver Convert Doubleword to Quadword 10 CWD DX AX CDQ EDX EAX CQO RDX RAX genconver Convert CALLFAp genbranch stack Call Procedure 10 Invalid Instruction in 64-Bit Mode FWAIT WAIT x87fpucontrol 0123 0123 Check pending unmasked floating-point exceptions prefixx87fpucontrol 0123 0123 Wait Prefix PUSHF Flags genstack flgctrl odiszapc Push FLAGS Register onto the Stack 03 PUSHF Flags PUSHFD EFlags genstack flgctrl odiszapc Push eFLAGS Register onto the Stack 10 PUSHF Flags PUSHFQ RFlags genstack flgctrl odiszapc Push rFLAGS Register onto the Stack POPF Flags genstack flgctrl odiszapcodiszapc Pop Stack into FLAGS Register 03 POPF Flags POPFD EFlags genstack flgctrl odiszapcodiszapc Pop Stack into eFLAGS Register 10 POPF Flags POPFQ RFlags genstack flgctrl odiszapcodiszapc Pop Stack into rFLAGS Register SAHF AH gendatamov flgctrl szapcszapc Store AH into Flags LAHF AH gendatamov flgctrl szapc Load Status Flags into AH Register MOV AL Ob gendatamov Move MOV rAX Ovqp gendatamov Move MOV Ob AL gendatamov Move MOV Ovqp rAX gendatamov Move MOVS Yb Xb MOVSB Yb Xb gendatamov string d Move Data from String to String MOVS Yw Xw MOVSW Yw Xw gendatamov string d Move Data from String to String 03 MOVS Yv Xv MOVSD Yd Xd gendatamov string d Move Data from String to String 10 MOVS Yvqp Xvqp MOVSW Yw Xw MOVSD Yd Xd MOVSQ Yqp Xqp gendatamov string d Move Data from String to String CMPS Yb Xb CMPSB Yb Xb gen arithstring binary doszapcoszapc Compare String Operands CMPS Yw Xw CMPSW Yw Xw gen arithstring binary doszapcoszapc Compare String Operands 03 CMPS Yv Xv CMPSD Yd Xd gen arithstring binary doszapcoszapc Compare String Operands 10 CMPS Yvqp Xvqp CMPSW Yw Xw CMPSD Yd Xd CMPSQ Yqp Xqp gen arithstring binary doszapcoszapc Compare String Operands TESTALIb genlogical oszapcoszpcaoc Logical Compare TESTrAXIvds genlogical oszapcoszpcaoc Logical Compare STOS Yb AL STOSB Yb AL gendatamov string d Store String STOS Yw AX STOSW Yw AX gendatamov string d Store String 03 STOS Yv eAX STOSD Yd EAX gendatamov string d Store String 10 STOS Yvqp rAX STOSW Yw AX STOSD Yd EAX STOSQ Yqp RAX gendatamov string d Store String LODS AL Xb LODSB AL Yb gendatamov string d Load String LODS AX Xw LODSW AX Xw gendatamov string d Load String 03 LODS eAX Xv LODSD EAX Xd gendatamov string d Load String 10 LODS rAX Xvqp LODSW AX Xw LODSD EAX Xd LODSQ RAX Xqp gendatamov string d Load String SCAS Yb AL SCASB Yb AL gen arithstring binary doszapcoszapc Scan String SCAS Yw AX SCASW Yw AX gen arithstring binary doszapcoszapc Scan String 03 SCAS Yv eAX SCASD Yd EAX gen arithstring binary doszapcoszapc Scan String 10 SCAS Yvqp rAX SCASW Yw AX SCASD Yd EAX SCASQ Yqp RAX gen arithstring binary doszapcoszapc Scan String MOVZbIb gendatamov Move MOVZvqpIvqp gendatamov Move 01 0 ROLEbIb genshftrot oszapcoszapco Rotate 1 ROREbIb genshftrot oszapcoszapco Rotate 2 RCLEbIb genshftrot coszapcoszapco Rotate 3 RCREbIb genshftrot coszapcoszapco Rotate 4 SHLEbIb SALEbIb genshftrot oszapcoszpcoac Shift 5 SHREbIb genshftrot oszapcoszpcoac Shift 6 SALEbIb SHLEbIb genshftrot oszapcoszpcoac Shift 7 SAREbIb genshftrot oszapcoszpcoa Shift 01 0 ROLEvqpIb genshftrot oszapcoszapco Rotate 1 ROREvqpIb genshftrot oszapcoszapco Rotate 2 RCLEvqpIb genshftrot coszapcoszapco Rotate 3 RCREvqpIb genshftrot coszapcoszapco Rotate 4 SHLEvqpIb SALEvqpIb genshftrot oszapcoszpcoac Shift 5 SHREvqpIb genshftrot oszapcoszpcoac Shift 6 SALEvqpIb SHLEvqpIb genshftrot oszapcoszpcoac Shift 7 SAREvqpIb genshftrot oszapcoszpcoa Shift RETNIw genbranch stack Return from procedure RETN genbranch stack Return from procedure LES ES Gv Mp gen datamovsegreg Load Far Pointer 10 Invalid Instruction in 64-Bit Mode LDS DS Gv Mp gen datamovsegreg Load Far Pointer 10 Invalid Instruction in 64-Bit Mode 0 MOVEbIb gendatamov Move 0 MOVEvqpIvds gendatamov Move 01 ENTER rBP IwIb genstack Make Stack Frame for Procedure Parameters 01 LEAVE rBP genstack High Level Procedure Exit RETFIw genbranch stack Return from procedure RETF genbranch stack Return from procedure INT 3 eFlags genbreakstack iii Call to Interrupt Procedure INT Ib eFlags genbreakstack iii Call to Interrupt Procedure INTO eFlags genbreakstack o i i i Call to Interrupt Procedure IRET Flags genbreakstack odiszapcodiszapc Interrupt Return 03 IRETD EFlags genbreakstack odiszapcodiszapc Interrupt Return IRET Flags IRETD EFlags IRETQ RFlags genbreakstack odiszapcodiszapc Interrupt Return 0 ROLEb1 genshftrot oszapcoszapc Rotate 1 ROREb1 genshftrot oszapcoszapc Rotate 2 RCLEb1 genshftrot coszapcoszapc Rotate 3 RCREb1 genshftrot coszapcoszapc Rotate 4 SHLEb1 SALEb1 genshftrot oszapcoszpca Shift 5 SHREb1 genshftrot oszapcoszpca Shift 6 SALEb1 SHLEb1 genshftrot oszapcoszpca Shift 7 SAREb1 genshftrot oszapcoszpca Shift 0 ROLEvqp1 genshftrot oszapcoszapc Rotate 1 ROREvqp1 genshftrot oszapcoszapc Rotate 2 RCLEvqp1 genshftrot coszapcoszapc Rotate 3 RCREvqp1 genshftrot coszapcoszapc Rotate 4 SHLEvqp1 SALEvqp1 genshftrot oszapcoszpca Shift 5 SHREvqp1 genshftrot oszapcoszpca Shift 6 SALEvqp1 SHLEvqp1 genshftrot oszapcoszpca Shift 7 SAREvqp1 genshftrot oszapcoszpca Shift 0 ROLEbCL genshftrot oszapcoszapco Rotate 1 ROREbCL genshftrot oszapcoszapco Rotate 2 RCLEbCL genshftrot coszapcoszapco Rotate 3 RCREbCL genshftrot coszapcoszapco Rotate 4 SHLEbCL SALEbCL genshftrot oszapcoszpcoac Shift 5 SHREbCL genshftrot oszapcoszpcoac Shift 6 SALEbCL SHLEbCL genshftrot oszapcoszpcoac Shift 7 SAREbCL genshftrot oszapcoszpcoa Shift 0 ROLEvqpCL genshftrot oszapcoszapco Rotate 1 ROREvqpCL genshftrot oszapcoszapco Rotate 2 RCLEvqpCL genshftrot coszapcoszapco Rotate 3 RCREvqpCL genshftrot coszapcoszapco Rotate 4 SHLEvqpCL SALEvqpCL genshftrot oszapcoszpcoac Shift 5 SHREvqpCL genshftrot oszapcoszpcoac Shift 6 SALEvqpCL SHLEvqpCL genshftrot oszapcoszpcoac Shift 7 SAREvqpCL genshftrot oszapcoszpca Shift 0A AAM AL AH genarithdecimal oszapcszpoac ASCII Adjust AX After Multiply AMX AL AH Ib genarithdecimal oszapcszpoac Adjust AX After Multiply 10 Invalid Instruction in 64-Bit Mode 0A AAD AL AH genarithdecimal oszapcszpoac ASCII Adjust AX Before Division ADX AL AH Ib genarithdecimal oszapcszpoac Adjust AX Before Division 10 Invalid Instruction in 64-Bit Mode 02 Undefined and Reserved; Does not Generate #UD 02 SALC AL SETALC AL gendatamov c Set AL If Carry 10 Invalid Instruction in 64-Bit Mode XLAT AL BBb XLATB AL BBb gendatamov Table Look-up Translation 0 FADDSTMsr FADDSTEST x87fpuarith 0123 1 023 Add 1 FMULSTMsr FMULSTEST x87fpuarith 0123 1 023 Multiply 2 FCOM ST ESsr x87fpucompar 0123 0123 Compare Real 2 D1 FCOM ST ST1 x87fpucompar 0123 0123 Compare Real 3 FCOMPSTESsr x87fpucompar 0123 0123 Compare Real and Pop 3 D9 FCOMP ST ST1 x87fpucompar 0123 0123 Compare Real and Pop 4 FSUBSTMsr FSUBSTEST x87fpuarith 0123 1 023 Subtract 5 FSUBRSTMsr FSUBRSTEST x87fpuarith 0123 1 023 Reverse Subtract 6 FDIVSTMsr FDIVSTEST x87fpuarith 0123 1 023 Divide 7 FDIVRSTMsr FDIVRSTEST x87fpuarith 0123 1 023 Reverse Divide 0 FLDSTESsr x87fpudatamov 0123 1 023 Load Floating Point Value 1 FXCHSTEST x87fpudatamov 0123 1 023 Exchange Register Contents 1 C9 FXCH ST ST1 x87fpudatamov 0123 1 023 Exchange Register Contents 2 FSTMsrST x87fpudatamov 0123 1 023 Store Floating Point Value 2 D0 FNOP x87fpucontrol 0123 0123 No Operation 3 FSTPMsrST x87fpudatamov 0123 1 023 Store Floating Point Value and Pop 3 FSTP1ESTST x87fpudatamov 0123 1 023 Store Floating Point Value and Pop 3 03 FSTP1ESTST x87fpudatamov 0123 1 023 Store Floating Point Value and Pop 4 FLDENVMe x87fpucontrol 0123 0123 Load x87 FPU Environment 4 E0 FCHSST x87fpuarith 0123 1 023 Change Sign 4 E1 FABSST x87fpuarith 0123 1 023 Absolute Value 4 E4 FTSTST x87fpucompar 0123 0123 Test 4 E5 FXAMST x87fpu 0123 0123 Examine 5 FLDCWMw x87fpucontrol 0123 0123 Load x87 FPU Control Word 5 E8 FLD1ST x87fpuldconst 0123 1 023 Load Constant +1.0 5 E9 FLDL2TST x87fpuldconst 0123 1 023 Load Constant log₂10 5 EA FLDL2EST x87fpuldconst 0123 1 023 Load Constant log₂e 5 EB FLDPIST x87fpuldconst 0123 1 023 Load Constant π 5 EC FLDLG2ST x87fpuldconst 0123 1 023 Load Constant log₁₀2 5 ED FLDLN2ST x87fpuldconst 0123 1 023 Load Constant log_e2 5 EE FLDZST x87fpuldconst</