3 IA-323.1 3.2 IA-323.3 IA-323.4 IA-32

3.1 IA-323-1

816432864161283.1.1 48

3.1.2 1IA-3202102550655350232102641

22128+12732 768+32 767231+2311263+26312IA-32IEEE754

3.1.3 3-4IA-32Near32Far48Near32NearFar481632Far

3.1.4 323.1.5 2321023214G

3.2 IA-32labelmnemonicargument11argument22argument33 label mnemonic

1argument12argument23argument3

3.3 IA-323.3.1

3.3.2 3.3.3 1

2 81632 24823-9

3.3.4 I/O655368I/OI/OI/O1632I/ODX8I/O256DXI/O

3.4 IA-323.4.1

1MOVMOVMOVDOPDSOPDDOPDSOPD81632

2CMOVcc DOPDSOPDPentium PROEFLAGSCFSFZFOFSOPDDOPD

31XCHGXCHGDOPDSOPDDOPDSOPD2BSWAPBSWAP DOPD320724318151623

3XADDXADDDOPDSOPD

4CMPXCHG CMPXCHGDOPDSOPDALAXEAXSOPDDOPDALAXEAX

5CMPXCHG8B8CMPXCHG8BDOPD6464EDX:EAX64ECX:EBX64EDX:EAX8EDX:EAXECX:EBXEDXECX6432EAXEBX6432

41PUSH DOPDSPESPSP-1SPAHSPSP-1SPALSP

2POP DOPDSPSP+2SP3PUSHA/PUSHAD PUSHAPush All168086PUSHADPush All Double32

4POPA/POPADPOPAPop All16POPADPop All Double3251INportALAXEAX2OUTALAXEAX

61CWD/CDQ CWDAXDX32AX

2CBW/CWDE CBWALAH16AL=80HFFHAHCWDEAXEAX1632AX

3MOVSXMOVSX DOPDSOPDDOPDSOPD

4MOVZXMOVZXDOPDSOPDDOPDSOPD

3.4.2 1 1ADD DOPDSOPDDOPDDOPD+SOPD2ADCAdd with CarryADC DOPDSOPDCDOPD

21SUBSUB DOPDSOPDDOPDSOPDDOPD2SBBSubtract with BorrowSBBDOPDSOPDSUBCF

31MULMUL SOPDALAXALAH8AXDX2IMULMUL

41DIVAXAHALDX:AX8AL16AX8AH16DX2IDIVInteger divisionDIV

51INC12DEC16NEG7CMP

3.4.3 1DAADecimal Adjust for AdditionAL2DASDecimal Adjust for SubtractionDAAAL

3AAAUnpacked BCD[ASCll] Adjust for AdditionASCIIAL4AASUnpacked BCD[ASCII] Adjust for SubtractionASCIIAAAALAL

5AAMUnpacked BCD[ASCII] Adjust for MultiplyASCIIAXAXAXAL6AADUnpacked BCD[ASCII] Adjust for Division AX

3.4.4 1AND1AND1102TESTANDTEST

2OR11103XOR10104NOT

3.4.5 1SALSHLSARSHRSAL DOPDOPD2SHL DOPDOPD2SAR DOPDOPD2SHR DOPDOPD2

80861CLCLIA-3232CL8031

21SHLDSHLD DOPDSOPDOPD316328CL1312SHRD

3ROLRotate LeftRORPorate RightRCLRorate through CF LeftRCRRotate through CF RightROL DOPDOPD28CL131CFCF

3.4.6 1BTBTSBTRBTCBT DOPDSOPD0

2BSFBSRBSF DOPDSOPDSOPD1632BSF0116320

3SETccSETcc DOPD810

3.4.7 1JMPJMP DOPD

CS nearEIP128+127

2JccJcc LabelLabel

3CXECXCXECXCX0+127-128

1LOOPLOOPCXECX1CXECX0IP+162LOOPZLQOPELOOPZLOOPECX1CX0ZF1IP+3LOOPNZLOOPNECX1CX0ZF0IP+

41CALLCALL NearCS Far far

2RETRETRET OPDCALLCALL

RET NearCS Far farCALL

3IRETIRETIRETDCALL

8086 8086 IRET

4INTINTOINT nn02558INTO4EFLAGSOFOF1

51BOUNDBOUNDOPD1.OPD2

2ENTERENTER OPD1OPD2031

3.4.8 1MOVSMove StringMOVS/MOVSB /MOVS/MOVSW /MOVS/MOVSD /SIESIMOVSBMOVSWMOVSDDIEDI

2CMPSCompare StringCMPS/CMPSB/CMPS/CMPSW/CMPS/CMPSD/SIESIDIEDI-

3SCASScan StringSCAS/SCASB/SCAS/SCASW/SCAS/SCASD/ALAXEAXALAXEAXDIEDI

4LODSLoad StringLODS/LODSB/LODS/LODSW/LODS/LODSD/SIESIALAXEAXSIESI

5STOSStore StringSTOS/STOSB/STOS/STOSW/STOS/STOSD/ALAXEAXDIEDIDIEDI

6INS/INSB/INSW/INSDINS m8DXINS m16DXINS m32DXINSBINSWINSD

I/O065535DXES:DIES:EDI1632ESI/O8I/O1632I/ODXES:EDI

7OUTSB/OUTSW/OUTSDOUTS DXm8OUTS DXm16OUTS DXm32OUTSBOUTSWOUTSD

I/ODS:DIDS:EDI1632DSI/O065535DX

3.4.9 EFLAGS3.4.10 far[]48323216/16DSESSSFSGS3216

3.4.11 1LEALEA r16mLEA r32m

2NOP3UD24XLAT/XLATBALALAL5CPUID