T = instruction tests flag
M = instruction modifies flag
(either sets or resets depending on operands)
0 = instruction resets flag
1 = instruction sets flag
-- = instruction's effect on flag is undefined
R = instruction restores prior value of flag
blank = instruction does not affect flag
Instruction OF SF ZF AF PF CF TF IF DF NT RF AAA -- -- -- TM -- M AAD -- M M -- M -- AAM -- M M -- M -- AAS -- -- -- TM -- M ADC M M M M M TM ADD M M M M M M AND 0 M M -- M 0 ARPL M BOUND BSF/BSR -- -- M -- -- -- BT/BTS/BTR/BTC -- -- -- -- -- M CALL CBW CLC 0 CLD 0 CLI 0 CLTS CMC M CMP M M M M M M CMPS M M M M M M T CWD DAA -- M M TM M TM DAS -- M M TM M TM DEC M M M M M DIV -- -- -- -- -- -- ENTER ESC HLT IDIV -- -- -- -- -- -- IMUL M -- -- -- -- M IN INC M M M M M INS T INT 0 0 INTO T 0 0 IRET R R R R R R R R R T Jcond T T T T T JCXZ JMP LAHF LAR M LDS/LES/LSS/LFS/LGS LEA LEAVE LGDT/LIDT/LLDT/LMSW LOCK LODS T LOOP LOOPE/LOOPNE T LSL M LTR MOV MOV control, debug -- -- -- -- -- -- MOVS T MOVSX/MOVZX MUL M -- -- -- -- M NEG M M M M M M NOP NOT OR 0 M M -- M 0 OUT OUTS T POP/POPA POPF R R R R R R R R R R PUSH/PUSHA/PUSHF RCL/RCR 1 M TM RCL/RCR count -- TM REP/REPE/REPNE RET ROL/ROR 1 M M ROL/ROR count -- M SAHF R R R R R SAL/SAR/SHL/SHR 1 M M M -- M M SAL/SAR/SHL/SHR count -- M M -- M M SBB M M M M M TM SCAS M M M M M M T SET cond T T T T T SGDT/SIDT/SLDT/SMSW SHLD/SHRD -- M M -- M M STC 1 STD 1 STI 1 STOS T STR SUB M M M M M M TEST 0 M M -- M 0 VERR/VERRW M WAIT XCHG XLAT XOR 0 M M -- M 0
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Appendices
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Appendix A -- Opcode Map
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Appendix C -- Status Flag Summary