mini|300px|Intel 8086 procesor
Intel 8086 ime je za 16-bitni mikroprocesor kojeg je razvila američka tvrtka Intel 1976. godine, ovaj mikroprocesor je temelj standarnom industrijskom mikroprocesoru x86. Slabija inačica Intel 8088 s 8-bitnom vanjskom podatkovnom sabirnicom korišten je za prvo IBM PC računalo. Razlog zašto je 8088 korišten za prvi PC bili su jeftiniji i dostupniji 8-bitni memorijski čipovi.
Tehnički podaci
Takt: 4,77 do 10 MHZ Broj tranzistora: 29.000 Tehnologija: NMOS, CMOS, HMOS Kućište: DIP 40 iglica Adresna sabirnica: 20-bita (1MB) Podatkovna sabirnica: 16-bita Broj naredbi: 117
Popis strojnih naredbi 8086 procesora
Instruction Meaning Notes AAA ASCII adjust AL after addition used with unpacked binary coded decimal AAD ASCII adjust AX before division buggy in the original instruction set, but "fixed" in the NEC V20, causing a number of incompatibilites AAM ASCII adjust AX after multiplication AAS ASCII adjust AL after subtraction ADC Add with carry ADD Add AND Logical AND CALL Call procedure CBW Convert byte to word CLC Clear carry flag CLD Clear direction flag CLI Clear interrupt flag CMC Complement carry flag CMP Compare operands CMPSB Compare bytes in memory CMPSW Compare words CWD Convert word to doubleword DAA Decimal adjust AL after addition (used with packed binary coded decimal) DAS Decimal adjust AL after subtraction DEC Decrement by 1 DIV Unsigned divide ESC Used with floating-point unit HLT Enter halt state IDIV Signed divide IMUL Signed multiply IN Input from port INC Increment by 1 INT Call to interrupt INTO Call to interrupt if overflow IRET Return from interrupt Jxx Jump if condition (JA, JAE, JB, JBE, JC, JCXZ, JE, JG, JGE, JL, JLE, JNA, JNAE, JNB, JNBE, JNC, JNE, JNG, JNGE, JNL, JNLE, JNO, JNP, JNS, JNZ, JO, JP, JPE, JPO, JS, JZ) JMP Jump LAHF Load flags into AH register LDS Load pointer using DS LEA Load Effective Address LES Load ES with pointer LOCK Assert BUS LOCK# signal (for multiprocessing) LODSB Load byte LODSW Load word LOOP/LOOPx Loop control (LOOPE, LOOPNE, LOOPNZ, LOOPZ) MOV Move MOVSB Move byte from string to string MOVSW Move word from string to string MUL Unsigned multiply NEG Two's complement negation NOP No operation NOT Negate the operand, logical NOT OR Logical OR OUT Output to port POP Pop data from stack POPF Pop data into flags register PUSH Push data onto stack PUSHF Push flags onto stack RCL Rotate left (with carry) RCR Rotate right (with carry) REPxx Repeat CMPS/MOVS/SCAS/STOS (REP, REPE, REPNE, REPNZ, REPZ) RET Return from procedure RETN Return from near procedure RETF Return from far procedure ROL Rotate left ROR Rotate right SAHF Store AH into flags SAL Shift Arithmetically left (multiply) SAR Shift Arithmetically right (signed divide) SBB Subtraction with borrow SCASB Compare byte string SCASW Compare word string SHL Shift left (multiply) SHR Shift right (unsigned divide) STC Set carry flag STD Set direction flag STI Set interrupt flag STOSB Store byte in string STOSW Store word in string SUB Subtraction TEST Logical compare (AND) WAIT Wait until not busy Waits until BUSY# pin is inactive (used with floating-point unit) XCHG Exchange data XLAT Table look-up translation XOR Exclusive OR
Kategorija:Intelovi procesori