repne instruction in 8086
scas instructionstring compare instruction
cmpsw
movs instruction in 8086
cmpsb assembly example
compare instruction assembly
cmps instruction in 8086 example

The compare string instructions are used to compare two strings. When the first form, CMPS des_string, src_string, is used the assembler will replace it by Assembly CMPS Instruction - Learn Assembly Programming in simple and easy steps starting from basic to advanced concepts with examples including Before executing the cmps instruction, load the index values into the SI source- and DI cmps subtracts the operand indexed by the destination-index from the CMPS Compare String (Byte or Word) Flags: O D I T S Z A P C SI SI - n DI DI - n This instruction compares two values by subtracting the byte or word pointed "The cmps instruction compares two strings. The CPU compares the string referenced by es:di to the string pointed at by ds:si. Cx contains the CMPS - Compare String (Byte, Word or Doubleword) Usage: CMPS dest,src CMPSB CMPSW CMPSD (386+) Modifies flags: AF CF OF PF SF ZF Subtracts A6, CMPS m8, m8, Compares byte at address DS:(E)SI with byte at address The CMPS, CMPSB, CMPSW, and CMPSD instructions can be preceded by the Opcode. Instruction. Description. A6. CMPS m8, m8. Compares byte at address DS:(E)SI with byte at address ES:(E)DI and sets the status flags accordingly. A7. CMPS/CMPSB/CMPSW/CMPSD -- Compare String Operands IF (instruction = CMPSD) OR (instruction has operands of type DWORD) THEN OperandSizeCMP compares two values and CMPS compares two strings (actually, two arrays) by setting appropriate CPU flags depending of results of comparison. So, we