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  • Assembly tutorial. Contribute to AhmadNaserTurnkeySolutions/emu8086 development by creating an account on GitHub.

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Gladir.com - Manuel de langage de programmation Assembleur 80x86. CMPS :Cette instruction permet d'effectuer la comparaison d'un octet, d'un mot, double mot ou du quadruple mot spécifié avec l'opérande source et destination spécifié et fixe l'état des drapeaux du registres EFLAGS en fonction des résultats de la comparaison. The CMPS instruction in the 8086/8088 is compare string. It iterates until CX is zero, or [DS:SI] is not equal to [ES:DI], incrementing (or decrementing if DF is set) SI and DI, and decrementing ... Say for example was comparing "Hey\0" and "hey\0" and this loop was comparing 4 character strings. The first characters are different and the EFlags register would be set accordingly. However, the cmpsb instruction is repeated and the next characters would be the same.

Non-Confidential PDF versionARM DUI0379H ARM® Compiler v5.06 for µVision® armasm User GuideVersion 5Home > ARM and Thumb Instructions > CMP and CMN 10.29 CMP and CMN Compare and Compare Negative. Syntax CMP{cond} Rn, Operand2 CMN{cond} Rn, Operand2 where: cond is an optional condition code. Rn is the ARM register holding the first operand.

Strings and Character Sets Chapter 15 A string is a collection of objects stored in contiguous memory locations. Strings are usually arrays of bytes, words, or (on 80386 and later processors) double words. The 80x86 microprocessor family supports several instructions specifically designed to cope with strings. Mar 19, 2017 · Http://www.bharatacharyaeducation.com Your Crash course in your Pocket! Microprocessors: 8085, 8086, 80386, Pentium… Microcontrollers: 8051, ARM… Computer Or...

Repeated CMPS and SCAS instructions can be exited if the count is exhausted or if the zero flag fails the repeat condition. These two cases can be distinguished by using either the JCXZ instruction, or by using the conditional jumps that test the zero flag ( JZ , JNZ , and JNE ).

IF (instruction = CMPSD) OR (instruction has operands of type DWORD) THEN OperandSize := 32; ELSE OperandSize := 16; FI; IF AddressSize = 16 THEN use SI for source-index and DI for destination-index ELSE (* AddressSize = 32 *) use ESI for source-index and EDI for destination-index; FI; IF byte type of instruction THEN [source-index] - [destination-index]; (* byte comparison *) IF DF = 0 THEN IncDec := 1 ELSE IncDec := -1; FI; ELSE IF OperandSize = 16 THEN [source-index] - [destination-index ... "m" is the number of bytes in the next instruction 386 "m" is the number of components in the next instruction (the instruction coding (each byte); plus the data and the displacement are all considered components) 8088/8086 Effective Address (EA) Calculation Mar 19, 2017 · Http://www.bharatacharyaeducation.com Your Crash course in your Pocket! Microprocessors: 8085, 8086, 80386, Pentium… Microcontrollers: 8051, ARM… Computer Or... IF (instruction = CMPSD) OR (instruction has operands of type DWORD) THEN OperandSize := 32; ELSE OperandSize := 16; FI; IF AddressSize = 16 THEN use SI for source-index and DI for destination-index ELSE (* AddressSize = 32 *) use ESI for source-index and EDI for destination-index; FI; IF byte type of instruction THEN [source-index] - [destination-index]; (* byte comparison *) IF DF = 0 THEN IncDec := 1 ELSE IncDec := -1; FI; ELSE IF OperandSize = 16 THEN [source-index] - [destination-index ...

Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ...

CMPS: Compare String Byte or String Word . The CMPS instruction can be used to compare two strings of byte or words. The length of the string must be stored in the register CX. If both the byte or word strings are equal, zero Flag is set. Strings and Character Sets Chapter 15 A string is a collection of objects stored in contiguous memory locations. Strings are usually arrays of bytes, words, or (on 80386 and later processors) double words. The 80x86 microprocessor family supports several instructions specifically designed to cope with strings.

When a fault occurs during the execution of a CMPS or SCAS instruction that is prefixed with REPE or REPNE, the EFLAGS value is restored to the state prior to the execution of the instruction. Since the SCAS and CMPS instructions do not use EFLAGS as an input, the processor can resume the instruction after the page fault handler. The CMPS instruction in the 8086/8088 is compare string. the compare instruction of 808 is used to compare the 2 operands. syntax: cmp op1,op2 algorithm:. Description of system bus and memory unit, Instruction execution, 8086 internal architecture, INTEL 8086 Instruction Set: INTEL 8086 Instruction Set RCET Microprocessor & Microcontroller 1 Suresh P. Nair [AIE, ME, (PhD)] MIEEE Professor & Head Department of Electronics and Communication Engineering Royal College of Engineering and Technology Chiramanangad PO, Akkikkavu, Thrissur, Kerala, India

Microprocessor - 8086 Instruction Sets - The 8086 microprocessor supports 8 types of instructions − Gladir.com - Manuel de langage de programmation Assembleur 80x86. CMPS :Cette instruction permet d'effectuer la comparaison d'un octet, d'un mot, double mot ou du quadruple mot spécifié avec l'opérande source et destination spécifié et fixe l'état des drapeaux du registres EFLAGS en fonction des résultats de la comparaison.

6.2 The 80x86 String Instructions All members of the 80x86 family support five different string instructions: MOVS x, CMPS x, SCAS x, LODS x, and STOS x 1. (x = B, W, or D for byte, word, or double word, respectively. This text will generally drop the x suffix when talking about these string instructions in a general sense.) They are the string ... Assembly tutorial. Contribute to AhmadNaserTurnkeySolutions/emu8086 development by creating an account on GitHub.

The CMPS instruction in the 8086/8088 is compare string. the compare instruction of 808 is used to compare the 2 operands. syntax: cmp op1,op2 algorithm:. Description of system bus and memory unit, Instruction execution, 8086 internal architecture, Apr 22, 2010 · The 8086 has a 6 byte instruction queue, and the 8088 has a 4 byte queue. The 8088 was the chip used in the first IBM PC; the 8086 wasn't used until later models. Since they share the exact same instruction set, which is referred to as the "x86 instruction set" these days, this is often confused. The MOV instruction is the most important command in the 8086 because it moves data from one location to another. It also has the widest variety of parameters; so it the assembler programmer can use MOV effectively, the rest of the commands are easier to understand.

"m" is the number of bytes in the next instruction 386 "m" is the number of components in the next instruction (the instruction coding (each byte); plus the data and the displacement are all considered components) 8088/8086 Effective Address (EA) Calculation Nov 23, 2013 · 8086 Microprocessor 8087 instructions are inserted in the 8086 program Co-processor – Intel 8087 8086 and 8087 reads instruction bytes and puts them in the respective queues NOP 8087 instructions have 11011 as the MSB of their first code byte Ref: Microprocessor, Atul P. Godse, Deepali A. Gode, Technical publications, Chap 11 129 127. - The CMP instruction can be used to compare two 8-bit or two 16-bit numbers. - Whenever a compare operation is performed the result of such an operation reflects in one of the six status flags CF, AF, OF, PF, SF and ZF. -The CMP operation is also known as the subtraction method as it uses two`s...

"m" is the number of bytes in the next instruction 386 "m" is the number of components in the next instruction (the instruction coding (each byte); plus the data and the displacement are all considered components) 8088/8086 Effective Address (EA) Calculation This document contains general information about the Intel 80x86 family architecture and complete (I hope) instruction set of this processors up to 80486. I rewrote the file intel.doc from the PC Games Programmers Encyclopedia 1.0 to a html format. Dec 16, 2018 · CMP compares two values and CMPS compares two strings (actually, two arrays) by setting appropriate CPU flags depending of results of comparison. So, we have: CMP Operand1, Operand2 where (OperandN is either 8/16bit immediate value or register or memory location - actually it might be even 32/64bit but question states 8086 not 80x86) so: Assembly tutorial. Contribute to AhmadNaserTurnkeySolutions/emu8086 development by creating an account on GitHub.

Apr 22, 2010 · The 8086 has a 6 byte instruction queue, and the 8088 has a 4 byte queue. The 8088 was the chip used in the first IBM PC; the 8086 wasn't used until later models. Since they share the exact same instruction set, which is referred to as the "x86 instruction set" these days, this is often confused.

The condition codes used by the Jcc, CMOVcc, and SETcc instructions are based on the results of a CMP instruction. Appendix B, EFLAGS Condition Codes, in the IA-32 Intel Architecture Software Developer's Manual, Volume 1, shows the relationship of the status flags and the condition codes. Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ...

This is the full 8086/8088 instruction set of Intel. Most if not all of these instructions are available in 32-bit mode; they just operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts. See also x86 assembly language for a quick tutorial for this processor family. When a fault occurs during the execution of a CMPS or SCAS instruction that is prefixed with REPE or REPNE, the EFLAGS value is restored to the state prior to the execution of the instruction. Since the SCAS and CMPS instructions do not use EFLAGS as an input, the processor can resume the instruction after the page fault handler.

use aam only after executing a mul instruction between two BCD digits (unpacked). mul stores the result in the AX register. The result is less than 100 so it can be contained in the AL register (the low byte of the AX register). aam unpacks the AL result by dividing AL by 10, stores the quotient (most-significant digit) in AH, and stores the ... The CMPSB(W) instruction is almost always used with a REP(E/Z) prefix to compare multiple words/bytes. The result of the comparison can be gleaned from flag updates. Usage CMPS src, dest The 8086 microprocessor is equipped with special instructions to handle string operations. By string we mean a series of data words or bytes that reside in consecutive memory locations. The string instructions of the 8086 permit a programmer to implement operations such as to move data from one block of memory to a block elsewhere in memory.

Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ... cmp, cpi, ana, ani, xra,xri, ora, ori 1. CMP: - (compare register or memory with accumulator) The contents of the operand register or memory are M compared with the contents of the accumulator. The CMPS instruction in the 8086/8088 is compare string. It iterates until CX is zero, or [DS:SI] is not equal to [ES:DI], incrementing (or decrementing if DF is set) SI and DI, and decrementing ...

Dec 21, 2015 · 8086 instructions 1. Instruction Set of 8086 The 8086 instructions are categorized into the following main types. i. Data Copy / Transfer Instructions ii. Arithmetic and Logical Instructions iii. Branch Instructions iv. Loop Instructions v. Machine Control Instructions vi. Flag Manipulation Instructions vii. Shift and Rotate Instructions viii. Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ...

Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ...

Check CX. If it is zero, exit the iteration, and move to the next instruction. Acknowledge any pending interrupts. Perform the string operation once. Decrement CX or ECX by one; no flags are modified. Check the zero flag if the string operation is SCAS or CMPS. If the repeat condition does not hold, exit the iteration and move to the next instruction.

Non-Confidential PDF versionARM DUI0379H ARM® Compiler v5.06 for µVision® armasm User GuideVersion 5Home > ARM and Thumb Instructions > CMP and CMN 10.29 CMP and CMN Compare and Compare Negative. Syntax CMP{cond} Rn, Operand2 CMN{cond} Rn, Operand2 where: cond is an optional condition code. Rn is the ARM register holding the first operand.

This is the full 8086/8088 instruction set of Intel. Most if not all of these instructions are available in 32-bit mode; they just operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts. See also x86 assembly language for a quick tutorial for this processor family. The CMPS instruction in the 8086/8088 is compare string. It iterates until CX is zero, or [DS:SI] is not equal to [ES:DI], incrementing (or decrementing if DF is set) SI and DI, and decrementing ... Aug 11, 2018 · 8086 String Instructions: REP/REPE/REPZ/REPNE/REPNZ Instruction : REP is a prefix which is written before one... MOVS/MOVSB/MOVSW Instruction : This instruction copies a byte or word from a location in... CMPS/CMPSB/CMPSW Instruction : A 8086 String Instructions is a series of the same type... ... CMPS: Compare String Byte or String Word . The CMPS instruction can be used to compare two strings of byte or words. The length of the string must be stored in the register CX. If both the byte or word strings are equal, zero Flag is set.

On peut diviser les instructions du 8086/8088 en 6 groupes comme suit : Instructions de transfert de données, instructions arithmétiques, instructions de bits (logiques), instructions de sauts de programme, instructions de chaîne de caractères, instructions de contrôle de processus, instructions d'interruptions. The CMPS instruction compares two strings. This instruction compares two data items of one byte, word or doubleword, pointed to by the DS:SI and ES:DI registers and sets the flags accordingly. You can also use the conditional jump instructions along with this instruction. cmp, cpi, ana, ani, xra,xri, ora, ori 1. CMP: - (compare register or memory with accumulator) The contents of the operand register or memory are M compared with the contents of the accumulator. String Instructions MOVS, CMPS, LODS, SCAS, and STOS Welcome. Hi! Welcome to the thirteenth chapter of this series. I hope that you really understand the array concepts we discussed in the last chapter. Now, I'm going to explain the basic string instruction. As you have noticed that in assembly, a string is basically an array. The CMPSB(W) instruction is almost always used with a REP(E/Z) prefix to compare multiple words/bytes. The result of the comparison can be gleaned from flag updates. Usage CMPS src, dest

Say for example was comparing "Hey\0" and "hey\0" and this loop was comparing 4 character strings. The first characters are different and the EFlags register would be set accordingly. However, the cmpsb instruction is repeated and the next characters would be the same. The CMPS, CMPSB, CMPSW, and CMPSD instructions can be preceded by the REP prefix for block comparisons of ECX bytes, words, or doublewords. More often, however, these instructions will be used in a LOOP construct that takes some action based on the setting of the status flags before the next comparison is made.

The CMPS instruction in the 8086/8088 is compare string. the compare instruction of 808 is used to compare the 2 operands. syntax: cmp op1,op2 algorithm:. Description of system bus and memory unit, Instruction execution, 8086 internal architecture, Dec 16, 2018 · CMP compares two values and CMPS compares two strings (actually, two arrays) by setting appropriate CPU flags depending of results of comparison. So, we have: CMP Operand1, Operand2 where (OperandN is either 8/16bit immediate value or register or memory location - actually it might be even 32/64bit but question states 8086 not 80x86) so: Aug 11, 2018 · 8086 String Instructions: REP/REPE/REPZ/REPNE/REPNZ Instruction : REP is a prefix which is written before one... MOVS/MOVSB/MOVSW Instruction : This instruction copies a byte or word from a location in... CMPS/CMPSB/CMPSW Instruction : A 8086 String Instructions is a series of the same type... ...

6.2 The 80x86 String Instructions All members of the 80x86 family support five different string instructions: MOVS x, CMPS x, SCAS x, LODS x, and STOS x 1. (x = B, W, or D for byte, word, or double word, respectively. This text will generally drop the x suffix when talking about these string instructions in a general sense.) They are the string ... IF (instruction = CMPSD) OR (instruction has operands of type DWORD) THEN OperandSize := 32; ELSE OperandSize := 16; FI; IF AddressSize = 16 THEN use SI for source-index and DI for destination-index ELSE (* AddressSize = 32 *) use ESI for source-index and EDI for destination-index; FI; IF byte type of instruction THEN [source-index] - [destination-index]; (* byte comparison *) IF DF = 0 THEN IncDec := 1 ELSE IncDec := -1; FI; ELSE IF OperandSize = 16 THEN [source-index] - [destination-index ...

Say for example was comparing "Hey\0" and "hey\0" and this loop was comparing 4 character strings. The first characters are different and the EFlags register would be set accordingly. However, the cmpsb instruction is repeated and the next characters would be the same. The CMPS, CMPSB, CMPSW, CMPSD, and CMPSQ instructions can be preceded by the REP prefix for block comparisons. More often, however, these instructions will be used in a LOOP construct that takes some action based on the setting of the status flags before the next comparison is made. "m" is the number of bytes in the next instruction 386 "m" is the number of components in the next instruction (the instruction coding (each byte); plus the data and the displacement are all considered components) 8088/8086 Effective Address (EA) Calculation The CMPS, CMPSB, CMPSW, CMPSD, and CMPSQ instructions can be preceded by the REP prefix for block comparisons. More often, however, these instructions will be used in a LOOP construct that takes some action based on the setting of the status flags before the next comparison is made.

The CMPS instruction in the 8086/8088 is compare string. It iterates until CX is zero, or [DS:SI] is not equal to [ES:DI], incrementing (or decrementing if DF is set) SI and DI, and decrementing ...

The condition codes used by the Jcc, CMOVcc, and SETcc instructions are based on the results of a CMP instruction. Appendix B, EFLAGS Condition Codes, in the IA-32 Intel Architecture Software Developer's Manual, Volume 1, shows the relationship of the status flags and the condition codes. Dec 16, 2014 · The 8086 instruction set contains no-operand, single-operand, and two-operand instructions. Except for string instructions that involve array operations, 8086 instructions do not permit memory-to-memory operations. Appendices F and H provide 8086 instruction reference data and the instruction set (alphabetical order), respectively. The 8086 ... The CMPS instruction compares two strings. This instruction compares two data items of one byte, word or doubleword, pointed to by the DS:SI and ES:DI registers and sets the flags accordingly. You can also use the conditional jump instructions along with this instruction. The CMPS instruction compares two strings. This instruction compares two data items of one byte, word or doubleword, pointed to by the DS:SI and ES:DI registers and sets the flags accordingly. You can also use the conditional jump instructions along with this instruction. INTEL 8086 Instruction Set: INTEL 8086 Instruction Set RCET Microprocessor & Microcontroller 1 Suresh P. Nair [AIE, ME, (PhD)] MIEEE Professor & Head Department of Electronics and Communication Engineering Royal College of Engineering and Technology Chiramanangad PO, Akkikkavu, Thrissur, Kerala, India

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String Instructions MOVS, CMPS, LODS, SCAS, and STOS Welcome. Hi! Welcome to the thirteenth chapter of this series. I hope that you really understand the array concepts we discussed in the last chapter. Now, I'm going to explain the basic string instruction. As you have noticed that in assembly, a string is basically an array. Dec 21, 2015 · 8086 instructions 1. Instruction Set of 8086 The 8086 instructions are categorized into the following main types. i. Data Copy / Transfer Instructions ii. Arithmetic and Logical Instructions iii. Branch Instructions iv. Loop Instructions v. Machine Control Instructions vi. Flag Manipulation Instructions vii. Shift and Rotate Instructions viii. 6.2 The 80x86 String Instructions All members of the 80x86 family support five different string instructions: MOVS x, CMPS x, SCAS x, LODS x, and STOS x 1. (x = B, W, or D for byte, word, or double word, respectively. This text will generally drop the x suffix when talking about these string instructions in a general sense.) They are the string ... Repeated CMPS and SCAS instructions can be exited if the count is exhausted or if the zero flag fails the repeat condition. These two cases can be distinguished by using either the JCXZ instruction, or by using the conditional jumps that test the zero flag ( JZ , JNZ , and JNE ).

use aam only after executing a mul instruction between two BCD digits (unpacked). mul stores the result in the AX register. The result is less than 100 so it can be contained in the AL register (the low byte of the AX register). aam unpacks the AL result by dividing AL by 10, stores the quotient (most-significant digit) in AH, and stores the ... The CMPS instruction in the 8086/8088 is compare string. It iterates until CX is zero, or [DS:SI] is not equal to [ES:DI], incrementing (or decrementing if DF is set) SI and DI, and decrementing ... The CMPS instruction compares two strings. This instruction compares two data items of one byte, word or doubleword, pointed to by the DS:SI and ES:DI registers and sets the flags accordingly. You can also use the conditional jump instructions along with this instruction.

Aug 11, 2018 · 8086 String Instructions: REP/REPE/REPZ/REPNE/REPNZ Instruction : REP is a prefix which is written before one... MOVS/MOVSB/MOVSW Instruction : This instruction copies a byte or word from a location in... CMPS/CMPSB/CMPSW Instruction : A 8086 String Instructions is a series of the same type... ... Apr 22, 2010 · The 8086 has a 6 byte instruction queue, and the 8088 has a 4 byte queue. The 8088 was the chip used in the first IBM PC; the 8086 wasn't used until later models. Since they share the exact same instruction set, which is referred to as the "x86 instruction set" these days, this is often confused.

Feb 18, 2019 · CMPSB | CMPSW | CMPS String Instruction in Assembly Language in Urdu/Hindi | CMPS | CMPS String Instruction | CPMS Instruction | Assembly Language | Assembly Language Programming in Urdu/Hindi ... CMPS: Compare String Byte or String Word . The CMPS instruction can be used to compare two strings of byte or words. The length of the string must be stored in the register CX. If both the byte or word strings are equal, zero Flag is set.

The CMPS instruction in the 8086/8088 is compare string. the compare instruction of 808 is used to compare the 2 operands. syntax: cmp op1,op2 algorithm:. Description of system bus and memory unit, Instruction execution, 8086 internal architecture,

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On peut diviser les instructions du 8086/8088 en 6 groupes comme suit : Instructions de transfert de données, instructions arithmétiques, instructions de bits (logiques), instructions de sauts de programme, instructions de chaîne de caractères, instructions de contrôle de processus, instructions d'interruptions.

Loads the memory byte or word addressed in the destination register into the AL, AX, or EAX register. Before executing the lods instruction, load the index values into the SI source-index register. After the data is loaded, the source-index register is automatically incremented or decremented as determined by the value of the direction flag (DF). 6.2 The 80x86 String Instructions All members of the 80x86 family support five different string instructions: MOVS x, CMPS x, SCAS x, LODS x, and STOS x 1. (x = B, W, or D for byte, word, or double word, respectively. This text will generally drop the x suffix when talking about these string instructions in a general sense.) They are the string ...

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- The CMP instruction can be used to compare two 8-bit or two 16-bit numbers. - Whenever a compare operation is performed the result of such an operation reflects in one of the six status flags CF, AF, OF, PF, SF and ZF. -The CMP operation is also known as the subtraction method as it uses two`s... ®Moon rocket pre roll review®Arabistan cidde gezilecek yerlerManzil souk dubaiMain ghar jaa raha hoon in english
String Instructions MOVS, CMPS, LODS, SCAS, and STOS Welcome. Hi! Welcome to the thirteenth chapter of this series. I hope that you really understand the array concepts we discussed in the last chapter. Now, I'm going to explain the basic string instruction. As you have noticed that in assembly, a string is basically an array. The MOV instruction is the most important command in the 8086 because it moves data from one location to another. It also has the widest variety of parameters; so it the assembler programmer can use MOV effectively, the rest of the commands are easier to understand.
Mar 19, 2017 · Http://www.bharatacharyaeducation.com Your Crash course in your Pocket! Microprocessors: 8085, 8086, 80386, Pentium… Microcontrollers: 8051, ARM… Computer Or...
The CMPS, CMPSB, CMPSW, CMPSD, and CMPSQ instructions can be preceded by the REP prefix for block comparisons. More often, however, these instructions will be used in a LOOP construct that takes some action based on the setting of the status flags before the next comparison is made. ®One piece character design bad®Asus optimal redditDiy hair styling creamDzieje grzechu opracowanie
The MOV instruction is the most important command in the 8086 because it moves data from one location to another. It also has the widest variety of parameters; so it the assembler programmer can use MOV effectively, the rest of the commands are easier to understand. Dec 21, 2015 · 8086 instructions 1. Instruction Set of 8086 The 8086 instructions are categorized into the following main types. i. Data Copy / Transfer Instructions ii. Arithmetic and Logical Instructions iii. Branch Instructions iv. Loop Instructions v. Machine Control Instructions vi. Flag Manipulation Instructions vii. Shift and Rotate Instructions viii.
Documentation Home > IA-32 Assembly Language Reference Manual > Chapter 2 Instruction-Set Mapping > String Instructions > Repeat String Operation (rep, repnz, repz) IA-32 Assembly Language Reference Manual
Dec 16, 2018 · CMP compares two values and CMPS compares two strings (actually, two arrays) by setting appropriate CPU flags depending of results of comparison. So, we have: CMP Operand1, Operand2 where (OperandN is either 8/16bit immediate value or register or memory location - actually it might be even 32/64bit but question states 8086 not 80x86) so: Dec 21, 2015 · 8086 instructions 1. Instruction Set of 8086 The 8086 instructions are categorized into the following main types. i. Data Copy / Transfer Instructions ii. Arithmetic and Logical Instructions iii. Branch Instructions iv. Loop Instructions v. Machine Control Instructions vi. Flag Manipulation Instructions vii. Shift and Rotate Instructions viii.