Cmp-arithmetic instruction-microprocessor, Assembly Language

Assignment Help:

CMP: Compare: - This instruction compares the source operand, which can be a register or memory location an immediate data with a destination operand that might be a register or a memory location. For the purpose of comparison, it subtracts the  source  operand  from  the destination  operand  but does  not stock up the result anywhere. The flags are affected and depending on the result of the subtraction. If both of the operands are equal to zero flag is set. If the source operand is higher than the destination operand, carry flag is set or else is reset. The instance of this instruction are following:

Example :

1. CMP      BX,         0100H          Immediate

2. CMP      0100                          Immediate [AX implicit]

3. CMP      [5000H],OIOOH          Direct

4. CMP      BX,         [SI]               Register indirect

5. CMP      BX,         CX                Register

 


Related Discussions:- Cmp-arithmetic instruction-microprocessor

Space don''t come in ASCII characters while printing?, .MODEL SMALL .STACK...

.MODEL SMALL .STACK 100H .DATA PROMPT DB \''The 256 ASCII Characters are : $\'' .CODE MAIN PROC MOV AX, @DATA ; initialize DS MOV DS, AX

Format of control register-microprocessor, Format of Control Register T...

Format of Control Register The format for the control register is given in Figure. Bit 0 of this register might be one before data may be output  and  bit  two  might be  one

Iret-loop-unconditional branch instruction-microprocessor, IRET : Return f...

IRET : Return from ISR:- When an interrupt service routine is called, before transferring control to it, the IP, CS  register and flag registers are stored in the stack to ment

PIC, LIST p=18f4550 #include org 0x0000 movlw 0x00 _________ movlw 0xFF ...

LIST p=18f4550 #include org 0x0000 movlw 0x00 _________ movlw 0xFF movwf PORTB end .

Project 1: Text Conversion, I need a text conversion program written in ass...

I need a text conversion program written in assembly language

MIPS Assembly, Need help with 2 homework assignments

Need help with 2 homework assignments

Efficient assembly language program, (1) Write a program that will: (a) dis...

(1) Write a program that will: (a) display "Enter Your Name:" (b) convert the entered name to Capital letters (if small), If any other character is entered, the program wil

Org-proc-assemblers directive-microprocessor, ORG : Origin:- The ORG di...

ORG : Origin:- The ORG directive directs the assembler to begin the memory allotment for the specific segment, code or block from the declared  address in the ORG  statement. W

Prime finder - assembly program, Prime Finder - assembly program: Pro...

Prime Finder - assembly program: Problem:  Prime Finder   In this problem you will write a small program that tests whether a given integer is a prime number or not.  Let's

Define word (dw)- assemblers directive-microprocessor, DW : Define Word:- ...

DW : Define Word:- The DW directive serves the same purposes as the DB directive, but now it makes the assembler  which reserves thenumber ofmemory words (16-bit) instead of by

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd