Determine the use of loop instruction, Computer Engineering

Assignment Help:

Q. Determine the use of LOOP instruction?

Program:This program prints the alphabets (A-Z)

; Register used: AX, CX, DX

CODE SEGMENT

ASSUME: CS: CODE.    

MAINP:          MOV   CX, 1AH                    ; 26 in decimal = 1A in hexadecimal Counter.

                        MOV   DL, 41H                     ; Loading DL with ASCII hexadecimal of A.

NEXTC:          MOV   AH, 02H                     ; display result character in DL

            INT      21H                            ; DOS interrupt 

            INC      DL                             ; Increment DL for next char

            LOOP NEXTC                       ; Repeat until CX=0. (Loop automatically decrements

                                                                        ; CS and checks whether it is zero or not)

                        MOV   AX, 4C00H                ; Exit DOS

                        INT      21H                            ; DOS Call

CODE ENDS

END MAINP


Related Discussions:- Determine the use of loop instruction

Grounding a variable - first-order logic, Grounding a variable - first-orde...

Grounding a variable - first-order logic: The perform of making ourselves clear about a variable by introducing an exists or a forall sign is called quantifying the variable.

What is gimp?, The GNU Image Manipulation Program, or GIMP, is a raster gra...

The GNU Image Manipulation Program, or GIMP, is a raster graphics editor application with some support for vector graphics. GIMP is used to process digital graphics & photographs.

Testmanager can be used for performance testing, Rational Testmanager is a ...

Rational Testmanager is a complicated tool that can be used for automating performance tests on client/server systems. A client/server system have client applications accessing a d

Explain about the public key cryptography, Explain about the Public Key Cry...

Explain about the Public Key Cryptography. Public Key Cryptography: It is a cryptographic system which uses two keys as a public key identified to everyone and a private

Dpsd -asynchronous circuits, an asyncronous sequential circuit is described...

an asyncronous sequential circuit is described by the the exitatio function and the output function y=x1x2''+(x1=x2'')y output function z=y a)draw the logic diagram of the circuit.

Explain star topology, Explain Star topology. A network utilizes a star...

Explain Star topology. A network utilizes a star topology if each computer attach to a central point. The following figure demonstrates the concept: Star Topology

Create a factory function and constructor, 1) This project will use an acco...

1) This project will use an account class that has the members: string account_code; string first_name; string last_name; double balance; Provide a constructor that

How do you save data in bdc tables, How do you save data in BDC tables? ...

How do you save data in BDC tables? The data in BDC tables is saved by using the field name 'BDC_OKCODE' and field value of '/11'.

Define the resolution of externally defined symbols, Resolution of external...

Resolution of externally defined symbols is performed by Ans. By Linker resolution of externally defined symbols is performed.

Disk operating system, Q. Disk operating system? The operating system (...

Q. Disk operating system? The operating system (OS) is the first program that should be loaded into the memory of your PC before you can use it for any application. You can st

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