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

Describe the working of CRT in detail, Describe the Working of CRT The ...

Describe the Working of CRT The electron beam produces a tiny, bright visible spot when it strikes the phosphor-coated screen. A colour CRT monitor has three different coloured

Recursion to an iterative procedure, The data structure required to convert...

The data structure required to convert a recursion to an iterative procedure is  Stack is the data structure required to convert a recursion to an iterative procedure

Explain demand paging, What is Demand paging? Virtual memory is commonl...

What is Demand paging? Virtual memory is commonly executed by demand paging. In demand paging, the pager brings only those essential pages into memory instead of swapping in a

What are vectored interrupts, What are vectored interrupts? To decrease...

What are vectored interrupts? To decrease the time involved in the polling process, a device requesting an interrupt may recognize itself directly to the processor. Then the pr

What is meant by "method-wars" in programming, Before 1994 there were dissi...

Before 1994 there were dissimilar methodologies like Rumbaugh, Booch, Jacobson, and Meyer etc who followed their own notations to mould the systems. The developers were in a di

Java Programming, How to parse n size depth node in java and create output ...

How to parse n size depth node in java and create output in same tree format?

Is it possible to change the color and font of the sheet tab, Yes we can mo...

Yes we can modify the color of sheet tabs. By right clicking on sheet tabs and you will get option change color but you didn't find any option to modify the font of sheet tabs.

Sigmoid units-artificial intelligence, Sigmoid units - Artificial intellige...

Sigmoid units - Artificial intelligence Remember that the function inside units take as input the weighted sum, S, of the values coming from the units associated to it. The fun

What is a parallel port, What is a parallel port? A parallel port trans...

What is a parallel port? A parallel port transfers data in the form a number of bits, typically 8 to 16, concurrently to or from the device.

What are user threads, What are User threads   User threads are support...

What are User threads   User threads are supported above the kernel and are executed by a thread library at the user level. Thread creation & scheduling are done in the user sp

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