Program for declare the threshold, Assembly Language

Assignment Help:

1. Start your program at address $8500. To do this you need to inform the assembler, through the EQU and ORG assembler directives, that you want your program to start at $8500. This can be done as shown below:

 (leave 2 tab-spaces) ROMSTART EQU $8500

 ORG ROMSTART

The first line above equates the string ROMSTART with $8500. If you mention ROMSTART in any subsequent part of your program, it will be replaced with $8500 during execution.

The second line tells the assembler that the assembly process should now proceed from the address specified by ROMSTART. (ORG can be used multiple times in your program if you wish to alter the assembly flow).

2. Read a set of three hexadecimal numbers located in memory addresses $4000, $4001, and  $4002 and store them to memory locations $0800, $0801, and $0802, respectively.

3. Read the three values from the new memory locations and check each one against a threshold value of $55. You can use the EQU directive at the beginning of the program to declare the threshold as follows:

THRESH EQU $55

4. If the value stored in memory location $0800 is higher (unsigned numbers) than the threshold value, compute the sum of the first five natural numbers. Store the number back to the memory location $0800.

5. If the value stored in memory location $0801 is higher (unsigned numbers) than the threshold value, store $00 to the same memory location.

6. If the value stored in memory location $0802 is higher (unsigned numbers) than the threshold value, subtract $10 from the value stored in the memory location $0802 and store the resulting value back to the same memory location.


Related Discussions:- Program for declare the threshold

Sequence of interrupts, As an instance of the normal priority mode, imagine...

As an instance of the normal priority mode, imagine that initially AEOI is equal to 0 and all the ISR and IMR bits are clear. Also consider that, as shown in given figure, requests

Program to find out positive and negative numbers-assembly, Program : W...

Program : Write an assembly program to find out the number of positive numbers and negative numbers from a given series of signed numbers. Solution : Take the i th num

Program to perform a conversion on characters in a text file, Write an asse...

Write an assembly language program to perform a rot13 1 conversion on characters in a text file.  The program should read charatcers from the input file, perform the rot13 convers

Short-type-global-assemblers operator-microprocessor, SHORT  : The  SHO...

SHORT  : The  SHORT operator denoted to the assembler that only one byte is needed to code the displacement for a jump (for example displacement is within -128 to +127 bytes fr

Solotuon, using 8086 assembly language that interchange upper four bits to ...

using 8086 assembly language that interchange upper four bits to lower four bits. assume that data store in byte memory and it written back to same location. and assume the data as

8251 programmable/communication interface-microprocessor, 8251 Programmable...

8251 Programmable/Communication Interface As an instance of a serial interface device let us suppose Intel's 8251 A programmable communication interfaces. The 8251A is diagram

Microprocessor, from pin description it seems that 8086 has 16 address/data...

from pin description it seems that 8086 has 16 address/data lines i.e.AD0_AD15.The physical address is however is larger than 2^16.How this condition can be handled

Write an assembly language program, Your assignment for this project is to ...

Your assignment for this project is to write an assembly language program that checks if the user's input is a valid ISBN number. A sample run of your program might look like:

Embeded programming, i want to develop traffic light system so which kind o...

i want to develop traffic light system so which kind of software is needed to develop this project?

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