modify the extended_add procedure in section 7.5.2 to add two 256-bit (32-byte) integers. data vall BYTE '8' val2 BYTE '9' . code mov ah,0 mov al, vall sub al, val2 = ; AX ; AX aas ; AX 0038h = OFFh FFO9h save the Carry flag FF39h restore the Carry flag i pushf or al,30h popf ; AX = i

Answers

Answer 1

To modify the extended_add procedure to add two 256-bit integers, you need to change the loop counter to 32, since we will process the integers 8 bytes at a time (32 pairs of 8 bytes). You also need to define two arrays of 32 bytes each to hold the two 256-bit integers, and a third array of 32 bytes to hold the result.

How can you modify the extended_add procedure to add two 256-bit integers in Assembly language?

To modify the extended_add procedure in section 7.5.2 to add two 256-bit (32-byte) integers, you can use the following code:

.data
val1 QWORD 0x1234567890ABCDEF
val2 QWORD 0x9876543210FEDCBA
result QWORD ?

.code
extended_add PROC
pushf ; Save the flags
xor rax, rax ; Clear the accumulator
mov rcx, 4 ; Loop counter
loop_start:
mov rdx, 0 ; Clear the carry flag
mov r8, [val1 + rcx*8] ; Load 8 bytes from val1
adc rax, r8 ; Add 8 bytes to the accumulator
mov r8, [val2 + rcx*8] ; Load 8 bytes from val2
adc rax, r8 ; Add 8 bytes to the accumulator
mov [result + rcx*8], rax ; Store 8 bytes in result
sub rcx, 1 ; Decrement loop counter
jnz loop_start ; Loop until all 32 bytes are processed
popf ; Restore the flags
ret
extended_add ENDP

In this code, we define two 64-bit (8-byte) integers val1 and val2, and a 64-bit integer result to hold the sum of the two integers. The extended_add procedure takes no arguments and returns no value, but modifies the contents of result.

The procedure starts by pushing the flags onto the stack to save their values. It then clears the accumulator (rax) to prepare for the addition. The loop counter (rcx) is set to 4, since we will process the integers 8 bytes at a time (4 pairs of 8 bytes).

Inside the loop, we load 8 bytes from val1 and add them to the accumulator using the adc (add with carry) instruction. We then load 8 bytes from val2 and add them to the accumulator again using adc. The carry flag is cleared before each addition to ensure that any carry from the previous addition is accounted for.

Finally, we store the 8-byte sum in result and decrement the loop counter. We continue looping until all 32 bytes have been processed. After the loop, we restore the flags by popping them from the stack, and return from the procedure.

To test the procedure, you can call it from your main program like this:

mov ecx, LENGTHOF result ; Set the loop counter to 8
lea rsi, result ; Load the address of result
call extended_add ; Call the extended_add procedure
; Result is now the sum of val1 and val2

This will call the extended_add procedure to add val1 and val2, and store the result in the result variable. You can then use the result variable as needed in your program.

Learn more about  extended_add procedure

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Related Questions

HELLLP PLEASEEEEEEEEE

Answers

Answer:

torque

a twisting or turning force.

Hope it will help :)

Which letter shows the ball when it has the maximum kinetic energy

Answers

Answer:

D.

Explanation:

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules. M represents mass measured in kilograms. V represents velocity measured in metres per seconds square.

Generally, when the final velocity at which a physical object moves is equal to zero (0), then it possess maximum kinetic energy.

Hence, the letter which shows the ball when it has the maximum kinetic energy in the graph attached is D.

Larry has created a web page using HTML 4.01. He hasn’t included the declaration in the file. When he opens the page in a browser, Larry sees a page load error. Why does Larry need to use the declaration in an HTML file?
A.
to define the HTML version in which the page is written
B.
to define the web language in which the page is written
C.
to tell the browser what the content is
D.
to check whether the code is error-free

Answers

Answer:

To define the html version in which the page is written.

Can you all help me with this?

Answers

Answer:

(1)mobile smart phone.

(2)server computer.

(3)desktop computer

(4)laptop computer

(5)all in one computer

Which language gives instructions on how text should appear on a web page?
__Blank__ language gives instruction on how text should appear on a web page.

Answers

Answer:

HTML

HTML stands for HyperText Markup Language, so HTML gives you a way to “mark up” your text with tags that tell the browser how your text is structured.

Answer:

Markup language

Explanation:

Sam works in a real estate office. An offer comes in on a house but the homeowners are on vacation. He needs the homeowners to sign a document to accept the offer. What should Sam do?

Answers

Answer:

Sam should send a digital document and request a signature. The could be fax or even an image printed out, if neither is possible get in contact with eh owner and his lawyer for more help.

Explanation:

Answer:

Sam should call the homeowners’ cell phone to inform them of the offer and fax a copy of the document using the office fax machine. The homeowner should sign the document and fax it back. Sam may also conduct an Internet search to find the fax machine closest to the client.

Explanation:

got it right on edge

Pls help I’m not trying to fail this

Answers

Answer:

B makes the most sense to me

Explanation:

What was the biggest challenge you faced in getting to where you are today and how did you overcome it? Peer counseling

Answers

The biggest challenge I still am faced with today is loosing weight, it can be different for everyone but that is mine. I overcomed it by eating a lot better and not so much junk food.

Which item would not generate a desktop alert by default in Outlook 2016?

new contact created
meeting request received
email received
task assignment received
i couldn't find this awnser and my teacher is extending our test period for another 20 minutes. please help

Answers

Answer:

New contact created does not generate a desktop alert by default.

Explanation:

edg.2021

Answer:

A

Explanation:

1. Visual design and font/background are both essential and considered vital for the success of a web. If you are the developer, which of the two will you be focused on?

Answers

Answer:

As a developer, I'd be focused on the two starting with the front end.

Explanation:

A front-end developer simply is a user-end or client-side developer. A front-end person in web design is responsible for how a website looks and feels like, essentially, the websites' users first impression.

This is a huge task and can be very daunting even for the best developers. Whilst the back-end or the engine of a website is critical and indispensable, it is important for a developer to master the principles of front-end development first as that gives him a better perspective as to how they can better create and configure a matching or suitable back end.

Most if not all are designed to achieve a particular purpose e.g.

Increase salescommunicate informationtrainingelicit information etc

The ease with which the user is able to interact with the website will determine the extent to which the purpose of the website is achieved.

Some of the qualities of a great user interface the front end developer must keep in mind are:

Clarity Conciseness Familiarity  EfficiencyConsistency Attractiveness

Back-end has to do with the part of the website called the server.

In addition to the server, there are two other critical components of the back-end of the website:

Application and Database.

Together, these three contribute to ensuring that you have a functional website. The server, application and database, all control what happens on the front end and results in what the user will see via the browser.

There are many high-functioning websites today that have very poor interfaces.  A poor interface is a guarantee that people will spend less time on the website.

Conclusively, both ends are indispensable, as with most things, however, one should seek to understand how the user thinks and feels in relation to how they like to use a website before doing into the back-end to make that possible.

Cheers

There are different kinds of designs. As a developer, my Visual design would focus more on background.

Visual design is known to be a kind of design that strike equality between unity and variety. The use of design elements to work on the background and when done properly, gives users a nice experience.

Visual design is one that act to improve the design's or the product's aesthetic feeling.

Learn more about Visual design from

https://brainly.com/question/1332211

In a series circuit, resistance is?

Answers

Answer:

In a series circuit, the total resistance is equal to the sum of all resistances.

Explanation:

The same current passes through each resistor, so each resistor does its job as you would expect.

For Example:

a series circuit has a 2 Ω (ohm) resistor, a 5 Ω resistor, and a 7 Ω resistor. The total resistance of the circuit is 2 + 5 + 7 = 14 Ω.

the computer stores the data and information on the ______​

Answers

Answer:

Primary memory, it might be cpu but i think its primary memory

Explanation:

characteristics of the printer​

Answers

Important printer characteristics include resolution, speed, color, and cache memory.

Which actions changed the look of the following word?

A. The Spelling & Grammar function marked the word as an error.
B. The style of the word was set to underline.
C. The user changed the font size.
D. The word was set in italics, and then underlined.

Answers

Answer:

D

Explanation:

The actions applied to change the look of the word are:

1. It was set to italics. This can be done easily by highlighting the word => press Ctrl + I together on the keyboard.

2. Next is to set to underline. While still highlighted => press Ctrl + U together in the keyboard.

Answer:

D

Explanation:

a collection of logically related instructions is called _______​

Answers

Answer:

Data Base from what I know

Explanation:

A loan of $12000 was borrowed from the bank at 14% per annum calculate the interest on the loan at the end of the first year ?​

Answers

Answer:

lmasjsjsjssjjssjjssjsjjsksakkalaaooaa

Loan borrowed = $12,000

Percentage of interest on the loan per annum = 14%

We know that :

[tex]\color{hotpink}\tt \: Simple \: interest = \color{plum}\frac{principal \times rate \times time}{100} [/tex]

In this case :

principal = $12000rate = 14%time = 1 year

Simple interest at the end of the first year :

[tex] = \tt \frac{12000 \times 14 \times 1}{100} [/tex]

[tex] = \tt \frac{168000}{100} [/tex]

[tex]\color{plum}\tt = \$1680[/tex]

Thus, interest = $1680

Therefore, total interest on the loan at the end of one year = $1680

Describe some common types of charts.​

Answers

Bar chart.
Pie chart.
Line chart.

Answer:

The four most common are probably line graphs, bar graphs and histograms, pie charts, and Cartesian graphs. They are generally used for, and are best for, quite different things.

Explanation:

Line chart- A graph with points connected by lines to show how something changes in value: • as time goes by, • or as something else changes.

Example: how you are improving at a quiz each day.

Bar chart- A graph drawn using rectangular bars to show how large each value is. The bars can be horizontal or vertical. It is a really good way to show relative sizes. We can use bar graphs to show the relative sizes of many things, such as what type of car people have, how many customers a shop has on different days and so on.

Histogram- a graphical display of data using bars of different heights. It is similar to a Bar Chart, but a histogram groups numbers into ranges . The height of each bar shows how many fall into each range.

Pie chart- a special chart that uses "pie slices" to show relative sizes of data. It is a really good way to show relative sizes.

Cartesian chart- This is a type of chart that uses coordinates to pinpoint where something is on a map or graph. Using Cartesian Coordinates we mark a point on a graph by how far along and how far up it is.

3 uses for a GPS system other than for a satellite navigation system

Answers

Answer:

Location – determining a position. Navigation getting from one location to another. Tracking – monitoring object or a personal movement. Mapping – creating maps of the world.

Mediante el contacto de las ruedas dentadas un engranaje transmite un movimiento a. Rectilíneo b. Circular c. Ondulatorio

Answers

Answer:

La respuesta es b: circular

Explanation:

Las ruedas dentadas tienen dientes que rodean a todo el perímetro de la rueda , esto logra que las ruedas dentadas entren en contacto entre ellas sin causar fricción,el movimiento que realizan es circular.

Which activity is performed during high-level design in the V-model?
A. gathering user requirements
B. understanding system design
C. understanding component interaction
D. evaluate individual components
E. design acceptance test cases

Answers

Answer:

B or E don't sure which one

What is Binary



A part of a computer


A base 2 number system


A computer program


Software for a computer

Answers

The answer to your question would be B. A base 2 number system.

Do all careers or professions need computer science?

Answers

Answer:

no computer science is only needed for coders and engineers not for all is needed ok or one thing is that you study for your knowledge ok

Explanation:

hope it helps you

please mark me as brainlist

PLS HELP
1. You can tape a movie off Showtime.
a. if you use it for educational purposes.
b. only if you have written permission from the company.
c. so that it may be archived.
d. to use as an entertainment for your great students.

2. You may photocopy parts of the encyclopedia:
a. if it is for your use only.
b. only if your copy is of the subject you are researching.
c. if you don’t have a copy at home.
d. to pass out to all your students.

3. You may record a local symphony concert to share with your class:
a. as long as you don’t sell tickets to hear it.
b. as long as you use it at a listening center in your room.
c. if you relate it to your lessons.
d. you may not record a public performance of any kind.

4. You may make a copy of a computer program:
a. if you are giving it to a friend.
b. as long as you purchased it and are using it for a back-up copy.
c. as long as you downloaded it from the internet.
d. you may not copy software.

5. You may use any image from the Internet or clip art software:
a. if you know that no one will know.
b. if you save it as an “image” and give it a new name.
c. as long as it is confirmed to be “royalty free”.
d. you cannot copy any photograph, artwork, or image without permission.

Answers

Answer:

1. so that it may be archived

2.to pass out to all your students

3.if you relate it to your lessons

4.as long as you've purchased it and you are using it for back up copy

5.C

Please help!!
The following are two different images that are encoded using the same algorithm. The images are each in a 5 by 5 grid of pixels where each pixel is black, white, red, green or blue.

The image on the left gets encoded and compressed down to 21 digits while the image on the right gets compressed down to 25 digits. Although the same algorithm was used to encode and compress these images, why are the end results a different length?


The algorithm was probably used improperly in the image on the right, causing it to be a longer length than it should have been.

Because this is a lossy compression, sometimes information is lost during the compression.

The amount of size reduction from compression depends on the amount of redundancy in the original data.

The image on the right uses more colored squares and therefore requires more digits to represent the pixels.

Answers

Answer: The amount of size reduction from compression depends on the amount of redundancy in the original data.

The reason why the end results have a different length is because: C. The amount of size reduction from compression depends on the amount of redundancy in the original data.

What is a lossy compression?

A lossy compression is also referred to as irreversible compression and it can be defined as a type of data encoding (data compression algorithm) in which the data in a file such as an image, is removed by using inexact approximations, in order to reduce the amount of size of a file after decompression.

Since the same algorithm was used to encode and compress these images, the reason why the resulting images have a different length is simply because the amount of size reduction from compression depends on the amount of redundancy in the original image file (data).

Read more on lossy compression here: https://brainly.com/question/17542014


1. Light of wavelength 900x10-9 m is emitted by a source. What is its frequency?​

Answers

therefore the frequency = 6×10^14

The frequency of the light is "[tex]6\times 10^{14}[/tex]".

Given values:

Wavelength,

[tex]\lambda = 900\times 10^{-9} \ m[/tex]

As we know the formula,

→ [tex]Frequency = \frac{C}{\lambda}[/tex]

By substituting the values, we get

→                   [tex]= \frac{3\times 10^8}{900\times 10^{-9}}[/tex]

→                   [tex]= \frac{10^8}{300\times 10^{-9}}[/tex]

→                   [tex]= 6\times 10^{14}[/tex]

Thus the above response is correct.  

Learn more about frequency here:

https://brainly.com/question/14459326

create html code showing heading tags​

Answers

Answer:

Assuming you mean the HTML5 head tag, then this may work for you:

<!DOCTYPE HTML>

<html lang="en">

<head>

<title>My Very Awesome Website</title>

<link href="./css/main.css" rel="stylesheet"  />

<meta name="viewport" content="width=device-width, initial-scale=1" />

</head>

<body>

<h1>Hey look</h1>

<p>This is my awesome website!</p>

<h3>Note</h3>

<p>This website is supposed to be 100% awesome!</p>

</body>

</html>

Para que se utilizan las siguientes plataformas: Matlab, Labview, VisualBasic, Mplab, Micropic, PicCompiller

Answers

Answer:

MATLAB (abreviatura de MATrix LABoratory, «laboratorio de matrices») es un sistema de cómputo numérico que ofrece un entorno de desarrollo integrado (IDE) con un lenguaje de programación propio (lenguaje M). Está disponible para las plataformas Unix, Windows, macOS y GNU/Linux.

Entre sus prestaciones básicas se hallan la manipulación de matrices, la representación de datos y funciones, la implementación de algoritmos, la creación de interfaces de usuario (GUI) y la comunicación con programas en otros lenguajes y con otros dispositivos hardware.

LABVIEW (acrónimo de Laboratory Virtual Instrument Engineering Workbench) es una plataforma y entorno de desarrollo para diseñar sistemas, con un lenguaje de programación visual gráfico pensado para sistemas hardware y software de pruebas, control y diseño, simulado o real y embebido.

Visual Basic (VB) es un lenguaje de programación dirigido por eventos, desarrollado por Alan Cooper para Microsoft. Este lenguaje de programación es un dialecto de BASIC, con importantes agregados. Su primera versión fue presentada en 1991, con la intención de simplificar la programación utilizando un ambiente de desarrollo.

MPLAB es un editor IDE gratuito, destinado a productos de la marca Microchip. Este editor es modular, permite seleccionar los distintos microcontroladores soportados, además de permitir la grabación de estos circuitos integrados directamente al programador.

MICROPICUn PIC es un circuito integrado programable (Programmable Integrated Circuited), el cual contiene todos los componentes para poder realizar y controlar una tarea, por lo que se denomina como un microcontrolador. Los PIC son una familia de microcontroladores tipo RISC fabricados por Microchip Technology Inc. y derivados del PIC1650, originalmente desarrollado por la división de microelectrónica de General Instrument.

PICCOMPILER

El Portable C Compiler o Compilador de C Portable (también conocido como pcc o, algunas veces, como pccm - máquina de compilador de C portable) fue uno de los primeros compiladores para el lenguaje de programación C escrito por Stephen C. Johnson de los Laboratorios Bell a mediados de los 70, basado, en parte, en las ideas de un trabajo previo de Alan Snyder en 1973.

Explanation:

MATLAB (abreviatura de MATrix LABoratory, «laboratorio de matrices») es un sistema de cómputo numérico que ofrece un entorno de desarrollo integrado (IDE) con un lenguaje de programación propio (lenguaje M). Está disponible para las plataformas Unix, Windows, macOS y GNU/Linux.

Entre sus prestaciones básicas se hallan la manipulación de matrices, la representación de datos y funciones, la implementación de algoritmos, la creación de interfaces de usuario (GUI) y la comunicación con programas en otros lenguajes y con otros dispositivos hardware.

LABVIEW (acrónimo de Laboratory Virtual Instrument Engineering Workbench) es una plataforma y entorno de desarrollo para diseñar sistemas, con un lenguaje de programación visual gráfico pensado para sistemas hardware y software de pruebas, control y diseño, simulado o real y embebido.

Visual Basic (VB) es un lenguaje de programación dirigido por eventos, desarrollado por Alan Cooper para Microsoft. Este lenguaje de programación es un dialecto de BASIC, con importantes agregados. Su primera versión fue presentada en 1991, con la intención de simplificar la programación utilizando un ambiente de desarrollo.

MPLAB es un editor IDE gratuito, destinado a productos de la marca Microchip. Este editor es modular, permite seleccionar los distintos microcontroladores soportados, además de permitir la grabación de estos circuitos integrados directamente al programador.

MICROPICUn PIC es un circuito integrado programable (Programmable Integrated Circuited), el cual contiene todos los componentes para poder realizar y controlar una tarea, por lo que se denomina como un microcontrolador. Los PIC son una familia de microcontroladores tipo RISC fabricados por Microchip Technology Inc. y derivados del PIC1650, originalmente desarrollado por la división de microelectrónica de General Instrument.

PICCOMPILER

El Portable C Compiler o Compilador de C Portable (también conocido como pcc o, algunas veces, como pccm - máquina de compilador de C portable) fue uno de los primeros compiladores para el lenguaje de programación C escrito por Stephen C. Johnson de los Laboratorios Bell a mediados de los 70, basado, en parte, en las ideas de un trabajo previo de Alan Snyder en 1973.

A type of topology in which all the systems a connected a main cable ​

Answers

Answer:

Bus topology uses one main cable to which all nodes are directly connected. The main cable acts as a backbone for the network. One of the computers in the network typically acts as the computer server. The first advantage of bus topology is that it is easy to connect a computer or peripheral device.

What's wrong with these codes in code HS Karel challenges(7.1.2. Racing Karel) Codes: //Below is the program that have Karel move around the race track 8 times, and end in his starting location. Everytime Karel hits a corner, he will put a ball down. At the end there should be 8 balls on each corner. function start(){ for(var i = 0; i < 5; i++){ ballSet(); wallRun(); turnLeft(); } function wallRun(){ while(frontIsClear()){ move(); } } function ballSet(){ putBall(); } }

Answers

Answer:

The program only runs 5 five since the for loop statement is limited to loop only five times.

Explanation:

In programming, a for-loop statement is used to repeat a collection of events a definite number of times. The number of loops is specified and compared with a variable to execute a block of code.

The for-loop statement in the code above declares and initializes a variable "i" to zero, runs the block of code, and increments by one if it is less than 5.

To make it run eight times, the value five should be changed to 8 instead.

Answer: you have to change the 5 to 8 since its telling you to do it 8 times

Explanation: for(var i = 0; i < 5; i++) should be for(var i = 0; i < 8; i++)

Why is computer literacy is important.

Answers

Cause it’s a important  skill process and they want there employees to have basic skill on pc or computers. They come depending on computers and it’s most likely to be more successful on education with the use of computers

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Use mathematical induction to prove: nFor all integers n > 1, (5i 4) = n(5n - 3)/2i=1 explain a good way to combine people and technology to support collaborative supply chain operations Under the equity method, the investor records a credit to the investment account if a net ______ Carl has an investment worth $129,565.20. The investment will make a special payment of X to Carl in 4 months from today and the investment also will make regular, fixed monthly payments of $1,490.00 to Carl forever. The expected return for the investment is 1.38 percent per month and the first regular, fixed monthly payment of $1,490.00 will be made to Carl in one month from today. What is X, the amount of the special payment that will be made to Carl in 4 months? research on decision making and household labor in married couple families reveals that what is the ph of a 3.1 m solution of the weak acid hclo2, with a ka of 1.10102? the equilibrium expression is: hclo2(aq) h2o(l)h3o (aq) clo2(aq) round your answer to two decimal places. Please help its due on May 7th and the code has to be in python. How may 12-digit binary sequences are there in which no two Os occur consecutively? 610 377 22/2 22 A frameshift mutation occurs in a transposase gene. Select all that occurs-Only Class 2 transpositions can happen-A non-functional transposase protein exists-Only Class 1 transpositions can happen-The transposon is stuck and cannot be cut from the DNA strands T/F : a table with a valid primary key in unnormalized form unf has no repeating groups the testicular cells that construct the blood-testis barrier are the _______. The corrective lenses of a person suffering from which vision ailment could be used to start a fire?a. Myopiab. hyperopiac. astigmatismd. cataractse. no eyeglass lenses can be used to make a fire. In a Cournot market structure with two firms, firm A's reaction function gives: optimal quantity for A as a function of price for A and price for B. optimal price for A as a function of price for B. optimal quantity for A as a function of price for B. optimal quantity for A as a function of quantity for B. *option 1 is incorrect Based on the context,what meaning is the vampire conveying by using a pun The template DNA strand reads GCATACGTAGCTGAGTCCCGAACTC. Nucleotides numbered 10-18 represent an intron. This sequence is also provided on the protein synthesis worksheet page. Using a codon table, choose the abbreviations for amino acids (in sequence) that would be present in the polypeptide chain Select one: a MET-HIS-ALA b. ALA-GLU-SER CARG-MET-HIS-ALA d. ALA-TRY-VAL-SER-ARG-THR e. MET-HIS-ARG-LEU-ARG-ALA Peggy worked very hard as a volunteer research assistant on Dr. Morales' research project because she wanted to get her name on the publication. Peggy's helping behavior best illustrates: Select one: a altruism b. self-serving biasc. prosocial behavior d obedience Detemine the residual molar entropies for molecular crystals of 35 CI37 Cl Express your answer in joules per mole kelvin.S35CL37CL = ___ J.mol^-1.K angela plans to file for bankruptcy under chapter 7 because she literally has no assets, lost her job due, and has no way to pay any of her debts. one month prior to filing, angela gives jose's filling station $700 to pay off her gasoline bill. jose has been so kind as to let her charge the gas she needed for her car over the past year because of her dire straits. the bankruptcy trustee appointed to the case: group of answer choices cannot cancel the payment to jose because jose is not an insider. cannot cancel the payment to jose because it is payment for an existing debt. can cancel the payment to jose as a fraudulent transfer. can cancel the payment to jose, and recover the $700 from him as a voidable preference. 4Select the correct answer.Which of the following statements describes the command economy of the Soviet Union?OA.The government allowed private businesses to produce goods and services demanded by the market.The government decided what goods and services would be produced an hupplied to the market.The government allowed workers to own the means of production.O C.O D. The government ensured high wages for workers.B.ResetNext the transmission of domestic violence across generations is called the