Question

program has to be written in X86 processor assy language.

Write a program that find the minimum number of coins that can represent an amount of money under $1.

1. The amount of money is a random number between 0 and 99 (cents).

• The randomRange procedure is used to get a random number.
• Review the sample code in lab4.asm and run it to see how randomRange works. Each time

randomRange is called, it creates a random number between 0 and the limit.

• Once you figure out how randomRange works, remove the sample code but keep the randomize procedure call.
• (main Proc
  call randomize
  mov eax, 10
  call randomRange
  call writeDec
  call crlf
  exit
  main ENDP
  END main)

2. Create a CONSTANT called MAX and set it to 100.

3. Call randomRange to generate a random number between 0 and MAX. Then print the random number with the text string in the format:   Amount = <random number> cents

Make sure to have a newline at the end of the printed string.

4. Calculate the minimum number of quarters, dimes, nickels, pennies that it takes to add up to the random number (the amount of money).

To do this:

• divide the random number by 25, the quotient is the number of quarters
• divide the remainder by 10, the quotient is the number dimes
• divide the remainder by 5, the quotient is the number of quarters
• the remainder is the number of pennies

5. Print the number of each type of coins with a text explanation such as:

      3 quarters, 2 dimes, 0 nickels, 1 pennies

It's okay to print the ending 's' even if the number is 1.

Make sure to have a newline at the end of the printed string.

Sample program output

Amount = 78 cents

3 quarters, 0 dimes, 0 nickels, 3 pennies

Additional requirements (make sure to read all 3 requirements)
1. Except for text string variables, the program should not use any memory variable to store numeric data. Instead, use registers. (Why?)

2. Given the range of data in the program, use the *smallest* data size (not DWORD) in all your calculations. But you will still need to use DWORD for printing data.

3. Determine whether the data is signed or unsigned, and use the appropriate instructions.

Answer 1

function[coins] = change12(money)

%initial amounts of each coin

quarter = 0;

dime = 0;

nickle = 0;

penny = 0;

% money = [quarter dime nickle penny]; money =[0 0 0 0]

while money>0 % while money>=0 makes an infinte loop

if money >= 25

money = money - 25;

quarter = quarter + 1;

elseif money >= 10

money = money - 10;

dime = dime + 1;

elseif money >= 5

money = money - 5;

nickle = nickle + 1;

elseif money >= 1

money = money - 1;

penny = penny +1;

end

end

coins = [quarter dime nickle penny];