Write an HLA Assembly language program that calculates the cost of an airline ticket. The ticket will be based on different choices made by the traveler as represented by a bit field as shown below:

Flight Packed Bit Field

Since just $8$ bits are being entered, your program should expect to read $2$ hexidecimal digits.

The two low$-$order bits $($shown in white$)$ represent the number of checked bags. Each checked bag add $$25$ to the cost of the airline ticket.

The next four bits $($shown in blue$)$ represents the flight length, in $100$ mile increments. A flight of $100$ miles or less would be represented by $0001.$ A flight of up to $200$ miles in length would be represented by $0010.$ A flight up to $300$ miles in length would be represented by $0011,$ and so on$.$ Each $100$ miles flown adds $$50$ to the cost of the airline ticket. For the fare to be valid, the smallest allowed value for this field is $0001.$ The biggest allowed value for this field would be $1111,$ meaning $1500$ miles in length.

The next bit $($shown in yellow$)$ represents whether a meal is purchased on board. A meal adds $$10$ to the cost of the airline ticket.

The high$-$order bit $($shown in orange$)$ represents whether a first$-$class fare is being purchased. First$-$class tickets cost twice as much an economy ticket.

Below are some sample program dialogues that demonstrate these ideas.

$($Hint: Do this in small steps, bit$-$by$-$bit. There's alot to it$...)$

$($Further Hint: The most important part of this assignment is to worked with the packed data field entered by the user to extract the sub$-$parts out of it$.$ The overlapping design of the Intel registers helps you parse this kind of data field and you can shift the bits around to get the right part into BH or BL$,$ for example... $)$

$($Further Hint: You can read hex numbers by reading directly into a register. Just don't use EAX since stdin.get uses that one when it executes.$)$

$($Final Hint: Since we haven't learned how to do multiplication yet, although it's kinda painful, I was expecting that you would perform the multiplication by a looping set of addition instructions$)$

Feed me$(2$ hex digits$)$: $00$

Miles flown cannot be zero!

Feed me$(2$ hex digits$)$: $01$

Miles flown cannot be zero!

Feed me$(2$ hex digits$)$: $04$

Economy ticket

No meal

No bags

$100$ miles flown

Total Fees $=$ $ $50$

Feed me$(2$ hex digits$)$: $84$

First class ticket

No meal

No bags

$100$ miles flown

Total Fees $=$ $ $100$

Feed me$(2$ hex digits$)$: $7$F

Economy ticket

Meal purchased

$3$ bags

$1500$ miles flown

Total Fees $=$ $ $835$

Feed me$(2$ hex digits$)$: FF

First class ticket

Meal purchased

$3$ bags

$1500$ miles flown

Total Fees $=$ $ $1670$