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Input a Binary Number BN
Does BN have more than 8 characters or start with a 0 or contain numbers that aren’t 0
or 1
Yes
No
CharAt = Value of the character in position(P)
P = 0
N = Number of characters
in BN
Length = Number of
characters in BN
(CharAt*2 ) = Answer
N
N = N - 1
Sum = Sum + Answer
Sum = 0
P = P + 1
Does P = Length No
Yes
Display (BN+“ to Decimal = ’’+Sum)
Does BN have more than 4 characters?
No
Display a new line
Set the last 4 characters as Input2
Set the remaining first characters as
Input1
(CharAt2*2 ) = Answer2
N2 = N2 - 1
Sum2 = Sum2 + Answer2
P2 = P2 + 1
Does P2 = Length2
N2
CharAt2 = Value of the character in position(P)
P2 = 0
N2 = Number of
characters in Input2
Length2 = Number of
characters in Input2
Sum2 = 0
Comment: If (P)=0 then it will be the
first character of BN
No Yes
Does (Sum2 =10)
Yes
Sum2 = (“A”)
Does (Sum2 =11)
Yes
Sum2 = (“B”)
Does (Sum2 =12)
Yes
Sum2 = (“C”)
Does (Sum2 =13)
Yes
Sum2 = (“D”)
Does (Sum2 =14)
Yes
Sum2 = (“E”)
Does (Sum2 =15)
Yes
Sum2 = (“F”)
No
No
No
No
No
No
Display (BN “to Hexadecimal = “+Sum1+Sum2)
(CharAt1*2 ) = Answer1
N1 = N1 - 1
Sum1 = Sum1 + Answer1
P1 = P1 + 1
Does P1 = Length1
N1
CharAt1 = Value of the character in position(P1)
P1 = 0
N1 = Number of
characters in Input1
Length1 = Number of
characters in Input1
Sum1 = 0
No
Yes
Sum1 = (“A”)
Does (Sum1 =11)
Yes
Sum1 = (“B”)
Does (Sum1 =12)
Yes
Sum1 = (“C”)
Does (Sum1 =13)
Yes
Sum1 = (“D”)
Does (Sum1 =14)
Yes
Sum1 = (“E”)
Does (Sum1 =15)
Yes
Sum1 = (“F”)
No
No
No
No
Yes
Does (Sum1 = 10)
No
Display a new line Yes
CharAt = Value of the character in position(P)
P = 0
N = Number of characters
in BN
Length = Number of
characters in BN
(CharAt*2 ) = Answer
N
N = N - 1
Sum = Sum + Answer
Sum = 0
P = P + 1
Does P = Length No
Does (Sum =10)
Yes
Sum = (“A”)
Does (Sum =11)
Yes
Sum = (“B”)
Does (Sum =12)
Yes
Sum = (“C”)
Does (Sum =13)
Yes
Sum = (“D”)
Does (Sum =14)
Yes
Sum = (“E”)
Does (Sum =15)
Yes
Sum = (“F”)
No
No
No
No
No
No
Display (BN “to Hexadecimal =
“+Sum)
Yes
End End
Assumptions
1) Binary is a base two numeral system, which uses only 0's and 1's.
2) Decimal is a base ten system.
3) Hexadecimal is a base sixteen system, it is made up of sixteen characters 0-9 and A,B,C,D,E,F.
Binary to Decimal and Hexadecimal Pseudo Code
Input: UserInput is an integer
Length is an integer that counts the amount of characters in the input
N is an integer that counts the amount of characters in the input
Let Position be an integer that makes CharAt move onto the next character as it increases in value, 0 being the
first value
If UserInput is not made up of 1’s and 0’s or input has more than 8 characters Then
Output: “Please enter a correct binary number that is 8 characters or less”
Else
For (Position = 0, Position < Length, Position = Position +1)
CharAt is the value of the character in the UserInput at a current (Position)
Let N = N – 1
Let Answer = (CharAt * 2(N))
Let Sum = Sum + Answer
End For
Output: (UserInput)+ “Converted to Decimal = “ +(Sum)
End If
If UserInput is not made up of 1’s and 0’s or input has more than 8 characters Then
Output: “Please enter a correct binary number that is 8 characters or less”
Else If input is greater than 4 characters Then
Output on a new line: UserInput “ Converted to Hexadecimal = ”
Let Input2 be the last 4 characters of the UserInput
Let Input1 be the remaining first characters of the UserInput
Let Position1 be an integer that makes CharAt1 move onto the next character as it increases in value, 0
being the first value
Let Position2 be an integer that makes CharAt2 move onto the next character as it increases in value, 0
being the first value
For (Position1 = 0, Position1 < Length1, Position1 = Position1 + 1)
CharAt1 is the value of the character in the UserInput at a current (Position1)
Let N1 = N1 – 1
Let Answer1 = (CharAt1 * 2(N1)
)
Let Sum1 = Sum1 + Answer1
End For
If (Sum1 = 10)
Output on the same line as the last Output: “A”
Else If (Sum1 = 11)
Output on the same line as the last Output: “B”
Else If (Sum1 = 12)
Output on the same line as the last Output: “C”
Else If (Sum1 = 13)
Output on the same line as the last Output: “D”
Else If (Sum1 = 14)
Output on the same line as the last Output: “E”
Else If (Sum1 = 15)
Output on the same line as the last Output: “F”
Else Output on the same line as the last Output: (Sum1)
End If
For (Position2 = 0, Position2 < Length2, Position2 = Position2 + 1)
CharAt2 is the value of the character in the Input2 at a current (Position2)
Let N2 = N2 – 1
Let Answer2 = (I2 * 2(N2)
)
Let Sum2 = Sum2 + Answer2
End For
If (Sum2 = 10)
Output on the same line as the last Output: “A”
Else If (Sum2 = 11)
Output on the same line as the last Output: “B”
Else If (Sum2 = 12)
Output on the same line as the last Output: “C”
Else If (Sum2 = 13)
Output on the same line as the last Output: “D”
Else If (Sum2 = 14)
Output on the same line as the last Output: “E”
Else If (Sum2 = 15)
Output on the same line as the last Output: “F”
Else Output on the same line as the last Output: (Sum2)
End If
Else
For (Position = 0, Position < Length, Position = Position + 1)
CharAt is the value of the character in the UserInput at a current (Position)
Let N = N – 1
Let Answer = (CharAt * 2(N))
Let Sum = Sum + Answer
End For
If (Sum = 10)
Output on the same line as the last Output: “A”
Else If (Sum = 11)
Output on the same line as the last Output: “B”
Else If (Sum = 12)
Output on the same line as the last Output: “C”
Else If (Sum = 13)
Output on the same line as the last Output: “D”
Else If (Sum = 14)
Output on the same line as the last Output: “E”
Else If (Sum = 15)
Output on the same line as the last Output: “F”
Else Output on the same line as the last Output: (Sum)
End If
End If
End If
CS1809
Assignment 2 – System Design and PrototypeConverter 3
Red Group 04
Stasha Lauria
By Sebastian Waring
The user will enter their binary number here
The user will choose what output they want from a drop down menu
The answer will be displayed next to the drop down menu.
