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In this project, we are going to design a simple calculator in each of us to be synthesized into a

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combination of.

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The calculator can receive two signed five with binary inputs and perform eight operations on them,

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including addition, subtraction, logical, bitwise and logical, bitwise or logical bitwise Annand

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logical, bitwise or arithmetic, negation and logical bitwise inverse.

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It shows the result on four seven segments using one of the two decimal and hex formats, for example.

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Let's assume the two input numbers are one one zero one zero and one zero zero one zero, which represent

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minus six and minus 14 respectively.

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If the addition operator and output, the small format are selected, then the seven segments should

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show minus 20.

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Uses light switches on the basis report twins are two signed by binary numbers, the hexadecimal output

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format selection and entered operation code.

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The first five is light switches represent the first binary number.

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The second five is light switches represent the second line error number.

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The 12th sleights, which determines the output format hexadecimal zero denotes decimal and one denotes

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hex.

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The last four slice switches, they know the code of the selected operation as shown in this table,

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the four seven segments displayed the result value.

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However, as a combination of circuit cannot turn on all the seven segments simultaneously and a sequential

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circuit is required for this purpose.

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We use the pushbuttons to select a single display at time.

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Therefore, the left push-Button enables the Fastjet the down, push-Button enables the second digit,

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the push-button enables the third digit.

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Finally, the right push-Button enables the sine digit.

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In the next lecture, I will explain the structure of the actualised code that implements this simple

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calculator.