- #1

Scooouuuty

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## Homework Statement

What is the sum of A and B if they represent signed 16-bit hexadecimal numbers stored in sign-magnitude format?

A = 0D34

B = DD17

## Homework Equations

A + B = C :)

## The Attempt at a Solution

so far the hexadecimal can be converted to binary numbers

A = 0000 1101 0011 0100

B = 1101 1101 0001 0111

since the hexadecimal is stored in sign-magnitude, then the most significant bit, controls the sign either plus or minus (in this case its -)

Therefor i write the following

0000 1101 0011 0100

-0101 1101 0001 0111

--------------------------------

? 0000 0001 1101

I'm stuck afterwards, because where do i borrow or get the last bits?

Because when i use a binary calculator i get the following result

1100 1111 1110 0011 => CFE3

I would like to understand how to get this result, not just use the calculator...