CODEWITHSUNDEEP
binary
Sorin Cioban
Sorin Cioban

Reputation: 2225

How to calculate excess-256 and excess-128?

I have the number -37 in decimal. Could you please tell me what its representation is in excess-256 and excess-128?

Its normal binary representation is -100101 and in 8 bits 1010 0101. How exactly do I then get the excess-N representation for it? Am I allowed to have a number larger than 8 bits when writing excess-N? Would I thus have:

01010 0000 (first digit) + 10000 0000 and 00101 + 10000 00000?

Upvotes: 1

Views: 24210

Answers (1)

sam
sam

Reputation: 106

to get it into excess 128, add the true value (-37) to 128. = 91, then get the binary value for 91, 1011011. Same applies for 256 i think.

Upvotes: 9

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