MadeEasy WorkBook: Digital Logic - Gray Code

Question

x1= 10101010

x2=11111111

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x1x2------>EX-OR------>GRAY CODE--------->(Output in decimal)????

Comments

if we consider inputs as SIGNED NUMBER then ??

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then also final answer(127) will not change since MSB=0

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exactly ,

(10101010)(11111111)'+(10101010)'(11111111)

(1010101010)(00000000)+(01010101)(11111111)

0+(0101010101)+01010101

ex-or=01010101

now convert it into gray =01111111

(01111111)gray = + (127) base 10

correct ??????

Answer 1

(127)10

Comments

yes i am also getting 127 as answer

Answer 2

x1 xor x2 = 01010101

Gray equivalent of x1 xor x2 is 01111111

convert the gray code (01111111) into decimal code =(127)$_{10}$