In the bitwise compliment operator there is confusion. Please help if you can.
For the 2’s complement, if we take 8 bits for a binary representation,
in the case of decimal 200, binary is 11001000
2’s complement is also 11001000
In the procedure to calculate mentioned in the link https://www.rit.edu/academicsuccesscenter/sites/rit.edu.academicsuccesscenter/files/documents/math-handouts/DM3_TwosComplement_BP_9_22_14.pdf, it should be 00111000
The confusion must be because of the 8th bit being a 1.
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Decimal 200 can't exist in a 2's complement 8 bit format
Maximum is 127
assembly language is complex. I'll recommend you use an online assembly language calculator to verify / learn / check your work.
there is one rule to find out the 2's complement, you have an OR with one , you can go and check out for Operating System Books you will find that
OR it with one? I thought it was bitwise negating it and then adding 1
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Why do they not mention it int he articles.
the one with bitwise negating the number and adding 1 should work
(~number)+1same goes for converting it back to positive
yes
Regardless of 2's complement, with 8 bits there is a limit to the numbers you can represent. You can't represent 400 for example.
Someone who would be interested in 2's complement in the way described in the article, is supposed to already know enough about binary in computers, and notably to know that there are limits.
It seems nonmandatory to explain that some values rather away from zero, can't be represented with an 8 bit format that handles negatives.
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