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Altera_Forum
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13 years ago

mod - remainder confiusion

Dear all, Anyone can explain what mean by this line of code: ad<=(-5) mod 8; I know the "mod" is the remainder. But, why need negative? What the different with ad<=5 mod 8? Th...
Altera_Forum's avatar
Altera_Forum
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13 years ago

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Do some simple maths...

If you divide 13 by 8 you get 1 remander 5.

If you divide 13-8 (= 5) by 8 you get 0 remainder 5.

If you divide 13-8*2 (= -3) by 8 you get -1 remainder 5 (or 0 remainder -3).

If you divide 13-8*3 (= -11) by 8 you get -2 remainder 5 (or -1 remainder -3).

Which of the quotient and remainder is negative varies according to the definition used by the language.

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Hai all,

Actually I try to understand this code example. I used this code as my reference to rewrite my own code later. One more thing, I try to view the state machine diagram using Quartus, but it said that "no state machine". I search from this forum, it said that I need to add reset case to create the state machine automatically. How to add the reset case? Thanks for quick reply