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Keyboard: what for scancode set 2 is intorduced in the AT???
Posted: Fri Jun 22, 2012 9:56 am
by suslik
I really don't understand what for scancode set 2 is developed. It seems to me that only for translating to the scancode set 1 since old DOS isn't aware of set 2. This illogicality is breaking my mind.
I need some logical explanation.
Re: Keyboard: what for scancode set 2 is intorduced in the A
Posted: Fri Jun 22, 2012 9:58 am
by suslik
Someone told me that set 2 is more ordered than set 1, but I can't see any order in both of them.
Re: Keyboard: what for scancode set 2 is intorduced in the A
Posted: Fri Jun 22, 2012 10:37 am
by Combuster
Set 1 is actually dead simple: Type in "QWERTY" on an US keyboard and you get a nicely sorted set of scan code numbers. In other words: if you hit a key, and then they key to the left or right of it, the difference is one - with some exceptions for the "large" keys. You only don't see the pattern when you type "ABCD" because the keys are physically located all over.
Re: Keyboard: what for scancode set 2 is intorduced in the A
Posted: Fri Jun 22, 2012 10:45 am
by suslik
OK, I have seen order in set 1, but what about set 2? What set 2 was created for?