Re: A89: roxd
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Re: A89: roxd
great! that's what I was hoping :-) you can only rotate a word though?
well, it's still very nice
>
>roxl and roxr copys the xextend bit into zero.
>and it is what you should use to scroll.
>the best way to use it should be a roxr.w (a0)+ (you can only work on words
>directly in memory)
>(and ofcourse roxl.w -(a0) to scroll in the other direction)
>
>//Olle
>
>Dux Gregis wrote:
>>
>> how do roxl and roxr work?
>>
>> what does, say, roxl copy into bit zero? the highest bit or the previous
>> extend bit?
>>
>> if it doesn't copy the extend bit, but instead copies the highest bit
into
>> the lowest bit like rol, what would be a fast way to scroll the whole
screen
>> right or left?
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