Re: A92: learning assembly - real simple question
[Prev][Next][Index][Thread]
Re: A92: learning assembly - real simple question
see below
In a message dated 98-07-29 16:31:33 EDT, you write:
> In a message dated 7/29/98 2:09:50 PM Eastern Daylight Time,
> ADAMMAN106@aol.com writes:
>
> > byte: 8 bits
> > word: 2 bytes: 16 bits
> > longword: 2 words: 4 bytes: 32 bits
> >
> > byte: 256 range
> > word: 65,536 range
> > longword:4,294,967,296 range
>
> okay then, what is a lower word and an upper word? if l did:
> clr.w D1
> which clears the lower word of D1 then what would D1 look like? how would
l
> clear the upper word?
sorry, but I don't know any 68K. but say D1 (which I'll assume for the
purposes of this is a longword (32 bit) register) was 0xFEDCBA98, then the
result of clr.w D1 would be FEDC0000
I couldn't tell you how to clear the upper word, sorry
~Adamman
Follow-Ups: