Richard Lee wrote: > > I am begining to read bit of low level(assembly) book to just gain some > knoweldge on inner workings of memory. > > My quesiton is, if machine is 32 bit, even if it's accessing string 'A', > it will have to fetch 32 bit (instead of 8 bit that requires to make > that letter A ) ? > > I know this is not a mailing list for this but i figure since it's > closely related to pack, i thought someone would clarify for me. > > I am reading "step by step assembly language"... I am not sure i will > read the whole thing but i just want to get better inner working of > memory as my c book didn't do enough justice.
It is the addressing that is 32-bit, not the data. Assembly languages will generally have instructions like - move byte - move word - move longword - move quadword and so on. The main difference between machine architecture is the order in which bytes appear in multi-byte binary values. Most have the least-significant byte at the lowest address, but Motorola processors and a few others have the order reversed. You will see provision for the different ordering in the formats available in a call to pack. HTH, Rob -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
