x86 oddities

[Ange]

Hello,

I wrote a page about x86/x64 oddities:
let me know if I made any mistake, if you like/hate it, have a suggestion...

Also, Daniel Plohmann released yesterday a nice and simple opcode table that is worth a look IMHO.

[hutch--]

Interesting read, it looks like you have concentrated more on OS instructions than general purpose programming but many will find this a useful and informative page.

[Ange]

Thanks.
I just focused on 'what is weird and could be unexpected' than 'useful', and indeed, general purpose programming instructions have very few weirdness - hopefully.

[hutch--]

The opcode tabe is nicely done as well, very clear and easy to read. Something that is really useful is instruction sequence optimisation, the Intel manuals are good here but no real joy to read for people who are not highly familiar with them. There are others like Agner Fog's optimisation manual but this is an area that many find very useful and it works well in conjunction with benchmarking to determine very fast opcode combinations.

[FORTRANS]

Hi,

   Interesting read.  thank you.

Regards,

Steve N.

[dedndave]

very nice   :U
nice opcode table too

thanks

[Twister]

Pretty good, small write-up.