Yes, saving and restoring flags is very expensive. I thought about talking about that in the article but figured that was too much of a detour. Darek Mihocka w

Yes, saving and restoring flags is very expensive. I thought about talking about that in the article but figured that was too much of a detour. Darek Mihocka wrote a really interesting article about how to optimize flag calculations in an x86 emulator: http://emulators.com/docs/nx11_flags.htm http://emulators.com/docs/nx11_flags.htm Although looking at your username I suspect you may have read this one before...