[Gordon Freeman]

i know well what Low Level Emulation is,it's a nearly exact reproduction of the console machine,by means of an accurate software virtual machine that takes as input a game rom and performs interpretation of all single machine-code instructions...and so it's at low level

i really can't imagine a different manner for emulating a console machine...i wonder how HLE does it,can someone explain me?

p.s. for instance the UltraHLE (N64) and PSEmu(PSX) were High-Level Emulators,and MesaDX(SMS) was a low-level one...but what's the difference? this is my question

 

[Hannibal]

Basically " UltraHLE ... pioneered a new approach to emulation. Instead of trying to emulate all components of of a game console (such as CPU) as accurately as possible, it tries to recognize what a game is trying to achieve (like playing a sound) and emulates that function.

This is known as High Level Emulation (HLE) and it is what makes UltraHLE and other emulators which have incorperated (some of) this technology so relatively fast. It has a drawback however. If game does things a little differently the emulator won't be able to accuratly guess what the game is doing, which means the game may not play properly."

In summary it does not emulate all the console just what is necessary for the game to run in a pc. If you wanted to know the technical aspects of HLE well that is rather complex and I couldnt really it explained.

source http://www.emulator-zone.com/doc.php/n64/ultrahle.html

 

[Vanit]

Eep, I just realised Gorden Freeman (coughs loudly) has made 2 other duplicates of this thread. I'll quote your answer into the one he actually put in the right section and lets hope someone deletes this one.

 

[GiGaHeRz]

High Level Emulation means emulating system calls or library functions isntead of the actual cpu.

 

[Yeloazndevil]

next time don't make duplicate threads.
I merged your threads together

 

[Gordon Freeman]

ok,got it!

i'd like learning some technical details about it...where can i find them?
perhaps i must contact the authors of various HLE emulators? i think they'll never answer me