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reenigne
MAME Fan
Reged: 04/08/15
Posts: 5
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Re: 8088 mph we break all your emulators
04/09/15 12:04 AM


> Cycle-exact (meaning correct cycle counts for the instructions), or cycle-by-cycle
> (meaning you can interrupt instructions on any cycle)?

I'm thinking the former, though it's whatever is necessary to make the emulator behave the same way as the real hardware. I don't think it should be necessary to interrupt instructions on *any* cycle (definitely not in the IRQ sense), but there may be some instructions that have multiple time-sensitive externally observable effects - e.g. a word access to CGA RAM will have two separate wait states, each synchronizing with the CGA's LCLK and possibly generating a flake of snow.







Entire thread
Subject Posted by Posted on
* 8088 mph we break all your emulators RdW 04/08/15 09:56 AM
. * Re: 8088 mph we break all your emulators Moose  04/09/15 01:26 AM
. * Re: 8088 mph we break all your emulators jonwil  04/08/15 10:44 AM
. * Re: 8088 mph we break all your emulators MooglyGuy  04/08/15 01:02 PM
. * Re: 8088 mph we break all your emulators reenigne  04/08/15 04:05 PM
. * Re: 8088 mph we break all your emulators MooglyGuy  04/09/15 04:32 PM
. * Re: 8088 mph we break all your emulators reenigne  04/09/15 04:59 PM
. * Re: 8088 mph we break all your emulators R. Belmont  04/08/15 10:07 PM
. * Re: 8088 mph we break all your emulators reenigne  04/09/15 12:04 AM
. * Re: 8088 mph we break all your emulators MooglyGuy  04/09/15 07:38 AM
. * Re: 8088 mph we break all your emulators Vas Crabb  04/09/15 11:32 AM
. * Re: 8088 mph we break all your emulators reenigne  04/09/15 10:47 AM
. * Re: 8088 mph we break all your emulators R. Belmont  04/09/15 04:49 PM
. * Re: 8088 mph we break all your emulators reenigne  04/09/15 05:06 PM
. * Re: 8088 mph we break all your emulators Olivier Galibert  04/10/15 08:22 AM

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