how important is the 'cycle exact' option ?

kirk · 19 April 2009, 06:47

hi,
im needing to untick the 'cycle exact' box in the chipset options to run stuff without sound probs (performance related)

so im wondering what issues that may throw up, i am a perfectionist when it comes to running my amiga stuff and it wud be nice to know if i may miss something, however minor, from games performance or effects or accuracy.

maybe its only important for a handfull of games ?, maybe some bits and bobs might be missing from some games ?

TCD · 19 April 2009, 09:29

Have a look at these two threads :
http://eab.abime.net/showthread.php?t=26319
http://eab.abime.net/showthread.php?t=40332

So you should only enable it, if the game/demo won't run or has graphic errors.

kirk · 20 April 2009, 04:35

cheers,

but im still none the wiser as to how much more computer power is needed to run 'cycle exact', cos i wud like to leave it on at all times cos ive noticed in older threads a few games issues with this option off.

OR

is there a full list somewhere of games with known 'cycle exact' issues, i know its a bit lazy of me not to fully experiment for myself, but some issues can crop up late in a game, and some i may not even be aware of even when they are staring me in the face,e,g, missing doors in nebulus2

Toni Wilen · 20 April 2009, 09:01

"It depends". Heavy custom chip activity (blitter/copper/etc) = very high CPU usage in cycle-exact.

Lists are useless because they will get out of date really quickly..

TCD · 20 April 2009, 09:08

Well then just enable cycle exact late in the game

No really, you can change this setting anytime while you are playing and won't break the game. Nevertheless such a list would be quite handy indeed

kirk · 20 April 2009, 12:22

again thanx all,

wow, so cycle exact is 'hot swappable', if you will.

thats a handy thing to know.

by the way, i have a question for cyberdruid re his jamiga frontend,ill post it in the prb.other forum, so if the druid wud be kind enough to have a peek, that wud be gr8

19 April 2009, 06:47	#1
kirk Zone Friend Join Date: Oct 2006 Location: uk Posts: 148	how important is the 'cycle exact' option ? hi, im needing to untick the 'cycle exact' box in the chipset options to run stuff without sound probs (performance related) so im wondering what issues that may throw up, i am a perfectionist when it comes to running my amiga stuff and it wud be nice to know if i may miss something, however minor, from games performance or effects or accuracy. maybe its only important for a handfull of games ?, maybe some bits and bobs might be missing from some games ?

19 April 2009, 09:29	#2
TCD Moderator Join Date: Sep 2006 Location: Germany Age: 35 Posts: 22,480	Have a look at these two threads : http://eab.abime.net/showthread.php?t=26319 http://eab.abime.net/showthread.php?t=40332 So you should only enable it, if the game/demo won't run or has graphic errors. __________________ "I am Polka and that's why I don't like accordions" - CrazyOne, April 2013

20 April 2009, 09:08	#5
TCD Moderator Join Date: Sep 2006 Location: Germany Age: 35 Posts: 22,480	Well then just enable cycle exact late in the game No really, you can change this setting anytime while you are playing and won't break the game. Nevertheless such a list would be quite handy indeed __________________ "I am Polka and that's why I don't like accordions" - CrazyOne, April 2013

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Cycle-Exact and A1200	Another World	New to Emulation or Amiga scene	2	15 December 2008 20:38
Cycle-Exact	tim_calladine	support.WinUAE	1	24 October 2008 15:57
Flashback and the Cycle-exact option	Another World	support.WinUAE	7	07 September 2008 15:56
68020 and cycle-exact	FOL	support.WinUAE	4	23 July 2007 22:10
Cycle exact really slow	FreakyDan	support.WinUAE	0	19 May 2004 22:22

20 April 2009, 04:35	#3
kirk Zone Friend Join Date: Oct 2006 Location: uk Posts: 148	cheers, but im still none the wiser as to how much more computer power is needed to run 'cycle exact', cos i wud like to leave it on at all times cos ive noticed in older threads a few games issues with this option off. OR is there a full list somewhere of games with known 'cycle exact' issues, i know its a bit lazy of me not to fully experiment for myself, but some issues can crop up late in a game, and some i may not even be aware of even when they are staring me in the face,e,g, missing doors in nebulus2

20 April 2009, 09:01	#4
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 38 Posts: 11,945	"It depends". Heavy custom chip activity (blitter/copper/etc) = very high CPU usage in cycle-exact. Lists are useless because they will get out of date really quickly..

20 April 2009, 12:22	#6
kirk Zone Friend Join Date: Oct 2006 Location: uk Posts: 148	again thanx all, wow, so cycle exact is 'hot swappable', if you will. thats a handy thing to know. by the way, i have a question for cyberdruid re his jamiga frontend,ill post it in the prb.other forum, so if the druid wud be kind enough to have a peek, that wud be gr8

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)