Thread: Trolls AGA
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Old 29 June 2015, 02:21   #7
Amiga 500 User
Join Date: Jun 2013
Location: EU
Posts: 1,114
Nothing is faked here... The posted pictures are from planet-emu files!
Everyone can test same in WinUAE A1200 cycle-exact configuration AND find out WHO is trolling here.

P.s. Tested with new WinUAE 3.2.0 Beta !

Hmm, it seems there might be a problem with 020 prefetch mode in emulation (not accurate enough)...

because if "cycle-exact" = OFF the glitch still happens, but if also "More compatible" = OFF it works without glitches! (More compatible = prefetch mode)

Thus temporary solution is to use (in this and similar situations) an another configuration (like f.ex. attached one) until 020 cycle-exact becomes more accurate (if ever).

(but is more interesting why in WinUAE cycle-exact/prefetch mode the glitch does not happen with "Trolls (1993)(Flair)(AGA)(Disk 1 of 2)" - the one from planet-emu?!)

Now testing the file "Trolls (1993)(Flair)(AGA)[cr PDX](Disk 1 of 2)" in older WinUAE versions cycle-exact mode:

(Note: If the above file refuse to start upon boot (white screen) than do a hard reset = press keys "LCtrl+LWin+LAlt+RWin"!)

WinUAE 2.1.0 (2010.04.28) = OK
WinUAE 2.2.0 (2010.06.28) = OK
WinUAE 2.3.0 (2010.09.24) = it start to glitch!!!

The winuaechangelog.txt says following:

Final 2.3.0

Beta 14:

- added 68020 CE-mode very approximate 2-stage CPU prefetch pipeline emulation (not that 68020
don't really have 2-stage prefetch but it still will be more compatible without major changes)
Fixes ATR and (partially) Last Ninja 3 CD32 graphics glitches, (missing blitter waits..)
also more compatible with self-modifying code

Last edited by amilo3438; 29 June 2015 at 10:12.
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