Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
02704 Speed Minor Always Dec 3, 2008, 04:29 Jun 23, 2017, 02:12
Tester Yonah View Status Public Platform MAME (Official Binary)
Assigned To Resolution Fixed OS Windows XP/Vista 32-bit
Status [?] Resolved Driver neodriv.hxx
Version 0.128 Fixed in Version Build Normal
Summary 02704: savagere: Emulation hiccups on screen transitions.
Description Even with more than adequate CPU speed, screen transitions such as those seen during the game's intro sequence or before and after selecting a character cause Mame to lag. Severe enough to drop the emulation speed to Note: 00075% briefly, cause the frame skip to change, and produces audible hiccups.

Even with -nosleep enabled or the frame skip locked at 5/10, there is no change in this behavior. Attached is a CPU history on my machine, from launching Mame to the end of the title screen.
Steps To Reproduce
Additional Information
Regression Version
Affected Sets / Systems savagere
Attached Files
png file icon MameCPU.png (1,561 bytes) Dec 3, 2008, 04:29
There are no relationsihp linked to this issue.
User avatar
Dec 3, 2008, 18:44
The transitions seem accurate to arcade videos I've seen. The routine to emulation the effect, however, might not be optimized. It's hard to call something like this a 'bug' per se. I'll leave open for more comments. Are there other games which use similar transitions and experience the same issue?
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Senior Tester
Dec 3, 2008, 19:01
it's definitely an abnormal case. I assume it's pushing the video a bit hard, although it surprises me to see slowdown, because the sprite limits are emulated, which should limit how much it can possibly draw anyway.

probably needs some good analysis on where it's spending the time.
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Dec 4, 2008, 03:49
Confirming the behavior, setting to acknowledged for now.
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Jun 23, 2017, 02:12
No hiccups any more.