Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06875 Original Reference Feature Always Feb 12, 2018, 05:58 Feb 15, 2018, 03:40
Tester Fortuna View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10 (64-bit)
Status [?] Acknowledged Driver fcrash.cpp
Version 0.194 Fixed in Version Build 64-bit
Summary 06875: sf2m1, sf2m9: This is only a reference about this 2 sets in this driver (and maybe other similar clones)
Description I've noticed in this 2 sets in this hacks/bootlegs, probably need be verified with real hardware for more information:

The BGM has an accelerated music (very noticiable) in 5 to 10%
The SFX has a 5 to 10% more slowest effect (too noticiable)


The cpu clocks are very different to actual SF2' bootlegs emulated


This was verified with actual hardware years ago (sorry, but my pcb died about 10 years ago)
Steps To Reproduce For better test, change the next overclocks:

2152 sound to 105%
OKI sound to 95%
Additional Information
Flags Verified with Original
Regression Version
Affected Sets / Systems sf2m1, sf2m9
Attached Files
 
Relationships
There are no relationsihp linked to this issue.
Notes
2
User avatar
No.14740
Tafoid
Administrator
Feb 12, 2018, 13:37
Either one of these could be explained by the very fact that they are bootlegs. Some bootleg boards, I assume, may have used different xtals than the original board.. or even code modified to make their version 'unique'. There isn't a lot of value matching up bootlegs to originals.. there is a reason you can tell they are bootlegs. You are saying, though, you have (had) these exact bootlegs in your personal possession?
User avatar
No.14741
Fortuna
Tester
Feb 12, 2018, 23:30
The latest "literally" drowns in water about 10 years, but is 100% related to these sets
The major detail, is possible "swap" roms of runs various variants in this hardware (sf2m1 and sf2m9 are compatible), is probably can swap roms from "m2 to m10" without problems


PS: need find a set with these sounds again (is a bit hard find here)