Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
02788 Misc. Major Always Dec 30, 2008, 17:29 Dec 30, 2008, 20:41
Tester Tafoid View Status Public Platform MAME (Self-compiled)
Assigned To smf Resolution Fixed OS Windows 2000
Status [?] Resolved Driver docastle.cpp
Version 0.128u7 Fixed in Version 0.129 Build Normal
Summary 02788: jjack, dorunrun and clones: Immense emulation speed drop
Description While other games in the driver stayed about the same execution speed, jjack and dorunrun now execute over 5 times slower than before.

My run on XP1800:
d:\emulator\arcade\mame>mame128u3 dorunrun -str 10 -nothrottle
Average speed: 265.66% (9 seconds)
d:\emulator\arcade\mame>mame128u4 dorunrun -str 10 -nothrottle
Average speed: 47.15% (9 seconds)
Steps To Reproduce
Additional Information
Regression Version 0.128u4
Affected Sets / Systems jjack, dorunrun and clones
Attached Files
There are no relationship linked to this issue.
User avatar
Senior Tester
Dec 30, 2008, 18:43
edited on: Dec 30, 2008, 18:44
smf i believe said he checked in a fix.

the problem is in the rom loading for CPU3 in said sets, it should be at 0.

(for some reason executing code on unmapped memory / read handlers is very very VERY slow..)