03781: trivialp: [possible] In-game EPROM tests take a ridiculous amount of time

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03781	Misc.	Trivial	Always	Mar 13, 2010, 02:06	Mar 13, 2010, 15:24

Tester	NekoEd	View Status	Public	Platform	SDLMAME
Assigned To		Resolution	Open	OS	Linux
Status [?]	Confirmed			Driver	jpm/jpmimpct.cpp
Version	0.137	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03781: trivialp: [possible] In-game EPROM tests take a ridiculous amount of time
Description	The EPROM checksum tests in set trivialp take an incredibly long time to complete, well longer than the approximate times listed on the test screens. Compare to scrabble, where the tests complete in reasonable amounts of time rather close to the approximations given. To complete the tests in trivialp in a reasonable, but still rather long amount of time, unthrottling the game is necessary.
Steps To Reproduce	Open the back door ( "9" by default ), then wait until the game displays "BACK DOOR OPEN". From there, hit the "TEST/DEMO" key ( "=" by default ) and you'll hear a sound then go to the test menu. The ROM tests are in the second half of the menus, accessed on this set by touching "MORE TESTS" at the bottom of the list.
Additional Information	I have not tested any of the other sets in the driver, feel free to do so if I don't get around to it.
Github Commit

Flags	Possible
Regression Version
Affected Sets / Systems	trivialp

Attached Files

No.05866 Tafoid Administrator Mar 13, 2010, 02:26	Again, like your other bug, specific steps to reproduce would be helpful.
No.05869 NekoEd Senior Tester Mar 13, 2010, 11:56 edited on: Mar 13, 2010, 11:57	Done. Added to main report.
No.05870 Haze Senior Tester Mar 13, 2010, 14:36	I have my doubts that this is a bug. If anything ROM/RAM tests are usually faster under emulation due to missing watistates / ram access time emulation. I imagine they just have a very inefficient routine to do the tests, and have inaccurate values displayed on the screen. Test Screens are often an unreliable source of information. It could be a bug, but given other games on the hardware work as expected I'd be surprised.
No.05872 Tafoid Administrator Mar 13, 2010, 15:24	Got a chance to try this - starting fresh and doing the test directly it does it in almost exactly 2 minutes (compared to realtime clock). There might be something out of whack or not being processed correctly - doubling the time? The DUART emulation (according to the source), is still in progress. I'll confirm, but set as possible pending some investigation and some input from driver author would be helpful too.