08249: mx10, pv7, pv16, cpc50a, cpc50b, cpc51 [gradius2]: Corrupt Graphics make some games unplayable

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08249	Graphics	Major	Always	Mar 14, 2022, 16:59	Mar 15, 2022, 19:42

Tester	Cow	View Status	Public	Platform	MAME (Official Binary)
Assigned To	Tafoid	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver	msx/msx.cpp
Version	0.241	Fixed in Version	0.242	Build	64-bit
		Fixed in Git Commit	a671ee0	Github Pull Request #

Summary	08249: mx10, pv7, pv16, cpc50a, cpc50b, cpc51 [gradius2]: Corrupt Graphics make some games unplayable
Description	Glitchy or missing graphics makes example game Gradius 2 unplayable. Other games are more than likely unplayable but no one has the time to go through every single MSX1 game.
Steps To Reproduce	Boot up a game.
Additional Information
Github Commit

Flags
Regression Version	0.201
Affected Sets / Systems	mx10, pv7, pv16, cpc50a, cpc50b, cpc51 [gradius2]

Attached Files	Mame 2022.03.14 - 11.57.07.01.mp4 (793,369 bytes) Mar 14, 2022, 16:59 Uploaded by Cow Example

No.19905 Tafoid Administrator Mar 14, 2022, 18:01	Please state exactly what software list entry you are using and the exact command-line you are using to start it. I'm sure there are some games which require machines with additional ram esp if additional sound devices may be used (moonsound, etc).
No.19906 Cow Tester Mar 14, 2022, 18:11	From command line: mame pv7 gradius2
No.19907 Cow Tester Mar 14, 2022, 18:11	Software list/item msx1_cart:gradius2
No.19908 Tafoid Administrator Mar 14, 2022, 18:42 edited on: Mar 14, 2022, 18:42	It appears to be a regression at first glance, but I'll do some research. You can use an msx2 machine (example: canonv30) and it appears to run correctly.
No.19909 Tafoid Administrator Mar 14, 2022, 19:07	Have determined a version and even a day of regression - pointing to v99xx video configuration changes. August 21, 2018 https://github.com/mamedev/mame/commit/71da8e2ae2521d4c895520c85e45e3ccfdb56e30
No.19910 Tafoid Administrator Mar 15, 2022, 01:46	Fairly certain it can be fixed. I'll look into it tomorrow.
No.19915 Tafoid Administrator Mar 15, 2022, 19:42	I also used "zanac2" as a test cartridge to check if the machine's VDP was valid or not and fixed them per results.