09321: undrfire and clones: under fire misplace sprites when scrolling

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09321	Graphics	Minor	Always	2 days ago	2 days ago

Tester	yoshi200213	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	Confirmed			Driver	taito/undrfire.cpp
Version	0.283	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09321: undrfire and clones: under fire misplace sprites when scrolling
Description	hello the video game under fire suffers from sprites misplaces when the screen scrolls
Steps To Reproduce	1. start the game 2. screen scrolls 3. see sprites misplaced when screen scrolls
Additional Information	heres a video of the problem ?si=wmfzV_xHeG385YRP
Github Commit

Flags
Regression Version
Affected Sets / Systems	undrfire and clones

Attached Files

No.23878 Robbbert Moderator 2 days ago	Can you give a time reference in that video? I'm not sure what to look for.
No.23880 Kale Developer 2 days ago	It's pretty obvious around the 2:53 mark. Sounds like buffered spriteram DMA copy. The chips it uses is pretty common with other Taito HWs of the era (TC0570SPC + TC0470LIN), those are: - taito/galastrm.cpp - taito/groundfx.cpp - taito/gunbustr.cpp - taito/superchs.cpp taito/pkspirit.cpp also uses TC0470LIN, alone for some reason (maybe because in that HW the DMA is processed by the TMP68303F?)