00170: shootgal: There are some screens which look fine, others which are offset and overlap and even more that have color issues

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
00170	Graphics	Major	Have not tried	Jan 24, 2008, 19:08	Feb 21, 2009, 22:58

Tester	Tafoid	View Status	Public	Platform
Assigned To	couriersud	Resolution	Open	OS
Status [?]	Assigned			Driver	nintendo/dkong.cpp
Version	0.116u1	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	00170: shootgal: There are some screens which look fine, others which are offset and overlap and even more that have color issues
Description	There are some screens which look fine, others which are offset and overlap and even more that have color issues. Follow-up by couriersud for prom: I currently can not check whether this did work before 0.116, however from the driver: ROM_REGION( 0x0600, REGION_PROMS, 0 ) ROM_LOAD( "sg-01-2e", 0x0000, 0x0200, CRC(34fb23ea) SHA1(6bd6de791c9e0a5f9c833c287663e9755e01c573) ) ROM_LOAD( "sg-01-2f", 0x0100, 0x0200, CRC(c29b880a) SHA1(950017a0298f91e41db9865ed8ce388f4095f6cf) ) ROM_LOAD( "sg-01-2n", 0x0200, 0x0200, CRC(e08ed788) SHA1(6982f6bcc70dbf4c75ff538a5df70da11bc89bb4) ) These are 512x4 proms, but only the first 256 nibbles are used. I suspect other changes to be responsible for the fact that the above "hack", i.e. overlaying the proms, does not work in 116uX. Either there is an issue with the dump or it has been like it in reality and consequently the game needs it own PALETTE_INIT. I would further suggest to add GAME_IMPERFECT_COLORS until we have schematics to verify or somebody with access to the board sends a hires picture of the proms and surrounding area so that the color coding on the resistors can be decoded.
Steps To Reproduce
Additional Information
Github Commit

Flags	Regression
Regression Version	0.116
Affected Sets / Systems	shootgal

Attached Files

No.03773 couriersud Developer Feb 21, 2009, 22:58	Bumping this report in case somebody has the hardware to contribute details.