| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 03823 | Color/Palette | Minor | Always | May 1, 2010, 08:03 | May 9, 2010, 19:18 |
| Tester | Justin Kerk | View Status | Public | Platform | MAME (Self-compiled) |
| Assigned To | AWJ | Resolution | Fixed | OS | Windows XP (64-bit) |
| Status [?] | Resolved | Driver | |||
| Version | 0.137u3 | Fixed in Version | 0.138 | Build | 64-bit |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary | 03823: pc_miket: Bad colours | ||||
| Description |
Colours are now bad in this game, black is displaying as bright green. Menu seems to be OK, just the game screen. Other PlayChoice-10 titles like pc_smb3 and pc_gntlt look OK. Presumably this is a regression from the NES palette updates in 0.137u3 but I have not verified this. |
||||
| Steps To Reproduce | |||||
| Additional Information | Self-compiled C2D-optimized 64-bit build using official tools. | ||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | 0.137u3 | ||||
| Affected Sets / Systems | pc_miket | ||||
|
Attached Files
|
 0005.png (9,090 bytes) May 1, 2010, 08:03 | ||||
 No.06028
AWJ Developer
May 2, 2010, 03:13
|
I've just sent in a patch to fix this bug. When I made color emphasis on the NES PPU actually do something in 0.137u3, it exposed a bug elsewhere in MAME's implementation. The internal palette RAM in the NES PPU is only 6 bits wide, but MAME was retaining--and using--all 8 bits written and just masking the top 2 out when the palette RAM was read back by the CPU. |
|---|