| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 06845 | Gameplay | Minor | Always | Jan 16, 2018, 07:24 | Jan 17, 2018, 07:06 |
| Tester | einstein95 | View Status | Public | Platform | MAME (Self-compiled) |
| Assigned To | Tafoid | Resolution | Fixed | OS | Linux (64-bit) |
| Status [?] | Resolved | Driver | |||
| Version | 0.193 | Fixed in Version | 0.194 | Build | 64-bit |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary |
 06845: gamegear [shinfrc2]: corrupt tiles on first in-game textbox, corrupt audio when loading save |
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| Description | When starting the game, a couple bugs are evident off the bat. When loading a game and the girl with the book says "Please read the story to me.", the audio starts playing random notes. In the first textbox in-game, there are corrupt tiles (from videos of gameplay this should read "NICK"). | ||||
| Steps To Reproduce |
(Audio) From the main menu, load or create a new save. (Text) At the start of a new game, read the first textbox. |
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| Additional Information |
My speculation is core timing bugs throwing off the game's decompression routine or other things. Youtube video showing gameplay on console. (title screen at 5m mark) |
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| Github Commit | |||||
| Flags | |||||
| Regression Version | 0.149 | ||||
| Affected Sets / Systems | gamegear [shinfrc2] | ||||
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Attached Files
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 0002.png (4,375 bytes) Jan 16, 2018, 07:24 Uploaded by einstein95First instance of corrupt tiles
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| shining force ii - the sword of hajya (usa, europe)000.png (2,931 bytes) Jan 16, 2018, 08:16 Uploaded by einstein95 What it's meant to show
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 No.14670
Tafoid Administrator
Jan 16, 2018, 10:15
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I did some research on this earlier when it was shouted on bannister.org shoutbox. Regression is 0.149 - specifically - appears to be work done on May 23, 2013 related to nvram handling for gamegear/sega master system. I, too, thought it was something cpu throwing things into the weeds, but I then noticed that in testing loading the game picker style via the -cart selection allows the game to function correctly so it would appear the XML is not allocating enough RAM/NVRAM for the process when running via softlist. https://github.com/mamedev/mame/commit/5477d4ded39f81ec1be32ac20568552dc05650df |
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 No.14671
einstein95 Tester
Jan 16, 2018, 12:12
edited on: Jan 16, 2018, 12:19
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Thanks Tafoid. Did a quick check and changed it to 32768 and it fixes this regression. EDIT: According to http://www.digital-circuitry.com/GameGear_Carts.htm the Japanese version uses a KM62256BLG-10L chip for RAM which gives 32Kx8 standard SRAM. |
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No.14672
Haze Senior Tester
Jan 16, 2018, 19:47
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sounds like it should be changed to 32K for all the Shining Force 2 sets then, guess somebody put in the wrong data. |
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No.14673
Osso Moderator
Jan 17, 2018, 07:06
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guess SMS Power was the source. It's listed as 24KB there: http://www.smspower.org/Games/ShiningForceGaidenII-GG |