Viewing Issue Advanced Details
|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)|
|Version||0.193||Fixed in Version||0.194||Build||64-bit|
|Summary||06845: gamegear [shinfrc2]: corrupt tiles on first in-game textbox, corrupt audio when loading save|
|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.
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)
|Affected Sets / Systems||gamegear [shinfrc2]|
0002.png (4,375 bytes) Jan 16, 2018, 07:24 Uploaded by einstein95
First instance of corrupt tiles
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
|There are no relationship linked to this issue.|
Jan 16, 2018, 10:15
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.
Jan 16, 2018, 12:12
edited on: Jan 16, 2018, 12:19
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.
Jan 16, 2018, 19:47
|sounds like it should be changed to 32K for all the Shining Force 2 sets then, guess somebody put in the wrong data.|
Jan 17, 2018, 07:06
|guess SMS Power was the source. It's listed as 24KB there: http://www.smspower.org/Games/ShiningForceGaidenII-GG|