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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06697 Crash/Freeze Critical (emulation) Always Oct 5, 2017, 08:14 Oct 7, 2017, 16:28
Tester M.A.S.H. View Status Public Platform MAME (Official Binary)
Assigned To Kale Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver stv.cpp
Version 0.190 Fixed in Version 0.191 Build 64-bit
Summary 06697: grdforce: Hangs after insert coin
Description Guardian Force hangs after insert coin with black screen since MAME 0.184
Steps To Reproduce
Additional Information Sea Bass Fishing was fixed in MAME 0.184:
http://mametesters.org/view.php?id=4454
MAME 0.185: https://github.com/mamedev/mame/commit/c1f721a2504383df297017bfac622a97e3b1c7f7
Update MAME 0.185: https://github.com/mamedev/mame/commit/28e287458e5000b7f9ea833251605526e40ab33e
Sea Bass explicitly wants a monitor mode bit to be 0 when screen is disabled from bios to game transition.

This fix has something to do with Guardian Force. Deleting the following lines in video\stvvdp2.cpp (line 6010) fixed the hang/black screen
// if(STV_VDP2_LSMD == 0) // same for non-interlace mode
// {
// if((STV_VDP2_HRES & 1) == 0)
// return STV_VDP2_DISP;
//
// return 1;
// }
Flags
Regression Version 0.184
Affected Sets / Systems grdforce
Attached Files
 
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Notes
2
User avatar
No.14229
Kale
Developer
Oct 7, 2017, 01:28
That doesn't take Sea Bass Fishing feelings into any consideration.

Hopefully fixed forever.
User avatar
No.14238
M.A.S.H.
Senior Tester
Oct 7, 2017, 16:28
Thx for fixing!
https://git.redump.net/mame/commit/?id=4c913c8641eceabfec0f3b2d67ac272d23e0d5ba