The core is very outdated 0.9.48 and the standalone 1.22.1

ToniBC commented 5 years ago

This core is very outdated and several versions of mednafen came almost with exclusive arrangements for Saturn.

Theoretically applied updates....

SS: Fixed a logic error in the BIOS sanity check code that caused it to throw a lesser error error message in some circumstances, and made the error messages related to BIOS file misconfiguration more verbose (and hopefully more helpful ...). SS: Fixed at least one background layer graphical glitch in "Radiant Silvergun" (at the start of stage 2C). SS: Fixed the graphical glitch near the end of the intro in "Snatcher". SS: Added Japanese keyboard (HSS-0129) emulation. SS: Improved emulation of SCU DSP DMA to program RAM, per tests on to SS (still nowhere near perfect, the way it's implemented on hardware is kind of horrible, but it should work ok if games use it it's meant to be used); fixes graphical glitches in "Shining Force III - Scenario 2", and perhaps in the other "Shining Force III" games as well. SS: Flush the prefetched SCU DSP instruction when PC is set via PPAF, instead of when END / ENDI executes or when execution is forcibly stopped, per tests on SS. SS: Disallow SCU DSP LOP from being written in a looped single instruction unless it is the final iteration, per tests on a SS. SS: Allow SCU DSP LOP to underflow to 0xFFF with LPS and BTM, per tests on to SS.

Mednafen 1.21.3 (waiting for update)

SS: Added "House of the Dead (Japan)" to internal database of games to use the data cache read bypass kludge with, to fix a game crash on the gun calibration screen. SS: Added "Virtua Fighter Kids (Java Tea Original)" and "World Series Baseball" to internal database of games to use the data cache read bypass kludge with, to fix gameplay glitches. SS: Added kludge to fix layer offset problem in "Alien Trilogy". SS: Added "WipEout" to internal database of games to use the data cache read bypass kludge with, to fix a hang that occurred when trying to exit gameplay back to the main menu._

Mednafen 1.22.0 (waiting for update)

SS: Added support for directly loading <= 1MiB bootable cart ROM images, with the expected file extension being "ss", for debugging and testing purposes. SS: Added setting "ss.cart.auto_default". SS: Added "Fighting Vipers" to the internal database of games to use the data cache read bypass kludge with, to fix the problem of the computer-controlled opponent sometimes losing the will to not be a statue. SS: Emulated input devices' internal states were not being reset on virtual power toggle; fixed. SS: Reorganized SCSP DSP emulation code to make the lifetime of variables clearer, for a possible x86_64 dynarec in the future. SS: Fixed an emulation inaccuracy with the handling of the SH-2 "mac.l" instruction when saturation is enabled, per tests on a SS.

Mednafen 1.22.1 (waiting for update)

SS: Corrected line-scroll handling in double-density interlaced mode with non-zero LSS; fixes broken background graphics effect in Dural's stage in "Virtua Fighter 2". SS: Added "Linkle Liver Story" to the internal database of games to use the data cache read bypass kludge with, to fix a crash/hang when going to the world map.

Some of the faults may already be solved, but, for example, those mentioned in House of the Dead, in the calibration screen of the gun, because in Retroarch it remains black and Mednafen works correctly.

It would be nice to update the core with the latest changes to improve the emulation.

Mr-Jake commented 5 years ago

Looking at the source code, it seems relatively simple to update the internal database portion. The current 0.9.48 db.cpp would have to be replaced by the new db.cpp from the 1.22.1 release. There was also a namespace addition to the header file db.h.