[SNES] Graphical Glitches in NHL 94

[microace]

On 2022-02-09 nightly, there are graphical glitches in the NHL 94 opening screen:

Expected behavior from bsnes:

Using redump NHL 94 USA rom

OS is Windows 10 with OpenGL 3.2 video driver

[Max833]

The reason why it is working with bsnes is the use of the scanline-based PPU renderer (you have to enable "fast mode"; ares has this renderer as well by default, but it's a little bit different) and this hack:
https://github.com/bsnes-emu/bsnes/blob/f57657f27ddec337b1960c7ddaa1b23894bc00c3/bsnes/target-bsnes/program/hacks.cpp#L44

If you use the cycle-based PPU renderer with bsnes (you have to disable "fast mode") the same problem appears. But for a different reason: https://arstechnica.com/gaming/2021/06/how-snes-emulators-got-a-few-pixels-from-complete-perfection/

Long story short: There are still many games like that (with very minor issues). Decapping the PPUs is the only 100% solution to solve that problem.