happiNESs v0.9.1 is released. happiNESs is open-source and programmed in Swift by danielle / quephird) for macOS.

happiNESs Changelog:
This build addresses a bug in the UxROM mapper as well as exposes two undocumented opcodes, ASR and SBX, so that games that use them can be played in this emulator.

Download: happiNESs v0.9.1
Source: Here