higan v103

多機種模擬器 higan 發布新版，更新如下 :

With this release, PC Engine, Master System, Game Gear, Mega Drive and the newly added SuperGrafx support are now quite usable! They're far from the best emulators for these systems, but with many bugfixes, full sound emulation, and save state support ... many games are now fully playable with decent accuracy.
The Game Boy Advance emulation is also now substantially improved with vastly improved sound quality and a new dot-based PPU renderer. With that change, every single component in higan is now cycle-based. Regrettably, these changes do carry a ~20% performance penalty compared to GBA emulation in v102.
Changelog:

• added SuperGrafx emulation
• improved audio band-pass filtering for all emulated systems
• screen rotation is now a hotkey; automatically rotates control bindings
• screen rotation now supported on the Game Boy Advance as well (used by a small number of games)
• massive improvements to Mega Drive emulation
• massive code cleanups and rewrites to many CPU emulation cores (MOS6502, WDC65816, SPC700, etc)
• Famicom, Master System, Mega Drive: added PAL emulation support
• PC Engine, SuperGrafx, Master System, Game Gear, Mega Drive: added save state support
• PC Engine, SuperGrafx: added PSG sound emulation
• Master System, Game Gear: added PSG sound emulation
• Mega Drive: added Z80 APU emulation [with help from Cydrak]
• Mega Drive: added PSG sound emulation
• Mega Drive: added YM2612 sound emulation [Cydrak]
• Super Famicom: fixed Super Game Boy emulation
• PC Engine: added save RAM support (using per-game PCE-CD backup RAM)
• Game Boy Advance: substantial improvements to audio emulation quality
• Game Boy Advance: convert scanline-based PPU renderer to a dot-based renderer
• Game Boy Advance: properly initialize CPU state (fixes Classic NES Series games)
• Game Boy Advance: MUL timing corrected [Jonas Quinn]
• Mega Drive: emulate special mappers for Phantasy Star IV, Super Street Fighter II, etc.
• Super Famicom: use darker luma for INIDISP=0 (large improvement to Final Fantasy III opening)
• Super Famicom: fixed bugs in SMP OR1,AND1 instructions
• cheat code database regrettably removed from official releases; will be made available separately

This changelog is a summary of major changes. For a detailed list of all changes, which spans several pages, please see the higan Gitlab repository.

https://byuu.org/?v=103