Genesis-Plus-GX/wiki/Features.md

Genesis Plus main goal is to provide the most complete & accurate emulation of the Sega Genesis/Megadrive hardware.

The original emulation core from Charles Mac Donald has been largely modified to improve overall accuracy and therefore compatibility, as well as adding emulation of various peripherals, cartridge and system hardware.

Very Accurate & Full Speed Sega 8-bit / 16-bit emulation

• accurate emulation of SG-1000, Mark-III, Master System (I & II), Game Gear, Genesis / Mega Drive, Sega / Mega CD hardware models (incl. backwards compatibility modes)
• NTSC (60Hz) & PAL (50Hz) video hardware emulation
• highly accurate 68000 & Z80 CPU emulation & synchronization
• highly accurate VDP emulation (all rendering modes, mid-line changes, undocumented registers,…) & timings (HBLANK, DMA, FIFO, HV interrupts,…)
• sample-accurate YM2612,YM2413, SN76489, & RF5C164 PCM sound chips emulation
• cycle-accurate sound chips synchronization with 68000/Z80 CPU
• cycle-accurate 68000 & Z80 CPU synchronization
• optimized Main-CPU / Sub-CPU synchronization (Sega/Mega CD)
• accurate CDD, CDC & GFX chip emulation (Sega/Mega CD)
• accurate CD-DA fader emulation (Sega/Mega CD)
• Mode 1 cartridge support (Sega/Mega CD)
• Audio CD & CD+G support (Sega/Mega CD)
• high-quality audio resampling using Blip Buffer
• basic hardware latency emulation (VDP/68k, Z80/68k)
• full overscan area emulation (horizontal & vertical color borders)
• optional Game Gear extended screen mode
• optional Game Gear LCD ghosting filter
• optional Blargg's NTSC filters
• optional BOOT ROM support (Master System, Game Gear, Genesis / Mega Drive)
• optional TMSS hardware emulation (Genesis / Mega Drive)
• preliminary PICO emulation
• support for raw (.bin, .gen, .md, .sms, .gg & .sg) and interleaved (.smd & .mdx) ROM files
• support for various CD image file formats (CUE+BIN, ISO+WAV & ISO+OGG)
• support for subcodes external files (SUB)

Support for various peripherals

• 2-buttons, 3-buttons & 6-buttons Control Pads
• Sega Team Player & EA 4-Way Play multitaps
• Master Tap
• Sega Mouse
• Sega Paddle Control
• Sega Sports Pad
• Sega Graphics Board
• Terebi Oekaki tablet
• Sega Light Phaser
• Sega Menacer
• Konami Justifiers
• Sega Activator
• XE-1AP analog controller

Support for various cartridges extra hardware

• SVP DSP (Virtua Racing)
• J-Cart adapter (Micro Machines & Pete Sampras series, Super Skidmarks)
• Backup RAM (max. 64KB)
• I2C (24Cxx), SPI (95xxx) & MicroWire (93C46) EEPROMs
• RAM cart (max. 512KB) (Sega/Mega CD)
• “official” ROM bankswitch hardware (Super Street Fighter 2)
• “official” backup RAM bankswitch hardware (Phantasy Star 4, Legend of Thor, Sonic the Hedgehog 3)
• all known unlicensed/pirate cartridges bankswitch & copy protection hardware
• all known Master System & Game Gear cartridge “mappers” (incl. unlicensed Korean ones)
• Game Genie & Action Replay hardware emulation
• Sonic & Knuckles “Lock-On” hardware emulation
• support for ROM image up to 10MB (Ultimate MK3 hack)

Gamecube/Wii generic features

• fully featured & optimized Graphical User Interface
• 48 kHz stereo sound
• optimized GX video rendering engine
• perfect audio/video/input synchronization
• 50/60 Hz video output support
• original low-resolution video modes support (interlaced & non-interlaced)
• high-resolution interlaced (480i/576i) & progressive (480p/576p) video modes support
• hardware bilinear filtering
• configurable BIOS & Lock-on ROM files
• configurable sound mixer (FM/PSG levels) and filtering (Low-Pass filter & 3-Band equalizer)
• configurable NTSC filter
• independently configurable region mode, VDP mode & Master Clock
• 1~4 Players support
• automatic Backup RAM and State files loading/saving
• automatic game files loading
• game files loading history
• load files from SD/SDHC or DVD
• support for zipped ROM files
• game internal header information display
• internal game screenshots
• Game Genie & Pro Action Replay codes support through .pat files
• cartridge "hot-swap"
• automatic disc swap

Wii extra features

• up to 8 Players support
• Wii Remote, Nunchuk & Classic controllers support
• Wii Remote IR support & calibration for light guns
• Wii U Pro Controller support
• USB mouse support for mouse emulation
• USB drive support (IOS58 is required for USB2)
• configurable hardware “Trap” filter & Gamma correction
• "Wiiflow" plugin compatibility