Groovy core for MiSTer

General description

This core is a analog gpu for crt for subframe latency emulators

Features

Very low latency (3ms tested with GILT on GroovyMAME with frame delay 8)
Full RGB888
Switch all modes (progressive/interlaced) reprogramming pll according to modeline
Connect with ethernet (can be work on wifi5/6 or Gb lan)
Menu options: scandoubler, video position, frameskip (uses framebuffer if emulator don't send frame at time), ..

To install on your MiSTer you need replace MiSTer binary from /media/fat (core isn't official yet)

Emulators available

GroovyMAME

for src details, see GroovyMAME fork by @Calamity https://github.com/antonioginer/GroovyMAME/tree/nogpu_0261 ,to activate new MiSTer backend set on command line args:

-video mister 
-aspect 4:3 
-switchres 
-monitor arcade_15 
-mister_window 
-mister_ip "192.x.x.x" 
-mister_compression lz4 
-skip_gameinfo 
-syncrefresh 
-nothrottle

Mednafen

for src details, see emu4crt fork https://github.com/psakhis/emu4crt ,on mednafen.cfg set:

mister.host "192.x.x.x"
mister.port 32100
mister.lz4 1 (raw or lz4)
mister.vsync 0 (automatic frame delay)

Retroarch (Dreamcast non working atm)

on retroarch.cfg set:

mister_ip = "192.x.x.x"
mister_lz4 = "true"
video_mister_enable = "true"

*Automatic frame delay for best results on latency options