Atari ST/STe for SoCkit (MiSTer) Platform

This is a port to SoCkit from Mister https://github.com/MiSTer-devel/AtariST_MiSTer

Follows original ReadMe.

Atari ST/STe for MiSTer (port of MiSTery)

Thanks to Gyorgy Szombathelyi for MiSTery core

Following is original ReadMe from MiST.

MiSTery - An Atari ST/STe core for the MiST board

Features:

• Cycle accurate STe GLUE+MMU combo (re-created from the original schematics)
• Cycle accurate FX68K CPU core
• Cycle accurate Blitter offered by Jorge Cwik
• Mostly cycle accurate shifter based on schematics made from reverse engineering
• MegaSTe 16 MHz CPU mode
• RAM size up to 14MB
• Support for all TOS versions
• 2 Floppy disc drives
• ACSI hard disc support
• Viking compatible hi-res monochrome card support
• Real IKBD with HD63701 MCU
• Real MIDI input/output using MiST's UART pins
• Serial/parallel port redirect to USB
• Gauntlet type 4 joystick interface support
• STe controller port support
• Optional scandoubled/YPbPr video output

Usage:

Put the core.rbf and the TOS as tos.img to the SD-Card. TOS/hard disc/floppy images are selectable in the OSD (F12). With F11, you can toggle between normal and STe joystick ports.

Current issues/limitations:

• Some MFP imperfections
• Some bugs in ST mode
• No RAM cache for Mega STe
• Missing Ethernec support
• No RTC
• Only fake LMC1992
• PAL clock only (32.084 MHz)
• Since Jagpads have 21 buttons, not all are mapped to MiST controllers when using STe game ports
• No STe paddle handling (but it has 0 software support)

Thanks to:

• Till Harbaum for the MiST board, original MiST core, new IKBD code
• Jorge Cwik for the FX68K CPU core, FX ST Blitter code and shifter decap
• Christian Zietz for recovering the schematics of the GSTMCU