Core de MiSTery portado por @Somhi

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Subcritical
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Core de MiSTery portado por @Somhi

Mensaje por Subcritical » 27 Abr 2023, 09:17

Core de Atari ST/STe portado por @somhi.
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
Turbo bus - double RAM access speed
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
RP5C15 RTC Chip
Ethernet on cartridge port interface (Ethernec)
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
No RAM cache for Mega STe (but the cache control selects turbo bus speed)
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


Más información:
https://github.com/AtlasFPGA/MiSTery

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