MiSTer updates and changelog

[Sorgelig]

QL:
- Many improvements from Marcel Kilgus.
Please read updated readme for more info.

[Slein]

New Core: PolyPlay
The only Arcade from East Germany.

[Sorgelig]

NES:
- Fix video shift when gamma correction applied.

[Sorgelig]

C64,C16,VIC20,ZXSpectrum:
- Option for 216/270 lines crop on 1080p resolution.

[Sorgelig]

Linux:
- Updated Midilink
- Support for xow (XBOne Wireless dongle) loadable driver.
- Access HDMI EDID from Linux.
- Other improvements and tweaks.
Note: don't forget to run "updateboot" if you update existing SD card directly on MISTer.

[Sorgelig]

Linux:
- add back missing jq utility.

[FPGAzumSpass]

New Core: AtariLynx
See readme for boot.rom information

[Sorgelig]

ZX Spectrum Next:
- Initial port.
This version uses standard SDRAM (not SRAM).
Please read the readme.

[Slein]

New Core: TIA-MC1
Another Arcade from behind the iron curtain.
Included games: Billiard, Gorodki, Konek Gorbunok, Kot-Rybolov, Snezhnaja Koroleva, SOS

[alanswx]

New Core: Mr. Do!
Classic arcade game brought to us by Pragma - Darren Olafson

[Sorgelig]

ao486:
- Write protect option for floppies.
- Updated framework (updated HV-Integer behavior).

[Sorgelig]

MacPlus:
Port latest changes from MiST:
- Proper support for secondary hard drive.
- RTC with RAM (Support for OS 7.5.x).
- FX68 CPU (68000 mode).
- VIA from Gideon.
Note: FDD currently doesn't work with 68010/68020 on 16MHz.

[Sorgelig]

Main:
- Progress bar for arcades. Update NeoGeo progress bar.
- Tweaks in ST and Minimig menus.
- ini: support [arcade] section (all arcades), original arcade name and name provided by MRA.
- ini: support additional core names (+core).
- DEFMRA option for easier arcade core debugging.
- FC option to store file name.
- Fix no files message if previously loaded file is missing.

[Sorgelig]

Gameboy:
- CPU and PPU files from paulb-nl.
- Option to load SGB border (paulb-nl).
- Palette and SGB border options get remembered now.
Note: you must update Main to latest!

[Sorgelig]

ao486:
- Add COM2 serial.
- Option to use USER_IO for COM2 or MIDI.

[FPGAzumSpass]

AtariLynx:
- Lynx flip mode
- CRT H/V shift
- Sync core to 60 Hz
- Flickerblend
- fix 3 pixel/1 pixel bug in 240p mode
- Add speedselect for Fastforward speed
- added HV integer mode
- update sys

[Ace]

Time Pilot '84:
-Core rewritten from scratch for better stability
-Screen centering added
-Minor tweaks to audio gain
-Correct mistakes in the switchable low-pass filters
-Fix two reversed DIP switches and updated MRAs accordingly
-Update framework

[Sorgelig]

ZXNext:
- Update base code to latest Next code.
- Update boot.vhd to latest version matching the core version.
- Improvements in SDRAM.
- Improvements in virtual SD card.
- Some changes in keys: F1->F4, F11->F9 (matches original Next now)

[Sorgelig]

Main:
- Make sure wallpaper is restored after linux FB mode.
- File I/O tuned for higher performance.
- Save states: fixes and support for save of all 4 slots (relevant cores will be updated soon).
- Export HOME variable for scripts.

[Sorgelig]

ZX Spectrum:
- Port FE issue2/3 option.
- Re-add DivMMC/ESXDOS (read the updated Readme!)
Note: you must update Main as well!

[Sorgelig]

Main:
- Hotfix: writes with new flags.

[Sorgelig]

ZX Spectrum:
- Fix tape unable to load in Issue 2.
- Option to mute tape sound.

[Sorgelig]

QL:
- Switched IPC code to Hermes binary for better keyboard experience (Marcel Kilgus)
- Updated framework.

[Sorgelig]

ZXNext:
- sd_card: Fix STOP_TRANSMISSION command (hangs in Poggie demo).
- sd_card: 8-wire I/O mode for VHD to decrease waiting cycles.

[Sorgelig]

Oric:
- Switch PSG to jt49. Option for stereo ABC/ACB (Ramon Martinez)
- Updated framework.

[pragma]

Mr. Do!:
- Rewrote video timing
- Added screen flip in menu

[Sorgelig]

ZXNext:
- Tweaks and fixes in VHD access (20210404 release might corrupt VHD upon write).
- Improved performance on 14MHz and 28MHz modes.
- Add hard reset, so can mount different VHD/SD without reloading the core and choose different machines.
- Add CPU clock info to OSD.

[Sorgelig]

ZX Spectrum:
- Fixes and tweaks in DivMMC VHD.

[Sorgelig]

ZXNext:
- Add second drive (D:).
- Add wait state while writing to VHD which should fix write timeout in some cases.
- Add RTC.
- Support for TZX and CSW(non-compressed) tape formats.

[jimmystones]

Irem M62:
Various video related fixes by paulb-nl
- Fix hires ce_pix
- 1 black pixel column on the left and 1 pixel missing on the right
- Missing last line
- Original 55Hz timing with option for PAL
- Add Analog H/V offset options
Add pause, update framework