MiSTer updates and changelog

[Sorgelig]

NES:
- Fixes for PPU and MMC3 (Kitrinx).
- Improved MMC1 mapper (paulb-nl).
- Fix zapper mouse trigger mode.

[Sorgelig]

NeoGeo:
- Support for custom aspect ratio.
- Update the framework.

[dshadoff]

AliceMC10:

- Added support for real tape through the ADC adapter

[Sorgelig]

ao486, AtariST, Minimig:
- Use USER_IN[0] for MIDI RX.
- Update the framework.

[Sorgelig]

C64:
- Update palette to latest and more accurate colors.
- Use Win+F11 as original RESTORE when Action Replay or similar cart is used.
- Update the framework.

[Sorgelig]

Astrocade, BBCMicro, BK0011M:
- Support for custom aspect ratio.
- Update the framework.

[Sorgelig]

Minimig:
- Fix MIDI input over USER_IO port. Add note to readme.

[Sorgelig]

SNES:
- Fix bus A sources for CPU IO addresses (srg320).
- Justifier support for Lethal Enforcers (Shane Lynch).
- Lightgun: fix coordinate translation.
- Fix pixels artifacts on VGA output.
- Update the framework.

[Sorgelig]

C16:
- C1541: update VIA.
- Support for custom aspect ratio.
- Update the framework.


VIC20:
- Audio fixes (nino-porcino).
- C1541: update VIA.
- Support for custom aspect ratio.
- Update the framework.

[Sorgelig]

ZX Spectrum:
- Support for 48K SNA format.
- Some minor fixes and tweaks.
- Update the framework.

[Sorgelig]

MacPlus:
- Support for custom aspect ratio.
- Update the framework.

[Sorgelig]

MegaCD:
- Fixes (Timer, bus access) from srg320.
- Support for custom aspect ratio.
- Update the framework.

[Sorgelig]

Amstrad:
- CRTC: attempt to fix constantly re-triggered VSYNC in the same row (gyurco).
- Update the framework.

[Sorgelig]

Gameboy:
- fix fastforward soundoption with FF-toggle mode (Robert Peip)
- add RTC internal functionality and saving to sdcard (append to savegame) (Robert Peip)
- Update the framework.

[Sorgelig]

AtariST:
- Update gstmcu to latest.
- Update the framework.

[dshadoff]

CoCo2:
- Added "passthru" for cassette (based on PIA selection)
- Adjust brightness of inverted text
- Added Dpad emulation of analog stick
- Add capslock to function as upper/lowercase (shift-'0' on original machine)
- Add OSD selection for original keyboard layout (approximation)
- Improve menu settings arrangement
- integrate newest framework fixes

[Sorgelig]

MegaCD:
- Fix and rework auto-region.

[alanswx]

Centipede
Audio fixes and other fixes by JaguarLV

[Sorgelig]

Menu:

With great help from bellwood420 this build has workaround against DDR3 bridge hang. I think every user noticed time after time video got screwed (it's especially visible on HDMI. VGA users may just get some strange misbehave of core) so only hardware reset or power cycle could fix it. Probably this came to an end. This is an initial attempt to fix the issue, so currently in order to avoid video to get screwed you have to start cores from Menu core. Later, if this will be proven as fixed, the fix will be added to all other cores so it will be possible to start core from core without going back to Menu core.

So, i need feedback if this build fixes the problem. But you have to strictly follow following rules or fix won't work for you:

- Start any core ONLY from Menu core (so go back to Menu core if you want to start other core. Better to use HW reset to go back to Menu).

- Use HDMI video (VGA output doesn't show this problem clearly and doesn't allow to identify the issue).

[alanswx]

Donkey Kong 3
+ Released gaz68's Donkey Kong
+ the build seems a little unstable, but this RBF is good. Needs timing fixes.

[Sorgelig]

BBCMicro:
- Support for multires screens (Elite)

[alanswx]

Future Spy, Zaxxon, Super Zaxxon
+ new game support - Future Spy
+ updated sys

[Sorgelig]

Jupiter:
- Support for custom aspect ratio.
- Update the framework.

Memtest:
- Add joystick support (misteraddons).
- Update the framework.

[Sorgelig]

MegaCD:
- Rollback Timer interrupt fix caused problems in several games.
- Don't filter audio from CD addon.
- Other fixes.

[Sorgelig]

Gameboy:
- Fix timer and some mappers (Robert Peip).
- Other fixes.

[Sorgelig]

VIC20:
- Fix audio distortion.
- Other fixes.

[alanswx]

Galaxian, etc
+ added King and Balloon
+ added flip option
+ added high score save for Azurian,Black Hole, Devil Fish,Galaxian, King and Balloon, Moon Cresta,Orbitron,Picses,Uniwar S,

[Kitrinx]

Announcing the Official MiSTer FPGA discord server. MiSTer has a presence on many discord servers but the project has grown into needing a dedicated server of its own. I’d like to invite you all to please join.

https://discord.gg/4xKVg4XVYn

[Sorgelig]

MegaCD:
- Make CD/PCM audio filtering optional.

[Sorgelig]

MSX, PET2001, Oric, AY-3-8500:
- Support for custom aspect ratio.
- Update the framework.