MiSTer updates and changelog

[Sorgelig]

Arcade: Ghosts'n Goblins:
- Fix imaginary ladder.

[Sorgelig]

Atari 800:
- Disk write support.
- CPU fix to support illegal opcodes.
- Update to latest code.
- 4MB RAM option.

[Sorgelig]

Atari 800:
- SDRAM is not required for memory config up to 320KB and if no Cartridge used.
- OSD option for Dual Pokey.
- BIOS option to choose different configs.
- Update disk emulator. Support for (some)ATX disk format (from upstream sources).
- Update reset behaviour to unmount all drives/carts.
- Back to old CPU (passes more acid800 tests).

Atari 5200:
- SDRAM is not required any more.
- Update to latest upstream sources.
- Update reset to reload the cart.
- Back to old CPU (passes more acid800 tests).

[Sorgelig]

Atari 5200:
- Add support for Bounty Bob Strikes Back cartridge.
- Trying to fix the joystick.

[Sorgelig]

Gameboy:
- Fix Xenon 2 (and probably other games) sprites.
- T80: fixed 16 bit DEC opcode timing
- sys: fix the audio
- sys: update the scaler.
- remove fast boot option. It's buggy.

[Sorgelig]

C64:
- Option to use User port for UART.
- Update the scaler.

[Sorgelig]

C64:
- Update keyboard layout. Support for F2,F4,F6,F8 keys.
- Add readme with some important info.
- Adjust frequency difference between C64 and C1541 for PAL/NTSC for some picky fast loaders.

[GreyRogue]

TI-99/4A:
- Fix the reset combo and the reset button.
- Add controller swap option, and additional common controls (enter, back, redo).
- Fix STCR status flag. It looks like it should be updating the Higher than, Greater than, Zero and Carry flags.
--Fixes controls for Ms Pac Man
--LDCR probably needs a similar fix.

[Sorgelig]

Genesis:
- Fix audio cracks.
- Update the scaler
- Update the scandoubler.
- Update FX68K to latest version.

[Sorgelig]

TurboGrafx16:
- Support for Linux audio.
- Fix the audio cracks.
- Update the scaler and scandoubler.

[Sorgelig]

MiSTer:
- OSD: adjust scrolling.
- input: analog stick: -128 is illegal value. Limit to -127..+127 range.
- input: use OSD button to finish remapping for game.
- input: 8bitdo PSC receiver: special combo handling as OSD button.

[Sorgelig]

New core: Arcade: 1942
Port of Jotego's 1942 core.

[Sorgelig]

C64:
- Support for cartridge autoload (read the readme)
- Autorun for PRG files.

[Sorgelig]

Amstrad:
- PSG: fix the noise channel.
- Switch to open source scaler.
- Update the scandoubler.
- Fix the audio crackles.
- Support for Linux audio.
- other updates in framework.

[Sorgelig]

Arcade 1942:
- Fix the wrong output buffer in rotated screen.
- Adjust the aspect ratio.
- Screen flip option.

[Sorgelig]

Genesis:
- Adjust PSG tone registers.
- Adjust gamepad handling (Fix: MK1 and Comix Zone 6-button mode).
- VDP: clear VSRAM on ROM loading, adjust INT position.
- Update scandoubler.

[Sorgelig]

SNES:
- Support for SA1 games from srg320
- Update the scaler and scandoubler.
- Some internal update to improve the stability.
- Other sys updates.

[Sorgelig]

ao486:
- Joystick support (digital and analog)
- Update sys to latest version.

[Sorgelig]

MiSTer:
- Update MidiLink options.
- 2 more backgrounds for Menu core.
- Fix volume control from OSD.

Menu:
- Update sys.
- 2 more backgrounds.
- Dim the video after 2 minutes of inactivity.

[Sorgelig]

Linux:
- Update Midilink.
- Move MIDI soft synth folders to linux folder
- Move timezone file to linux folder
- Tweak MT7601u WiFi driver.

[Sorgelig]

SNES:
- SA1 fixes
- PPU fixes (Uniracers)
- 128KB for BSRAM (used in some games hacks)
- sys: audio output rework

[Sorgelig]

MiSTer:
- Archie: remove FDC/File I/O customizations.
- Archie: OSD option to swap mouse buttons 2/3
- Report image size 0 if no save available (may require update of cores).
- Other fixes.

[Sorgelig]

Archie:
- FDC improvements from Gyurco with read/write support.
- RTC support with ability to load CMOS.DAT
- Variable pixel clock for correct refresh rates.
- Overall code tweaks and fixes to improve stability.

[Sorgelig]

Gameboy:
- Many CPU and Video fixes from brNX.
- Update the framework to latest.

[Sorgelig]

NES:
- FDS: allow to run unlicensed games.
- Other fixes.
- Update the framework to latest.