MiSTer updates and changelog

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SMS:
- Fixes and support for some SG1000 games from theflynn49.
- Cheat engine from Kitrinx.

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TurboGrafx16
- fix the noise channel from greyrogue
- Cheat engine from Kitrinx.

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Gameboy:
- Improved clocking from brNX.
- Cheat engine from Kitrinx

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MiSTer:
- Use CRC32 in cheat name to match the ROM (you need new cheats from Gamehacking site).
- Internal OSD improvements to let the cores easily hide/disable the items.
- hdmi_limited option from CruelTott (needs to be added in every core to work).

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SNES:
- SuperScope (light gun) support.
- Some internal update in sys.

Note: You need to update MiSTer binary to latest!

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MiSTer:
- SNES: detect OBC1 chip.

SNES:
- Support for OBC1 chip from srg320.
- SuperScope: no-cross option, display Turbo mode by cross' color, LT/RT - alternative cursor/fire buttons.
- Fix glitch in some games due to sporadic interlace mode switch.
- Update sys.

Note: Requires MiSTer binary update!

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SNES:
- Better handling for resolution change.
- Turbo mode (SA1 mods aren't required any more).

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Genesis:
- Better handling for resolution change.
- Turbo mode.

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Linux,MiSTer,Menu:
- Update the Scaler to support the frame buffer.
- Implement Linux frame buffer driver.
- Add virtual terminal on frame buffer.
- Add some graphics libraries and apps.
- Background support for Menu core (HDMI). Read the updated readme in Menu core.

You have to update Linux in order to use new MiSTer binary!
Warning: If you use update script which only updates the MiSTer and Menu but doesn't update the Linux, then you won't be able to run the MiSTer after update!

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Linux:
- Fix: mouse didn't work in previous release.
- add dialog package
- add fbgrab
- add weston GUI (experimental)

MiSTer:
- Fix Logo and Background pictures after cold boot.
- Input: disable mouse events from DualShock 4 if in LightGun mode.
- Input: some improvements in mouse handling.
- Reduce logging in Menu core while HPS screen is active.
- Fix file size for remote files.
- Some minor tweaks and fixes.

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Linux, MiSTer, Menu:
- Update the scaler.
- Fixes in frame buffer.
- Support for indexed 8bit (256 colors) mode.
- Linux script vmode to change the framebuffer resolution and color mode.
- Execute scripts in frame buffer. Also can be used to start Linux apps/games.
- Basic gamepad to key mapping for Linux apps to use in menus.
- More "aggressive" sleep for MiSTer while in Linux screen to free CPU for apps/games.
- Hide OSD in Menu core after 2 minutes of inactivity when background picture is displayed.

Note: you have to update all these three components to make it work correctly!

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Genesis:
- Support for SVP chip (Virtua Racing) from srg320
- Option to detect the region from header.
- Update sys.

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Linux, MiSTer:
- MC: fix subshell and console output save/restore.
- MC: support for mouse.
- MC: support media viewers for MP3/WAV/MID/MOD and PNG/JPG/GIF.
- Tweak mount options to prevent unneeded/unintended saves to SD card.
- input: support 2-buttons combo for Menu button.
- input: more cursor buttons emulation and higher repeat rate for Linux screen.
- Show SD card activity in Linux screen (Menu core).
- Improved OSD timeout (Menu core), hide logo as well, darken the screen after double timeout.
- Support for core loading from Linux.
- Many small tweaks in Linux.

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SNES:
- Fixes from srg320.
- Reset CPU turbo to normal state upon ROM loading.
- Update sys.

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MiSTer:
- Fix: 2-button menu combo didn't allow to define first button in cores.
- input: prevent unintentional RIGHT button definition after stick test.
- input: Fix: keyboard's toggle button was lost from autofire function.
- Display nag OSD on VGA output when Linux screen becomes active (requires Menu core update).
- Remove TZX parser (ZX and Amstrad cores will use FPGA parsers).

Menu:
- Ability to display different OSD for VGA.

ZX-Spectrum:
- Port TZX module from MiST's version.
- Use separate 48K ROM for ZX48 mode (update the spectrum.rom/boot.rom!)

Amstrad:
- Port TZX module from MiST's version.

[alanswx]

New core:
Arcade: Asteroids Deluxe
Thanks to James Sweet and Dave Wood (oldgit) for making this happen.

[alanswx]

New core:
Arcade: Asteroids
Thanks to James Sweet and Dave Wood (oldgit) for making this happen.

[alanswx]

New core:
Arcade: Botanic

[alanswx]

New cores:
Arcade: Capitol
Arcade: Pickin

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Genesis:
- SVP fixes.
- Update VDP to latest version.
- Option to display the border.
- Additional Aspect Ratio tweaks.
- Some other tweaks and fixes.

[alanswx]

New cores:
Arcade: Lunar Lander
Thanks to Dave Wood, Kitrinx, James Sweet

[alanswx]

New Core:
Jin
Renamed Core:
Capitol became Pleiads - Pleiads is the original version. The Capitol rom can still be loaded through the "load rom" OSD option.

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Gameboy:
- Fixes and new boot rom from brNX.
- Update framework.

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SNES:
- Fixes from srg320
- Enable saves for F1 ROCII
- Use original clock for PAL mode.
- Update framework.

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Genesis:
- Update VDP to latest.
- Fixes in gamepad.
- Update Framework.