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Uae4All2 Vita_mod rsn8887 has released Uae4All2 Vita_mod version 1.73 for the PSVita.

Changes in this Version
======
1.73 (Switch only)

- Fix savestates on Switch

Description
=====
Use4All2 Mod is an Amiga emulator for Vita and Switch. This is my mod of this great Amiga emulator that was originally ported to the Vita by Cpasjuste. Depending on when you read this, this mod might be ahead or behind his version.

![Screenshot of UAE4All2 Vita/Switch_mod](https://s14.postimg.cc/lzgf1988h/uae4all_b.jpg)

Thanks to Cpasjuste for the original port and for jumping in and adding shader support and making the assembler optimizations work.

Thanks to ScHlAuChi for extensive testing, ideas, and for contributing the new larger virtual keyboard images.

Thanks to the original authors Chui, john4p, TomB, notaz, Bernd Schneider, Toni Wilen, Pickle, smoku, AnotherGuest, Anonymous engineer, finkel, Lubomyr, pelya and many more.

Thanks to my supporters on Patreon: Andyways, CountDuckula, Matthew Machnee, and Sean Ritzo.

Installation
======
* Vita:
* Install .vpk
* Obtain and copy BIOS files “kick13.rom”, “kick20.rom” and “kick31.rom” to “ux0:/data/uae4all/kickstarts”

* Switch:
* Download and unzip `uae4all2_switch.zip`
* Copy the resulting folder `uae4all2` to `/switch/` onto your SDCard, ensure none of the “archive” flags is set.
* You should now have the executable `/switch/uae4all2/uae4all2.nro` and a folder `/switch/uae4all2/data/` with the keyboard icons and other data files on your SDCard.
* Obtain and copy BIOS files `kick13.rom` (size: 262,144 bytes), `kick20.rom` (size: 524,288 bytes) and `kick31.rom` (size: 524,288 bytes) to your SDCard into `/switch/uae4all2/kickstarts/`
* Use your favorite Homebrew Launcher or Homebrew Loader to start Uaeall2

Vita/Switch-exclusive Features
======
- Full speed emulation of most Amiga games with zero frameskip
- Large, complete virtual keyboard with adjustable position and adjustable transparency
- Three fully mappable custom control sets: map Vita buttons to any Amiga joystick or key input, three custom control sets supported
- Multiple hard-file support: up to 4 hdf files (size <2GB each) can be mounted simultaneously
- Multiple controller support on Vita TV: up to four paired controllers can be fully mapped
- Analog mouse control: control the mouse using the analog stick with adjustable sensitivity
- Custom autofire: any mapped Vita button can have autofire with adjustable rate
- Savestate with hard-file support: state can be saved even when hard-files are used
- Additional emulator settings: sprite-sprite collisions can be enabled, blitter settings can be changed
- Adjustable stereo separation
- A button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.
- Sticky virtual keyboard modifiers: allows keyboard combos like CTRL-C to be entered easily
- Touchpad style pointer controls using the touchscreen
- Parallel port joystick adapter support for multiplayer games with up to 4 joysticks.
- Additional savestate slot called auto, for automatic savestate loading

Vita-exclusive Features
======
- Shader support: default “sharp_bilinear_simple” uses integer pre-scale for sharp, undistorted pixels with minimum blur, even if game is zoomed to fill the full Vita screen.
- Bluetooth keyboard and mouse support
- Supports loading files from ux0: or uma0: partition
- Rear touch panel can be enabled for mouse pointer control

Switch-exclusive Features
======
- On the Switch, there’s no shader support yet. But the Switch resolution is high enough for perfect integer scaling with factor 3x if displayed lines is not larger than 240 and width is not larger than 426. Filtering can be set to “Bilinear” or “None”. When “Bilinear” is selected, the screen is scaled to fill the Vita display, keeping aspect ratio. No black bars on top and bottom appear. The image can be quickly zoomed using “R+Start+left/right” and vertically adjusted using “R+Start+up/down” to center it. When “None” is selected, only a perfect integer scaling is applied. Depending on the chosen Amiga screenmode, the integer scaling will be a 1x, 2x, 3x, or in principle even 4x, depending on whether the scaled Amiga screen fits. In most cases, this results in black bars on top and bottom as well as left and right.

Notes
======
- *Bios:* Please put kickstart files in `ux0:/data/uae4all/kickstarts` on Vita and in `/switch/uae4all2/kickstarts` directory on Switch. Files must be named as kick13.rom, kick20.rom, kick31.rom
- *Speed:* Most games run full speed. Some slow Amiga 1200 and WHDLoad games actually run faster if the CPU speed is reduced from 14 MHz to 7 MHz, because they rely more on custom chips than CPU. Some graphics glitches in Lionheart WHDLoad inside the caves are fixed by this.
- *Config File:* If you have problems with settings not saving etc, please delete or rename your config file in the folder `ux0:/data/uae4all` (Vita) or `/switch/uae4all2/conf/` and restart the emu. I heard this can fix many problems when you are replacing an older version of this emulator with a newer version. Lots of things are changing in the config file between releases.
- *Display on Vita:* On the Vita, the sharp_bilinear_simple shader, on by default, creates a sharp pixel image with minimal blurring. It applies a maximum integer pre-scale first. Then it scales only the small remainder using the builtin bilinear filter, keeping the aspect ratio intact.
- *Display on Switch:* On Switch, there is no shader support yet. But the 720p resolution on Switch allows 3* integer scaling as long as the displayed lines are <=240 and width is <426. This can be selected in the display menu under `shader`. There are two settings: `None (perfect integer scaling)` with black bars on top and bottom, or `bilinear (a little blurry)`, without black bars on top and bottom.
- *Screen settings:* Many Amiga games fit the screen very nicely. For example, take Chaos Engine with a screen setting of 320*200 and sharp_bilinear_simple shader enabled (or bilinear on Switch). The picture can be zoomed using R+Start+Dpad left/right, and moved vertically using R+Start+Dpad up/down to center it on the screen. Once this is done, the picture fills almost the whole screen and looks amazing with no artifacts and, on Vita, almost no blurriness. The game runs smooth with zero frameskip.
Selecting a ‘Preset Width’ of 320, 352 or 384 (max overscan) results in lo-res screen emulation, good for most games, while 640, 704, or 768 results in hi-res screen emulation, good for use with Workbench or some text-based games.
- *Blitter:* The blitter settings can help with graphics glitches in some games. Since it seems to work best, “immediate” is the default. But some games require setting blitter to “normal” and re-booting to remove graphics glitches, for example PP Hammer, Spindizzy Worlds, and Shufflepuck Cafe.
- *WHDLoad:* If you have problems with a WHDLoad .hdf game, maybe try an .adf version of the same game. Rock’n Roll is one of a few games that work on UAE4All2 only using .adf files. It has graphics glitches and runs too fast in WHDLoad with .hdf. To make it work correctly, I loaded the “Rock’n Roll.adf” from Gamebase Amiga, chose the preset A500 config, and changed the Blitter setting to Normal.
- *Sprite Collisions:* Some games require sprite-to-sprite collisions. Sprite collisions can be turned on in the “more options” menu. The only game I know of that requires this is SpaceTaxi 3.
- *Savestates:* Four regular savestates can be saved per game. There’s also a slot for an automatic savestate, labeled “auto”. If it exists, this will be loaded immediately when the .adf is inserted. To prevent this, delete the auto savestate by selecting it and choosing “delete savestate”.
- *Multiplayer:* Up to four controllers on Vita TV are supported and can be fully mapped. The mouse can be switched off because it interferes with the other joystick that controls player 2 in most games. If you pair new controllers and they do not seem to work, scan for them in the “custom controls” menu by pressing L. At the bottom it will say how many controllers have been found. By default, parallel port Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.
- *Sound:* For use with headphones, a stereo separation setting of 50 sounds better than the default setting of 100. The original Amiga had completely disjoint left/right channels. This can sound quite jarring on headphones. Concerning sound frequency, on the Vita, the default of 44.1 kHz gives by far the best results. On the Switch, the best sound is obtained with 48 kHz, which is the only frequency supported on Switch.

Compiling
======
* Dependencies: SDL2, SDL2_image, libpng, libjpeg, zlib
* Clone repo into a folder somewhere
* Vita:
* Install VitaSDK toolchain and all vdpm packages: http://vitasdk.org
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_PSP2=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2.vpk
“`
* Note: The Vita source depends on FrangarCJ’s Vita2d fbo branch with shader support here: https://github.com/Cpasjuste/vita2dlib/tree/fbo
and FrangarCJ’s vita-shader-collection gtu branch: https://github.com/frangarcj/vita-shader-collection/tree/gtu
Those are both included as binaries and linked automatically.

* Switch:
* Install DevkitPro: https://devkitpro.org/wiki/devkitPro_pacman#Using_Pacman
* Install required libs:
“`
sudo (dkp-)pacman -S switch-dev
sudo -E dkp-pacman -S switch-sdl2
sudo -E dkp-pacman -S switch-sdl2_image
sudo -E dkp-pacman -S switch-glm
sudo -E dkp-pacman -S switch-glad
sudo -E dkp-pacman -S switch-mesa
sudo -E dkp-pacman -S switch-libpng
sudo -E dkp-pacman -S switch-zlib
sudo -E dkp-pacman -S switch-libjpeg-turbo
sudo -E dkp-pacman -S switch-libdrm-nouveau
“`
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_NX=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2_switch.zip
“`
* Unzip and copy all all files to Switch so you have `/switch/uae4all2/uae4all2.nro` and `/switch/uae4all2/data/` etc. on your SD card
* Launch using your favorite homebrew launcher

FAQ
=====
* Kickstart rom files not found on startup?

First, please ensure you are using the correct files. They should be “kick13.rom” (size: 262,144 bytes), “kick20.rom” (size: 524,288) and “kick31.rom” (size: 524,288). They should be placed in “”ux0:/data/uae4all/kickstarts” Second, please make sure your ux0:/data folder does NOT have the FAT attributes “hidden” or “system” set.

* Black screen on Switch, or crash on startup?

In my testing (only with exFAT), I found that exFAT corruption can cause all files in the uae4all2 folder to become corrupted (among others). This includes kick13.rom and other kickstart files, which causes a black screen when leaving the menu. Game .adf files can become corrupted, causing the game to stop booting. Even the executable uae4all2.nro and/or config files in the conf folder can become corrupted quite easily, causing black screen crash on startup. Either don’t use exFAT, or make a good backup of the folder and restore it via FTP if there are problems.

Controls
=====

Switch:
—–
Switch uses exactly the same controls as the Vita, with the following meaning:
Square = Y
Triangle = X
Cross = B
Circle = A
Start = Plus
Select = Minus

General
—–
Select = Toggle menu
Start = Toggle virtual keyboard
R+Start+Dpad up/down = Move screen up/down
R+Start+Dpad left/right = Change screenmode (to zoom in on games with borders)
Right analog stick = Analog mouse (can switch this to left stick in menu)
Left analog stick = Amiga joystick directions
Dpad = Amiga joystick directions

When custom controls are off
—–
L shoulder button = right mouse click
R shoulder button = left mouse click
(Shown below are control presets 1 (default) / 2 / 3 / 4)
Square = Autofire (default) / Fire / Autofire / Fire
Cross = Fire (default) / Autofire / Up (Jump) / Up (Jump)
Triangle = Space (default) / Space / Fire / Autofire
Circle = Secondary Fire (used only in a few games)
R+Square = Ctrl
R+Circle = Left Alt
R+Cross = Help
L+Square = Left mouse
L+Circle = Right mouse
R+Dpad = Arrow keys

When custom controls are on
—–
L+Start = Toggle between custom control set number 1, 2, and 3

In this mode, Vita buttons can be mapped to any Amiga side keyboard key or joystick action. There’s also a mapping option called “slow mouse.” It will slow down the mouse pointer by a factor ten if that mapped button is held down. Up to four Vita controllers can be mapped (for multiplayer on VitaTV). Four Amiga-side joysticks are supported. Joystick 3 and 4 are on the emulated parallel port joystick adapter.

Virtual keyboard controls
—–
Start = Toggle virtual keyboard
Right analog stick up/down = Move virtual keyboard up and down
Right analog stick left/right = Change virtual keyboard transparency
Cross = Press selected key
Square = Backspace
Triangle = Toggle shift
Circle = Turn off all sticky keys (ctrl, alt, amiga, and shift)

Touch controls
—–
Note: for multi-touch gestures, the fingers have to be far enough apart from each other, so that the Vita will not erroneously recognize them as a single finger. Otherwise the pointer will jump around.

Single short tap = left mouse click
Single short tap while holding a second finger down = right mouse click
Single finger drag = move the mouse pointer, how far the pointer moves in response to finger motion depends on the Mouse Speed setting
Dual finger drag = drag’n'drop (left mouse button is held down)
Three finger drag = drag’n'drop (right mouse button is held down)

Bluetooth Keyboard / Mouse controls
—–
Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP,” and with the “Jelly Comb Bluetooth Wireless Mouse ASIN:B075HBDWCF.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down. The Vita doesn’t pair with all Bluetooth keyboards and mice. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All.

CHANGELOG
=====
1.73 (Switch only)

- Fix savestates on Switch

1.72switch

- Added Switch release

1.72

- Savestate location can now be changed in the menu

- Savestates can now be deleted from the menu

- Implemented an automatic savestate. There’s a new savestate slot called auto. If it exists, this savestate will be loaded immediately when inserting a floppy.

1.71

- Fix hd settings not saving, and displayline settings not loading in certain situations

1.70

- Improve pointer response to diagonal stick directions

1.69

- Improve pointer response to slow finger motion

1.68

- Parallel port joystick adapter support. By default, Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.

1.67

- Improve pointer controls with bluetooth mouse by re-compiling with latest SDL-Vita

1.66

- Prevent accidental clicks when moving pointer using touch

1.65

- eliminate transparent keyboard slowdown
- fix joystick port setting affecting custom controls unless set to ‘port1′

1.64

- improved ‘normal’ blitter mode (fixes flicker in PP Hammer and Spindizzy Worlds)

1.63
- implemented three-finger drag as right-button drag (useful to hold-down the right mouse button). Fingers have to be somewhat apart from each other, otherwise they are recognized as single or dual touch by the Vita.

1.62
- re-compiled in safe-mode
- fix empty directory listing of uma0:

1.61
- re-compiled in unsafe-mode

1.60
- support for uma0: added
- prevent suspend mode because it can corrupt hdf files

1.59
- implemented touchpad-style pointer controls. Touch controls are configured under ‘More Options/Touch.’ Choices are ‘Touch Off’, ‘Front only’, or ‘Front and Back.’ The default is to use only the front panel. Both panels work the same, using relative touch mode. How far a certain finger motion moves the pointer depends on the Mouse Speed setting, which also affects how fast the analog stick moves the mouse.

1.58
- fix ‘movec pcr,d0′ not throwing exception on 68020 (fixes WHDload 18.3)
- recompiled with latest SDL library supporting full analog joystick range

1.57
- sticky virtual keyboard keys implemented. The alt, ctrl, amiga, and shift virtual keyboard keys are now sticky. Press them once to enable and another time to let go of the key. Key combos like “Amiga-Q” can now be entered using the virtual keyboard. The circle button quickly un-sticks all keys.

1.56
- fix keys being pressed when pressing Vita buttons (introduced in 1.55)

1.55
- support for Bluetooth keyboard and mouse added. The Vita doesn’t pair with all Bluetooth keyboard/mouse combos. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All. Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down.

1.54
- more choices for setting mouse speeds in steps of 0.25 now
- a button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.

1.53
- fix analog stick angular zone sizes (22.5 degrees per half zone now e.g. eight 45 degree zones)

1.52
- improved joystick diagonals and deadzone when controlling the Amiga joystick with Vita analog stick. The joystick analog-to-digital conversion is now done using a proper radial deadzone with eight symmetric angular zones for the possible directions.

1.51
- fix autofire for ply 2 w/o custom controls

1.50
- fix improved analog deadzone (broken in last release)

1.49
- improved analog mouse deadzone (radial and scaled)

1.48
- cleaned up display menu
- added option to choose menu background

1.47
- new menu background
- fix swapped “Quote”"Backquote” overlay keyboard keys

1.46
- never save autofire button to reduce confusion
- fixed menu navigation bug in HDF file selection

1.45
- added option to use autofire with custom configs, can choose one Vita button that will have autofire, or set it to ‘none’ (default) to turn it off

1.44
- improved contrast of virtual keyboard overlays (thanks to ScHlAuChi for new images)
- added option to choose between US, UK and German virtual keyboard overlay (thanks to ScHlAuChi for new images)

1.43
- full support for up to 4 controllers on Vita TV that can be fully mapped individually
- filelists (adf, hdf, etc) are now sorted alphabetically with directories at the top
- added option to turn off mouse emulation because it often interferes with second player (port 0 joystick) when playing multiplayer on the Vita TV
- added option to turn on sprite-sprite collisions, useful for Spacetaxi 3
- changed blitter default to “immediate” it seems to be more compatible

1.42
- added two player support on Vita TV, second paired Dualshock controller controls the ‘other’ joystick, only works if port is not set to ‘both’
- fixed a crash bug when changing audio parameters while sound was playing

1.41
- assembler optimizations enabled by Cpasjuste, emulator is faster now!

1.40
- disabled the menu entries ’screenwidth’ and ’stylus offset’ that did nothing on the Vita. To show the borders in overscan games like Settlers, simply use the menu option ‘Preset Width’ and set it to >320 for lores, (or >640 for hires). There are choices 352, 384, 704 and 768 that cover the full overscan range.

1.39
- fix sound setting changes not being applied until restart
- fix sound distortion for stereo separation settings 0 (mono) and 25%

1.38
- added stereo separation setting to select between 0 (mono) 25%, 50%, 75% and 100% (stereo, default, original Amiga sound)
- added the blitter options ‘normal, immediate, and improved’ default is ‘normal.’ Might help with some games

1.37
- some fixes to savestates. Now savestates work even with no disk inserted in df0. Savestate file name is now the first available name among df0, boot-hd, hdf2, hdf3, hdf4, df1, df2, df3.

1.36
- added measures to prevent file corruption: Disabled PS button because it caused corruption of hdf files; display a warning about file corruption if the Amiga is writing to hdf while the user tries to exit the program
- fix hdf size checking
- fixed up some menu text
- adjusted quickswitch screenmodes by two pixels

1.35
- now upto four hdf files can be mounted. From my own testing, it looks like 2 Gb is the hdf size limit. Geometry for each file can be changed by manually editing the config file, default is sectors:surfaces:reserved:blocksize=32:1:2:512 for files 1Gb and 32:4:2:512 for files >2Gb. Only files <=2 Gb seem to work.

1.34
- hires support (e.g. 640*256), switchable in display menu. (Select a screen mode with “640″ as width in the first option of the display menu, and the Workbench will be rendered with every pixel. A width of “320″ reverts back to old behavior.)

1.33
- implemented three fully mappable custom configs, configurable in controls menu. Quick switch between them using “L+Start”
- allow the “other joystick” to be mapped in custom controls to the Dpad or any buttons. This only works if ports is not set to “both”. Works great for Llamatron in dual joystick mode!

1.32
- virtual keyboard transparency adjust now toggles between four values, two of which cause zero slow-down when keyboard is displayed.
- resolution/zoom quick switch with R+Start+Dpad left/right is now more responsive

1.31
- Allow menu quit from within sub-menus using ’select’

1.30
- updated autocentering of analog sticks so that both sticks are always auto-centered, not just the one that controls the mouse

1.29
- Changed controls. The virtual keyboard is too useful to put it on an obscure combo. Start Button now toggles the virtual keyboard. When keyboard is active, right analog stick then controls the keyboard’s vertical position and transparency. When keyboard is off, use R+Start+Dpad to move screen up and down and to quick switch between common resolutions. This used to be just Start+Dpad. Now it is R+Start+Dpad.

1.28
- bugfix: the virtual keyboard sometimes sent joystick button presses to the emulator when selecting keys. This has been fixed.

1.27
- virtual keyboard hotkeys added, square = backspace, triangle = toggle shift
- virtual keyboard controls are now more responsive

1.26
- virtual keyboard transparency is now adjustable (START+dpad left/right)
- fixed bug in virtual keyboard initialization where the keyboard send an endless string of ‘ symbols on boot up before it was first opened

1.25
- vastly improved virtual keyboard: The image is now bigger, supports more keys including the shift modifier, and is transparent (thanks to ScHlAuChi for the new keyboard image and many ideas)
- Fixed virtual keyboard not reacting when custom dpad mode was active
- The virtual keyboard can now be moved up and down using start+dpad up and start + dpad down.

1.24
- virtual keyboard (mapped to “hold start then press select”)
- labels in custom control menu now reflect Vita controller
- default analog mouse control deadzone increased from 100 to 1000 to fix mouse pointer drift (can be changed in menu)
- default joystick port set to 1, since the mouse is always on (can be changed in menu)

1.23
- added analog joystick deadzone setting
- implemented autocentering to fix mouse pointer drift on some Vitas. Centering happens on program start and whenever the menu is opened
- START+DPAD left/right for quick switching between different zoomed screenmodes, useful for games like Chaos Engine. Use START+DPAD up/down to center screen after quick switching.

1.22
- fixed broken analog mouse control dead zone and improved mouse analog sensitivity

1.21
- moved shader config to display menu

1.20:
- added analog mouse support with menu option to choose left or right stick for mouse control
- new menu items in misc menu:
shader choice (default: sharp_bilinear_simple)
choice which analog stick to use for mouse
- disabled broken gp2x stylus mode and mouse emu mode
- L/R are mouse buttons now
- screen movement switched from L+R+DPAD to START+DPAD
- START does not switch input modes anymore (mouse is always enabled)
- updated Readme.txt with new Vita control scheme
- fixed misc menu entries for shader and analog mouse
- custom controls menu is now more snappy

<1.20:
- perfect 2x scaling support to reduce pixel wobble
- HD Dir fix (supports one HD Dir & one HDF simultaneously, but max hdf size is still 1 Gb)
- Shader support implemented by Cpasjuste

Download Uae4All2 Vita_mod from the Brewology PSVita Store.

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Uae4All2 Vita_mod rsn8887 has released Uae4All2 Vita_mod version 1.73 for the PSVita.

Changes in this Version
======
1.73 (Switch only)

- Fix savestates on Switch

Description
=====
Use4All2 Mod is an Amiga emulator for Vita and Switch. This is my mod of this great Amiga emulator that was originally ported to the Vita by Cpasjuste. Depending on when you read this, this mod might be ahead or behind his version.

![Screenshot of UAE4All2 Vita/Switch_mod](https://s14.postimg.cc/lzgf1988h/uae4all_b.jpg)

Thanks to Cpasjuste for the original port and for jumping in and adding shader support and making the assembler optimizations work.

Thanks to ScHlAuChi for extensive testing, ideas, and for contributing the new larger virtual keyboard images.

Thanks to the original authors Chui, john4p, TomB, notaz, Bernd Schneider, Toni Wilen, Pickle, smoku, AnotherGuest, Anonymous engineer, finkel, Lubomyr, pelya and many more.

Thanks to my supporters on Patreon: Andyways, CountDuckula, Matthew Machnee, and Sean Ritzo.

Installation
======
* Vita:
* Install .vpk
* Obtain and copy BIOS files “kick13.rom”, “kick20.rom” and “kick31.rom” to “ux0:/data/uae4all/kickstarts”

* Switch:
* Download and unzip `uae4all2_switch.zip`
* Copy the resulting folder `uae4all2` to `/switch/` onto your SDCard, ensure none of the “archive” flags is set.
* You should now have the executable `/switch/uae4all2/uae4all2.nro` and a folder `/switch/uae4all2/data/` with the keyboard icons and other data files on your SDCard.
* Obtain and copy BIOS files `kick13.rom` (size: 262,144 bytes), `kick20.rom` (size: 524,288 bytes) and `kick31.rom` (size: 524,288 bytes) to your SDCard into `/switch/uae4all2/kickstarts/`
* Use your favorite Homebrew Launcher or Homebrew Loader to start Uaeall2

Vita/Switch-exclusive Features
======
- Full speed emulation of most Amiga games with zero frameskip
- Large, complete virtual keyboard with adjustable position and adjustable transparency
- Three fully mappable custom control sets: map Vita buttons to any Amiga joystick or key input, three custom control sets supported
- Multiple hard-file support: up to 4 hdf files (size <2GB each) can be mounted simultaneously
- Multiple controller support on Vita TV: up to four paired controllers can be fully mapped
- Analog mouse control: control the mouse using the analog stick with adjustable sensitivity
- Custom autofire: any mapped Vita button can have autofire with adjustable rate
- Savestate with hard-file support: state can be saved even when hard-files are used
- Additional emulator settings: sprite-sprite collisions can be enabled, blitter settings can be changed
- Adjustable stereo separation
- A button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.
- Sticky virtual keyboard modifiers: allows keyboard combos like CTRL-C to be entered easily
- Touchpad style pointer controls using the touchscreen
- Parallel port joystick adapter support for multiplayer games with up to 4 joysticks.
- Additional savestate slot called auto, for automatic savestate loading

Vita-exclusive Features
======
- Shader support: default “sharp_bilinear_simple” uses integer pre-scale for sharp, undistorted pixels with minimum blur, even if game is zoomed to fill the full Vita screen.
- Bluetooth keyboard and mouse support
- Supports loading files from ux0: or uma0: partition
- Rear touch panel can be enabled for mouse pointer control

Switch-exclusive Features
======
- On the Switch, there’s no shader support yet. But the Switch resolution is high enough for perfect integer scaling with factor 3x if displayed lines is not larger than 240 and width is not larger than 426. Filtering can be set to “Bilinear” or “None”. When “Bilinear” is selected, the screen is scaled to fill the Vita display, keeping aspect ratio. No black bars on top and bottom appear. The image can be quickly zoomed using “R+Start+left/right” and vertically adjusted using “R+Start+up/down” to center it. When “None” is selected, only a perfect integer scaling is applied. Depending on the chosen Amiga screenmode, the integer scaling will be a 1x, 2x, 3x, or in principle even 4x, depending on whether the scaled Amiga screen fits. In most cases, this results in black bars on top and bottom as well as left and right.

Notes
======
- *Bios:* Please put kickstart files in `ux0:/data/uae4all/kickstarts` on Vita and in `/switch/uae4all2/kickstarts` directory on Switch. Files must be named as kick13.rom, kick20.rom, kick31.rom
- *Speed:* Most games run full speed. Some slow Amiga 1200 and WHDLoad games actually run faster if the CPU speed is reduced from 14 MHz to 7 MHz, because they rely more on custom chips than CPU. Some graphics glitches in Lionheart WHDLoad inside the caves are fixed by this.
- *Config File:* If you have problems with settings not saving etc, please delete or rename your config file in the folder `ux0:/data/uae4all` (Vita) or `/switch/uae4all2/conf/` and restart the emu. I heard this can fix many problems when you are replacing an older version of this emulator with a newer version. Lots of things are changing in the config file between releases.
- *Display on Vita:* On the Vita, the sharp_bilinear_simple shader, on by default, creates a sharp pixel image with minimal blurring. It applies a maximum integer pre-scale first. Then it scales only the small remainder using the builtin bilinear filter, keeping the aspect ratio intact.
- *Display on Switch:* On Switch, there is no shader support yet. But the 720p resolution on Switch allows 3* integer scaling as long as the displayed lines are <=240 and width is <426. This can be selected in the display menu under `shader`. There are two settings: `None (perfect integer scaling)` with black bars on top and bottom, or `bilinear (a little blurry)`, without black bars on top and bottom.
- *Screen settings:* Many Amiga games fit the screen very nicely. For example, take Chaos Engine with a screen setting of 320*200 and sharp_bilinear_simple shader enabled (or bilinear on Switch). The picture can be zoomed using R+Start+Dpad left/right, and moved vertically using R+Start+Dpad up/down to center it on the screen. Once this is done, the picture fills almost the whole screen and looks amazing with no artifacts and, on Vita, almost no blurriness. The game runs smooth with zero frameskip.
Selecting a ‘Preset Width’ of 320, 352 or 384 (max overscan) results in lo-res screen emulation, good for most games, while 640, 704, or 768 results in hi-res screen emulation, good for use with Workbench or some text-based games.
- *Blitter:* The blitter settings can help with graphics glitches in some games. Since it seems to work best, “immediate” is the default. But some games require setting blitter to “normal” and re-booting to remove graphics glitches, for example PP Hammer, Spindizzy Worlds, and Shufflepuck Cafe.
- *WHDLoad:* If you have problems with a WHDLoad .hdf game, maybe try an .adf version of the same game. Rock’n Roll is one of a few games that work on UAE4All2 only using .adf files. It has graphics glitches and runs too fast in WHDLoad with .hdf. To make it work correctly, I loaded the “Rock’n Roll.adf” from Gamebase Amiga, chose the preset A500 config, and changed the Blitter setting to Normal.
- *Sprite Collisions:* Some games require sprite-to-sprite collisions. Sprite collisions can be turned on in the “more options” menu. The only game I know of that requires this is SpaceTaxi 3.
- *Savestates:* Four regular savestates can be saved per game. There’s also a slot for an automatic savestate, labeled “auto”. If it exists, this will be loaded immediately when the .adf is inserted. To prevent this, delete the auto savestate by selecting it and choosing “delete savestate”.
- *Multiplayer:* Up to four controllers on Vita TV are supported and can be fully mapped. The mouse can be switched off because it interferes with the other joystick that controls player 2 in most games. If you pair new controllers and they do not seem to work, scan for them in the “custom controls” menu by pressing L. At the bottom it will say how many controllers have been found. By default, parallel port Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.
- *Sound:* For use with headphones, a stereo separation setting of 50 sounds better than the default setting of 100. The original Amiga had completely disjoint left/right channels. This can sound quite jarring on headphones. Concerning sound frequency, on the Vita, the default of 44.1 kHz gives by far the best results. On the Switch, the best sound is obtained with 48 kHz, which is the only frequency supported on Switch.

Compiling
======
* Dependencies: SDL2, SDL2_image, libpng, libjpeg, zlib
* Clone repo into a folder somewhere
* Vita:
* Install VitaSDK toolchain and all vdpm packages: http://vitasdk.org
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_PSP2=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2.vpk
“`
* Note: The Vita source depends on FrangarCJ’s Vita2d fbo branch with shader support here: https://github.com/Cpasjuste/vita2dlib/tree/fbo
and FrangarCJ’s vita-shader-collection gtu branch: https://github.com/frangarcj/vita-shader-collection/tree/gtu
Those are both included as binaries and linked automatically.

* Switch:
* Install DevkitPro: https://devkitpro.org/wiki/devkitPro_pacman#Using_Pacman
* Install required libs:
“`
sudo (dkp-)pacman -S switch-dev
sudo -E dkp-pacman -S switch-sdl2
sudo -E dkp-pacman -S switch-sdl2_image
sudo -E dkp-pacman -S switch-glm
sudo -E dkp-pacman -S switch-glad
sudo -E dkp-pacman -S switch-mesa
sudo -E dkp-pacman -S switch-libpng
sudo -E dkp-pacman -S switch-zlib
sudo -E dkp-pacman -S switch-libjpeg-turbo
sudo -E dkp-pacman -S switch-libdrm-nouveau
“`
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_NX=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2_switch.zip
“`
* Unzip and copy all all files to Switch so you have `/switch/uae4all2/uae4all2.nro` and `/switch/uae4all2/data/` etc. on your SD card
* Launch using your favorite homebrew launcher

FAQ
=====
* Kickstart rom files not found on startup?

First, please ensure you are using the correct files. They should be “kick13.rom” (size: 262,144 bytes), “kick20.rom” (size: 524,288) and “kick31.rom” (size: 524,288). They should be placed in “”ux0:/data/uae4all/kickstarts” Second, please make sure your ux0:/data folder does NOT have the FAT attributes “hidden” or “system” set.

* Black screen on Switch, or crash on startup?

In my testing (only with exFAT), I found that exFAT corruption can cause all files in the uae4all2 folder to become corrupted (among others). This includes kick13.rom and other kickstart files, which causes a black screen when leaving the menu. Game .adf files can become corrupted, causing the game to stop booting. Even the executable uae4all2.nro and/or config files in the conf folder can become corrupted quite easily, causing black screen crash on startup. Either don’t use exFAT, or make a good backup of the folder and restore it via FTP if there are problems.

Controls
=====

Switch:
—–
Switch uses exactly the same controls as the Vita, with the following meaning:
Square = Y
Triangle = X
Cross = B
Circle = A
Start = Plus
Select = Minus

General
—–
Select = Toggle menu
Start = Toggle virtual keyboard
R+Start+Dpad up/down = Move screen up/down
R+Start+Dpad left/right = Change screenmode (to zoom in on games with borders)
Right analog stick = Analog mouse (can switch this to left stick in menu)
Left analog stick = Amiga joystick directions
Dpad = Amiga joystick directions

When custom controls are off
—–
L shoulder button = right mouse click
R shoulder button = left mouse click
(Shown below are control presets 1 (default) / 2 / 3 / 4)
Square = Autofire (default) / Fire / Autofire / Fire
Cross = Fire (default) / Autofire / Up (Jump) / Up (Jump)
Triangle = Space (default) / Space / Fire / Autofire
Circle = Secondary Fire (used only in a few games)
R+Square = Ctrl
R+Circle = Left Alt
R+Cross = Help
L+Square = Left mouse
L+Circle = Right mouse
R+Dpad = Arrow keys

When custom controls are on
—–
L+Start = Toggle between custom control set number 1, 2, and 3

In this mode, Vita buttons can be mapped to any Amiga side keyboard key or joystick action. There’s also a mapping option called “slow mouse.” It will slow down the mouse pointer by a factor ten if that mapped button is held down. Up to four Vita controllers can be mapped (for multiplayer on VitaTV). Four Amiga-side joysticks are supported. Joystick 3 and 4 are on the emulated parallel port joystick adapter.

Virtual keyboard controls
—–
Start = Toggle virtual keyboard
Right analog stick up/down = Move virtual keyboard up and down
Right analog stick left/right = Change virtual keyboard transparency
Cross = Press selected key
Square = Backspace
Triangle = Toggle shift
Circle = Turn off all sticky keys (ctrl, alt, amiga, and shift)

Touch controls
—–
Note: for multi-touch gestures, the fingers have to be far enough apart from each other, so that the Vita will not erroneously recognize them as a single finger. Otherwise the pointer will jump around.

Single short tap = left mouse click
Single short tap while holding a second finger down = right mouse click
Single finger drag = move the mouse pointer, how far the pointer moves in response to finger motion depends on the Mouse Speed setting
Dual finger drag = drag’n'drop (left mouse button is held down)
Three finger drag = drag’n'drop (right mouse button is held down)

Bluetooth Keyboard / Mouse controls
—–
Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP,” and with the “Jelly Comb Bluetooth Wireless Mouse ASIN:B075HBDWCF.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down. The Vita doesn’t pair with all Bluetooth keyboards and mice. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All.

CHANGELOG
=====
1.73 (Switch only)

- Fix savestates on Switch

1.72switch

- Added Switch release

1.72

- Savestate location can now be changed in the menu

- Savestates can now be deleted from the menu

- Implemented an automatic savestate. There’s a new savestate slot called auto. If it exists, this savestate will be loaded immediately when inserting a floppy.

1.71

- Fix hd settings not saving, and displayline settings not loading in certain situations

1.70

- Improve pointer response to diagonal stick directions

1.69

- Improve pointer response to slow finger motion

1.68

- Parallel port joystick adapter support. By default, Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.

1.67

- Improve pointer controls with bluetooth mouse by re-compiling with latest SDL-Vita

1.66

- Prevent accidental clicks when moving pointer using touch

1.65

- eliminate transparent keyboard slowdown
- fix joystick port setting affecting custom controls unless set to ‘port1′

1.64

- improved ‘normal’ blitter mode (fixes flicker in PP Hammer and Spindizzy Worlds)

1.63
- implemented three-finger drag as right-button drag (useful to hold-down the right mouse button). Fingers have to be somewhat apart from each other, otherwise they are recognized as single or dual touch by the Vita.

1.62
- re-compiled in safe-mode
- fix empty directory listing of uma0:

1.61
- re-compiled in unsafe-mode

1.60
- support for uma0: added
- prevent suspend mode because it can corrupt hdf files

1.59
- implemented touchpad-style pointer controls. Touch controls are configured under ‘More Options/Touch.’ Choices are ‘Touch Off’, ‘Front only’, or ‘Front and Back.’ The default is to use only the front panel. Both panels work the same, using relative touch mode. How far a certain finger motion moves the pointer depends on the Mouse Speed setting, which also affects how fast the analog stick moves the mouse.

1.58
- fix ‘movec pcr,d0′ not throwing exception on 68020 (fixes WHDload 18.3)
- recompiled with latest SDL library supporting full analog joystick range

1.57
- sticky virtual keyboard keys implemented. The alt, ctrl, amiga, and shift virtual keyboard keys are now sticky. Press them once to enable and another time to let go of the key. Key combos like “Amiga-Q” can now be entered using the virtual keyboard. The circle button quickly un-sticks all keys.

1.56
- fix keys being pressed when pressing Vita buttons (introduced in 1.55)

1.55
- support for Bluetooth keyboard and mouse added. The Vita doesn’t pair with all Bluetooth keyboard/mouse combos. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All. Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down.

1.54
- more choices for setting mouse speeds in steps of 0.25 now
- a button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.

1.53
- fix analog stick angular zone sizes (22.5 degrees per half zone now e.g. eight 45 degree zones)

1.52
- improved joystick diagonals and deadzone when controlling the Amiga joystick with Vita analog stick. The joystick analog-to-digital conversion is now done using a proper radial deadzone with eight symmetric angular zones for the possible directions.

1.51
- fix autofire for ply 2 w/o custom controls

1.50
- fix improved analog deadzone (broken in last release)

1.49
- improved analog mouse deadzone (radial and scaled)

1.48
- cleaned up display menu
- added option to choose menu background

1.47
- new menu background
- fix swapped “Quote”"Backquote” overlay keyboard keys

1.46
- never save autofire button to reduce confusion
- fixed menu navigation bug in HDF file selection

1.45
- added option to use autofire with custom configs, can choose one Vita button that will have autofire, or set it to ‘none’ (default) to turn it off

1.44
- improved contrast of virtual keyboard overlays (thanks to ScHlAuChi for new images)
- added option to choose between US, UK and German virtual keyboard overlay (thanks to ScHlAuChi for new images)

1.43
- full support for up to 4 controllers on Vita TV that can be fully mapped individually
- filelists (adf, hdf, etc) are now sorted alphabetically with directories at the top
- added option to turn off mouse emulation because it often interferes with second player (port 0 joystick) when playing multiplayer on the Vita TV
- added option to turn on sprite-sprite collisions, useful for Spacetaxi 3
- changed blitter default to “immediate” it seems to be more compatible

1.42
- added two player support on Vita TV, second paired Dualshock controller controls the ‘other’ joystick, only works if port is not set to ‘both’
- fixed a crash bug when changing audio parameters while sound was playing

1.41
- assembler optimizations enabled by Cpasjuste, emulator is faster now!

1.40
- disabled the menu entries ’screenwidth’ and ’stylus offset’ that did nothing on the Vita. To show the borders in overscan games like Settlers, simply use the menu option ‘Preset Width’ and set it to >320 for lores, (or >640 for hires). There are choices 352, 384, 704 and 768 that cover the full overscan range.

1.39
- fix sound setting changes not being applied until restart
- fix sound distortion for stereo separation settings 0 (mono) and 25%

1.38
- added stereo separation setting to select between 0 (mono) 25%, 50%, 75% and 100% (stereo, default, original Amiga sound)
- added the blitter options ‘normal, immediate, and improved’ default is ‘normal.’ Might help with some games

1.37
- some fixes to savestates. Now savestates work even with no disk inserted in df0. Savestate file name is now the first available name among df0, boot-hd, hdf2, hdf3, hdf4, df1, df2, df3.

1.36
- added measures to prevent file corruption: Disabled PS button because it caused corruption of hdf files; display a warning about file corruption if the Amiga is writing to hdf while the user tries to exit the program
- fix hdf size checking
- fixed up some menu text
- adjusted quickswitch screenmodes by two pixels

1.35
- now upto four hdf files can be mounted. From my own testing, it looks like 2 Gb is the hdf size limit. Geometry for each file can be changed by manually editing the config file, default is sectors:surfaces:reserved:blocksize=32:1:2:512 for files 1Gb and 32:4:2:512 for files >2Gb. Only files <=2 Gb seem to work.

1.34
- hires support (e.g. 640*256), switchable in display menu. (Select a screen mode with “640″ as width in the first option of the display menu, and the Workbench will be rendered with every pixel. A width of “320″ reverts back to old behavior.)

1.33
- implemented three fully mappable custom configs, configurable in controls menu. Quick switch between them using “L+Start”
- allow the “other joystick” to be mapped in custom controls to the Dpad or any buttons. This only works if ports is not set to “both”. Works great for Llamatron in dual joystick mode!

1.32
- virtual keyboard transparency adjust now toggles between four values, two of which cause zero slow-down when keyboard is displayed.
- resolution/zoom quick switch with R+Start+Dpad left/right is now more responsive

1.31
- Allow menu quit from within sub-menus using ’select’

1.30
- updated autocentering of analog sticks so that both sticks are always auto-centered, not just the one that controls the mouse

1.29
- Changed controls. The virtual keyboard is too useful to put it on an obscure combo. Start Button now toggles the virtual keyboard. When keyboard is active, right analog stick then controls the keyboard’s vertical position and transparency. When keyboard is off, use R+Start+Dpad to move screen up and down and to quick switch between common resolutions. This used to be just Start+Dpad. Now it is R+Start+Dpad.

1.28
- bugfix: the virtual keyboard sometimes sent joystick button presses to the emulator when selecting keys. This has been fixed.

1.27
- virtual keyboard hotkeys added, square = backspace, triangle = toggle shift
- virtual keyboard controls are now more responsive

1.26
- virtual keyboard transparency is now adjustable (START+dpad left/right)
- fixed bug in virtual keyboard initialization where the keyboard send an endless string of ‘ symbols on boot up before it was first opened

1.25
- vastly improved virtual keyboard: The image is now bigger, supports more keys including the shift modifier, and is transparent (thanks to ScHlAuChi for the new keyboard image and many ideas)
- Fixed virtual keyboard not reacting when custom dpad mode was active
- The virtual keyboard can now be moved up and down using start+dpad up and start + dpad down.

1.24
- virtual keyboard (mapped to “hold start then press select”)
- labels in custom control menu now reflect Vita controller
- default analog mouse control deadzone increased from 100 to 1000 to fix mouse pointer drift (can be changed in menu)
- default joystick port set to 1, since the mouse is always on (can be changed in menu)

1.23
- added analog joystick deadzone setting
- implemented autocentering to fix mouse pointer drift on some Vitas. Centering happens on program start and whenever the menu is opened
- START+DPAD left/right for quick switching between different zoomed screenmodes, useful for games like Chaos Engine. Use START+DPAD up/down to center screen after quick switching.

1.22
- fixed broken analog mouse control dead zone and improved mouse analog sensitivity

1.21
- moved shader config to display menu

1.20:
- added analog mouse support with menu option to choose left or right stick for mouse control
- new menu items in misc menu:
shader choice (default: sharp_bilinear_simple)
choice which analog stick to use for mouse
- disabled broken gp2x stylus mode and mouse emu mode
- L/R are mouse buttons now
- screen movement switched from L+R+DPAD to START+DPAD
- START does not switch input modes anymore (mouse is always enabled)
- updated Readme.txt with new Vita control scheme
- fixed misc menu entries for shader and analog mouse
- custom controls menu is now more snappy

<1.20:
- perfect 2x scaling support to reduce pixel wobble
- HD Dir fix (supports one HD Dir & one HDF simultaneously, but max hdf size is still 1 Gb)
- Shader support implemented by Cpasjuste

Download Uae4All2 Vita_mod from the Brewology PSVita Store.

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Uae4All2 Vita_mod rsn8887 has released Uae4All2 Vita_mod version 1.72switch for the PSVita.

Changes in this Version
======
1.72switch

- Added Switch release

Description
=====
Use4All2 Mod is an Amiga emulator for Vita and Switch. This is my mod of this great Amiga emulator that was originally ported to the Vita by Cpasjuste. Depending on when you read this, this mod might be ahead or behind his version.

![Screenshot of UAE4All2 Vita/Switch_mod](https://s14.postimg.cc/lzgf1988h/uae4all_b.jpg)

Thanks to Cpasjuste for the original port and for jumping in and adding shader support and making the assembler optimizations work.

Thanks to ScHlAuChi for extensive testing, ideas, and for contributing the new larger virtual keyboard images.

Thanks to the original authors Chui, john4p, TomB, notaz, Bernd Schneider, Toni Wilen, Pickle, smoku, AnotherGuest, Anonymous engineer, finkel, Lubomyr, pelya and many more.

Thanks to my supporters on Patreon: Andyways, CountDuckula, Matthew Machnee, and Sean Ritzo.

Installation
======
* Vita:
* Install .vpk
* Obtain and copy BIOS files “kick13.rom”, “kick20.rom” and “kick31.rom” to “ux0:/data/uae4all/kickstarts”

* Switch:
* Download and unzip `uae4all2_switch.zip`
* Copy the resulting folder `uae4all2` to `/switch/` onto your SDCard, ensure none of the “archive” flags is set.
* You should now have the executable `/switch/uae4all2/uae4all2.nro` and a folder `/switch/uae4all2/data/` with the keyboard icons and other data files on your SDCard.
* Obtain and copy BIOS files `kick13.rom` (size: 262,144 bytes), `kick20.rom` (size: 524,288 bytes) and `kick31.rom` (size: 524,288 bytes) to your SDCard into `/switch/uae4all2/kickstarts/`
* Use your favorite Homebrew Launcher or Homebrew Loader to start Uaeall2

Vita/Switch-exclusive Features
======
- Full speed emulation of most Amiga games with zero frameskip
- Large, complete virtual keyboard with adjustable position and adjustable transparency
- Three fully mappable custom control sets: map Vita buttons to any Amiga joystick or key input, three custom control sets supported
- Multiple hard-file support: up to 4 hdf files (size <2GB each) can be mounted simultaneously
- Multiple controller support on Vita TV: up to four paired controllers can be fully mapped
- Analog mouse control: control the mouse using the analog stick with adjustable sensitivity
- Custom autofire: any mapped Vita button can have autofire with adjustable rate
- Savestate with hard-file support: state can be saved even when hard-files are used
- Additional emulator settings: sprite-sprite collisions can be enabled, blitter settings can be changed
- Adjustable stereo separation
- A button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.
- Sticky virtual keyboard modifiers: allows keyboard combos like CTRL-C to be entered easily
- Touchpad style pointer controls using the front touch panel and (optional) the rear touch panel
- Supports loading files from ux0: or uma0: partition
- Parallel port joystick adapter support for multiplayer games with up to 4 joysticks.
- Additional savestate slot called auto, for automatic savestate loading

Vita-exclusive Features
======
- Shader support: default “sharp_bilinear_simple” uses integer pre-scale for sharp, undistorted pixels with minimum blur, even if game is zoomed to fill the full Vita screen.
- Bluetooth keyboard and mouse support

Switch-exclusive Features
======
- On the Switch, there’s no shader support yet. But the Switch resolution is high enough for perfect integer scaling with factors >2x. Filtering can be set to “Bilinear” or “None”. When “Bilinear” is selected, the screen is scaled to fill the Vita display, keeping aspect ratio. When “None” is selected, only a perfect integer scaling is applied. Depending on the chosen Amiga screenmode, the integer scaling will be a 1x, 2x, 3x, or even 4x scaling, depending on whether the Amiga screen fits.

Notes
======
- *Bios:* Please put kickstart files in `ux0:/data/uae4all/kickstarts` on Vita and in `/switch/uae4all2/kickstarts` directory on Switch. Files must be named as kick13.rom, kick20.rom, kick31.rom
- *Speed:* Most games run full speed. Some slow Amiga 1200 and WHDLoad games actually run faster if the CPU speed is reduced from 14 MHz to 7 MHz, because they rely more on custom chips than CPU. Some graphics glitches in Lionheart WHDLoad inside the caves are fixed by this.
- *Config File:* If you have problems with settings not saving etc, please delete or rename your config file in the folder `ux0:/data/uae4all` (Vita) or `/switch/uae4all2/conf/` and restart the emu. I heard this can fix many problems when you are replacing an older version of this emulator with a newer version. Lots of things are changing in the config file between releases.
- *Display on Vita:* On the Vita, the sharp_bilinear_simple shader, on by default, creates a sharp pixel image with minimal blurring. It applies a maximum integer pre-scale first. Then it scales only the small remainder using the builtin bilinear filter, keeping the aspect ratio intact.
Many Amiga games fit the screen very nicely. For example, take Chaos Engine with a screen setting of 320*200 and sharp_bilinear_simple shader enabled. The picture can be zoomed using R+Start+Dpad left/right, and moved vertically using R+Start+Dpad up/down to center it on the Vita screen. Once this is done, the picture fills almost the whole screen and looks amazing with no artifacts or blurriness. The game runs smooth with zero frameskip.
Selecting a ‘Preset Width’ of 320, 352 or 384 (max overscan) results in lo-res screen emulation, good for most games, while 640, 704, or 768 results in hi-res screen emulation, good for use with Workbench or some text-based games.
- *Display on Switch:* On Switch, there is no shader support yet. But the 720p resolution on Switch allows 3* integer scaling in many cases, which can be selected in the display menu under `shader`. There are two settings: `None (perfect integer scaling)` or `bilinear (quite blurry)`.
- *Blitter:* The blitter settings can help with graphics glitches in some games. Since it seems to work best, “immediate” is the default. But some games require setting blitter to “normal” and re-booting to remove graphics glitches, for example PP Hammer, Spindizzy Worlds, and Shufflepuck Cafe.
- *WHDLoad:* If you have problems with a WHDLoad .hdf game, maybe try an .adf version of the same game. Rock’n Roll is one of a few games that work on UAE4All2 only using .adf files. It has graphics glitches and runs too fast in WHDLoad with .hdf. To make it work correctly, I loaded the “Rock’n Roll.adf” from Gamebase Amiga, chose the preset A500 config, and changed the Blitter setting to Normal.
- *Sprite Collisions:* Some games require sprite-to-sprite collisions. Sprite collisions can be turned on in the “more options” menu. The only game I know of that requires this is SpaceTaxi 3.
- *Savestates:* Four regular savestates can be saved per game. There’s also a slot for an automatic savestate, labeled “auto”. If it exists, this will be loaded immediately when the .adf is inserted. To prevent this, delete the auto savestate by selecting it and choosing “delete savestate”.
- *Multiplayer:* Up to four controllers on Vita TV are supported and can be fully mapped. The mouse can be switched off because it interferes with the other joystick that controls player 2 in most games. If you pair new controllers and they do not seem to work, scan for them in the “custom controls” menu by pressing L. At the bottom it will say how many controllers have been found. By default, parallel port Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.
- *Sound:* For use with headphones, a stereo separation setting of 50 sounds better than the default setting of 100. The original Amiga had completely disjoint left/right channels. This can sound quite jarring on headphones. Concerning sound frequency, on the Vita, the default of 44.1 kHz gives by far the best results. On the Switch, the best sound is obtained with 48 kHz, which is the only frequency supported on Switch.

Compiling
======
* Dependencies: SDL2, SDL2_image, libpng, libjpeg, zlib
* Clone repo into a folder somewhere
* Vita:
* Install VitaSDK toolchain and all vdpm packages: http://vitasdk.org
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_PSP2=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2.vpk
“`
* Note: The Vita source depends on FrangarCJ’s Vita2d fbo branch with shader support here: https://github.com/Cpasjuste/vita2dlib/tree/fbo
and FrangarCJ’s vita-shader-collection gtu branch: https://github.com/frangarcj/vita-shader-collection/tree/gtu
Those are both included as binaries and linked automatically.

* Switch:
* Install DevkitPro: https://devkitpro.org/wiki/devkitPro_pacman#Using_Pacman
* Install required libs:
“`
sudo (dkp-)pacman -S switch-dev
sudo -E dkp-pacman -S switch-sdl2
sudo -E dkp-pacman -S switch-sdl2_image
sudo -E dkp-pacman -S switch-glm
sudo -E dkp-pacman -S switch-glad
sudo -E dkp-pacman -S switch-mesa
sudo -E dkp-pacman -S switch-libpng
sudo -E dkp-pacman -S switch-zlib
sudo -E dkp-pacman -S switch-libjpeg-turbo
sudo -E dkp-pacman -S switch-libdrm-nouveau
“`
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_NX=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2_switch.zip
“`
* Unzip and copy all all files to Switch so you have `/switch/uae4all2/uae4all2.nro` and `/switch/uae4all2/data/` etc. on your SD card
* Launch using your favorite homebrew launcher

FAQ
=====
* Kickstart rom files not found on startup?

First, please ensure you are using the correct files. They should be “kick13.rom” (size: 262,144 bytes), “kick20.rom” (size: 524,288) and “kick31.rom” (size: 524,288). They should be placed in “”ux0:/data/uae4all/kickstarts” Second, please make sure your ux0:/data folder does NOT have the FAT attributes “hidden” or “system” set.

* Black screen on Switch, or crash on startup?

In my testing (only with exFAT), I found that exFAT corruption can cause all files in the uae4all2 folder to become corrupted (among others). This includes kick13.rom and other kickstart files, which causes a black screen when leaving the menu. Game .adf files can become corrupted, causing the game to stop booting. Even the executable uae4all2.nro and/or config files in the conf folder can become corrupted quite easily, causing black screen crash on startup. Either don’t use exFAT, or make a good backup of the folder and restore it via FTP if there are problems.

Controls
=====

Switch:
—–
Switch uses exactly the same controls as the Vita, with the following meaning:
Square = Y
Triangle = X
Cross = B
Circle = A
Start = Plus
Select = Minus

General
—–
Select = Toggle menu
Start = Toggle virtual keyboard
R+Start+Dpad up/down = Move screen up/down
R+Start+Dpad left/right = Change screenmode (to zoom in on games with borders)
Right analog stick = Analog mouse (can switch this to left stick in menu)
Left analog stick = Amiga joystick directions
Dpad = Amiga joystick directions

When custom controls are off
—–
L shoulder button = right mouse click
R shoulder button = left mouse click
(Shown below are control presets 1 (default) / 2 / 3 / 4)
Square = Autofire (default) / Fire / Autofire / Fire
Cross = Fire (default) / Autofire / Up (Jump) / Up (Jump)
Triangle = Space (default) / Space / Fire / Autofire
Circle = Secondary Fire (used only in a few games)
R+Square = Ctrl
R+Circle = Left Alt
R+Cross = Help
L+Square = Left mouse
L+Circle = Right mouse
R+Dpad = Arrow keys

When custom controls are on
—–
L+Start = Toggle between custom control set number 1, 2, and 3

In this mode, Vita buttons can be mapped to any Amiga side keyboard key or joystick action. There’s also a mapping option called “slow mouse.” It will slow down the mouse pointer by a factor ten if that mapped button is held down. Up to four Vita controllers can be mapped (for multiplayer on VitaTV). Four Amiga-side joysticks are supported. Joystick 3 and 4 are on the emulated parallel port joystick adapter.

Virtual keyboard controls
—–
Start = Toggle virtual keyboard
Right analog stick up/down = Move virtual keyboard up and down
Right analog stick left/right = Change virtual keyboard transparency
Cross = Press selected key
Square = Backspace
Triangle = Toggle shift
Circle = Turn off all sticky keys (ctrl, alt, amiga, and shift)

Touch controls
—–
Note: for multi-touch gestures, the fingers have to be far enough apart from each other, so that the Vita will not erroneously recognize them as a single finger. Otherwise the pointer will jump around.

Single short tap = left mouse click
Single short tap while holding a second finger down = right mouse click
Single finger drag = move the mouse pointer, how far the pointer moves in response to finger motion depends on the Mouse Speed setting
Dual finger drag = drag’n'drop (left mouse button is held down)
Three finger drag = drag’n'drop (right mouse button is held down)

Bluetooth Keyboard / Mouse controls
—–
Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP,” and with the “Jelly Comb Bluetooth Wireless Mouse ASIN:B075HBDWCF.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down. The Vita doesn’t pair with all Bluetooth keyboards and mice. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All.

CHANGELOG
=====
1.72switch

- Added Switch release

1.72

- Savestate location can now be changed in the menu

- Savestates can now be deleted from the menu

- Implemented an automatic savestate. There’s a new savestate slot called auto. If it exists, this savestate will be loaded immediately when inserting a floppy.

1.71

- Fix hd settings not saving, and displayline settings not loading in certain situations

1.70

- Improve pointer response to diagonal stick directions

1.69

- Improve pointer response to slow finger motion

1.68

- Parallel port joystick adapter support. By default, Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.

1.67

- Improve pointer controls with bluetooth mouse by re-compiling with latest SDL-Vita

1.66

- Prevent accidental clicks when moving pointer using touch

1.65

- eliminate transparent keyboard slowdown
- fix joystick port setting affecting custom controls unless set to ‘port1′

1.64

- improved ‘normal’ blitter mode (fixes flicker in PP Hammer and Spindizzy Worlds)

1.63
- implemented three-finger drag as right-button drag (useful to hold-down the right mouse button). Fingers have to be somewhat apart from each other, otherwise they are recognized as single or dual touch by the Vita.

1.62
- re-compiled in safe-mode
- fix empty directory listing of uma0:

1.61
- re-compiled in unsafe-mode

1.60
- support for uma0: added
- prevent suspend mode because it can corrupt hdf files

1.59
- implemented touchpad-style pointer controls. Touch controls are configured under ‘More Options/Touch.’ Choices are ‘Touch Off’, ‘Front only’, or ‘Front and Back.’ The default is to use only the front panel. Both panels work the same, using relative touch mode. How far a certain finger motion moves the pointer depends on the Mouse Speed setting, which also affects how fast the analog stick moves the mouse.

1.58
- fix ‘movec pcr,d0′ not throwing exception on 68020 (fixes WHDload 18.3)
- recompiled with latest SDL library supporting full analog joystick range

1.57
- sticky virtual keyboard keys implemented. The alt, ctrl, amiga, and shift virtual keyboard keys are now sticky. Press them once to enable and another time to let go of the key. Key combos like “Amiga-Q” can now be entered using the virtual keyboard. The circle button quickly un-sticks all keys.

1.56
- fix keys being pressed when pressing Vita buttons (introduced in 1.55)

1.55
- support for Bluetooth keyboard and mouse added. The Vita doesn’t pair with all Bluetooth keyboard/mouse combos. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All. Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down.

1.54
- more choices for setting mouse speeds in steps of 0.25 now
- a button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.

1.53
- fix analog stick angular zone sizes (22.5 degrees per half zone now e.g. eight 45 degree zones)

1.52
- improved joystick diagonals and deadzone when controlling the Amiga joystick with Vita analog stick. The joystick analog-to-digital conversion is now done using a proper radial deadzone with eight symmetric angular zones for the possible directions.

1.51
- fix autofire for ply 2 w/o custom controls

1.50
- fix improved analog deadzone (broken in last release)

1.49
- improved analog mouse deadzone (radial and scaled)

1.48
- cleaned up display menu
- added option to choose menu background

1.47
- new menu background
- fix swapped “Quote”"Backquote” overlay keyboard keys

1.46
- never save autofire button to reduce confusion
- fixed menu navigation bug in HDF file selection

1.45
- added option to use autofire with custom configs, can choose one Vita button that will have autofire, or set it to ‘none’ (default) to turn it off

1.44
- improved contrast of virtual keyboard overlays (thanks to ScHlAuChi for new images)
- added option to choose between US, UK and German virtual keyboard overlay (thanks to ScHlAuChi for new images)

1.43
- full support for up to 4 controllers on Vita TV that can be fully mapped individually
- filelists (adf, hdf, etc) are now sorted alphabetically with directories at the top
- added option to turn off mouse emulation because it often interferes with second player (port 0 joystick) when playing multiplayer on the Vita TV
- added option to turn on sprite-sprite collisions, useful for Spacetaxi 3
- changed blitter default to “immediate” it seems to be more compatible

1.42
- added two player support on Vita TV, second paired Dualshock controller controls the ‘other’ joystick, only works if port is not set to ‘both’
- fixed a crash bug when changing audio parameters while sound was playing

1.41
- assembler optimizations enabled by Cpasjuste, emulator is faster now!

1.40
- disabled the menu entries ’screenwidth’ and ’stylus offset’ that did nothing on the Vita. To show the borders in overscan games like Settlers, simply use the menu option ‘Preset Width’ and set it to >320 for lores, (or >640 for hires). There are choices 352, 384, 704 and 768 that cover the full overscan range.

1.39
- fix sound setting changes not being applied until restart
- fix sound distortion for stereo separation settings 0 (mono) and 25%

1.38
- added stereo separation setting to select between 0 (mono) 25%, 50%, 75% and 100% (stereo, default, original Amiga sound)
- added the blitter options ‘normal, immediate, and improved’ default is ‘normal.’ Might help with some games

1.37
- some fixes to savestates. Now savestates work even with no disk inserted in df0. Savestate file name is now the first available name among df0, boot-hd, hdf2, hdf3, hdf4, df1, df2, df3.

1.36
- added measures to prevent file corruption: Disabled PS button because it caused corruption of hdf files; display a warning about file corruption if the Amiga is writing to hdf while the user tries to exit the program
- fix hdf size checking
- fixed up some menu text
- adjusted quickswitch screenmodes by two pixels

1.35
- now upto four hdf files can be mounted. From my own testing, it looks like 2 Gb is the hdf size limit. Geometry for each file can be changed by manually editing the config file, default is sectors:surfaces:reserved:blocksize=32:1:2:512 for files 1Gb and 32:4:2:512 for files >2Gb. Only files <=2 Gb seem to work.

1.34
- hires support (e.g. 640*256), switchable in display menu. (Select a screen mode with “640″ as width in the first option of the display menu, and the Workbench will be rendered with every pixel. A width of “320″ reverts back to old behavior.)

1.33
- implemented three fully mappable custom configs, configurable in controls menu. Quick switch between them using “L+Start”
- allow the “other joystick” to be mapped in custom controls to the Dpad or any buttons. This only works if ports is not set to “both”. Works great for Llamatron in dual joystick mode!

1.32
- virtual keyboard transparency adjust now toggles between four values, two of which cause zero slow-down when keyboard is displayed.
- resolution/zoom quick switch with R+Start+Dpad left/right is now more responsive

1.31
- Allow menu quit from within sub-menus using ’select’

1.30
- updated autocentering of analog sticks so that both sticks are always auto-centered, not just the one that controls the mouse

1.29
- Changed controls. The virtual keyboard is too useful to put it on an obscure combo. Start Button now toggles the virtual keyboard. When keyboard is active, right analog stick then controls the keyboard’s vertical position and transparency. When keyboard is off, use R+Start+Dpad to move screen up and down and to quick switch between common resolutions. This used to be just Start+Dpad. Now it is R+Start+Dpad.

1.28
- bugfix: the virtual keyboard sometimes sent joystick button presses to the emulator when selecting keys. This has been fixed.

1.27
- virtual keyboard hotkeys added, square = backspace, triangle = toggle shift
- virtual keyboard controls are now more responsive

1.26
- virtual keyboard transparency is now adjustable (START+dpad left/right)
- fixed bug in virtual keyboard initialization where the keyboard send an endless string of ‘ symbols on boot up before it was first opened

1.25
- vastly improved virtual keyboard: The image is now bigger, supports more keys including the shift modifier, and is transparent (thanks to ScHlAuChi for the new keyboard image and many ideas)
- Fixed virtual keyboard not reacting when custom dpad mode was active
- The virtual keyboard can now be moved up and down using start+dpad up and start + dpad down.

1.24
- virtual keyboard (mapped to “hold start then press select”)
- labels in custom control menu now reflect Vita controller
- default analog mouse control deadzone increased from 100 to 1000 to fix mouse pointer drift (can be changed in menu)
- default joystick port set to 1, since the mouse is always on (can be changed in menu)

1.23
- added analog joystick deadzone setting
- implemented autocentering to fix mouse pointer drift on some Vitas. Centering happens on program start and whenever the menu is opened
- START+DPAD left/right for quick switching between different zoomed screenmodes, useful for games like Chaos Engine. Use START+DPAD up/down to center screen after quick switching.

1.22
- fixed broken analog mouse control dead zone and improved mouse analog sensitivity

1.21
- moved shader config to display menu

1.20:
- added analog mouse support with menu option to choose left or right stick for mouse control
- new menu items in misc menu:
shader choice (default: sharp_bilinear_simple)
choice which analog stick to use for mouse
- disabled broken gp2x stylus mode and mouse emu mode
- L/R are mouse buttons now
- screen movement switched from L+R+DPAD to START+DPAD
- START does not switch input modes anymore (mouse is always enabled)
- updated Readme.txt with new Vita control scheme
- fixed misc menu entries for shader and analog mouse
- custom controls menu is now more snappy

<1.20:
- perfect 2x scaling support to reduce pixel wobble
- HD Dir fix (supports one HD Dir & one HDF simultaneously, but max hdf size is still 1 Gb)
- Shader support implemented by Cpasjuste

Download Uae4All2 Vita_mod from the Brewology PSVita Store.

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Uae4All2 Vita_mod rsn8887 has released Uae4All2 Vita_mod version 1.72switch for the PSVita.

Changes in this Version
======
1.72switch

- Added Switch release

Description
=====
Use4All2 Mod is an Amiga emulator for Vita and Switch. This is my mod of this great Amiga emulator that was originally ported to the Vita by Cpasjuste. Depending on when you read this, this mod might be ahead or behind his version.

![Screenshot of UAE4All2 Vita/Switch_mod](https://s14.postimg.cc/lzgf1988h/uae4all_b.jpg)

Thanks to Cpasjuste for the original port and for jumping in and adding shader support and making the assembler optimizations work.

Thanks to ScHlAuChi for extensive testing, ideas, and for contributing the new larger virtual keyboard images.

Thanks to the original authors Chui, john4p, TomB, notaz, Bernd Schneider, Toni Wilen, Pickle, smoku, AnotherGuest, Anonymous engineer, finkel, Lubomyr, pelya and many more.

Thanks to my supporters on Patreon: Andyways, CountDuckula, Matthew Machnee, and Sean Ritzo.

Installation
======
* Vita:
* Install .vpk
* Obtain and copy BIOS files “kick13.rom”, “kick20.rom” and “kick31.rom” to “ux0:/data/uae4all/kickstarts”

* Switch:
* Download and unzip `uae4all2_switch.zip`
* Copy the resulting folder `uae4all2` to `/switch/` onto your SDCard, ensure none of the “archive” flags is set.
* You should now have the executable `/switch/uae4all2/uae4all2.nro` and a folder `/switch/uae4all2/data/` with the keyboard icons and other data files on your SDCard.
* Obtain and copy BIOS files `kick13.rom` (size: 262,144 bytes), `kick20.rom` (size: 524,288 bytes) and `kick31.rom` (size: 524,288 bytes) to your SDCard into `/switch/uae4all2/kickstarts/`
* Use your favorite Homebrew Launcher or Homebrew Loader to start Uaeall2

Vita/Switch-exclusive Features
======
- Full speed emulation of most Amiga games with zero frameskip
- Large, complete virtual keyboard with adjustable position and adjustable transparency
- Three fully mappable custom control sets: map Vita buttons to any Amiga joystick or key input, three custom control sets supported
- Multiple hard-file support: up to 4 hdf files (size <2GB each) can be mounted simultaneously
- Multiple controller support on Vita TV: up to four paired controllers can be fully mapped
- Analog mouse control: control the mouse using the analog stick with adjustable sensitivity
- Custom autofire: any mapped Vita button can have autofire with adjustable rate
- Savestate with hard-file support: state can be saved even when hard-files are used
- Additional emulator settings: sprite-sprite collisions can be enabled, blitter settings can be changed
- Adjustable stereo separation
- A button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.
- Sticky virtual keyboard modifiers: allows keyboard combos like CTRL-C to be entered easily
- Touchpad style pointer controls using the front touch panel and (optional) the rear touch panel
- Supports loading files from ux0: or uma0: partition
- Parallel port joystick adapter support for multiplayer games with up to 4 joysticks.
- Additional savestate slot called auto, for automatic savestate loading

Vita-exclusive Features
======
- Shader support: default “sharp_bilinear_simple” uses integer pre-scale for sharp, undistorted pixels with minimum blur, even if game is zoomed to fill the full Vita screen.
- Bluetooth keyboard and mouse support

Switch-exclusive Features
======
- On the Switch, there’s no shader support yet. But the Switch resolution is high enough for perfect integer scaling with factors >2x. Filtering can be set to “Bilinear” or “None”. When “Bilinear” is selected, the screen is scaled to fill the Vita display, keeping aspect ratio. When “None” is selected, only a perfect integer scaling is applied. Depending on the chosen Amiga screenmode, the integer scaling will be a 1x, 2x, 3x, or even 4x scaling, depending on whether the Amiga screen fits.

Notes
======
- *Bios:* Please put kickstart files in `ux0:/data/uae4all/kickstarts` on Vita and in `/switch/uae4all2/kickstarts` directory on Switch. Files must be named as kick13.rom, kick20.rom, kick31.rom
- *Speed:* Most games run full speed. Some slow Amiga 1200 and WHDLoad games actually run faster if the CPU speed is reduced from 14 MHz to 7 MHz, because they rely more on custom chips than CPU. Some graphics glitches in Lionheart WHDLoad inside the caves are fixed by this.
- *Config File:* If you have problems with settings not saving etc, please delete or rename your config file in the folder `ux0:/data/uae4all` (Vita) or `/switch/uae4all2/conf/` and restart the emu. I heard this can fix many problems when you are replacing an older version of this emulator with a newer version. Lots of things are changing in the config file between releases.
- *Display on Vita:* On the Vita, the sharp_bilinear_simple shader, on by default, creates a sharp pixel image with minimal blurring. It applies a maximum integer pre-scale first. Then it scales only the small remainder using the builtin bilinear filter, keeping the aspect ratio intact.
Many Amiga games fit the screen very nicely. For example, take Chaos Engine with a screen setting of 320*200 and sharp_bilinear_simple shader enabled. The picture can be zoomed using R+Start+Dpad left/right, and moved vertically using R+Start+Dpad up/down to center it on the Vita screen. Once this is done, the picture fills almost the whole screen and looks amazing with no artifacts or blurriness. The game runs smooth with zero frameskip.
Selecting a ‘Preset Width’ of 320, 352 or 384 (max overscan) results in lo-res screen emulation, good for most games, while 640, 704, or 768 results in hi-res screen emulation, good for use with Workbench or some text-based games.
- *Display on Switch:* On Switch, there is no shader support yet. But the 720p resolution on Switch allows 3* integer scaling in many cases, which can be selected in the display menu under `shader`. There are two settings: `None (perfect integer scaling)` or `bilinear (quite blurry)`.
- *Blitter:* The blitter settings can help with graphics glitches in some games. Since it seems to work best, “immediate” is the default. But some games require setting blitter to “normal” and re-booting to remove graphics glitches, for example PP Hammer, Spindizzy Worlds, and Shufflepuck Cafe.
- *WHDLoad:* If you have problems with a WHDLoad .hdf game, maybe try an .adf version of the same game. Rock’n Roll is one of a few games that work on UAE4All2 only using .adf files. It has graphics glitches and runs too fast in WHDLoad with .hdf. To make it work correctly, I loaded the “Rock’n Roll.adf” from Gamebase Amiga, chose the preset A500 config, and changed the Blitter setting to Normal.
- *Sprite Collisions:* Some games require sprite-to-sprite collisions. Sprite collisions can be turned on in the “more options” menu. The only game I know of that requires this is SpaceTaxi 3.
- *Savestates:* Four regular savestates can be saved per game. There’s also a slot for an automatic savestate, labeled “auto”. If it exists, this will be loaded immediately when the .adf is inserted. To prevent this, delete the auto savestate by selecting it and choosing “delete savestate”.
- *Multiplayer:* Up to four controllers on Vita TV are supported and can be fully mapped. The mouse can be switched off because it interferes with the other joystick that controls player 2 in most games. If you pair new controllers and they do not seem to work, scan for them in the “custom controls” menu by pressing L. At the bottom it will say how many controllers have been found. By default, parallel port Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.
- *Sound:* For use with headphones, a stereo separation setting of 50 sounds better than the default setting of 100. The original Amiga had completely disjoint left/right channels. This can sound quite jarring on headphones. Concerning sound frequency, on the Vita, the default of 44.1 kHz gives by far the best results. On the Switch, the best sound is obtained with 48 kHz, which is the only frequency supported on Switch.

Compiling
======
* Dependencies: SDL2, SDL2_image, libpng, libjpeg, zlib
* Clone repo into a folder somewhere
* Vita:
* Install VitaSDK toolchain and all vdpm packages: http://vitasdk.org
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_PSP2=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2.vpk
“`
* Note: The Vita source depends on FrangarCJ’s Vita2d fbo branch with shader support here: https://github.com/Cpasjuste/vita2dlib/tree/fbo
and FrangarCJ’s vita-shader-collection gtu branch: https://github.com/frangarcj/vita-shader-collection/tree/gtu
Those are both included as binaries and linked automatically.

* Switch:
* Install DevkitPro: https://devkitpro.org/wiki/devkitPro_pacman#Using_Pacman
* Install required libs:
“`
sudo (dkp-)pacman -S switch-dev
sudo -E dkp-pacman -S switch-sdl2
sudo -E dkp-pacman -S switch-sdl2_image
sudo -E dkp-pacman -S switch-glm
sudo -E dkp-pacman -S switch-glad
sudo -E dkp-pacman -S switch-mesa
sudo -E dkp-pacman -S switch-libpng
sudo -E dkp-pacman -S switch-zlib
sudo -E dkp-pacman -S switch-libjpeg-turbo
sudo -E dkp-pacman -S switch-libdrm-nouveau
“`
* Compile and package:
“`
mkdir build
cd build
ccmake “your uae4all2 repo folder” -DBUILD_NX=ON -DCMAKE_BUILD_TYPE=Release
make uae4all2_switch.zip
“`
* Unzip and copy all all files to Switch so you have `/switch/uae4all2/uae4all2.nro` and `/switch/uae4all2/data/` etc. on your SD card
* Launch using your favorite homebrew launcher

FAQ
=====
* Kickstart rom files not found on startup?

First, please ensure you are using the correct files. They should be “kick13.rom” (size: 262,144 bytes), “kick20.rom” (size: 524,288) and “kick31.rom” (size: 524,288). They should be placed in “”ux0:/data/uae4all/kickstarts” Second, please make sure your ux0:/data folder does NOT have the FAT attributes “hidden” or “system” set.

* Black screen on Switch, or crash on startup?

In my testing (only with exFAT), I found that exFAT corruption can cause all files in the uae4all2 folder to become corrupted (among others). This includes kick13.rom and other kickstart files, which causes a black screen when leaving the menu. Game .adf files can become corrupted, causing the game to stop booting. Even the executable uae4all2.nro and/or config files in the conf folder can become corrupted quite easily, causing black screen crash on startup. Either don’t use exFAT, or make a good backup of the folder and restore it via FTP if there are problems.

Controls
=====

Switch:
—–
Switch uses exactly the same controls as the Vita, with the following meaning:
Square = Y
Triangle = X
Cross = B
Circle = A
Start = Plus
Select = Minus

General
—–
Select = Toggle menu
Start = Toggle virtual keyboard
R+Start+Dpad up/down = Move screen up/down
R+Start+Dpad left/right = Change screenmode (to zoom in on games with borders)
Right analog stick = Analog mouse (can switch this to left stick in menu)
Left analog stick = Amiga joystick directions
Dpad = Amiga joystick directions

When custom controls are off
—–
L shoulder button = right mouse click
R shoulder button = left mouse click
(Shown below are control presets 1 (default) / 2 / 3 / 4)
Square = Autofire (default) / Fire / Autofire / Fire
Cross = Fire (default) / Autofire / Up (Jump) / Up (Jump)
Triangle = Space (default) / Space / Fire / Autofire
Circle = Secondary Fire (used only in a few games)
R+Square = Ctrl
R+Circle = Left Alt
R+Cross = Help
L+Square = Left mouse
L+Circle = Right mouse
R+Dpad = Arrow keys

When custom controls are on
—–
L+Start = Toggle between custom control set number 1, 2, and 3

In this mode, Vita buttons can be mapped to any Amiga side keyboard key or joystick action. There’s also a mapping option called “slow mouse.” It will slow down the mouse pointer by a factor ten if that mapped button is held down. Up to four Vita controllers can be mapped (for multiplayer on VitaTV). Four Amiga-side joysticks are supported. Joystick 3 and 4 are on the emulated parallel port joystick adapter.

Virtual keyboard controls
—–
Start = Toggle virtual keyboard
Right analog stick up/down = Move virtual keyboard up and down
Right analog stick left/right = Change virtual keyboard transparency
Cross = Press selected key
Square = Backspace
Triangle = Toggle shift
Circle = Turn off all sticky keys (ctrl, alt, amiga, and shift)

Touch controls
—–
Note: for multi-touch gestures, the fingers have to be far enough apart from each other, so that the Vita will not erroneously recognize them as a single finger. Otherwise the pointer will jump around.

Single short tap = left mouse click
Single short tap while holding a second finger down = right mouse click
Single finger drag = move the mouse pointer, how far the pointer moves in response to finger motion depends on the Mouse Speed setting
Dual finger drag = drag’n'drop (left mouse button is held down)
Three finger drag = drag’n'drop (right mouse button is held down)

Bluetooth Keyboard / Mouse controls
—–
Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP,” and with the “Jelly Comb Bluetooth Wireless Mouse ASIN:B075HBDWCF.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down. The Vita doesn’t pair with all Bluetooth keyboards and mice. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All.

CHANGELOG
=====
1.72switch

- Added Switch release

1.72

- Savestate location can now be changed in the menu

- Savestates can now be deleted from the menu

- Implemented an automatic savestate. There’s a new savestate slot called auto. If it exists, this savestate will be loaded immediately when inserting a floppy.

1.71

- Fix hd settings not saving, and displayline settings not loading in certain situations

1.70

- Improve pointer response to diagonal stick directions

1.69

- Improve pointer response to slow finger motion

1.68

- Parallel port joystick adapter support. By default, Amiga joysticks 3 and 4 are controlled by VitaTV gamepads 3 and 4. They can also be mapped to other inputs using the custom controls screen.

1.67

- Improve pointer controls with bluetooth mouse by re-compiling with latest SDL-Vita

1.66

- Prevent accidental clicks when moving pointer using touch

1.65

- eliminate transparent keyboard slowdown
- fix joystick port setting affecting custom controls unless set to ‘port1′

1.64

- improved ‘normal’ blitter mode (fixes flicker in PP Hammer and Spindizzy Worlds)

1.63
- implemented three-finger drag as right-button drag (useful to hold-down the right mouse button). Fingers have to be somewhat apart from each other, otherwise they are recognized as single or dual touch by the Vita.

1.62
- re-compiled in safe-mode
- fix empty directory listing of uma0:

1.61
- re-compiled in unsafe-mode

1.60
- support for uma0: added
- prevent suspend mode because it can corrupt hdf files

1.59
- implemented touchpad-style pointer controls. Touch controls are configured under ‘More Options/Touch.’ Choices are ‘Touch Off’, ‘Front only’, or ‘Front and Back.’ The default is to use only the front panel. Both panels work the same, using relative touch mode. How far a certain finger motion moves the pointer depends on the Mouse Speed setting, which also affects how fast the analog stick moves the mouse.

1.58
- fix ‘movec pcr,d0′ not throwing exception on 68020 (fixes WHDload 18.3)
- recompiled with latest SDL library supporting full analog joystick range

1.57
- sticky virtual keyboard keys implemented. The alt, ctrl, amiga, and shift virtual keyboard keys are now sticky. Press them once to enable and another time to let go of the key. Key combos like “Amiga-Q” can now be entered using the virtual keyboard. The circle button quickly un-sticks all keys.

1.56
- fix keys being pressed when pressing Vita buttons (introduced in 1.55)

1.55
- support for Bluetooth keyboard and mouse added. The Vita doesn’t pair with all Bluetooth keyboard/mouse combos. As a rule, if the keyboard works to highlight bubbles with cursor keys, it should also work in UAE4All. Mouse + keyboard tested working with the “Jelly Comb Mini Bluetooth Keyboard With Mouse Touchpad, ASIN:B06Y56BBYP.” The Amiga keys are mapped to Windows (GUI) keys as well as Page Up/Down.

1.54
- more choices for setting mouse speeds in steps of 0.25 now
- a button can be mapped to “slow mouse” in custom controls. When custom controls are on and that button is held down, the mouse pointer speed is greatly reduced. This is useful for precisely positioning the cursor.

1.53
- fix analog stick angular zone sizes (22.5 degrees per half zone now e.g. eight 45 degree zones)

1.52
- improved joystick diagonals and deadzone when controlling the Amiga joystick with Vita analog stick. The joystick analog-to-digital conversion is now done using a proper radial deadzone with eight symmetric angular zones for the possible directions.

1.51
- fix autofire for ply 2 w/o custom controls

1.50
- fix improved analog deadzone (broken in last release)

1.49
- improved analog mouse deadzone (radial and scaled)

1.48
- cleaned up display menu
- added option to choose menu background

1.47
- new menu background
- fix swapped “Quote”"Backquote” overlay keyboard keys

1.46
- never save autofire button to reduce confusion
- fixed menu navigation bug in HDF file selection

1.45
- added option to use autofire with custom configs, can choose one Vita button that will have autofire, or set it to ‘none’ (default) to turn it off

1.44
- improved contrast of virtual keyboard overlays (thanks to ScHlAuChi for new images)
- added option to choose between US, UK and German virtual keyboard overlay (thanks to ScHlAuChi for new images)

1.43
- full support for up to 4 controllers on Vita TV that can be fully mapped individually
- filelists (adf, hdf, etc) are now sorted alphabetically with directories at the top
- added option to turn off mouse emulation because it often interferes with second player (port 0 joystick) when playing multiplayer on the Vita TV
- added option to turn on sprite-sprite collisions, useful for Spacetaxi 3
- changed blitter default to “immediate” it seems to be more compatible

1.42
- added two player support on Vita TV, second paired Dualshock controller controls the ‘other’ joystick, only works if port is not set to ‘both’
- fixed a crash bug when changing audio parameters while sound was playing

1.41
- assembler optimizations enabled by Cpasjuste, emulator is faster now!

1.40
- disabled the menu entries ’screenwidth’ and ’stylus offset’ that did nothing on the Vita. To show the borders in overscan games like Settlers, simply use the menu option ‘Preset Width’ and set it to >320 for lores, (or >640 for hires). There are choices 352, 384, 704 and 768 that cover the full overscan range.

1.39
- fix sound setting changes not being applied until restart
- fix sound distortion for stereo separation settings 0 (mono) and 25%

1.38
- added stereo separation setting to select between 0 (mono) 25%, 50%, 75% and 100% (stereo, default, original Amiga sound)
- added the blitter options ‘normal, immediate, and improved’ default is ‘normal.’ Might help with some games

1.37
- some fixes to savestates. Now savestates work even with no disk inserted in df0. Savestate file name is now the first available name among df0, boot-hd, hdf2, hdf3, hdf4, df1, df2, df3.

1.36
- added measures to prevent file corruption: Disabled PS button because it caused corruption of hdf files; display a warning about file corruption if the Amiga is writing to hdf while the user tries to exit the program
- fix hdf size checking
- fixed up some menu text
- adjusted quickswitch screenmodes by two pixels

1.35
- now upto four hdf files can be mounted. From my own testing, it looks like 2 Gb is the hdf size limit. Geometry for each file can be changed by manually editing the config file, default is sectors:surfaces:reserved:blocksize=32:1:2:512 for files 1Gb and 32:4:2:512 for files >2Gb. Only files <=2 Gb seem to work.

1.34
- hires support (e.g. 640*256), switchable in display menu. (Select a screen mode with “640″ as width in the first option of the display menu, and the Workbench will be rendered with every pixel. A width of “320″ reverts back to old behavior.)

1.33
- implemented three fully mappable custom configs, configurable in controls menu. Quick switch between them using “L+Start”
- allow the “other joystick” to be mapped in custom controls to the Dpad or any buttons. This only works if ports is not set to “both”. Works great for Llamatron in dual joystick mode!

1.32
- virtual keyboard transparency adjust now toggles between four values, two of which cause zero slow-down when keyboard is displayed.
- resolution/zoom quick switch with R+Start+Dpad left/right is now more responsive

1.31
- Allow menu quit from within sub-menus using ’select’

1.30
- updated autocentering of analog sticks so that both sticks are always auto-centered, not just the one that controls the mouse

1.29
- Changed controls. The virtual keyboard is too useful to put it on an obscure combo. Start Button now toggles the virtual keyboard. When keyboard is active, right analog stick then controls the keyboard’s vertical position and transparency. When keyboard is off, use R+Start+Dpad to move screen up and down and to quick switch between common resolutions. This used to be just Start+Dpad. Now it is R+Start+Dpad.

1.28
- bugfix: the virtual keyboard sometimes sent joystick button presses to the emulator when selecting keys. This has been fixed.

1.27
- virtual keyboard hotkeys added, square = backspace, triangle = toggle shift
- virtual keyboard controls are now more responsive

1.26
- virtual keyboard transparency is now adjustable (START+dpad left/right)
- fixed bug in virtual keyboard initialization where the keyboard send an endless string of ‘ symbols on boot up before it was first opened

1.25
- vastly improved virtual keyboard: The image is now bigger, supports more keys including the shift modifier, and is transparent (thanks to ScHlAuChi for the new keyboard image and many ideas)
- Fixed virtual keyboard not reacting when custom dpad mode was active
- The virtual keyboard can now be moved up and down using start+dpad up and start + dpad down.

1.24
- virtual keyboard (mapped to “hold start then press select”)
- labels in custom control menu now reflect Vita controller
- default analog mouse control deadzone increased from 100 to 1000 to fix mouse pointer drift (can be changed in menu)
- default joystick port set to 1, since the mouse is always on (can be changed in menu)

1.23
- added analog joystick deadzone setting
- implemented autocentering to fix mouse pointer drift on some Vitas. Centering happens on program start and whenever the menu is opened
- START+DPAD left/right for quick switching between different zoomed screenmodes, useful for games like Chaos Engine. Use START+DPAD up/down to center screen after quick switching.

1.22
- fixed broken analog mouse control dead zone and improved mouse analog sensitivity

1.21
- moved shader config to display menu

1.20:
- added analog mouse support with menu option to choose left or right stick for mouse control
- new menu items in misc menu:
shader choice (default: sharp_bilinear_simple)
choice which analog stick to use for mouse
- disabled broken gp2x stylus mode and mouse emu mode
- L/R are mouse buttons now
- screen movement switched from L+R+DPAD to START+DPAD
- START does not switch input modes anymore (mouse is always enabled)
- updated Readme.txt with new Vita control scheme
- fixed misc menu entries for shader and analog mouse
- custom controls menu is now more snappy

<1.20:
- perfect 2x scaling support to reduce pixel wobble
- HD Dir fix (supports one HD Dir & one HDF simultaneously, but max hdf size is still 1 Gb)
- Shader support implemented by Cpasjuste

Download Uae4All2 Vita_mod from the Brewology PSVita Store.

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vitaSnake Grzybojad has released vitaSnake version 1.0 for the PSVita.

What’s new in 1.0?
* Remade all textures and added multiple alternative player and background textures
* Added sound effects
* Added touch controls to menus
* Added a “simplified” control scheme
* Made the snake move much more smoothly
* Streamlined the difficulty options to ‘Casual’ and ‘Hardcore’
* Updated livearea with art by Catter

![vitaSnake 1.0 AD](https://i.imgur.com/mnppCZF.png)

Download vitaSnake from the Brewology PSVita Store.

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pkgj blastrock has released pkgj version 0.38 for the PSVita.

What’s new:

- There is a new window when clicking on a game which makes it easier to install games and compatibility packs
- Added a diagnosis about game installation that helps detecting game/compatibility pack version mismatch
- Download cancelation is now more reactive

Removed features:

- PKGj can’t download game updates anymore as they were outdated. Use the livearea to update your games.

Download pkgj from the Brewology PSVita Store.

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VitaGrafix Configurator Kirezar has released VitaGrafix Configurator version 1.3 for the PSVita.

## Important

Please update to this version, as it includes future app version checks that won’t allow you to download a game list with new functionalities like multiple dynamic resolutions if you don’t have the correct version.

### Changes

Updated to VitaGrafix 3.2, support for multiple dynamic resolutions (like in Wipeout 2048).

Download VitaGrafix Configurator from the Brewology PSVita Store.

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Autoplugin theheroGAC has released Autoplugin version 3.56 for the PSVita.

-added plugin iTLS-Enso v2.0 by SKGleba
-Updated the following translations:
Spanish thank you gvaldebenit
French thank you chronoss09
Japanese thank you Umineko1993
Chinese thank you yexun1995

Download Autoplugin from the Brewology PSVita Store.

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iTLS-Enso SKGleba has released iTLS-Enso version 2.0 for the PSVita.

- Added a plugin version

Download iTLS-Enso from the Brewology PSVita Store.

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Higurashi Vita MyLegGuy has released Higurashi Vita version 2.9 for the PSVita.

Useful changes:
* Optional text drop shadow added.
* Saving in VNDS mode can now easily be done by pressing start. Text log is now bound to up on the d-pad.
* VNDS mode has a new save and load menu. It’s a proper one with screenshot and text thumbnails. Hold R and press left or right to jump 5 pages. To generate thumbnails for your old VNDS saves, hold L and R and press select on the VNDS menu. It’ll probably work maybe.
* Quick VNDS save menu, the one when you hold R, now looks less ugly

Small useless changes that I list to make it seem like I did more work than I really did:
* The text fadeout transition no longer happens if your text speed is set to instant. It looks better this way.
* Embedded VNDS games now save in the proper location
* Sound filenames are no longer case sensitive
* Remove vnds converter < v1.1 warning.
* Fix crash when trying to save right after loading, allows you to move saves to other slots.
* Fix crash when trying to save if it’s your first run. Actually, maybe it was impossible to trigger this crash without an embedded game.
* Error messages will now wrap
* Reset settings and font size options only show on main menu now
* Remove some weird FPS limiting code. Things may be smoother, but probably not.

Download Higurashi Vita from the Brewology PSVita Store.

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