libretro/libretro-fsuae

Name: libretro-fsuae

Owner: libretro

Description: WIP - fs-uae libretro version (Cross-platform Amiga emulator)

Created: 2016-09-06 07:57:25.0

Updated: 2018-01-09 23:39:55.0

Pushed: 2017-02-27 10:03:01.0

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Size: 39191

Language: C

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README

            FS-UAE LIBRETRO TEST/DEBUG VERSION (WIP)

Based on FS-UAE 2.8.1u5 (https://fs-uae.net/)

'Beta' release:

• The input layer is the same as libretro-uae (README-libretro-puae):
• Gamepad compatible (to be fixed).
• AltL+F11: GUI screen (need to be fixed).
• F11: Grab mouse (default retroarch key)
• RET: virtual keyboard.
• Audio OK now.
• Mouse + Jostick setup as default emulation inputs.

Misc Issues:

• Static Makefile (Will target mainly Linux x86_64/i686/arm)

---

Test

• The kickstart must be located here: (Retro_Save_Directory)/fsuae/Kickstarts
• Using USE_FSUAEDIRS=1 at the make level, the software will use the same directories/configurations as the regular FS-UAE (kickstart: ~/FS-UAE/Kickstarts)
• This software processes the 'fs-uae' configuration files
• Your ADF file: /storage/df0.adf

>a500.fs-uae <<EOF
fig]
a_model = A500
_aspect = 1
e_y = 2.05
e_x = 2.05
 = 640x512+border
py_drive_0 = /storage/df0.adf

The last command:

oarch -L ./fsuae_libretro.so ./a500.fs-uae

---

Linux x86-64:

togen.sh
GS="-O2" ./configure --build=x86_64-pc-linux-gnu --prefix=/usr/local --enable-shared --disable-static --libdir=/usr/local/lib64 --enable-jit
 gen -j 4
 clean
 -j 4

Linux ARM: (-mthumb or -marm mode)

togen.sh
GS="-O2" ./configure --build=arm-pc-linux-gnueabihf --prefix=/usr/local --enable-shared --disable-static --libdir=/usr/local/lib --disable-jit --enable-neon
 gen -j 4
 clean
 -j 4

ARM: The following parameter is likely required to get real-time operation: accuracy = 0, or accuracy = -1.

---

A4000 / A3000 Emulation / Regular Installation

The file: 'fs-uae.dat' is required, and must be located, on one of the following directory (the base is the 'retroarch' executable directory): base/fs-uae.dat, base/../share/fs-uae/fs-uae.dat or base/../../Data/fs-uae.dat

e.g.:

all -o root -g bin -m 0644 fsuae_libretro.so "${prefix}/libexec/libretro/x86_64-pc-linux-gnu/fsuae_libretro.so"
all -o root -g bin -m 0644 "fs-uae.dat" "${prefix}/share/fs-uae/fs-uae.dat"

---

JIT

Operational on the 'x86_64' and 'i686' architecture.

>a4000.fs-uae <<EOF
fig]
a_model = A4000
compiler = 1
compfpu = 1
racy = 0
_aspect = 1
e_y = 2.05
e_x = 2.05
 = 640x512+border
py_drive_0 = /storage/df0.adf

• x86_64: the JIT requires a 32 bits address range for some ELF loaded symbols; The following command is required:

rt LD_PREFER_MAP_32BIT_EXEC=1

---

Graphic Resolution / Crop

Add a new option to 'crop' the graphic output: zoom = GFXWIDTHxGFXHEIGHT/GFX_OFFSETX/GFX_OFFSETY/GFX_CROPWIDTH/GFX_CROPHEIGHT The last two values are optional. This option is not compatible with the classical FS-UAE configuration file. Only the (GFX_CROPWIDTH,GFX_CROPHEIGHT) image size will be displayed. e.g.: zoom = 688x464/8/56/680/404 (GFX_OFFSETX and GFX_CROPWIDTH must be a multiple of 4)