CAPRICE32 4.5+ LIBRETRO

All the credit of the caprice32 Emulator to Ulrich Doewich

You can download the caprice32 original source code here

And of course for the RetroArch/Libretro team : "http://www.libretro.com"

The core work pretty well and give the fantastic ability to use the RetroArch Shaders.

Try some CRT shaders and welcome back to the 80s on you're good old CPC.

Usage

Launch a TAPE (cdt), DSK or M3U, and game should autostart.

Keyboard emulated layout

English layout

Spanish layout

French layout

Keyboard Custom Binds

Choose AMSTRAD KEYBOARD in Quick Menu > Controls and User 1/2 config different than joystick to map your retropad keys per game/rom.

Caprice brings some default keymaps confings, these configs are detailed at libretro docs: https://docs.libretro.com/library/caprice32/

Features not covered in docs

New Model: [cap32_model] (6128 | 464 | 6128+)

Choose which Amstrad CPC model to emulate, currently added 6128+

New Combo Key: [cap32_combokey] (select | y | b | disabled)

Choose which combo key do you want use and it's ignored from user keymap. If you set as disabled, all joypad buttons are available for your game remaps.

New Remaps

QAOP MAP changed to:

   CPC_KEY_SPACE,       // BUTTON A
   CPC_KEY_B,           // BUTTON B
   CPC_KEY_N,           // BUTTON X
   CPC_KEY_Y,           // BUTTON Y
   CPC_KEY_S,           // SELECT
   CPC_KEY_K,           // START
   CPC_KEY_Q,           // PAD UP
   CPC_KEY_A,           // PAD DOWN
   CPC_KEY_O,           // PAD LEFT
   CPC_KEY_P,           // PAD RIGHT

Simplified JOYSTICK MAP: BUTTON Y, X, SELECT, START - not binded to any key to allow customize on CONTROLS menu.

   CPC_KEY_JOY_FIRE1,   // BUTTON A
   CPC_KEY_JOY_FIRE2,   // BUTTON B
   UNUSED,              // BUTTON X
   UNUSED,              // BUTTON Y
   UNUSED,              // SELECT
   UNUSED,              // START
   CPC_KEY_JOY_UP,      // PAD UP
   CPC_KEY_JOY_DOWN,    // PAD DOWN
   CPC_KEY_JOY_LEFT,    // PAD LEFT
   CPC_KEY_JOY_RIGHT,   // PAD RIGHT

New joystick on port_2:

   CPC_KEY_JOY2_FIRE1,  // BUTTON A
   CPC_KEY_JOY2_FIRE2,  // BUTTON B
   CPC_KEY_X,           // BUTTON X
   CPC_KEY_SPACE,       // BUTTON Y
   CPC_KEY_S,           // SELECT
   CPC_KEY_J,           // START
   CPC_KEY_JOY2_UP,     // PAD UP
   CPC_KEY_JOY2_DOWN,   // PAD DOWN
   CPC_KEY_JOY2_LEFT,   // PAD LEFT
   CPC_KEY_JOY2_RIGHT,  // PAD RIGHT

L/R L2/R2 changed to allow more combos:

   CPC_KEY_CONTROL,     // BUTTON L
   CPC_KEY_INTRO,       // BUTTON R
   CPC_KEY_F1,          // L2
   CPC_KEY_F2,          // R2

M3U and Disk/Tape control

When you have a multi game image, you can use a m3u file to specify each disk or tape of the game and change them from the RetroArch Disk control interface.

A M3U file is a simple text file with one disk per line (see https://en.wikipedia.org/wiki/M3U).

Example :

Alive (F).m3u

Alive (F) - Disk 1A.dsk
Alive (F) - Disk 1B.dsk

Path can be absolute or relative to the location of the M3U file.

When a game ask for it, you can change the current disk in the RetroArch 'Disk Control' menu :

Eject the current disk with 'Disk Cycle Tray Status'.
Select the right disk index.
Insert the new disk with 'Disk Cycle Tray Status'.

When the core start, the first disk will be mounted and the first executable autostarted (if autostart is enabled).

Specify a specific command to launch a game

If the autolaunch option of the core does a pretty good job to guess what command must be executed to launch a game on the CPC, there is some problems (cpm disk and strange catalogs for the most).

You can specify a command to be executed on the CPC when the emu launch.

All you have to do is to add a comment like this in the m3u file :

#COMMAND:<YOUR_COMMAND_HERE>

Even for one disk game, you can create a m3u file like this one :

Jack the Nipper II... In Coconut Capers.m3u

#COMMAND:|CPM
Jack the Nipper II... In Coconut Capers (E).dsk

Known Bugs

CPC+ Emulation have some issues
Old3DS need some optimizations (~18fps).

leiradel/libretro-cap32