Enterprise 64/128

The Enterprise is a Zilog Z80-based home computer announced in 1983, but due to a series of delays, was not commercially available until 1985. It was mostly successful in the UK and Hungary, with its innovative use of custom ASICs for graphics and sound which took workload away from the main CPU.

Quick reference

BIOS

CLK

MD5 checksum Share file path Description
e972fe42b398c9ff1d93ff014786aec6 bios/Enterprise/basic21.bin Required for CLK
f36f24cbb87745fbd2714e4df881db09 bios/Enterprise/exos21.bin Required for CLK

RetroArch (ep128emu-core)

The ep128emu-core provides built-in ROM images. No external BIOS files are required, although it can use custom ROM versions if placed in /userdata/bios/ep128emu/roms/.

MD5 checksum Share file path Description
f36f24cbb87745fbd2714e4df881db09 bios/ep128emu/roms/exos21.rom Expandible OS 2.1
e972fe42b398c9ff1d93ff014786aec6 bios/ep128emu/roms/basic21.rom BASIC Interpreter v2.1
ddff70c014d1958dc75378b6c9aab6f8 bios/ep128emu/roms/exdos13.rom Disk Controller v1.3
a68ebcbc73a4d2178d755b7755bf18fe bios/ep128emu/roms/epfileio.rom Direct File I/O

Optional:

MD5 checksum Share file path Description
5ad3baaad3b5156d6b60b34229a676fb bios/ep128emu/roms/exos20.rom Enterprise 64 OS 2.0
8e18edce4a7acb2c33cc0ab18f988482 bios/ep128emu/roms/basic20.rom Enterprise 64 BASIC v2.0
55af78f877a21ca45eb2df68a74fcc60 bios/ep128emu/roms/exos24uk.rom Expandible OS 2.4
22167938f142c222f40992839aa21a06 bios/ep128emu/roms/hun.rom Hungarian language extension
6af0402906944fd134004b85097c8524 bios/ep128emu/roms/brd.rom German language extension
12cfc9c7e48c8a16c2e09edbd926d467 bios/ep128emu/roms/epd19hft.rom EP-DOS Hungarian
228540b6be83ae2acd7569c8ff0f91d0 bios/ep128emu/roms/zt19uk.rom ZozoTools extension
653daaf7b9b29c2c4e577f489580f247 bios/ep128emu/roms/zt19hfnt.rom ZozoTools Hungarian

MAME

MAME requires the following BIOS files placed in /userdata/bios/:

File Description
ep64.zip Enterprise 64 BIOS
ep128.zip Enterprise 128 BIOS
ep64_exdos.zip Enterprise 64 with EXDOS floppy controller

ROMs

Place your Enterprise ROMs in /userdata/roms/enterprise.

CLK only supports .bas, .com and .zip files. Disk and tape formats (.img, .dsk, .tap, .dtf, .trn, .128, .cas, .cdt, .tzx) require the ep128emu-core or MAME emulators.

Emulators

CLK

CLK aka Clock Signal is a multi-system emulator that is focused on low-latency emulation. It emulates Enterprise and a bunch of other old computers. CLK uses RGB video output for Enterprise.

RetroArch

RetroArch (formerly SSNES), is a ubiquitous frontend that can run multiple “cores”, which are essentially the emulators themselves. The most common cores use the libretro API, so that's why cores run in RetroArch in Batocera are referred to as “libretro: (core name)”. RetroArch aims to unify the feature set of all libretro cores and offer a universal, familiar interface independent of platform.

RetroArch configuration

RetroArch offers a Quick Menu accessed by pressing [HOTKEY] + South button (B SNES) which can be used to alter various things like RetroArch and core options, and controller mapping. Most RetroArch related settings can be altered from Batocera's EmulationStation.

Standardized features available to all cores of this emulator: enterprise.videomode, enterprise.ratio, enterprise.smooth, enterprise.shaders, enterprise.pixel_perfect, enterprise.decoration, enterprise.game_translation

ES setting name batocera.conf key Description ⇒ ES option key value
Settings that apply to all cores of this emulator
GRAPHICS BACKEND enterprise.gfxbackend Choose your graphics rendering
⇒ OpenGL opengl, Vulkan vulkan.
AUDIO LATENCY enterprise.audio_latency Audio latency in milliseconds, turn it up if you hear crackles
⇒ 256 256, 192 192, 128 128, 64 64, 32 32, 16 16, 8 8.

libretro: ep128emu-core

ep128emu-core is a highly accurate Enterprise 64/128 emulator ported to libretro. It also supports Videoton TVC emulation.

libretro: ep128emu-core configuration
ES setting name batocera.conf key Description ⇒ ES option key value
Settings specific to the ep128emu-core
MAIN THREAD WAIT enterprise.ep128emu_wait Main thread wait time in milliseconds
⇒ 0 0 (default) through higher values.
HIGH SOUND QUALITY enterprise.ep128emu_sdhq Enable high quality sound rendering
⇒ On 1 (default), Off 0.
ACCELERATED SW FRAMEBUFFER enterprise.ep128emu_swfb Use accelerated software framebuffer
⇒ Off 0 (default), On 1.
ENABLE RESOLUTION CHANGES enterprise.ep128emu_useh Allow dynamic resolution changes (requires restart)
⇒ On 1 (default), Off 0.
BORDER LINES enterprise.ep128emu_brds Number of border lines to keep when zooming in
⇒ 0 0 (default) through higher values.
SYSTEM ROM VERSION enterprise.ep128emu_romv Choose system ROM version (Enterprise only)
⇒ Original Original (default).
ZOOM BUTTON enterprise.ep128emu_zoom Assign zoom function to a button
⇒ R3 R3 (default).
INFO BUTTON enterprise.ep128emu_info Assign info overlay to a button
⇒ L3 L3 (default).
AUTOFIRE BUTTON enterprise.ep128emu_afbt Select which button gets autofire
⇒ None None (default).
AUTOFIRE REPEAT DELAY enterprise.ep128emu_afsp Set autofire repeat delay
⇒ 1 1 (default) through higher values.

libretro: MAME

MAME can emulate the Enterprise 128 using the ep128 driver with the EXDOS floppy disk expansion (-exp exdos) enabled automatically. This allows loading disk images (.img, .dsk) directly.

MAME (standalone)

The standalone MAME emulator provides the same ep128 driver with EXDOS support as the libretro core, but as a separate application.

Controls

Most Enterprise games are played with the keyboard, or need a keyboard to start a game. There is a minimal pad2key configuration provided that emulates the internal joystick of the Enterprise, but if you use only a joystick, you will most probably have to remap the keyboard to play your game.

Troubleshooting

Further troubleshooting

For further troubleshooting, refer to the generic support pages.

  • systems/enterprise.txt
  • Last modified: 4 weeks ago
  • by wizzard