mirror of
https://github.com/Abdess/retroarch_system.git
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267 lines
12 KiB
YAML
267 lines
12 KiB
YAML
emulator: CPCemu
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type: standalone
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core_classification: other
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source: "https://www.cpc-emu.org/"
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upstream: "https://www.cpc-emu.org/"
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profiled_date: "2026-08-08"
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core_version: "3.0.2"
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display_name: "Amstrad - CPC (CPCemu)"
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cores:
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- cpcemu
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systems:
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- amstrad-cpc
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mode: standalone
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notes: |
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Amstrad CPC emulator by Marco Vieth and Rainer Loritz, closed-source freeware
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for Windows, macOS, Linux, Android and iOS. Machines are the CPC 464, 664 and
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6128; the firmware identifier and the message catalogue also know the 464+,
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the 6128+ and the KC compact.
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Two packages were used. The 3.0.2 Windows portable and macOS builds of
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2025-04-24 carry the same fourteen ROM files and the same data files, and
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provide the path constants, the message catalogue and the v3.0 help file. The
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2.5 Linux x86-64 build of 2022-08-13 is still the newest Linux release, the
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3.0.2 Linux archives listed on the download page being absent from the
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server, and provides the runtime behaviour:
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file opens traced with strace, required and optional decided by removing,
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truncating and patching each file and reading the emulator's own messages.
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ROMs live in ROM_PATH, "./ROM/" in the shipped configuration, resolved against
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the working directory; the macOS build reads them from the application bundle
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Resources folder. Slots are filled by ROM_BLOCK lines naming a ROM number, a
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file in ROM_PATH and a 16 KB block position inside that file:
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ROM_BLOCK = 255, "CPC6128.ROM", 0 lower ROM
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ROM_BLOCK = 0 , "CPC6128.ROM", 1 foreground ROM
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ROM_BLOCK = 7 , "CPCADOS.ROM", 0 AMSDOS
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ROM_BLOCK = 6 , "M4.ROM" , 0 M4 board
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The shipped cpcemu0.cfg repeats the first three for every CPC_TYPE from 0 to
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5, with CPC464.ROM for types 0 and 3, CPC664.ROM for type 1 and CPC6128.ROM
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for types 2, 4 and 5, and adds the M4 line once for all types. A file named by
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a ROM_BLOCK line that cannot be opened prints "ROM: Cannot open file" and ends
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the process with status 3 before audio initialisation, whichever slot it fills
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and whether or not the matching device is enabled; deleting the line instead
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lets the emulator start.
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The machine is identified from the foreground ROM, not from the lower half and
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not from CPC_TYPE. CPCemu reads the four-byte CPC ROM header at the start of
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block 1: byte 0 has to be 0x80, and byte 2 selects the machine, 0x00 for the
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464, 0x01 for the 664, 0x02 for the 6128. A random block 1 gives "ROM: No
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foreground ROM found.", an unlisted version byte gives "ROM: Unknown ROM
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version.", and both end on "CPC type not configured or ROM for CPC type not
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available. Unable to continue." The modification byte is ignored, the lower
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16 KB half is never inspected, and padding past 32768 bytes is accepted, so
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the length requirement is a lower bound: a block 1 has to exist.
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Types 3, 4 and 5 need ROM images the packages do not carry. The help file
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states they have to be supplied in CPCEMU.CFG first, and no filename for them
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is compiled into the binary, the user names the file in the ROM_BLOCK line.
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Left on the shipped configuration those types load the 464 and 6128 files and
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report the machine those files describe. There is no cartridge support, the
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file types handled on the command line are dsk, sna, cfg and zip.
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M4 board emulation is on by default. HACK.ROM, the board's lower ROM, is
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opened at every startup whatever M4_ENABLED holds, after M4_SD_PATH +
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NMIROM.BIN has been tried, so a NMIROM.BIN placed on the emulated SD card
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replaces it; with neither present the emulator prints "Unable to load
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HACK.ROM" and keeps running. M4.ROM contents are checked, a zeroed file boots
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the CPC and reports "M4 ROM not valid." The firmware updater downloads
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M4FIRM.BIN from spinpoint.org and rewrites M4.ROM and HACK.ROM in place.
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Alongside the ROMs the binary reads its own payload from the program
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directory: cpcemu.msg, the message catalogue, whose absence leaves every
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message unprinted; cpcemu.dat, colours and key tables; cpcemu.hlp, the online
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help opened on F1; cpcemu.dbf, the poke database opened from the poke menu;
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and cpcemu0.cfg, the template used when no user configuration exists.
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Configuration is looked up first in the user profile, ~/.CPCemu/cpcemu.cfg on
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Linux, then cpcemu0.cfg in the working directory; with neither, startup stops
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on "CPCEMU: Use INSTALL first". The disc, tape and snapshot folders and the
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M4 SD card folder hold user content.
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files:
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# -- Firmware, lower ROM in block 0 and foreground ROM in block 1 --
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- name: CPC6128.ROM
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path: "ROM/CPC6128.ROM"
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system: amstrad-cpc
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required: true
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min_size: 32768
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validation: [size, signature]
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md5: b96280dc6c95a48857b4b8eb931533ae
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sha1: 5977adbad3f7c1e0e082cd02fe76a700d9860c30
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source_ref: "CPCemu 2.5/3.0.2: ROM/CPC6128.ROM, cpcemu0.cfg ROM_BLOCK 255 and 0 for CPC_TYPE 2, 4 and 5"
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note: >-
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CPC 6128 firmware and BASIC. Loaded for the shipped CPC_TYPE 2 and opened
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twice, once per block. Foreground ROM header 80 01 02 00.
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- name: CPC464.ROM
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path: "ROM/CPC464.ROM"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: a993f85b88ac4350cf4d41554e87fe4f
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sha1: 56d39c463da60968d93e58b4ba0e675829412a20
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source_ref: "CPCemu 2.5/3.0.2: ROM/CPC464.ROM, cpcemu0.cfg ROM_BLOCK 255 and 0 for CPC_TYPE 0 and 3"
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note: >-
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CPC 464 firmware and BASIC, selected by CPC_TYPE 0 or the -t 0 command
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line. Foreground ROM header 80 01 00 00.
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- name: CPC664.ROM
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path: "ROM/CPC664.ROM"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: 5a384a2310f472c7857888371c00ed66
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sha1: 073a7665527b5bd8a148747a3947dbd3328682c8
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source_ref: "CPCemu 2.5/3.0.2: ROM/CPC664.ROM, cpcemu0.cfg ROM_BLOCK 255 and 0 for CPC_TYPE 1"
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note: >-
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CPC 664 firmware and BASIC, selected by CPC_TYPE 1 or the -t 1 command
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line. Foreground ROM header 80 01 01 00.
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# -- Disc ROM, slot 7 --
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- name: CPCADOS.ROM
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path: "ROM/CPCADOS.ROM"
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system: amstrad-cpc
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required: true
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size: 16384
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md5: aa2fb251814bd971b2b9874ab0971b3f
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sha1: 0e247123b9d3204784eeadb4629b9d35b9dfd984
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source_ref: "CPCemu 2.5/3.0.2: ROM/CPCADOS.ROM, cpcemu0.cfg ROM_BLOCK 7 for every CPC_TYPE"
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note: >-
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AMSDOS disc ROM, the 8 KB image zero-padded to 16 KB. Declared for every
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machine by the shipped configuration, so startup ends on status 3 without
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it; dropping the ROM_BLOCK line instead boots with "ROM: No AMSDOS ROM
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found." and no disc support. Length is not checked, an 8 KB file installs
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the AMSDOS speedup all the same.
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# -- M4 board, ROM slot 6 plus the board's own lower ROM --
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- name: M4.ROM
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path: "ROM/M4.ROM"
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system: amstrad-cpc
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required: true
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size: 16384
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validation: [signature]
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md5: 28a7e368badca8299ba24a15bb4ebe9b
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sha1: 05f9447d307ab17eae9e2100f91c36b0c9560d4b
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source_ref: "CPCemu 2.5/3.0.2: ROM/M4.ROM, cpcemu0.cfg ROM_BLOCK 6, M4_ENABLED = 1"
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note: >-
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M4 board firmware by Duke. Declared by the shipped configuration, so
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startup ends on status 3 without it even when M4_ENABLED is 0. Contents
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are checked, a zeroed file boots and reports "M4 ROM not valid."
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- name: HACK.ROM
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path: "ROM/HACK.ROM"
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system: amstrad-cpc
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required: false
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size: 7994
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md5: ffcbcbce32223a152753d30766ad6215
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sha1: 582dd1706391f6f0161ad3486ae75a04fb0f7d5b
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source_ref: "CPCemu 2.5/3.0.2: ROM_PATH + /HACK.ROM, opened after M4_SD_PATH + NMIROM.BIN"
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note: >-
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M4 hack ROM, the lower ROM behind the Shift+F1 menu. Opened at every
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startup, and superseded by a NMIROM.BIN on the emulated SD card. Missing
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prints "Unable to load HACK.ROM" and emulation continues.
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# -- National firmware, configured by the 3.0.2 keyboard layout dialog --
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- name: CPC6128.ROM.UK
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path: "ROM/National/CPC6128.ROM.UK"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: b96280dc6c95a48857b4b8eb931533ae
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sha1: 5977adbad3f7c1e0e082cd02fe76a700d9860c30
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source_ref: "CPCemu 2.5/3.0.2: ROM/National/CPC6128.ROM.UK"
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note: >-
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English CPC 6128 firmware, the same image as CPC6128.ROM. Ships in the
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National folder without being named by any path constant.
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- name: CPC6128.ROM.FR
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path: "ROM/National/CPC6128.ROM.FR"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: 5ee871d5600eb9b5a22989c295f902a5
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sha1: 200d59076dfef36db061d6d7d21d80021cab1237
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source_ref: "CPCemu 3.0.2: National/CPC6128.ROM.FR, keyboard layout dialog on first start"
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note: "French CPC 6128 firmware, configured when the French layout is picked."
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- name: CPC6128.ROM.ES
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path: "ROM/National/CPC6128.ROM.ES"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: 0246740371010333385665dfeb7cd0ec
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sha1: 1acd01c2c03424a78b32c9440f4d890fb1104815
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source_ref: "CPCemu 3.0.2: National/CPC6128.ROM.ES, keyboard layout dialog on first start"
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note: "Spanish CPC 6128 firmware, configured when the Spanish layout is picked."
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- name: CPC6128.ROM.DK
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path: "ROM/National/CPC6128.ROM.DK"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: ca1635fd992e2aa7a776b30da13467e5
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sha1: a9e7ee6355730f319a37c95ca0a714212b88c3b1
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source_ref: "CPCemu 3.0.2: National/CPC6128.ROM.DK, keyboard layout dialog on first start"
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note: "Danish CPC 6128 firmware, configured when the Danish layout is picked."
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- name: CPC6128.ROM.SE
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path: "ROM/National/CPC6128.ROM.SE"
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system: amstrad-cpc
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required: false
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min_size: 32768
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validation: [size, signature]
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md5: 8ca256a832e83c875f5432b3dee8a36f
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sha1: 6765a91a42fed68a807325bf62a728e5ac5d622f
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source_ref: "CPCemu 2.5/3.0.2: ROM/National/CPC6128.ROM.SE"
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note: >-
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Swedish CPC 6128 firmware. Ships in the National folder without being
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named by any path constant, the layout dialog offering English, French,
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Spanish and Danish only.
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# -- Expansion ROMs mapped through a user ROM_BLOCK line --
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- name: XDDOS210.ROM
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path: "ROM/XDDOS210.ROM"
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system: amstrad-cpc
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required: false
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size: 16384
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md5: 1d91a9ef315b302d335cd7e04e8d8d86
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sha1: 2f1bd4d6e2d2e62818b01e6e7a26488362a7a8ee
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source_ref: "CPCemu 3.0.2: ROM/XDDOS210.ROM, cpcemu0.cfg commented ROM_BLOCK 7, help topic DOBBERTIN HD20 ENABLED"
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note: >-
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X-DDOS 2.10 by Dobbertin, the disc operating system of the HD20 hard disk.
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Required in a ROM slot to use DOBBERTIN_HD_ENABLED = 1. Added in 3.0, not
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shipped with 2.5.
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- name: COPYMATE.ROM
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path: "ROM/COPYMATE.ROM"
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system: amstrad-cpc
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required: false
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size: 16512
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md5: e9c4288eab8885a1e6ae7504a4736115
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sha1: 15d52de01320d9b954e03b4c2e71ec75fd301bbb
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source_ref: "CPCemu 2.5/3.0.2: ROM/COPYMATE.ROM, cpcemu0.cfg commented ROM_BLOCK 4"
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note: >-
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Copy utility ROM, carrying a 128-byte AMSDOS file header ahead of the
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16 KB image. Shipped as the example expansion ROM of the configuration
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file and loaded once the line is uncommented.
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- name: multface.rom
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path: "ROM/multface.rom"
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system: amstrad-cpc
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required: false
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size: 8192
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md5: 4c9f014e91d407cc6509fad0095ab909
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sha1: 1431ec628d38f000715545dd2186b684c5fe5a6f
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source_ref: "CPCemu 2.5/3.0.2: ROM/multface.rom, ROM_BLOCK filename or ROM Manager entry"
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note: >-
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Romantic Robot Multiface Two ROM. Ships in the ROM folder for the user to
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map into a slot, no path constant naming it.
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