Difference between revisions of "Emulators"

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Latest revision as of 16:31, 24 November 2024

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1 Software Platforms (Full OS independance)
2 Operating Systems
3 Other Platforms
4 Hardware Replacements
5 Peripherals supported in emulators
6 Emulator accuracy checking tools
7 Rewind feature
8 File format specifications
9 Emulation Tools
- 9.1 Cross-Platform Development
- 9.2 Cross-Platform Art
10 Emulator Detection
11 Emulators running on the Amstrad CPC

Software Platforms (Full OS independance)

Java Platform

Emulator name	External link	Current version	Latest release	Developer tools	Amstrad Plus	Also emulates	License
Arnold Jnr	[1]		Aug 27, 2001	❌	❌	-	Open source
JavaCPC Desktop	[2] JavaGX4000 CPCInAJar	3.0.2	Apr 8, 2022	✅	✅	KC Compact	Donationware & Open source
JEMU	[3]		Feb 19, 2007	❌	❌	ZX Spectrum, ZX80/81, BBC Micro, VZ-300	Open source
WebCPC	[4] JavaCPC Applet	r15	Dec 31, 2010	❌	❌	-	Open source

Note: Java applets have been discontinued and removed in all major web browsers. So JEMU and WebCPC could belong to the "Discontinued OS" part of this article.

JS / Wasm / Web Platform

Emulator name	External link	Current version	Latest release	Developer tools	Amstrad Plus	Also emulates	License
CPCBox	[5] [6] BZH Games	beta	Dec 28, 2013	❌	❌	-	Freeware
CrocoDS	[7] Repo		Jun 9, 2020	⚠️	❌	-	Open source
Emularity (MAME)	[8] JSMESS Classic Reload Internet Archive CPC Software Library		Jan 27, 2024	❌	✅	Tons of vintage computers, game consoles and arcade systems	Open source
Roland	[9] JuegoTk		Sep 24, 2011	❌	❌	-	Open source
Ronald	[10] Repo		Apr 1, 2024	⚠️	❌	-	Open source
RVMplayer	[11] Amstrad ESP	0.1.1	May 6, 2023	❌	❌	ZX Spectrum	Freeware
Tiny Emus	[12] CPC UI yakc zpz mini CPC Online OldGames WebGL 3d 8-bit Arcade Room acpc.me Retro Store BZH Games Sean's CPC Games Amstrad CPC Games		Mar 22, 2024	✅	❌	KC Compact, ZX Spectrum, VIC-20, Commodore 64, Acorn Atom, KC 85, KC 87, Z9001, Z1013, LC80	Open source
Xiragon	[13]		Nov 28, 2012	❌	❌	-	Open source

LibRetro (API for emulators)

Emulator name	Type	External link	Current version	Latest release	Developer tools	Amstrad Plus	Also emulates	License
libretro-cap32	Emulation core	[14]	4.5.4	Dec 18, 2023	-	✅	-	Open source
libretro-crocods	Emulation core	[15]		Oct 16, 2024	-	❌	-	Open source
LRMAME	Emulation core	[16]	0.271	Nov 1, 2024	-	✅	Tons of vintage computers, game consoles and arcade systems	Open source
SugarLibRetro	Emulation core	[17] (wraps independent lib CPCCore)	git	Jan 10, 2020	-	✅	-	Open source
EmuVR	Frontend	[18]	1.0.11	Dec 24, 2022	❌	-	Depends on emulation cores	Donationware
Hackable Console	Frontend	[19]		Mar 27, 2022	✅	-	Depends on emulation cores	Open source
RetroArch	Frontend	[20] RetroAchievements	1.19.1	Jun 5, 2024	❌	-	Depends on emulation cores	Donationware & Open source

Several distributions also exist based on RetroArch: RetroBat, Lakka, RetroPie, Batocera, Recalbox, RGB-Pi OS

Operating Systems

Desktop

Emulator name	External link	Windows	macOS	Linux	Current version	Latest release	Developer tools	Amstrad Plus	Also emulates	License
ACE	MorphOS and Haiku IRC chan Repo	❌	❌	❌	1.26	Jan 1, 2024	✅	✅	Dozens of CPC hardware expansions thru plugins	Freeware (plugins are Open Source)
ACE-DL	[21] Discord Based on ACE	✅	✅	❗	Quetta	Nov 18, 2024	✅	✅	-	Freeware
AMSpiriT	[22] Discord Forum	✅	❌	❌	1.01 rc	Apr 24, 2024	❌	❌	-	Freeware
Arnimedes	[23]	✅	❌	❌	1.02	Jul 7, 2012	❌	❌	-	Freeware
Arnold	[24] Aeliss fork Arnold TNG macOS AmigaOS PPC	✅	✅	🛠️		May 13, 2017	⚠️	✅	KC Compact, Aleste 520EX	Open source
Caprice Forever	[25]	✅	❌	❌	24.10	Oct 1, 2024	✅	✅	-	Freeware & Outdated sources
Caprice32	[26] Old repo Linux Reloaded Cpc4Rpi CapriceRPI CPC-PI	✅	✅	✅	4.6.0	Oct 8, 2022	⚠️	✅	Aleste 520EX	Donationware & Open source
Clock Signal	[27] Linux Raspberry Pi	❌	✅	✅		Oct 19, 2024	❌	❌	ZX Spectrum, ZX80/81, Enterprise, MSX 1&2, Oric, ColecoVision, Apple II, VIC-20, Atari 2600, Atari ST, Electron, Archimedes, Macintosh, Master System	Donationware & Open source
CoPaCabana	[28]	✅	❌	❌	0.74	Apr 12, 2006	⚠️	❌	-	Donationware
CPC++	[29]	✅	✅	❗	b700	May 31, 2015	❌	❌	-	Freeware
cpc4x	[30]	❌	❌	🛠️	0.26	Dec 11, 2004	❌	❌	-	Open source
CPCEC	[31] Repo CPCE CPCEG	✅	🛠️	🛠️		Sep 9, 2024	⚠️	✅	ZX Spectrum, Commodore 64, MSX 1&2	Open source
cpcec-gtk	[32]	❌	❌	🛠️		Feb 4, 2023	✅	✅	-	Open source
CPCemu	[33]	✅	✅	✅	2.5	Aug 13, 2022	⚠️	❌	-	Freeware
CPCEPower	[34]	✅	✅	✅	2105	Jun 4, 2021	❌	✅	-	Donationware
CPCSharp	[35]	✅	✅	❌	1.0.0-beta1	Apr 7, 2021	⚠️	❌	-	Open source
CPvC	[36]	✅	❌	❌		Sep 30, 2022	❌	❌	-	Open source
CrocoDS	[37] Repo	✅	✅	❌	4.0 beta3	Dec 10, 2023	⚠️	❌	-	Open source
DSP	[38]	✅	✅	🛠️	0.23	Oct 27, 2024	❌	❌	ZX Spectrum, Commodore 64, Oric, ColecoVision, Game Boy, NES, SG-1000, Master System, Game Gear, Super Cassette Vision, PV-1000, PV-2000, Arcade	Open source
ep128emu	[39]	✅	🛠️	🛠️	2.0.11.2	Apr 19, 2019	⚠️	❌	ZX Spectrum, Enterprise	Donationware & Open source
Gemux	[40]	✅	❌	❗		Nov 5, 2024	❌	❌	-	Freeware
MAME	[41] AmigaOS PPC MorphOS Haiku	✅	✅	✅	0.271	Oct 31, 2024	⚠️	✅	Tons of vintage computers, game consoles and arcade systems	Open source
NO$CPC	[42]	✅	❌	❌	1.8	Nov 2, 2000	⚠️	✅	-	Donationware
PC-CPC	[43] Repo	✅	❌	❌	0.1at b29	Nov 17, 2011	⚠️	❌	-	Open source
Retro Virtual Machine	[44]	✅	✅	✅	2.1.17	Sep 3, 2024	❌ Removed	✅	ZX Spectrum, MSX 1, ColecoVision, SG-1000, Master System	Donationware
Roland	[45] Repo	✅	❌	🛠️	0.70	Apr 20, 2017	❌	❌	-	Open source
Ronald	[46]	❌	❌	🛠️		Apr 1, 2024	⚠️	❌	-	Open source
SugarBox	[47] Old site SugarPi	✅	✅	✅	2.0.4	Nov 24, 2024	⚠️	✅	-	Open source
Virtual CPC	[48] Archive	✅	❌	❌	1.1	Aug 8, 2011	⚠️	❌	-	Freeware
WinAPE	[49] CPCwin	✅	❌	❌	2.0b2	Jan 5, 2016	✅	✅	-	Donationware
WinCPC / MacCPC	[50] vbCPC	✅	✅	❌	0.9.2	Jan 22, 2010	✅	❌	-	Freeware
Xcpc	[51] Repo	❌	❌	✅	0.52.1	Sep 8, 2024	❌	❌	-	Open source
XNACPC	[52] CPC3D	✅	❌	❌	1.0	Nov 11, 2011	❌	❌	-	Open source
ZEsarUX	[53] Haiku	✅	✅	✅	11.0	Jun 6, 2024	⚠️	❌	PCW, ZX Spectrum, ZX80/81, MSX 1, ColecoVision, Spectravideo, Jupiter ACE, Sam Coupe, SG-1000, Master System, Sinclair QL, MK14, Z88	Donationware & Open source

Legend: ❗= No Raspberry Pi / ARM build ; 🛠️ = Build it yourself ; ⚠️ = Incomplete tooling

Mobile

Host system	Emulator name	External link	Current version	Latest release	Amstrad Plus	Also emulates	License
Android	andcpc	[54]	1.5.1	Apr 4, 2011	❌	-	Open source
Android	Azimuth	[55]	1.11	Aug 22, 2023	❌	-	Adware and in-app purchases💲
Android	CPCDroid	[56]	1.5.1	Mar 2, 2011	❌	-	Open source
Android	CPCemu	[57]	2.5	Aug 14, 2022	❌	-	Freeware
Android	Droid-CPC	[58]	1.1.01	Dec 15, 2016	❌	-	Commercial💲
Android	MAME4droid 2024	[59] Repo	1.18 (0.271)	Nov 4, 2024	✅	Tons of vintage computers, game consoles and arcade systems	Open source
iOS	CPCemu	[60]	2.5	Aug 13, 2022	❌	-	Software available on request
iOS	CrocoDS	[61] Repo	2.1	Jun 21, 2013	❌	-	Open source
iOS	MAME4iOS	[62]	2022.5	Dec 12, 2022	✅	Tons of vintage computers, game consoles and arcade systems	Open source

Discontinued OS

Host system	Emulator name	External link	Current version	Latest release	Amstrad Plus	Also emulates	License
Acorn RISC OS	!CPC	[63] [64]		Jul 28, 1996	❌	-	Open source
Acorn RISC OS	!CPCemu	[65]	1.21	Mar 22, 2016	❌	-	Open source
AmigaOS m68k	A-CPC	[66]	2.0	Mar 30, 2002	✅	-	Open source
AmigaOS m68k	Ami-cpc	[67] Ami-cpc2	0.46	Jan 21, 1998	❌	-	Open source
AmigaOS m68k	CPE	[68]		Feb 24, 1995	❌	-	Open source
AmigaOS m68k	EmuCPC	[69]	0.7	Sep 15, 1996	❌	-	Open source
AROS	Arnold	[70]		Oct 24, 2010	✅	-	Open source
AROS	Caprice32	[71]	4.2.0	Oct 23, 2010	❌	-	Open source
BlackBerry OS	BB-CPC	[72] (dead link)	1.0.1.3	Jul 15, 2013	❌	-	Commercial💲
Classic Mac OS	CPC++	[73]	1.3.2	Oct 6, 1997	❌	-	Shareware💲
DOS	AdvanceMESS	[74]	3.9	Sep 8, 2018	✅	Tons of vintage computers and game consoles	Open source
DOS	Arnimedes	[75]	0.8a	Apr 15, 2000	❌	-	Freeware
DOS	Caprice32	[76]	1.11	Sep 20, 1999	❌	-	Open source
DOS	CPC	[77]	0.55b	May 16, 1997	❌	-	Freeware
DOS	CPC-em	[78]	0.4	Jul 7, 2004	❌	-	Open source
DOS	CPCE	[79]	1.94	Jun 2, 2011	❌	-	Freeware
DOS	CPCemu	[80]	1.5	Jul 7, 1998	❌	-	Freeware
DOS	CPE	[81]	5.2	Apr 21, 1997	❌	-	Open source
DOS	NO$CPC	[82]	1.8	Nov 2, 2000	✅	-	Freeware
DOS	PC-CPC	[83]		Feb 3, 1998	❌	-	Open source
DOS	RWCPC	[84]		Mar 23, 1995	❌	-	Freeware
DOS	SIMCPC	[85]		Dec 10, 1989	❌	-	Shareware💲
DOS	YAGE	[86]	0.91	Oct 24, 1998	❌	-	Freeware
EXOS	Software CPC Emulator	[87] [88]	1.3	Jan 11, 2013	❌	-	Open source
Maemo	CPCm	[89]	1.20-1	Apr 27, 2010	❌	-	Open source
MSX-DOS	EMU6CPC	[90]		Dec 17, 2018	❌	-	Freeware
OS/2	SDLMAME	[91]	0.170	Jan 30, 2016	✅	Tons of vintage computers, game consoles and arcade systems	Open source
Palm OS	CaPriCe for Palm OS	[92]	2.8	Jun 28, 2011	❌	-	Open source
Palm OS	CoPaCabana	[93]	0.75	Dec 4, 2007	❌	-	Freeware
Pocket PC	PocketCaprice	[94]	0.9	Aug 19, 2007	❌	-	Freeware
SunOS	CPC++	[95]	1.3.0	Feb 22, 1997	❌	-	Shareware💲
Symbian	S60-CPC	[96]	0.74	Feb 21, 2006	❌	-	Open source
Windows 9x	CPC-em	[97]	0.3	Jan 22, 2004	❌	-	Open source
Windows 9x	MTMW	[98]	1.30B	Jan 11, 2000	✅	ZX Spectrum, ZX80/81, Enterprise, Jupiter ACE	Freeware

Other Platforms

Home Consoles

You can use RetroArch for Amstrad CPC emulation on Apple TV, Android TV, Nvidia Shield, Steam Link, Xbox One, Xbox Series, PS2, PS Vita TV, GameCube, Wii, Wii U and Switch. Or you can use these stand-alone CPC emulators:

Host system	Emulator name	External link	Current version	Latest release	Amstrad Plus	Also emulates	License
Microsoft XBOX	ArnoldX	[99] [100]	v5	Apr 20, 2010	✅	-	Freeware
Microsoft XBOX	CoinOPS (RetroFE)	[101]	5	Oct 18, 2012	❌	Tons of vintage computers, game consoles and arcade systems	Freeware
Microsoft Xbox 360	XNACPC	[102]	1.0	Nov 11, 2011	❌	-	Open source
Nintendo Wii	Wiituka	[103]	0.98.8	May 15, 2009	❌	-	Open source
Sega Dreamcast	CPCast	[104]		May 6, 2006	❌	-	Freeware
Sega Dreamcast	DreamCPC	[105]	Alpha 3	Oct 16, 2005	❌	-	Freeware
Sony PS2	CPC-em	[106]	0.4	Dec 22, 2004	❌	-	Freeware
Sony PS3	Caprice32	[107]	4.1.0 DBG	Apr 9, 2012	❌	-	Open source

Handheld Consoles

Note: Android-based handheld consoles (Razer Edge, Ayn Odin Pro, Retroid Pocket Flip, GPD XP, ...) will work with stand-alone Android CPC emulators or with RetroArch, same as an Android phone.

You can use RetroArch for Amstrad CPC emulation on PSP, PS Vita, DS, 3DS, Switch, Steam Deck, RetroFW, Miyoo, OpenDingux and ArkOS. Or you can use these stand-alone CPC emulators:

Host system	Emulator name	External link	Current version	Latest release	Amstrad Plus	Also emulates	License
Dingoo A320 / A330	Pituka Dingux	[108]	0.8pre	Aug 19, 2010	❌	-	Open source
Dingoo A320 / A330	Dingux-CAP32	[109]	1.1.2	Oct 17, 2009	❌	-	Open source
GamePark Caanoo	Caanoo-CAP32	[110]	1.1.3	Apr 24, 2011	❌	-	Open source
GamePark GP2x	CapriceGP2x	[111]	0.5	Feb 22, 2006	❌	-	Open source
GamePark GP2x	GP2X-CAP32	[112]	1.5.1	Aug 29, 2009	❌	-	Open source
GamePark GP32	Pituka GP32	[113]	1d	May 15, 2010	❌	-	Open source
GamePark Wiz	Wiz-CAP32	[114]	1.1.0	Aug 29, 2009	❌	-	Open source
GCW Zero	Dingux-CAP32	[115]	1.1.2	May 25, 2014	❌	-	Open source
JXD S5110 / S601 & Yinlips G18	JXD-CAP32	[116]	1.1.1	Oct 27, 2012	❌	-	Open source
Nintendo DS	AmeDS	[117]	4.0	Apr 25, 2010	❌	-	Freeware
Nintendo DS	CrocoDS	[118] Repo	2.0	Nov 9, 2007	❌	-	Open source
Nintendo GameBoy Advance	Mini Amstrad Emulator	[119]		Dec 26, 2005	❌	-	Open source
Odroid GO	CapriceESP32	[120]		Dec 3, 2020	❌	-	Open source
OpenDingux	CrocoDS	[121] Repo		Jan 15, 2020	❌	-	Open source
Pandora	Pandora-CAP32	[122]	1.1.0	Jun 27, 2010	❌	-	Open source
Sony PSP	Caprice32 PSP	[123]	4.2.0.2	Nov 28, 2007	❌	-	Open source
Sony PSP	CPCPSP	[124]	0.1	Dec 24, 2005	❌	-	Freeware
Sony PSP	PSPCAP32	[125]	1.5.1	Aug 21, 2009	❌	-	Open source
Trimui Model S	Arnold Trimui	[126]		Oct 19, 2021	✅	-	Open source

FPGA

CPC TREX CPC-One TurboCPC core by TobiFlex running on different FPGA boards
CPC FPGA CPC emulation by Ranulf (Ralferoo) Doswell, running on a custom made FPGA board
FPGAmstrad CoreAmstrad CoreDocAmstrad Translation by Renaud (Freemac) Hélias of JavaCPC from Java into VHDL for MiST board
CPC for MiST and MiSTer Started by Alexey (Sorgelig) Melnikov as a port of CoreAmstrad, but every module has been either rewritten or replaced
CPC2 Project CPC emulation running on a Cyclone V FPGA board
AmstradCPC core Based on McLeod's core and running on a ZXTres FPGA board

Hardware Replacements

Just CPC4ATX CPC-ITX CPC clones made from NOS chips
CPC464-2mini Miniaturised CPC 464
CPC Modular Modular Amstrad CPC compatible computer
Amstrad CPC Portable World's first battery-powered portable Amstrad CPC
CPC 464/6128 replica PCBs To be used as a direct replacement to the original PCBs
ESP32 TinyCPC Port from CPC-em emulator to TTGO VGA32 v1.x board with ESP32
CPCESP ESP32 based Amstrad CPC emulator
SymbOSVM SymbOS for modern 32/64bit hardware

Chips

MCLZ8 z80-open-silicon Z80 emulators to be used as drop-in replacement
Nuked-MD-FPGA A-Z80 Verilog Z80 implementations reverse engineered from decapped chip Baltazar Ken Shirriff Instruction decode PLA table Technical documentation
Visual Z80 Remix Z80 Explorer Netlist-level ultra accurate Z80 simulators
Forum thread Reverse engineered Gate Array by Gerald from decapped chips Ash Evans Gyorgy Szombathelyi AMSGateArray Subsequent Verilog/VHDL implementations Signals analysis by Bread80
ASIC and Pre-ASIC Gate Array Z80 CPU HD6845SP CRTC AY-3-8912 PSG NEC D765 FDC Die shots of decapped CPC chips. How to: Optically decode the ROM of a decapped chip Automate ROM decoding Decap, image and reverse engineer the C128 PLA chip Reverse engineered Oric ULA chip
AY_FPGA AY-3-8912 FPGA replacement with few extra features
Multi-CRTC Board Host and select between multiple CRTC chip types in one CPC

Floppy drives

SDiskEmul Floppy-drive emulator released in 2007. Abandoned now. Supports DSK, EDSK disk-images
HxC Floppy Emulator Commercial floppy-drive emulator. Supports directly DSK, EDSK, HFE disk-images. IPF, CTRAW, SCP disk-images supported through conversion to HFE disk-image [127]
FlashFloppy Open source floppy-drive emulator for the ubiquitous Gotek hardware. Supports DSK, EDSK, HFE disk-images
GreaseWeazle Open source USB floppy adapter Flux reader/writer
SuperCard Pro Claims to be the most advanced flux level copier/imager/converter system
KryoFlux Proprietary floppy adapter Flux reader/writer
Pauline FPGA-based floppy-drive dumper and emulator
OmniFlop Universal floppy disk reader, writer, and tester for Windows. Supports over 280 floppy disk formats
DDI-3 USB floppy-drive emulator with an integrated FDC chip, floppy data separator and AMSDOS ROM for CPC464. Current evolution DDI-6 has also integrated a RAM/ROM box
DriveRDY Emulates the Ready signal necessary for floppy drives on Amstrad machines

Tapes

TZXduino MAXduino Abatape Arduino-based tape deck emulator. Supports many formats of tape-images including CDT and TZX
SVI-CAS Digital Tape Drive for Playback & Recording. Supports many formats of tape-images including CDT and TZX
tapDancer [128] Chrome and Android app that plays back many formats of tape-images including CDT and TZX
PlayUEF Web-browser based tape deck emulator, supporting CDT and TZX tape-images

Cartridges

CPC-plus-cartridge Different PCB designs and code to make a CPC-plus cartridge
Amstrad Multicart 16-in-1 cartridge for the GX4000 or Amstrad Plus computer
C4CPC Cartridge replacement for the Amstrad Plus range and the GX4000
Flash+ cartridge Amstrad CPC+ GX4000 reflashable cartridge
M4 Board Supports CPR cartridges, among many other features

Printers

Amstrad CPC Printer Emulator [129] Arduino-based CPC printer emulator that can output text, markdown or HTML
Retro-Printer Plugin module for the Raspberry Pi that makes it possible to connect retro computers to modern USB or network printers
ESCParser Command-line utility, ESC/P printer emulator that can output PostScript, SVG or PDF

Other

LensKey LensLok copy-protection decoder for Windows
vga4cpc VGA output for Amstrad CPC based on Raspberry Pi Pico
Sinden Lightgun LCD-compatible lightgun

Peripherals supported in emulators

Mass storage devices

Dobbertin Harddisc is emulated by MAME
uIDE is emulated by Arnold
Symbiface II IDE/PATA interface or compatible (X-Mass, Cyboard) is emulated by ACE, ACE-DL, Caprice Forever, MAME, WinAPE, WinCPC, Arnold, Virtual CPC
Albireo is partially emulated (no direct sector) by ACE, ACE-DL, Caprice Forever
M4 Board is emulated by CPCemu
Vortex Winchester Drive, IDE8255, USIfAC / ULIfAC, Symbiface3 / RSF3, Gotek direct access mode are not supported

Network devices

There is a plethora of serial communication devices (using RS232, USB, SPI, Modem, Teletext, Virtual Net 96, etc...) on Amstrad CPC:

Amstrad/Pace RS232 Serial Port is emulated by MAME
Other devices are not supported

Higher-level Ethernet or TCP/IP network devices are much less common:

M4 Board Wifi or compatible (Symbiface 3) is emulated by CPCemu
CPC-ENet, Net4CPC, Fujinet are not supported

Audio devices

SSA-1 speech synthesizer is emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, MAME
Dk'Tronics speech synthesizer is emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, MAME
Techni-Musique speech synthesizer is emulated by ACE, ACE-DL, Caprice Forever
Amdrum is emulated by ACE, ACE-DL, JavaCPC, MAME, WinAPE
Digiblaster is emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, MAME, WinAPE, WinCPC, CPCEC, CPCEPower, Virtual CPC
PlayCity is fully emulated by ACE, ACE-DL, MAME, Arnold, SugarBox. It is partially emulated (no CTC) by Caprice Forever, JavaCPC, CPCEC
Play2CPC is partially emulated (no FM and no digidrums) by ACE, ACE-DL
Willy OPL3 is emulated by ACE, ACE-DL
Willy MIDI is emulated by ACE (software synth emulation on Haiku, MIDI OUT support on MorphOS)
Music Machine (Sampling/Playback/MIDI ports), Ultimate MIDI Board, Speak&SID, LambdaSpeak, Amsdap MoonSound, Amsdap MP3 Player, Amsdap SE-One (MP3/Radio), CPC Radio, Romba, CPC Booster are not supported

Note: all RS232 serial port devices (USIFAC, Amstrad Serial Interface, etc...) and USB port devices with direct control (Albireo, etc...) can also be used as MIDI ports.

Graphics devices

CPC graphics display expansions (CRTC Type 5, Amsdap GFX9000) are not supported.

CPC graphics acquisition devices (Dart Scanner, VIDI digitizer, Digitaliseur Ara) are not supported.

CPC printers are poorly supported. The only emulators that at least do some print rendering emulation are JavaCPC and Caprice Forever.

Input devices

Some lightguns / lightpens are emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, CPCEC, CPCEPower, Virtual CPC, PC-CPC, Wiituka.

CPC mouse support is as follows:

AMX mouse (1-bit axis, 3 buttons (CPC) / 2 buttons (CPC+)) or compatible (Imperium Solo, Dk'Tronics Genius adapter, DIY GEOS adapter, Atari-ST mouse adapter, PS2Mouse, Marconi Trackerball) is emulated by ACE, ACE-DL, Caprice Forever, WinAPE, Arnold, Virtual CPC, CPCemu, Retro Virtual Machine
Kempston mouse (8-bit axis, 2 buttons) is emulated by ACE, ACE-DL, Arnold
Reisware mouse (8-bit axis, 2 buttons) is emulated by CPCemu
Symbiface II PS/2 mouse (6-bit axis, 5 buttons, scroll wheel) is emulated by ACE-DL, Caprice Forever, MAME, WinAPE, Arnold, CPCemu
MultiPlay mouse (4-bit axis, 3 buttons) or compatible (Symbiface3 / RSF3 mouse) is emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, Arnold, Retro Virtual Machine
Albireo mouse (8-bit axis, 3 buttons), Imperium Solo custom mode (6-bit axis, 3 buttons) are not supported

Note: AMX and MultiPlay are the most widely supported mice in CPC programs.

Hacking devices

Multiface II is emulated by ACE, ACE-DL, Caprice Forever, JavaCPC, MAME, WinAPE, Arnold
HackIt is emulated by ACE-DL, Arnold
Mirage Imager is emulated by ACE
Transtape is emulated by MAME
Programmers Development System is emulated by MAME
Demon Development Cartridge, Action Replay AMX, Disc Wizard are not supported

Emulator accuracy checking tools

Colorimetry

CPC DiAG Raster Toutes les couleurs du CPC Couleurs Les split-rasters Mir'Color Test Interlace Color Infinite Colours Mode 1 Tramage et Choix des Couleurs FED Colour calibration
Minor difference in colorimetry between CPC and Plus On CPC (not Plus!), green half-intensity is significantly higher than red and blue half-intensities
Major difference in colorimetry between the real Amstrad displays and emulators display. CPC DiAG shows clearly why, by demonstrating the weak response of Amstrad monitors to the Red component:

Border 8 on real CPC
Border 8 on real Plus
Border 8 on emulators
Palette on real CPC
Palette on real Plus
Palette on emulators
Still The One on real CPC
Still The One on emulators
CPC DiAG on real Plus
CPC DiAG on emulators
Scanlines on GT65
Slot mask on CTM
CRT mask types

CPC DiAG also shows that the primary colours themselves are a bit different. Blue is more vivid and Green is less fluorescent on Amstrad displays.
Colours are less saturated and black is not as profound on CRT monitors than they are on modern displays.
On CRT displays, bright pixels will spill on their neighbours while dark pixels will get eaten by their neighbours (ie. bright pixels are bigger than dark pixels on CRT displays), affecting dithered colours. This effect is absent on LCD displays.
The usual scanline effect of CRT monitors is barely noticeable on the Amstrad CTM colour monitor. But it is very pronounced on Amstrad monochrome monitors.
The slot mask is the texture that is visible in the CTM colour monitor. CRT masks do not exist on monochrome monitors.

Graphics

🔥Shakerland Ultra accurate CRTC documentation and its associated CPC testing tool
5KB 2 (tweakable demo) HSYNC test CRTC Programmierung Côté Gamers Screen Effect Blitter File:CheshireCat - Scroll hard en Basic.dsk [136] Out-Screen II CRTC editor Control del CRT CRTC testing tools
Vertical and Horizontal 1-pixel mode1 hardware scroll for all CRTCs File:Lister-of-smeg vertscroll4.dsk Smooth CRTC Register 3 scrolling test Skate Wars Jinks Out of this World Killer Cobra Edge Grinder Relentless Corsair Trainer Warhawk Mission Genocide Axys Red Sunset Ghosts'n Goblins Legend of Kage Profanation Super Cauldron Smooth CRTC R3/R5 hardware scrolling
BSC 91 Voyage 1993 OVL '96 Byte 98 Divine Paradise Power System Prodatron Longshot Amazing KKB First Hage's First New Age Flore Dentro Chany Dream End S&Koh Overflow Previews Mystery Little One Freedelire Spy Hunter Scroller Big'O Full'O Dem'O Sea You Soon Plasma Wobbler Mad Rast Odyssey Synergy Early CRTC demos
Ze Meeting 2003 Camembert 4 DemoIzArt Not Dead Croco Chanel Tire Au Flan Arôme Tomate Twistimus DTC Synergy 2 CRTC demos from 2000s
OSC #0 OSC #1 Still Rising Still the Bests Still Scrolling River Scroll Scroll Factory Battro Bloc Us Wake Up Wunderbar Cookie Yet Another Plasma Isometrikum Logon's Run Octopus Pocus Sugarlumps CRTC demos from 2010s
OSC #2 OSC #3 Stand Up The One Swingin' Return of the Droid Mike's Scrollers Foursome Checkmate Debris Ghost Nop Latest CRTC demos
Points Barres (Mode 3) New Mode "Mode 5" Viewer Raster Slideshow Brutal Deluxe Rhino-Raster Split-Rasters Test CRTC1 Crazy Ball Trailblazer Fugitif Sudoku Master Flush Wishes You a Happy New Year Pixel Free Overscan Megatext Gozeur Intro 2 Interlace viewer Interlaced 800x600 Interlace Climax Kvety Flipraster Perfect Pix Paint Bat-Moule Tetris Imperial Mahjong Special graphics modes Mode EGX Mode R Mode 5 Technical explanations
Prehistorik II (screen calibration) Mire Chany Dream 5 4 Sins TV Noise Climax-G Nice Picture Show Fatal Beauties JavaCPC Overscan Pixel Nation Twinblast MCS 6 Schadel Scandinavian Flag Kill JLCS Deleting Disc Plasma Pas Cher Wavy Vagues sur l'écran Bildschirmverzerrer Thunder Blade (292 lines) Bonanza Bros (295 lines) Turrican (296 lines) Wonder Boy (296 lines) Sliders (330 lines) Rastan (336 lines) To test the VDU
Octoplex (crtc1) Dynamic Duo (crtc1) Druid II (crtc1) Legend of Steel (crtc1) 007 The Living Daylights (crtc1) FMR (crtc1) Some known bugs on real CRTCs
Welcom-X 2 (crtc0) Madness (crtc1) 5KB 1 (crtc1) Scrolling Hard Vertical (crtc2) Some programs that only run correctly on one type of CRTC

Audio

Peripherals

SSA-1 software list Dk'Tronics software list TMPI software list To test speech synthesizers emulation
Cocoon Player Bordelik 4 Digital Orgasm Bloood Digitracker Symbiosis Prodatron MDL packs File:DigiTracker Amdrum.zip [137] Amdrum VGMplay OPL3 VGM pack BluePillCPC To test Digiblaster, Amdrum, Willy OPL3 and Willy MIDI soundcards emulation
West Phaser Gunstick Trojan LP-1 To test lightguns and lightpens connected to joystick port Magnum Light Phaser SkeetShoot The Enforcer Dk'Tronics Light Pen Light Pen Mark II Dart Light Pen FutureOS To test lightguns and lightpens connected to expansion port
The Key Le Manoir de Mortvielle Pro-Design Cherry Paint EasiArt GPaint AMX Art Advanced OCP Art Studio Max Desktop Worktop DES SymbOS FutureOS MultiPlay To test AMX Mouse and MultiPlay emulation
Tasword Tasprint Print Master ProText ProType ProPrint Miraprint Qualitas Plus BrunWord CPC-Word MicroDesign Page Printer Stop Press (AMX Pagemaker) X-Press Page Publisher PowerPage 128 StarMouse Impr'Image Speedtrans screen dump Kdump Printer Pac II Impression RSX Imprimante Scrypte Machine à écrire DemoImp To test printer emulation
HDCPM FutureOS SymbOS UniDOS UniLoad LiliCPC M4FE To test RTC and mass-storage emulation
RulezCharge CPChessNet Ewen KCNet utilities SymbOS UniDOS To test the network emulation
X-MEM FW 32 Roms Booster Roman CatRun CowSay iMPdraw iMPtiles Graph'OS Nirvana Utopia Hexam Orgams YANCC HDCPM FutureOS SymbOS UniDOS ROM Games To test ROMboard emulation
Alcon 2020 Hyperdrive Puzzle Bobble Revenge of Trasmoz Crazy Piri Chronicle Converted GX4000 Software FutureOS SymbOS UniDOS Cartridge Creator To test Plus2CPC or compatible (Play2CPC, M4 Board) CPC cartridge slot expansion
Multiface Protector Anti-Multiface II software list RX 220 War in Middle Earth Zap't'Balls advanced The Insider MF2RR Technical documentation [138] To test Multiface II emulation
LensLok Dandanator 8bit Printer Ports Exotic hardware components that are essential for some CPC software and should therefore be emulated
Everything else is a nice bonus

Copy-protection

FDC test suite Disk drive tests CDT/TZX test suite Set of tests by arnoldemu
Azimut Locator Tape Speed Checker Motor Control Odd Border Ultra Son Catalogueur de Cassettes Tape Utility Soft-Lok Soft-Arc Deconnect NoAMSDOS software list Computer Hits Marmelade Mickey Mouse Basil Mask Split Personalities Frank Bruno's Boxing Baudload software list Keytone software list Tape Counter software list Loading Screens slideshow To test Tape emulation
Musical Loader FatMag 2 FatMag 2 technical analysis 5KB 3 Backtro Unique The Demo Fres Fighter II Turbo CPC 30th Anniversary Midline Process Can Robots Take Control PhX Batman Forever Pinball Dreams R-Type 128K Nheredia Doomsday Lost Echoes The Elves of Maroland Orion Prime Musical loader, Multi-drives, 3.5 inch (dual-head and 80 tracks) floppy drives support House of Usher (5.25 inch) ParaDOS software list
RPM DskTest Discover Dir Doktor Optimize Crazy Dlfrsilver Dump Tool Test Suite Format II Magic Transfert Magic DOS DOS-copy ParaDOS Xexor Discology Hercule II OddJob Master Disc UltraDisc Disc+Ultra Disc'o'Magic Crime Multi Mark Demonstration of KBI protection Protector To test FDC emulation
FatMag (HFE version) BND4 Invitro (sick mode) Open Tower Defense Rigorous FDC tests by Roudoudou Disk Swapping Autodetect software list Superpix Bad Mag Issue 2 Disk swapping detection Unique Diskmaker (generating discs in noiseload format) Big Cheese 2 (FDC VU-meter effect) Sphaira (accessing the 3rd drive) The Shadows of Sergoth (unformatted track)
Weak Sectors Custom Gaps Custom Gap2 Sector SizeX Sector Size8 Sector Size7 Sector Size6 Sector Erased 64 Sectors Overlap Custom Rémi Herbulot Brice Rivé Rubi MBC Protected software lists
Prehistorik Profession Détective Emlyn Hugues Arcade Quiz Other copy-protection schemes Dark Sceptre Krypton Factor Works only on older floppy drives TokiMap Technical explanation Unreliable FDC loader
1001 BC Scott Winder Reporter Holocauste Speedlock AAAA Destructive copy-protection Sir Lancelot Secret Defense M'enfin Turbo Cup Erebus Le Passager du Temps Anti-copy bug software list Exotic copy-protection MotorON software list
Protection schemes documented Gaps Latis LensLok Copy-protection in EDSK images Implementation in SugarBox emulator FDC blog articles Autoboot Amsdos disk format Disk structure DiscSys Speedlock K7 1987 Speedlock D7 1989 Technical explanations

Other

Into the Eagle's Nest Technical explanation Floating bus making the bottom border appear black on CPC, purple on 464+ and green on 6128+
The Abduction of Oscar Z Technical explanation Neat unintended colour gradient effect on non-CTM monitors
The Eternal Light Druid & Droid Paulina's Potions Claudia BMP Converter Snoozing Programs that only run fine on flawed emulators but are broken on real machines
Equalizor Revolog Technical explanation Some believe it could be a random hardware bug of CRTC1 chip. But it could also be explained by the LD A,R instruction which is known to be buggy on NMOS Z80 when interrupted.
Get Dexter Different screen transition effect depending on the detected CRTC type Borderline Different demo depending on the detected CRTC type
Space Racer Bob Winner Sapiens (Tape) Mata Hari (Tape) Thai Boxing CPC keyboard detection Jungle Jane 3D Megacode Firmware detection
The Untouchables Batman The Movie Turrican Technical explanation CPC keyboard clash Thunder Blade (6 keys) Agent X II (7 keys) Wishing-Well (8 keys) Score 3020 (9 keys) Simultaneous keypresses for cheat mode
Raytracing in BASIC Reliefs Mathématiques Cherry Blossom Deuligne Julia Fractal Rosetta Mandelbrot Rosetta Pi Spigot Life Highway To Hell Chain Montre To benchmark emulators using their fullspeed mode

Rewind feature

The RetroArch CPC emulator has the most convenient rewind feature: Demonstration. To reverse the game, the user press and hold the rewind button. And at any point, releasing the button makes time goes forward again.

ACE-DL also has a rewind feature, but it is not as good as it could be: Demonstration.

One 128KB snapshot per frame allows 10 seconds of rewind with 64MB (128KB * 50 frames * 10 seconds) of memory for the rewind feature. A more efficient method saves only the previous RAM values that are changed between 2 frames, allowing much longer rewinds (even if the CPC is equipped with 4MB RAM expansion) while using less memory, as shown by the GBA emulator SkyEmu.

For step-back debugging, the emulator just needs to store the time when the previous instruction was executed so that he can go back to that instruction. In the same way, emulators can provide access to the previous HBL, IRQ, VBL, etc.

File format specifications

DSK / EDSK HFE IPF CTRAW SCP File formats of disk-image
CDT / TZX PZX CSW FLAC WAV MP3 File formats of tape-image
CPR cartridge SNA snapshot Other file formats used in CPC emulators
Official SNR session spec Discussion about SNR format Archive of SNR sessions
YM AYC MYM VGM Soundchip logging file formats
CSL Cpc Scripting Language, a macro/scripting system to automate emulators
KCR Game launching configuration

Emulation Tools

CPCDiskXP DiskUtil SugarConvDsk DSK iDSK dsktools edsktool ManageDSK WriteDSK SAMdisk Disk Image Manager sector-cpc HxCFloppyEmulator software Disk Utilities dsk-lua upd765pro Amstrad DSK Explorer Set of tools about disk-images
CPCTapeXP TapeUtil SugarConvTape CDTMaster 2CDT CSW2CDT CDT2WAV wav2tzx PZXtools Set of tools about tape-images
CPRTools cpr-tools No$cart UniDOS Cartridge Creator Set of tools about CPR cartridge-images
WinImage, DiskExplorer, Ultimate Imager CP/M Image File Explorer Access and edit hard-drive images
CPC Analyser ImHex CPCRomHacks Other tools
Emulator tooling UI screenshots of tooling in CPC emulators
WinAPE WinCPC JavaCPC Caprice Reloaded Caprice Forever Emulators with an integrated Z80 Assembler

Cross-Platform Development

Java Z80Assembler Glass Pasmo UZ80 Rasm BASM zasm vasm SjASMPlus cpctools cpclib bndbuild Disark MDL ASM Code Lens KC IDE Tools for CPC cross-development in Z80 Assembler
SDCC SDCC vs PhrozenC SDCC vs z88dk z88dk can be used with SDCC and provides a huge library ccz80 Phactory cpc-dev-tool-chain CPCtelera WinCPCtelera Cross-platform CPC development in C
Quiche Turbo Rascal Syntax Error CPC demo made with TRSE TRSE CPC tutorial CPC cross-development in Pascal
Millfork Wiz Cowgol Java Grinder CPC cross-development with other programming languages
Multi-Platform Arcade Game Designer The most user-friendly Windows tool for creating CPC games
SymbOS C Compiler Quigs IDE SymbOS application development
CPC Basic cross-compiler CPCBasic Unchained Amstrad Basic Helper SDKCPC IDE 8BP CpcAlive ugBASIC ugBASIC IDE Cross-platform CPC development in BASIC
ZX0 Salvador ZX0 decompressor in BASIC Comparative study Compression tools

Cross-Platform Art

ConvImgCPC ImgToCpc img2cpc cpclib-img2cpc Magick2CPC gfx2crtc DaDither Dithertron Martine Splitraster+ UniPixelViewer UniPixelViewer tutorial Image converters from PC to CPC
Multipaint GrafX2 CPCPaint Amstrad CPC Tools Kit Retro Game Asset Studio AkuSprite Editor Sprite Creator Aseprite LibreSprite Maped Cross-platform CPC pixel art editors
vgm-conv YMtoVGM YMcruncher Ym2Mym wav2ay WaoN (wav2midi) YMtoMIDI Music converters
CHIPNSFX Vortex Tracker II WYZTracker Arkos Tracker Furnace Cross-platform CPC music creation suites

Emulator Detection

If you want to promote usage of real CPC computers, you can detect CPC emulators by:

Checking if the memory is initialised with zeroes, as RAM in real machines is not initialised during boot. Source
Configuring the CRTC to stop refreshing part of the RAM. This behaviour has never been emulated. Source

The way to cause the RAM refresh to fail in both a Plus or normal CPC is simply to stop a few bits of the CRTC address changing (ie. never refresh the selected area).
Generally, only the Row address needs to be cycled, so stopping MA0 through MA7 from changing, and stopping the CPU from reading those rows, will cause data to be lost, quite quickly (generally around 4ms).

Playing with the "floating" bus. Using Z80 read I/O commands to write to chip registers. Accessing ghost registers. Using undocumented I/O ports. Writing to multiple chips simultaneously. Changing PPI and PSG ports direction.
Focusing on the minute details in Z80, CRTC, PPI and PAL chips. They are most often wrong in emulators.
Examining the FDC chip. It is only replicated more or less superficially in all emulators because the internals of the chip are still unknown. Many emulators don't even support the FDC SCAN or FORMAT TRACK commands.

Combining these methods will definitely get you a 100% success rate in detecting emulators, even the toughest ones.

Emulator undetected in Open Tower Defense
Emulator detected in Open Tower Defense

Additionally, an Emulator IDs system is available for easier detection of CPC emulators.

On ZX Spectrum, gamedevs are challenging emulators real hard with titles like MEMPTR Snake, Super HALT Invaders Test and Chromatrons Attack.

Emulators running on the Amstrad CPC

Emulator name	External link	Current version	Latest release	License	Emulates
Amstrad BBC BASIC	[139]	2.30	Apr 2, 1986	Commercial💲	BBC BASIC
BASIC 1.1 Fuer CPC464	[140]		Oct 1986	Open source	Locomotive BASIC 1.1
Chip8 CPC	[141] Repo		Nov 12, 2024	Open source	CHIP-8
CPCZVM	[142]		Jul 6, 2019	Open source	Z-Machine
CPvM	[143] Repo	1.0	Apr 17, 2024	Open source	CP/M
Fuzix OS	[144] Repo		Nov 12, 2024	Open source	POSIX (UNIX)
Pac-Man	[145]	1.1	Jun 5, 2014	Open source	Pac-Man arcade
PC-Emulator	[146]		Sep 1986	Hardware💲	IBM PC
Phoenix	[147]		Jan 6, 2019	Freeware	Phoenix arcade
Space Invaders	[148]	1.02	Mar 18, 2017	Freeware	Space Invaders arcade
Vezza	[149] Repo		Jan 7, 2024	Open source	Z-Machine
ZXM	[150]		1993	Freeware	ZX Spectrum
Zym	[151]	0.9	Feb 19, 2022	Open source	Z-Machine

Retrieved from "https://gryzor.info/index.php?title=Emulators&oldid=120331"

Categories:

@@ Line 89: / Line 89: @@
 | [[MAME|Emularity (MAME)]]
 | [https://github.com/db48x/emularity] [http://jsmess.textfiles.com/ JSMESS] [https://classicreload.com/platform/amstrad%20cpc Classic Reload]
-[https://archive.org/details/softwarelibrary_cpc_games CPC Games] [https://archive.org/details/softwarelibrary_cpc_demos CPC Demos] on Internet Archive
+[https://archive.org/details/softwarelibrary_cpc Internet Archive CPC Software Library]
 |
 | Jan 27, 2024
@@ Line 116: / Line 116: @@
 |-
 | [[RVMplayer|RVMplayer]]
-| [https://www.retrovirtualmachine.org/rvmplayer/]
+| [https://www.retrovirtualmachine.org/rvmplayer/] [https://www.amstradcpc.es/doku.php?id=emus Amstrad ESP]
 | 0.1.1
 | May 6, 2023
@@ Line 172: / Line 172: @@
 | Emulation core
 | [https://github.com/libretro/libretro-crocods]
-| 0.1
+|
-| Jul 26, 2022
+| Oct 16, 2024
 | -
 | ❌
@@ Line 182: / Line 182: @@
 | Emulation core
 | [https://github.com/libretro/mame]
-| 0.270
+| 0.271
-| Sep 27, 2024
+| Nov 1, 2024
 | -
 | ✅
@@ Line 268: / Line 268: @@
 | ✅
 | ❗
-| Halloween
+| Quetta
-| Oct 26, 2024
+| Nov 18, 2024
 | ✅
 | ✅
@@ Line 474: / Line 474: @@
 | ✅
 | 🛠️
-| 0.23 wip4
+| 0.23
-| Sep 29, 2024
+| Oct 27, 2024
 | ❌
 | ❌
@@ Line 492: / Line 492: @@
 | [[ZX Spectrum]], [[Enterprise]]
 | Donationware & Open source
+|-
+| [[Gemux|Gemux]]
+| [https://www.cpcwiki.eu/forum/emulators/gemux-cpc/]
+| ✅
+| ❌
+| ❗
+|
+| Nov 5, 2024
+| ❌
+| ❌
+| -
+| Freeware
 |-
 | [[MESS|MAME]]
@@ Line 498: / Line 510: @@
 | ✅
 | ✅
-| 0.270
+| 0.271
-| Sep 26, 2024
+| Oct 31, 2024
 | ⚠️
 | ✅
@@ Line 570: / Line 582: @@
 | ✅
 | ✅
-| 2.0.2
+| 2.0.4
-| Nov 29, 2023
+| Nov 24, 2024
 | ⚠️
 | ✅
@@ Line 650: / Line 662: @@
 |}
-❗= No Raspberry Pi / ARM build
+Legend: ❗= No Raspberry Pi / ARM build ; 🛠️ = Build it yourself ; ⚠️ = Incomplete tooling
-🛠️ = Build it yourself
-⚠️ = Incomplete tooling
 === Mobile ===
@@ Line 716: / Line 724: @@
 | [[MAME4droid 2024]]
 | [http://play.google.com/store/apps/details?id=com.seleuco.mame4d2024] [https://github.com/seleuco/MAME4droid-2024 Repo]
-| 1.7 (0.270)
+| 1.18 (0.271)
-| Sep 27, 2024
+| Nov 4, 2024
 | ✅
 | Tons of vintage computers, game consoles and arcade systems
@@ Line 1,377: / Line 1,385: @@
 *[https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/gate-array-decapped! Forum thread] Reverse engineered Gate Array by Gerald from decapped chips [https://pastebin.com/ZQyL68Hv Ash Evans] [https://github.com/MiSTer-devel/Amstrad_MiSTer/tree/master/rtl/GA40010 Gyorgy Szombathelyi] [https://github.com/codedchip/AMSGateArray AMSGateArray] Subsequent Verilog/VHDL implementations [https://bread80.com/2021/06/03/understanding-the-amstrad-cpc-video-ram-and-gate-array-subsystem/ Signals analysis by Bread80]
 *[https://k3pi.chickenkiller.com/dzi/ ASIC and Pre-ASIC] [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/gate-array-decapped!/msg133264/#msg133264 Gate Array] [https://siliconpr0n.org/map/zilog/z0840008psc-z80cpu/ Z80 CPU] [https://www.seanriddle.com/6845/ HD6845SP CRTC] [http://seanriddledecap.blogspot.com/2023/12/blog-post_31.html AY-3-8912 PSG] [http://seanriddledecap.blogspot.com/2017/01/blog-post_42.html NEC D765 FDC] Die shots of decapped CPC chips. How to: [https://github.com/veniamin-ilmer/decoding_rom Optically decode the ROM of a decapped chip] [https://github.com/travisgoodspeed/gbrom-tutorial Automate ROM decoding] [https://c128.se/posts/silicon-adventures/ Decap, image and reverse engineer the C128 PLA chip] [https://oric.signal11.org.uk/html/ula-dieshot.htm Reverse engineered Oric ULA chip]
+*[https://lotharek.pl/productdetail.php?id=408 AY_FPGA] AY-3-8912 FPGA replacement with few extra features
 *[https://thecheshirec.at/2023/11/21/5-multi-crtcs-a-vendre/ Multi-CRTC Board] Host and select between multiple CRTC chip types in one CPC
@@ Line 1,409: / Line 1,418: @@
 === Printers ===
-*[https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/acpcpe-amstrad-cpc-printer-emulator-(diy)/ Amstrad CPC Printer Emulator] Arduino-based CPC printer emulator that can output text, markdown or HTML
+*[https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/acpcpe-amstrad-cpc-printer-emulator-(diy)/ Amstrad CPC Printer Emulator] [https://github.com/lgv2018/ACPCPE] Arduino-based CPC printer emulator that can output text, markdown or HTML
 *[https://www.retroprinter.com/ Retro-Printer] Plugin module for the Raspberry Pi that makes it possible to connect retro computers to modern USB or network printers
 *[https://github.com/nzeemin/escparser ESCParser] Command-line utility, ESC/P printer emulator that can output PostScript, SVG or PDF
@@ Line 1,497: / Line 1,506: @@
 === Z80 CPU ===
-*🔥[https://www.cpc-power.com/index.php?page=database&lemot=raxoft Raxoft tests] (CPC port of [https://github.com/raxoft/z80test z80test]) [https://github.com/redcode/Z80/wiki/Tests Redcode Z80 tests list with expected results] [https://www.cpc-power.com/index.php?page=detail&num=6346 ZEX] Z80 CPU instruction set exercisers
+*🔥[https://www.cpc-power.com/index.php?page=database&lemot=raxoft Raxoft tests] (CPC port of [https://github.com/raxoft/z80test z80test]) [https://github.com/redcode/Z80/wiki/Tests Redcode Z80 tests list with expected results] [https://www.cpcwiki.eu/forum/programming/program-that-tests-z80-scfccf-undefined-behavior-on-flags/msg244778/ Z80 XCF Flavor] [https://www.cpc-power.com/index.php?page=detail&num=6346 ZEX] Z80 CPU instruction set exercisers
 *[https://www.cpc-power.com/index.php?page=detail&num=298 Arkanoid] [https://www.cpc-power.com/index.php?page=detail&num=460 Boulder Dash] [https://www.cpc-power.com/index.php?page=detail&num=1006 The Great Escape] Using Z80 Interrupt Mode 2
 *[https://www.cpc-power.com/index.php?page=detail&num=2280 Trailblazer (using HALT)] [https://www.cpc-power.com/index.php?page=detail&num=427 L'anneau de Zengara (using Z80 register R)] [https://www.cpc-power.com/index.php?page=detail&num=1299 Light Corridor (Z80 useless instruction prefixes)] [https://www.cpc-power.com/index.php?page=detail&num=735 Dogsbody (accessing non-standard I/O ports)] [https://youtu.be/UVNUD9qRbSI Pinball Dreams (Z80 NMOS only)]
-*[https://zxe.io/software/Z80/documentation/latest/Thanks.html Weird Z80 behaviour] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=48 I/O port allocation] [https://www.grimware.org/doku.php/documentations/devices/gatearray RAM/ROM mapping] Technical documentation
+*[https://zxe.io/software/Z80/documentation/latest/thanks.html Weird Z80 behaviour] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=48 I/O port allocation] [https://www.grimware.org/doku.php/documentations/devices/gatearray RAM/ROM mapping] Technical documentation
 === Diagnostics ===
-*[https://www.cpc-power.com/index.php?page=detail&num=5113 Amstest] [https://www.cpc-power.com/index.php?page=detail&num=17932 Amstrad Diagnostics] [https://www.cpc-power.com/index.php?page=detail&num=6545 STS SysInfo] [https://www.cpc-power.com/index.php?page=database&r1=1&lemot=test%20crtc%20v Test CRTC type] [http://quasar.cpcscene.net/doku.php?id=coding:test_crtc] [http://cpc.sylvestre.org/technique/technique_identifier_crtc.html Identifying CRTC visually] [https://www.cpc-power.com/index.php?page=detail&num=11446 Basic Program Status Window] [https://www.cpc-power.com/index.php?page=detail&num=12584 Version du Firmware Basic]
+*[https://www.cpc-power.com/index.php?page=detail&num=5113 Amstest] [https://www.cpc-power.com/index.php?page=detail&num=17932 Amstrad Diagnostics]  [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/amstrad-diagnostics-rom/msg243665/] [https://www.cpc-power.com/index.php?page=detail&num=6545 STS SysInfo] [https://www.cpc-power.com/index.php?page=database&r1=1&lemot=test%20crtc%20v Test CRTC type] [http://quasar.cpcscene.net/doku.php?id=coding:test_crtc] [http://cpc.sylvestre.org/technique/technique_identifier_crtc.html Identifying CRTC visually] [https://www.cpc-power.com/index.php?page=detail&num=11446 Basic Program Status Window] [https://www.cpc-power.com/index.php?page=detail&num=12584 Version du Firmware Basic]
-*[https://symbos.org SymbOS] [https://www.cpc-power.com/index.php?page=detail&num=6987 RAM Expansion Test] [https://www.cpc-power.com/index.php?page=detail&num=14833 MemTest] [https://www.cpc-power.com/index.php?page=detail&num=14834 RAM Test CRTC4] [https://www.cpcwiki.eu/forum/technical-support/test-ram-de-mcleod-ideafix/ Test RAM de McLeod Ideafix] [https://www.cpc-power.com/index.php?page=detail&num=15739 RAM Check] [https://www.cpc-power.com/index.php?page=detail&num=13386 Testprogram For All ERAM] [https://www.cpc-power.com/index.php?page=detail&num=16010 Test RAM Basic] [https://www.cpc-power.com/index.php?page=detail&num=19185 Xenon 2] [https://www.cpc-power.com/index.php?page=detail&num=12188 Take On Me] [https://www.cpc-power.com/index.php?page=detail&num=14339 Trololo Experiments] [https://www.cpc-power.com/index.php?page=detail&num=19406 Still The One] [https://www.cpc-power.com/index.php?page=detail&num=16084 Post Scriptum] [https://www.cpc-power.com/index.php?page=detail&num=18658 Onescreen Colonies #2 256K] [https://cpcrulez.fr/info-chany-enhanced_edition.htm Chany 512K cracks] [https://www.cpc-power.com/index.php?page=detail&num=14814 Anti-Multiface] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=151 Expanded RAM software list] RAM exercisers
+*[https://symbos.org SymbOS] [https://www.cpc-power.com/index.php?page=detail&num=6987 RAM Expansion Test] [https://www.cpc-power.com/index.php?page=detail&num=14833 MemTest] [https://www.cpc-power.com/index.php?page=detail&num=14834 RAM Test CRTC4] [https://www.cpcwiki.eu/forum/technical-support/test-ram-de-mcleod-ideafix/ Test RAM de McLeod Ideafix] [https://www.cpc-power.com/index.php?page=detail&num=15739 RAM Check] [https://www.cpc-power.com/index.php?page=detail&num=13386 Testprogram For All ERAM] [https://www.cpc-power.com/index.php?page=detail&num=16010 Test RAM Basic] [https://www.cpc-power.com/index.php?page=detail&num=19185 Xenon 2] [https://www.cpc-power.com/index.php?page=detail&num=12188 Take On Me] [https://www.cpc-power.com/index.php?page=detail&num=14339 Trololo Experiments] [https://www.cpc-power.com/index.php?page=detail&num=19406 Still The One] [https://www.cpc-power.com/index.php?page=detail&num=16084 Post Scriptum] [https://www.cpc-power.com/index.php?page=detail&num=18658 Onescreen Colonies #2 256K] [https://www.cpc-power.com/index.php?page=detail&num=15985 A tribute to the sisters] [https://cpcrulez.fr/info-chany-enhanced_edition.htm Chany 512K cracks] [https://www.cpc-power.com/index.php?page=detail&num=14814 Anti-Multiface] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=151 Expanded RAM software list] RAM exercisers
 *[https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [https://www.cpc-power.com/index.php?page=detail&num=4174 CP/M Plus] [https://www.cpc-power.com/index.php?page=detail&num=10030 Phortem] [https://www.cpc-power.com/index.php?page=detail&num=7270 Pac-Man Emulator] [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/464-and-ram-extension/ Behaviour of RAM mode &C3] [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/upgrading-a-cpc-464-in-2022/ More on the issue] RAM expansion hardware bug on CPC464/664
 *🔥[http://www.cpctech.org.uk/test.zip Kevin Thacker's "Acid tests" suite] [https://cpctech.cpcwiki.de/download/test.zip Older version] [https://www.cpcwiki.eu/forum/emulators/amstrad-cpc-'acid'-test/ Forum thread] [http://ace.cpcscene.net/tests:arnold_test_suite Tests results in ACE] Collection of tests which are used to verify emulators operation against real CPC, Plus and expansions
@@ Line 1,533: / Line 1,542: @@
 Cpc diag real.jpg|CPC DiAG on real Plus
 Cpc diag emulator.png|CPC DiAG on emulators
+Scanlines CRT green screen.png|Scanlines on GT65
+CTM Shadow Mask.jpg|Slot mask on CTM
+CRT mask types en-de.svg|CRT mask types
 </gallery>
 * CPC DiAG also shows that the primary colours themselves are a bit different. Blue is more vivid and Green is less fluorescent on Amstrad displays.
 * Colours are less saturated and black is not as profound on CRT monitors than they are on modern displays.
-* On CRT displays, bright pixels will spill on their neighbours while dark pixels will get eaten by their neighbours (ie. bright pixels are bigger than dark pixels on CRT displays). This effect is absent on LCD displays.
+* On CRT displays, bright pixels will spill on their neighbours while dark pixels will get eaten by their neighbours (ie. bright pixels are bigger than dark pixels on CRT displays), affecting dithered colours. This effect is absent on LCD displays.
+* The usual scanline effect of CRT monitors is barely noticeable on the Amstrad CTM colour monitor. But it is very pronounced on Amstrad monochrome monitors.
+* The slot mask is the texture that is visible in the CTM colour monitor. CRT masks do not exist on monochrome monitors.
 === Graphics ===
@@ Line 1,546: / Line 1,560: @@
 *[https://www.cpc-power.com/index.php?page=detail&num=15200 OSC #0] [https://www.cpc-power.com/index.php?page=detail&num=15101 OSC #1] [https://www.cpc-power.com/index.php?page=detail&num=9970 Still Rising] [https://www.cpc-power.com/index.php?page=detail&num=9175 Still the Bests] [https://www.cpc-power.com/index.php?page=detail&num=15298 Still Scrolling] [https://www.cpc-power.com/index.php?page=detail&num=9097 River Scroll] [https://www.cpc-power.com/index.php?page=detail&num=15209 Scroll Factory] [https://www.cpc-power.com/index.php?page=detail&num=2799 Battro] [https://www.cpc-power.com/index.php?page=detail&num=9181 Bloc Us] [https://www.cpc-power.com/index.php?page=detail&num=9248 Wake Up] [https://www.cpc-power.com/index.php?page=detail&num=14230 Wunderbar] [https://www.cpc-power.com/index.php?page=detail&num=14992 Cookie] [https://www.cpc-power.com/index.php?page=detail&num=9589 Yet Another Plasma] [https://www.cpc-power.com/index.php?page=detail&num=15100 Isometrikum] [https://www.cpc-power.com/index.php?page=detail&num=14225 Logon's Run] [https://www.cpc-power.com/index.php?page=detail&num=16068 Octopus Pocus] [https://www.cpc-power.com/index.php?page=detail&num=9502 Sugarlumps] CRTC demos from 2010s
 *[https://www.cpc-power.com/index.php?page=detail&num=18658 OSC #2] [https://www.cpc-power.com/index.php?page=detail&num=19119 OSC #3] [https://www.cpc-power.com/index.php?page=detail&num=19313 Stand Up] [https://www.cpc-power.com/index.php?page=detail&num=19024 The One] [https://www.cpc-power.com/index.php?page=detail&num=18676 Swingin'] [https://www.cpc-power.com/index.php?page=detail&num=18846 Return of the Droid] [https://www.cpc-power.com/index.php?page=detail&num=19214 Mike's Scrollers] [https://www.cpc-power.com/index.php?page=detail&num=18790 Foursome] [https://www.cpc-power.com/index.php?page=detail&num=19004 Checkmate] [https://www.cpc-power.com/index.php?page=detail&num=18760 Debris] [https://www.cpc-power.com/index.php?page=detail&num=19453 Ghost Nop] Latest CRTC demos
-*[https://www.cpc-power.com/index.php?page=detail&num=76 Les Mondes Parallèles] [https://www.cpc-power.com/index.php?page=detail&num=66 Paranoia] [https://www.cpc-power.com/index.php?page=detail&num=78 Molecularr 2] [https://www.cpc-power.com/index.php?page=database&lemot=megablasters&cats=100 Megablasters] [https://www.cpc-power.com/index.php?page=detail&num=12649 Quadraster] [https://www.cpc-power.com/index.php?page=detail&num=3876 Inferno] [https://www.cpc-power.com/index.php?page=detail&num=2369 Groops] [https://www.cpc-power.com/index.php?page=detail&num=3963 Sudoku Master] [https://www.cpc-power.com/index.php?page=detail&num=10009 Overkoban] [https://www.cpc-power.com/index.php?page=detail&num=17786 Prince Dastan Sokoban Within] [https://www.cpc-power.com/index.php?page=detail&num=17610 Deva Drifter] [https://www.cpc-power.com/index.php?page=detail&num=17197 Hexavirus v0] [https://www.cpc-power.com/index.php?page=detail&num=15985 A tribute to the sisters] True overscan games
+*[https://www.cpc-power.com/index.php?page=detail&num=12683 Points Barres (Mode 3)] [https://www.cpc-power.com/index.php?page=detail&num=11091 New Mode] [https://www.cpc-power.com/index.php?page=detail&num=12905 "Mode 5" Viewer] [https://www.cpc-power.com/index.php?page=detail&num=19220 Raster Slideshow] [https://www.cpc-power.com/index.php?page=detail&num=16075 Brutal Deluxe] [https://www.cpc-power.com/index.php?page=detail&num=12528 Rhino-Raster] [https://www.cpc-power.com/index.php?page=detail&num=16466 Split-Rasters Test CRTC1] [https://www.cpc-power.com/index.php?page=detail&num=491 Crazy Ball] [https://www.cpc-power.com/index.php?page=detail&num=2280 Trailblazer] [https://www.cpc-power.com/index.php?page=detail&num=931 Fugitif] [https://www.cpc-power.com/index.php?page=detail&num=3963 Sudoku Master] [https://www.cpc-power.com/index.php?page=detail&num=18626 Flush Wishes You a Happy New Year] [https://www.cpc-power.com/index.php?page=detail&num=18680 Pixel Free] [https://www.cpc-power.com/index.php?page=detail&num=11825 Overscan Megatext] [https://www.cpc-power.com/index.php?page=detail&num=14763 Gozeur Intro 2] [https://www.cpc-power.com/index.php?page=detail&num=13136 Interlace viewer] [https://www.cpc-power.com/index.php?page=detail&num=9564 Interlaced 800x600] [https://www.cpc-power.com/index.php?page=detail&num=7396 Interlace] [https://www.cpc-power.com/index.php?page=detail&num=7701 Climax] [https://www.cpc-power.com/index.php?page=detail&num=9160 Kvety] [https://www.cpc-power.com/index.php?page=detail&num=19347 Flipraster] [https://www.cpc-power.com/index.php?page=detail&num=13139 Perfect Pix Paint] [https://www.cpc-power.com/index.php?page=detail&num=12030 Bat-Moule] [https://www.cpc-power.com/index.php?page=detail&num=17706 Tetris] [https://www.cpc-power.com/index.php?page=detail&num=13359 Imperial Mahjong] Special graphics modes [http://cpc.sylvestre.org/articles/articles_imperial_mahjong.html Mode EGX] [[Mode R]] [https://code.google.com/archive/p/grafx2/issues/342 Mode 5] Technical explanations
-*[https://www.cpc-power.com/index.php?page=detail&num=12683 Points Barres (Mode 3)] [https://www.cpc-power.com/index.php?page=detail&num=11091 New Mode] [https://www.cpc-power.com/index.php?page=detail&num=12905 "Mode 5" Viewer] [https://www.cpc-power.com/index.php?page=detail&num=19220 Raster Slideshow] [https://www.cpc-power.com/index.php?page=detail&num=16075 Brutal Deluxe] [https://www.cpc-power.com/index.php?page=detail&num=12528 Rhino-Raster] [https://www.cpc-power.com/index.php?page=detail&num=16466 Split-Rasters Test CRTC1] [https://www.cpc-power.com/index.php?page=detail&num=491 Crazy Ball] [https://www.cpc-power.com/index.php?page=detail&num=2280 Trailblazer] [https://www.cpc-power.com/index.php?page=detail&num=931 Fugitif] [https://www.cpc-power.com/index.php?page=detail&num=18626 Flush Wishes You a Happy New Year] [https://www.cpc-power.com/index.php?page=detail&num=18680 Pixel Free] [https://www.cpc-power.com/index.php?page=detail&num=11825 Overscan Megatext] [https://www.cpc-power.com/index.php?page=detail&num=14763 Gozeur Intro 2] [https://www.cpc-power.com/index.php?page=detail&num=13136 Interlace viewer] [https://www.cpc-power.com/index.php?page=detail&num=9564 Interlaced 800x600] [https://www.cpc-power.com/index.php?page=detail&num=7396 Interlace] [https://www.cpc-power.com/index.php?page=detail&num=7701 Climax] [https://www.cpc-power.com/index.php?page=detail&num=9160 Kvety] [https://www.cpc-power.com/index.php?page=detail&num=19347 Flipraster] [https://www.cpc-power.com/index.php?page=detail&num=13139 Perfect Pix Paint] [https://www.cpc-power.com/index.php?page=detail&num=12030 Bat-Moule] [https://www.cpc-power.com/index.php?page=detail&num=17706 Tetris] [https://www.cpc-power.com/index.php?page=detail&num=13359 Imperial Mahjong] Special graphics modes [http://cpc.sylvestre.org/articles/articles_imperial_mahjong.html Mode EGX] [[Mode R]] [https://code.google.com/archive/p/grafx2/issues/342 Mode 5] Technical explanations
 *[https://www.cpc-power.com/index.php?page=detail&num=1682 Prehistorik II (screen calibration)] [https://www.cpc-power.com/index.php?page=detail&num=16027 Mire] [https://www.cpc-power.com/index.php?page=detail&num=8257 Chany Dream 5] [https://www.cpc-power.com/index.php?page=detail&num=8307 4 Sins] [https://www.cpc-power.com/index.php?page=detail&num=11820 TV Noise] [https://www.cpc-power.com/index.php?page=detail&num=7826 Climax-G] [https://www.cpc-power.com/index.php?page=detail&num=8395 Nice Picture Show] [https://www.cpc-power.com/index.php?page=detail&num=7937 Fatal Beauties] [https://www.cpc-power.com/index.php?page=detail&num=9090 JavaCPC Overscan] [https://www.cpc-power.com/index.php?page=database&r1=1&lemot=pixel%nation Pixel Nation] [https://www.cpc-power.com/index.php?page=detail&num=7897 Twinblast] [https://www.cpc-power.com/index.php?page=detail&num=8081 MCS 6] [https://www.cpc-power.com/index.php?page=detail&num=7593 Schadel] [https://www.cpc-power.com/index.php?page=detail&num=7451 Scandinavian Flag] [https://www.cpc-power.com/index.php?page=detail&num=7858 Kill JLCS] [https://www.cpc-power.com/index.php?page=detail&num=15705 Deleting Disc] [https://www.cpc-power.com/index.php?page=detail&num=9085 Plasma Pas Cher] [https://www.cpc-power.com/index.php?page=detail&num=13528 Wavy] [https://www.cpc-power.com/index.php?page=detail&num=14778 Vagues sur l'écran] [https://www.cpc-power.com/index.php?page=detail&num=18654 Bildschirmverzerrer] [https://www.cpc-power.com/index.php?page=detail&num=2224 Thunder Blade (292 lines)] [https://www.cpc-power.com/index.php?page=detail&num=454 Bonanza Bros (295 lines)] [https://www.cpc-power.com/index.php?page=detail&num=2318 Turrican (296 lines)] [https://www.cpc-power.com/index.php?page=detail&num=102 Wonder Boy (296 lines)] [https://www.cpc-power.com/index.php?page=detail&num=1960 Sliders (330 lines)] [https://www.cpc-power.com/index.php?page=detail&num=1763 Rastan (336 lines)] To test the VDU
 *[https://www.cpc-power.com/index.php?page=detail&num=1546 Octoplex (crtc1)] [https://www.cpc-power.com/index.php?page=detail&num=781 Dynamic Duo (crtc1)] [https://www.cpc-power.com/index.php?page=detail&num=818 Druid II (crtc1)] [https://www.cpc-power.com/index.php?page=detail&num=15672 Legend of Steel (crtc1)] [https://blog.logonsystem.eu/compendium/ 007 The Living Daylights (crtc1)] [https://forum.system-cfg.com/viewtopic.php?p=234421#p234421 FMR (crtc1)] Some known bugs on real CRTCs
@@ Line 1,563: / Line 1,576: @@
 *[https://www.cpc-power.com/index.php?page=detail&num=19482 The Key] [https://www.cpc-power.com/index.php?page=detail&num=1349 Le Manoir de Mortvielle] [https://www.cpc-power.com/index.php?page=detail&num=11808 Pro-Design] [https://www.cpc-power.com/index.php?page=detail&num=5039 Cherry Paint] [https://www.cpc-power.com/index.php?page=detail&num=5348 EasiArt] [https://www.cpc-power.com/index.php?page=detail&num=4291 GPaint] [https://www.cpc-power.com/index.php?page=detail&num=4286 AMX Art] [https://www.cpc-power.com/index.php?page=detail&num=4012 Advanced OCP Art Studio] [https://www.cpc-power.com/index.php?page=detail&num=6351 Max Desktop] [https://www.cpc-power.com/index.php?page=detail&num=5208 Worktop] [https://www.cpc-power.com/index.php?page=detail&num=4733 DES] [http://www.symbos.de/ SymbOS] [https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [https://www.cpc-power.com/index.php?page=database&lemot=MultiPlay&r1=0&r2=1&r3=0&r4=1 MultiPlay] To test [[AMX Mouse]] and [[MultiPlay]] emulation
 *[https://www.cpc-power.com/index.php?page=detail&num=4026 Tasword] [https://www.cpc-power.com/index.php?page=detail&num=4028 Tasprint] [https://www.cpc-power.com/index.php?page=detail&num=4672 Print Master] [https://www.cpc-power.com/index.php?page=detail&num=12589 ProText] [https://www.cpc-power.com/index.php?page=detail&num=9583 ProType] [https://www.cpc-power.com/index.php?page=detail&num=4668 ProPrint] [https://www.cpc-power.com/index.php?page=detail&num=12745 Miraprint] [https://www.cpc-power.com/index.php?page=detail&num=4666 Qualitas Plus] [https://www.cpc-power.com/index.php?page=detail&num=4516 BrunWord] [https://www.cpc-power.com/index.php?page=detail&num=5212 CPC-Word] [https://www.cpc-power.com/index.php?page=detail&num=4104 MicroDesign] [https://www.cpc-power.com/index.php?page=detail&num=15528 Page Printer] [https://www.cpc-power.com/index.php?page=detail&num=4657 Stop Press (AMX Pagemaker)] [https://www.cpc-power.com/index.php?page=detail&num=5315 X-Press] [https://www.cpc-power.com/index.php?page=detail&num=10004 Page Publisher] [https://www.cpc-power.com/index.php?page=detail&num=5204 PowerPage 128] [https://www.cpc-power.com/index.php?page=detail&num=12116 StarMouse] [https://www.cpc-power.com/index.php?page=detail&num=5551 Impr'Image] [https://www.cpc-power.com/index.php?page=detail&num=6127 Speedtrans screen dump] [https://www.cpc-power.com/index.php?page=detail&num=17613 Kdump] [https://www.cpc-power.com/index.php?page=detail&num=4016 Printer Pac II] [https://www.cpc-power.com/index.php?page=detail&num=5712 Impression] [https://www.cpc-power.com/index.php?page=detail&num=5576 RSX Imprimante] [https://www.cpc-power.com/index.php?page=detail&num=5157 Scrypte] [https://www.cpc-power.com/index.php?page=detail&num=6287 Machine à écrire] [https://www.cpc-power.com/index.php?page=detail&num=5883 DemoImp] To test printer emulation
-*[[HDCPM]] [https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [http://www.roudoudou.com/ACE-DL/ SymbOS] [[UniDOS]] [http://www.roudoudou.com/ACE-DL/ UniLoad] [https://shacpc.itch.io/lilicpc LiliCPC] [https://cpcrulez.fr/applications_disc-m4_front-end.htm M4FE] To test RTC and mass-storage emulation
+*[[HDCPM]] [https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [http://www.roudoudou.com/ACE-DL/ SymbOS] [[UniDOS]] [http://amsnet.chez.com/ UniLoad] [https://mega.nz/folder/93pR2KiA#qlkiFakrZhSzmko65EbTWw/folder/pmpEiYBZ LiliCPC] [https://cpcrulez.fr/applications_disc-m4_front-end.htm M4FE] To test RTC and mass-storage emulation
 *[https://cpcrulez.fr/applications_util-rulez-change-m4wifi.htm RulezCharge] [https://www.cpc-power.com/index.php?page=detail&num=16746 CPChessNet] [https://github.com/fergusleen/m4ewenterm Ewen] [https://www.github.com/salafek/KCNet-software-for-Net4CPC KCNet utilities] [http://www.symbos.de/ SymbOS] [[UniDOS]] To test the network emulation
-*[https://www.cpc-power.com/index.php?page=detail&num=12972 X-MEM FW] [https://www.cpc-power.com/index.php?page=detail&num=9866 32 Roms Booster] [https://www.cpc-power.com/index.php?page=detail&num=10969 Roman] [https://www.cpc-power.com/index.php?page=detail&num=19236 CatRun] [https://www.cpc-power.com/index.php?page=detail&num=18901 CowSay] [http://impdraw.wikidot.com iMPdraw] [http://imptiles.wikidot.com/ iMPtiles] [https://www.cpc-power.com/index.php?page=detail&num=4008 Graph'OS] [https://www.cpc-power.com/index.php?page=detail&num=6129 Nirvana] [https://www.cpc-power.com/index.php?page=detail&num=6353 Utopia] [[Hexam]] [https://www.cpc-power.com/index.php?page=detail&num=12552 Orgams] [https://cpcrulez.fr/applications_disc-yet_another_norton-commander_clone.htm YANCC] [[HDCPM]] [https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [http://www.symbos.de/ SymbOS] [[UniDOS]] To test ROMboard emulation
+*[https://www.cpc-power.com/index.php?page=detail&num=12972 X-MEM FW] [https://www.cpc-power.com/index.php?page=detail&num=9866 32 Roms Booster] [https://www.cpc-power.com/index.php?page=detail&num=10969 Roman] [https://www.cpc-power.com/index.php?page=detail&num=19236 CatRun] [https://www.cpc-power.com/index.php?page=detail&num=18901 CowSay] [http://impdraw.wikidot.com iMPdraw] [http://imptiles.wikidot.com/ iMPtiles] [https://www.cpc-power.com/index.php?page=detail&num=4008 Graph'OS] [https://www.cpc-power.com/index.php?page=detail&num=6129 Nirvana] [https://www.cpc-power.com/index.php?page=detail&num=6353 Utopia] [[Hexam]] [https://www.cpc-power.com/index.php?page=detail&num=12552 Orgams] [https://cpcrulez.fr/applications_disc-yet_another_norton-commander_clone.htm YANCC] [[HDCPM]] [https://www.cpc-power.com/index.php?page=detail&num=15975 FutureOS] [http://www.symbos.de/ SymbOS] [[UniDOS]] [https://archive.org/details/cpc-roms ROM Games] To test ROMboard emulation
-*[https://www.cpc-power.com/index.php?page=detail&num=17567 Alcon 2020] [https://www.cpc-power.com/index.php?page=detail&num=18843 Hyperdrive] [https://www.cpc-power.com/index.php?page=detail&num=18503 Puzzle Bobble] [https://www.cpc-power.com/index.php?page=detail&num=18888 Revenge of Trasmoz] [https://www.cpc-power.com/index.php?page=detail&num=19111 Crazy Piri Chronicle] [[Converted GX4000 Software]] [https://futureos.cpc-live.com/ FutureOS] [http://www.symbos.de/ SymbOS] [http://amsnet.chez.com/ UniDOS] To test [[Plus2CPC]] or compatible ([[Play2CPC]], [[M4 Board]]) CPC cartridge slot expansion
+*[https://www.cpc-power.com/index.php?page=detail&num=17567 Alcon 2020] [https://www.cpc-power.com/index.php?page=detail&num=18843 Hyperdrive] [https://www.cpc-power.com/index.php?page=detail&num=18503 Puzzle Bobble] [https://www.cpc-power.com/index.php?page=detail&num=18888 Revenge of Trasmoz] [https://www.cpc-power.com/index.php?page=detail&num=19111 Crazy Piri Chronicle] [[Converted GX4000 Software]] [https://futureos.cpc-live.com/ FutureOS] [http://www.symbos.de/ SymbOS] [http://amsnet.chez.com/ UniDOS Cartridge Creator] To test [[Plus2CPC]] or compatible ([[Play2CPC]], [[M4 Board]]) CPC cartridge slot expansion
 *[https://www.cpc-power.com/index.php?page=detail&num=14498 Multiface Protector] [https://www.cpc-power.com/index.php?page=protection&lenom=Multiface%202%20Protection Anti-Multiface II software list] [https://www.cpc-power.com/index.php?page=detail&num=1855 RX 220] [https://www.cpc-power.com/index.php?page=detail&num=1980 War in Middle Earth] [https://www.cpc-power.com/index.php?page=detail&num=1322 Zap't'Balls advanced] [https://www.cpc-power.com/index.php?page=detail&num=5266 The Insider] [https://www.cpc-power.com/index.php?page=detail&num=5271 MF2RR] [https://grimware.org/doku.php/documentations/expansions/mf2/start Technical documentation] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=433] To test [[Multiface II]] emulation
 *[https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=9 LensLok] [https://www.cpc-power.com/index.php?page=database&lemot=hardware_dandanator Dandanator] [[8bit Printer Ports]] Exotic hardware components that are essential for some CPC software and should therefore be emulated
@@ Line 1,575: / Line 1,588: @@
 *[https://www.cpc-power.com/index.php?page=detail&num=6091 Azimut Locator] [https://www.cpc-power.com/index.php?page=detail&num=13564 Tape Speed Checker] [https://www.cpc-power.com/index.php?page=detail&num=10919 Motor Control] [https://www.cpc-power.com/index.php?page=detail&num=8881 Odd Border] [https://www.cpc-power.com/index.php?page=detail&num=4194 Ultra Son] [https://www.cpc-power.com/index.php?page=detail&num=16963 Catalogueur de Cassettes] [https://www.cpc-power.com/index.php?page=detail&num=5998 Tape Utility] [https://www.cpc-power.com/index.php?page=detail&num=10475 Soft-Lok] [https://www.cpc-power.com/index.php?page=detail&num=5299 Soft-Arc] [https://www.cpc-power.com/index.php?page=detail&num=6057 Deconnect] [https://www.cpc-power.com/index.php?page=protection&lenom=NoAMSDOS NoAMSDOS software list] [https://www.cpc-power.com/index.php?page=detail&num=3871 Computer Hits] [https://www.cpc-power.com/index.php?page=detail&num=1359 Marmelade] [https://www.cpc-power.com/index.php?page=detail&num=1412 Mickey Mouse] [https://www.cpc-power.com/index.php?page=detail&num=365 Basil] [https://www.cpc-power.com/index.php?page=detail&num=1364 Mask] [https://www.cpc-power.com/index.php?page=detail&num=2035 Split Personalities] [https://www.cpc-power.com/index.php?page=detail&num=911 Frank Bruno's Boxing] [https://www.cpc-power.com/index.php?page=database&lemot=baudload Baudload software list] [https://www.cpc-power.com/index.php?page=protection&lenom=Keytone Keytone software list] [https://www.cpc-power.com/index.php?page=protection&lenom=COMPTEUR%20CASSETTE Tape Counter software list] [https://www.cpc-power.com/index.php?page=detail&num=17502 Loading Screens slideshow] To test Tape emulation
 *[https://www.cpc-power.com/index.php?page=detail&num=8548 Musical Loader] [https://www.cpc-power.com/index.php?page=detail&num=19368 FatMag 2] [https://blog.logonsystem.eu/magicsystem/ FatMag 2 technical analysis] [https://www.cpc-power.com/index.php?page=detail&num=7405 5KB 3] [https://www.cpc-power.com/index.php?page=detail&num=9211 Backtro] [https://www.cpc-power.com/index.php?page=detail&num=8623 Unique] [https://www.cpc-power.com/index.php?page=detail&num=8746 The Demo] [https://www.cpc-power.com/index.php?page=detail&num=266 Fres Fighter II Turbo] [https://www.cpc-power.com/index.php?page=detail&num=13108 CPC 30th Anniversary] [https://www.cpc-power.com/index.php?page=detail&num=7542 Midline Process] [https://www.cpc-power.com/index.php?page=detail&num=17902 Can Robots Take Control] [https://www.cpc-power.com/index.php?page=detail&num=15102 PhX] [https://www.cpc-power.com/index.php?page=detail&num=9156 Batman Forever] [https://www.cpc-power.com/index.php?page=detail&num=16736 Pinball Dreams] [https://www.cpc-power.com/index.php?page=detail&num=7174 R-Type 128K] [https://www.cpc-power.com/index.php?page=detail&num=6661 Nheredia] [https://www.cpc-power.com/index.php?page=detail&num=13426 Doomsday Lost Echoes] [https://www.cpc-power.com/index.php?page=detail&num=19013 The Elves of Maroland] [https://www.cpc-power.com/index.php?page=detail&num=4025 Orion Prime] Musical loader, Multi-drives, 3.5 inch (dual-head and 80 tracks) floppy drives support [https://www.cpc-power.com/index.php?page=detail&num=1112 House of Usher (5.25 inch)] [https://www.cpc-power.com/index.php?page=database&lemot=Parados&r1=0&r2=1&r3=0&r4=1 ParaDOS software list]
-*[https://www.cpc-power.com/index.php?page=detail&num=10029 RPM] [https://www.cpc-power.com/index.php?page=detail&num=15518 DskTest] [https://www.cpc-power.com/index.php?page=detail&num=6268 Discover] [https://www.cpc-power.com/index.php?page=detail&num=5071 Dir Doktor] [https://www.cpc-power.com/index.php?page=detail&num=9369 Optimize] [https://www.cpc-power.com/index.php?page=detail&num=14201 Crazy] [https://www.cpc-power.com/index.php?page=detail&num=15144 Dlfrsilver Dump Tool Test Suite] [https://www.cpc-power.com/index.php?page=detail&num=4812 Format II] [https://www.cpc-power.com/index.php?page=detail&num=19465 Magic Transfert] [https://cpcrulez.fr/applications_disc-magic_dos.htm Magic DOS] [https://www.cpc-power.com/index.php?page=detail&num=11044 DOS-copy] [[ParaDOS]] [https://www.cpc-power.com/index.php?page=detail&num=4933 Xexor] [https://www.cpc-power.com/index.php?page=detail&num=6118 Discology] [https://www.cpc-power.com/index.php?page=detail&num=4179 Hercule II] [https://www.cpc-power.com/index.php?page=detail&num=4015 OddJob] [https://www.cpc-power.com/index.php?page=detail&num=5997 Master Disc] [https://www.cpc-power.com/index.php?page=detail&num=16060 UltraDisc] [https://www.cpc-power.com/index.php?page=detail&num=4284 Disc+Ultra] [https://www.cpc-power.com/index.php?page=detail&num=5244 Disc'o'Magic] [https://www.cpc-power.com/index.php?page=detail&num=5050 Crime] [https://www.cpc-power.com/index.php?page=detail&num=9297 Multi Mark] To test FDC emulation
+*[https://www.cpc-power.com/index.php?page=detail&num=10029 RPM] [https://www.cpc-power.com/index.php?page=detail&num=15518 DskTest] [https://www.cpc-power.com/index.php?page=detail&num=6268 Discover] [https://www.cpc-power.com/index.php?page=detail&num=5071 Dir Doktor] [https://www.cpc-power.com/index.php?page=detail&num=9369 Optimize] [https://www.cpc-power.com/index.php?page=detail&num=14201 Crazy] [https://www.cpc-power.com/index.php?page=detail&num=15144 Dlfrsilver Dump Tool Test Suite] [https://www.cpc-power.com/index.php?page=detail&num=4812 Format II] [https://www.cpc-power.com/index.php?page=detail&num=19465 Magic Transfert] [https://cpcrulez.fr/applications_disc-magic_dos.htm Magic DOS] [https://www.cpc-power.com/index.php?page=detail&num=11044 DOS-copy] [[ParaDOS]] [https://www.cpc-power.com/index.php?page=detail&num=4933 Xexor] [https://www.cpc-power.com/index.php?page=detail&num=6118 Discology] [https://www.cpc-power.com/index.php?page=detail&num=4179 Hercule II] [https://www.cpc-power.com/index.php?page=detail&num=4015 OddJob] [https://www.cpc-power.com/index.php?page=detail&num=5997 Master Disc] [https://www.cpc-power.com/index.php?page=detail&num=16060 UltraDisc] [https://www.cpc-power.com/index.php?page=detail&num=4284 Disc+Ultra] [https://www.cpc-power.com/index.php?page=detail&num=5244 Disc'o'Magic] [https://www.cpc-power.com/index.php?page=detail&num=5050 Crime] [https://www.cpc-power.com/index.php?page=detail&num=9297 Multi Mark] [https://www.cpc-power.com/index.php?page=detail&num=12051 Demonstration of KBI protection] [https://www.cpc-power.com/index.php?page=detail&num=5586 Protector] To test FDC emulation
-*[https://cpcrulez.fr/demostestDM_fatmag_01.htm FatMag (HFE version)] [https://www.cpc-power.com/index.php?page=detail&num=19512 BND4 Invitro (sick mode)] [https://www.cpc-power.com/index.php?page=detail&num=17853 Open Tower Defense] Rigorous FDC tests by Roudoudou [https://www.cpc-power.com/index.php?page=database&lemot=AutoDetect%20Disk%20Change Disk Swapping Autodetect software list] [https://www.cpc-power.com/index.php?page=detail&num=10000 Superpix] [https://www.cpc-power.com/index.php?page=detail&num=8244 Bad Mag Issue 2] Disk swapping detection [https://www.cpc-power.com/index.php?page=detail&onglet=dumps&num=8623 Unique Diskmaker (generating discs in noiseload format)] [https://www.cpc-power.com/index.php?page=detail&num=7646 Big Cheese 2 (FDC VU-meter effect)] [https://www.cpc-power.com/index.php?page=detail&num=2024 Sphaira (accessing the 3rd drive)] [https://www.cpc-power.com/index.php?page=detail&num=14747 The Shadows of Sergoth (unformatted track)] [https://www.cpc-power.com/index.php?page=detail&num=12051 Demonstration of KBI protection] [https://www.cpc-power.com/index.php?page=detail&num=5586 Protector]
+*[https://cpcrulez.fr/demostestDM_fatmag_01.htm FatMag (HFE version)] [https://www.cpc-power.com/index.php?page=detail&num=19512 BND4 Invitro (sick mode)] [https://www.cpc-power.com/index.php?page=detail&num=17853 Open Tower Defense] Rigorous FDC tests by Roudoudou [https://www.cpc-power.com/index.php?page=database&lemot=AutoDetect%20Disk%20Change Disk Swapping Autodetect software list] [https://www.cpc-power.com/index.php?page=detail&num=10000 Superpix] [https://www.cpc-power.com/index.php?page=detail&num=8244 Bad Mag Issue 2] Disk swapping detection [https://www.cpc-power.com/index.php?page=detail&onglet=dumps&num=8623 Unique Diskmaker (generating discs in noiseload format)] [https://www.cpc-power.com/index.php?page=detail&num=7646 Big Cheese 2 (FDC VU-meter effect)] [https://www.cpc-power.com/index.php?page=detail&num=2024 Sphaira (accessing the 3rd drive)] [https://www.cpc-power.com/index.php?page=detail&num=14747 The Shadows of Sergoth (unformatted track)]
 *[https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=Weak%20Sectors Weak Sectors] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=Gaps Custom Gaps] [https://www.cpc-power.com/index.php?page=protection&stafftype=0&lenom=Gap2 Custom Gap2] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=SectorSizeX Sector SizeX] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=SectorSize8 Sector Size8] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=SectorSize7 Sector Size7] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=SectorSize6 Sector Size6] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=SectorErased Sector Erased] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=64sectors 64 Sectors] [https://www.cpc-power.com/index.php?page=protection&lenom=Overlap Overlap] [https://www.cpc-power.com/index.php?page=protection&stafftype=1&lenom=Custom Custom] [https://www.cpc-power.com/index.php?page=protection&lenom=HERBULOT Rémi Herbulot] [https://www.cpc-power.com/index.php?page=protection&lenom=Brice%20Rive Brice Rivé] [https://www.cpc-power.com/index.php?page=protection&lenom=Rubi Rubi] [https://www.cpc-power.com/index.php?page=protection&lenom=MBC%20D7 MBC] Protected software lists
 *[https://www.cpc-power.com/index.php?page=detail&num=1681 Prehistorik] [https://www.cpc-power.com/index.php?page=detail&num=1699 Profession Détective] [https://www.cpc-power.com/index.php?page=detail&num=291 Emlyn Hugues Arcade Quiz] Other copy-protection schemes [https://www.cpc-power.com/index.php?page=detail&num=674 Dark Sceptre] [https://www.cpc-power.com/index.php?page=detail&num=1269 Krypton Factor] Works only on older floppy drives [https://www.cpc-power.com/index.php?page=detail&num=17257 TokiMap] [https://www.cpcwiki.eu/forum/programming/fdc-tools-amsdos-direct-load-reliability/msg227259/ Technical explanation] Unreliable FDC loader
@@ Line 1,587: / Line 1,600: @@
 *[https://www.cpc-power.com/index.php?page=detail&num=3905 The Eternal Light] [https://www.cpc-power.com/index.php?page=detail&num=18813 Druid & Droid] [https://www.cpc-power.com/index.php?page=detail&num=19341 Paulina's Potions] [https://www.cpc-power.com/index.php?page=detail&num=5197 Claudia BMP Converter] [https://www.cpc-power.com/index.php?page=detail&num=9251 Snoozing] Programs that only run fine on flawed emulators but are broken on real machines
 *[https://www.cpc-power.com/index.php?page=detail&num=8524 Equalizor] [https://forum.system-cfg.com/viewtopic.php?p=229698#p229698 Revolog] [https://forum.system-cfg.com/viewtopic.php?p=256995#p256995 Technical explanation] Some believe it could be a random hardware bug of CRTC1 chip. But it could also be explained by the LD A,R instruction which is known to be buggy on NMOS Z80 when interrupted.
-*[https://www.cpc-power.com/index.php?page=detail&num=625 Get Dexter] Different screen transition effect depending on the detected CRTC type
+*[https://www.cpc-power.com/index.php?page=detail&num=625 Get Dexter] Different screen transition effect depending on the detected CRTC type [https://www.cpc-power.com/index.php?page=detail&num=19595 Borderline] Different demo depending on the detected CRTC type
 *[https://www.cpc-power.com/index.php?page=detail&num=2009 Space Racer] [https://www.cpc-power.com/index.php?page=detail&num=441 Bob Winner] [https://www.cpc-power.com/index.php?page=detail&num=1873 Sapiens (Tape)] [https://www.cpc-power.com/index.php?page=detail&num=1372 Mata Hari (Tape)] [https://www.cpc-power.com/index.php?page=detail&num=2209 Thai Boxing] CPC keyboard detection [https://www.cpc-power.com/index.php?page=detail&num=1225 Jungle Jane] [https://www.cpc-power.com/index.php?page=detail&num=4737 3D Megacode] Firmware detection
 *[https://www.cpc-power.com/index.php?page=detail&num=2266 The Untouchables] [https://www.cpc-power.com/index.php?page=detail&num=135 Batman The Movie] [https://www.cpc-power.com/index.php?page=detail&num=2318 Turrican] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=80 Technical explanation] CPC keyboard clash [https://www.cpc-power.com/index.php?page=detail&num=2224 Thunder Blade (6 keys)] [https://www.cpc-power.com/index.php?page=detail&num=244 Agent X II (7 keys)] [https://www.cpc-power.com/index.php?page=detail&num=11846 Wishing-Well (8 keys)] [https://www.cpc-power.com/index.php?page=detail&num=1886 Score 3020 (9 keys)] Simultaneous keypresses for cheat mode
@@ Line 1,595: / Line 1,608: @@
 = Rewind feature =
-ACE-DL has a rewind feature, but it is not as good as it could be: [https://youtu.be/wIKGvpnJLUo Demonstration of rewind in ACE-DL]
-Only the RetroArch CPC emulator has a proper rewind feature: [https://youtu.be/YwilYlSe5LQ Demonstration of rewind in RetroArch]. To reverse the game, the user press and hold the rewind button. And at any point, releasing the button makes time goes forward again.
+The RetroArch CPC emulator has the most convenient rewind feature: [https://youtu.be/YwilYlSe5LQ Demonstration]. To reverse the game, the user press and hold the rewind button. And at any point, releasing the button makes time goes forward again.
-A very simple approach would be to make a SNA for each frame and limit the RAM snapshot to 128KB, which is ok for 99% of CPC software. For a 10-seconds long rewind functionality, only 64MB RAM is needed (128KB * 50 frames * 10 seconds).
+ACE-DL also has a rewind feature, but it is not as good as it could be: [https://youtu.be/wIKGvpnJLUo Demonstration].
-A more efficient approach is to store only the values that are changed in RAM between two frames, so that RAM can be restored when rewinding. This allows for long rewinds, even of a CPC equipped with a 4MB RAM expansion. Proof of it is the GBA emulator [https://youtu.be/Sfc_1NKbiKg SkyEmu demonstrating super long rewind] while needing very few RAM.
+One 128KB snapshot per frame allows 10 seconds of rewind with 64MB (128KB * 50 frames * 10 seconds) of memory for the rewind feature. A more efficient method saves only the previous RAM values that are changed between 2 frames, allowing much longer rewinds (even if the CPC is equipped with 4MB RAM expansion) while using less memory, as shown by the GBA emulator [https://youtu.be/Sfc_1NKbiKg SkyEmu].
-For debugging, going back to the previous instruction is easily implemented. The emulator has to store the time when the previous instruction was executed so that he can go back to that instruction. In the same way, emulators can provide access to the previous HBL, IRQ, VBL, etc.
+For step-back debugging, the emulator just needs to store the time when the previous instruction was executed so that he can go back to that instruction. In the same way, emulators can provide access to the previous HBL, IRQ, VBL, etc.
 <br>
@@ Line 1,610: / Line 1,622: @@
 *[https://www.cpcwiki.eu/index.php/Format:DSK_disk_image_file_format DSK / EDSK] [https://hxc2001.com/download/floppy_drive_emulator/SDCard_HxC_Floppy_Emulator_HFE_file_format.pdf HFE] [http://info-coach.fr/atari/documents/_mydoc/IPF-Documentation.pdf IPF] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=386 CTRAW] [https://www.cbmstuff.com/downloads/scp/scp_image_specs.txt SCP] File formats of disk-image
-*[https://www.cpcwiki.eu/index.php/Format:CDT_tape_image_file_format CDT / TZX] [http://zxds.raxoft.cz/pzx.html PZX] [https://acorn.huininga.nl/pub/unsorted/software/pc/CSW/csw.html CSW] [https://xiph.org/flac/ FLAC] [http://soundfile.sapp.org/doc/WaveFormat/ WAV] [https://www.datavoyage.com/mpgscript/mpeghdr.htm MP3] File formats of tape-image
+*[https://www.cpcwiki.eu/index.php/Format:CDT_tape_image_file_format CDT / TZX] [http://zxds.raxoft.cz/pzx.html PZX] [https://acorn.huininga.nl/pub/unsorted/software/pc/CSW/csw.html CSW] [https://xiph.org/flac/format.html FLAC] [http://soundfile.sapp.org/doc/WaveFormat/ WAV] [http://fileformats.archiveteam.org/wiki/MP3 MP3] File formats of tape-image
 *[https://www.cpcwiki.eu/index.php/Format:CPR_CPC_Plus_cartridge_file_format CPR cartridge] [https://www.cpcwiki.eu/index.php/Format:SNA_snapshot_file_format SNA snapshot] Other file formats used in CPC emulators
 *[https://www.cpcwiki.eu/forum/emulators/javacpc-desktop-available-as-beta!/100/ Official SNR session spec] [https://www.cpcwiki.eu/forum/emulators/playback-format-for-scenes/ Discussion about SNR format] [https://www.cpc-power.com/cpcarchives/index.php?page=articles&num=10 Archive of SNR sessions]
@@ Line 1,656: / Line 1,668: @@
   The way to cause the RAM refresh to fail in both a Plus or normal CPC is simply to stop a few bits of the CRTC address changing (ie. never refresh the selected area).
   Generally, only the Row address needs to be cycled, so stopping MA0 through MA7 from changing, and stopping the CPU from reading those rows, will cause data to be lost, quite quickly (generally around 4ms).
-*Playing with the "floating" bus. Using Z80 read I/O commands to write to chip registers. Using undocumented I/O ports. Writing to multiple chips simultaneously.
+*Playing with the "floating" bus. Using Z80 read I/O commands to write to chip registers. Accessing ghost registers. Using undocumented I/O ports. Writing to multiple chips simultaneously. Changing PPI and PSG ports direction.
 *Focusing on the minute details in [[Z80]], [[CRTC]], [[8255|PPI]] and [[PAL16L8|PAL]] chips. They are most often wrong in emulators.
 *Examining the [[FDC]] chip. It is only replicated more or less superficially in all emulators because the internals of the chip are still unknown. Many emulators don't even support the FDC SCAN or FORMAT TRACK commands.
@@ Line 1,696: / Line 1,708: @@
 | Open source
 | [[Locomotive BASIC 1.1]]
+|-
+| [[Chip8 CPC]]
+| [https://www.cpcwiki.eu/forum/games/chip8-emulator-for-amstrad-cpc/] [https://github.com/ajcasado/Chip8_CPC Repo]
+|
+| Nov 12, 2024
+| Open source
+| [[CHIP-8]]
 |-
 | [[CPCZVM]]
@@ Line 1,710: / Line 1,729: @@
 | Open source
 | [[CP/M]]
+|-
+| [[Fuzix OS]]
+| [https://www.cpcwiki.eu/forum/applications/port-of-fuzix-for-the-cpc6128/] [https://github.com/EtchedPixels/FUZIX Repo]
+|
+| Nov 12, 2024
+| Open source
+| [[POSIX]] (UNIX)
 |-
 | [[Pac-Man]]

Difference between revisions of "Emulators"

Latest revision as of 16:31, 24 November 2024

Contents

Software Platforms (Full OS independance)

Java Platform

JS / Wasm / Web Platform

LibRetro (API for emulators)

Operating Systems

Desktop

Mobile

Discontinued OS

Other Platforms

Home Consoles

Handheld Consoles

FPGA

Hardware Replacements

Chips

Floppy drives

Tapes

Cartridges

Printers

Other

Peripherals supported in emulators

Mass storage devices

Network devices

Audio devices

Graphics devices

Input devices

Hacking devices

Emulator accuracy checking tools

Quick evaluation

Z80 CPU

Diagnostics

Amstrad Plus

Colorimetry

Graphics

Audio

Peripherals

Copy-protection

Other

Rewind feature

File format specifications

Emulation Tools

Cross-Platform Development

Cross-Platform Art

Emulator Detection

Emulators running on the Amstrad CPC

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