Changes

Arnold is a CPC emulator originally written and maintained by [[Kevin Thacker]].

Conversions The newest version is 13/05/2017. This is the "work in progress"/"wip" version which is already very advanced and is more accurate than most existing emulators. This is verifable using the 'acid test' test programs which are freely available for Apple Macintosh and Linux were made by [[Richard Bannister]] and [[Nurgle|Andreas Micklei]], respectivelyothers to use to improve their emulators.

Arnold aims is being actively developed and there are updates to the code almost daily. The work in progress version uses SDL for maximum emulation accuracy across the whole CPC and CPC rangedisplay, as well as audio and input and wxWidgets for the [[KC Compact]]GUI. Different [[CRTC]] types can be selected as well as various other aspects of the emulated machineIt is built with cmake and now all versions (Mac OS X, Linux/Unix and Windows) have identical functionality and interface.

While early versions of Arnold were written using x86 assemblyaims for maximum emulation accuracy across the whole CPC and Plus range as well as the [[KC Compact]], Aleste 520Ex and the GX4000. The emulator has various devices that can be enabled and there is extensive configuration possible.  The following devices are emulated and useable:* [[AMRAM2]]* [[BrunWord | Brunword mk2 and mk4]]* [[Hackit]]* [[Hexam]]* [[MegaROM]]* [[MultiPlay]]* [[Rombo_Rombox]]* [[Vortex_Expansions_RAM_card]]* [[CPC4MB]] The following are partially emulated:* [[SYMBiFACE_II]] (RTC not emulated and data for IDE device data is transient)* [[UIDE_Universal_IDE_adapter_cards_for_Z-80_computers]] (IDE device data is transient)* [[X-Mass]] (IDE device data is transient) The following are in progress:* [[X-MEM]]* [[Dk'tronics_memory_expansion]] (256KB RAM and 256KB Silicon disk are in progress) The following are based on hacking the ROMs so need much more recent testing* [[Vortex_Winchester_Drive]]* [[Dobbertin_Harddisk]]  Previous versions are shared the same emulation core, but each port was managed separately and had different user interfaces. The Windows port made by Kevin, Apple Macintosh port by [[Richard Bannister]] and Linux port by [[Nurgle|Andreas Micklei]]. There is also a Linux "nurgle" version which contains patches and improvements over the original by Elmsoft and Nurgle. The initial version was written in portable Con Windows and used DirectX. This resulted in ports for MacOS, MacOS X Previously to this there was A-CPC, an Amstrad emulator for Amiga also by Kevin Thacker.  == Arnold WIP == * Source : [http://www.cpctech.org.uk/arnsrc.zip Arnold wip source] - May 13 2017* Windows: [http://www.cpctech.org.uk/setup.zip Installer for Windows ] - May 13 2017* MAC : [http://www.cpctech.org.uk/arnold.dmg Arnold for Mac] - August 2017* deb package for Debian/Ubuntu: [http://www.cpctech.org.uk/arnold_1.0.0-1_amd64.deb Arnold for Linux] - August 2017* rpm package for Fedora/SuSE: [http://www.cpctech.org.uk/arnold-1.0.0-1.x86_64.rpm Arnold for Linux] - August 2017 == "Acid tests" == Arnold comes with a collection of tests which are used to verify it's operation against real CPC, Unix Plus and other platformsexpansions. While These tests aim to test every port feature and bug of Arnold has its own native user interface, the emulation core remains hardware including rarely used ones.It also attempts to show the same across differences with the ICs used by the Amstrad which came from different versionsmanufacturers (8255, CRTC etc) * Acid tests: [[File:Acid Tests Suite.zip]] [http://www.cpctech.org.uk/test.zip Acid tests]

Older Arnold versions:* [http://arnold.emuunlimcpc-live.com Arnold for Windows]

* [http://arnoldwww.berliosyasara.de org/cpc/index.html Arnold TNG for Linux]* [http://xport.xbox-scene.com/arnoldx.php Arnold for Microsoft XBox (ArnoldX)]