View source for Amspirit

Amspirit is a highly precise emulator of the Amstrad CPC range (CPC464, CPC664, CPC6128, CPC464+, CPC6128+) and GX4000 console. The project has been started in 2017 and is still in progress. It relies on a lone developer, [[DManu78]].
The main point of the emulator is it's emulating the CPC at the frequency of 16 MHZ, thus being able to emulate the Gate Array to the cycle level (To the opposite of all other Amstrad CPC emulators, which are more coarse and emulate at a frequency of only 1 MHz). The aim of [[Dmanu78]] is to emulate every little bug or side effect of the real hardware.

Some portions of Amspirit have been developed in conjunction with [[Longshot]] while he was writing his [[Compendium]]. Modified versions of Amspirit have been used to test some theories when writing the document. Even if Longshot didn't took part in Amspirit's development, the emulator benefited from the research for the Compendium, as well as the Compendium from Amspirit.

In 2025 Amspirit is the most accurate Amstrad CPC emulator on the [[Z80]], [[CRTC]] (types 0,1,2,3,4) and [[Gate Array]] or [[Asic]]. [[FDC]], [[AY]] and [[8255 PPI chip|PPI]] were less worked on, by lack of testing tools and documentation. It passes almost every [[The Logon Shaker|Shaker]] tests. This makes it the best choice when one needs a robust test platform when developing Amstrad CPC programs on a PC.

== Links ==
* [https://www.amspirit.fr/ The Website of Amspirit]
* [https://forum.system-cfg.com/viewtopic.php?f=24&t=11535 A thread on System-cfg where DManu78 tells about the development process]
* [https://thecheshirec.at/2023/11/26/fatmag-2-confirme-que-lemulation-crtc-de-amspirit-est-au-top/ A program tries to make people believe Amspirit CRTC Emulation is buggy]