Arnold Emulator

[Herminia Remmen]

Thenewest 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 others to use to improve their emulators.

Arnold is being actively developed and there are updates to the code almost daily. The work in progress version uses SDL for the display, audio and input and wxWidgets for the GUI. It is built with cmake and now all versions (Mac OS X, Linux/Unix and Windows) have identical functionality and interface.

Arnold aims 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.

Previous versions 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 Andreas Micklei. There is also a Linux "nurgle" version which contains patches and improvements over the original by Elmsoft and Nurgle.

Arnold comes with a collection of tests which are used to verify it's operation against real CPC, Plus and expansions.These tests aim to test every feature and bug of the hardware including rarely used ones.It also attempts to show the differences with the ICs used by the Amstrad which came from different manufacturers (8255, CRTC etc)

The CPC line of computers are notorius for having some of the worst emulators.

MAME - Issues: accuracy, terrible support for the plus line.

RetroArch - Issues: accuracy, can't change disks, terrible support for the plus line

WinAPE - Issues: accuracy, automation, fullscreen resolutions from 2004

Arnold - Issues: automation, joystick support, fullscreen not working

Can see i left out a an important fact in my haste, i wasnt talking about the regular CPC line (464 & 6128) as CapriCe Forever has a higher accuracy than Arnold on those systems with their recent builds.

I was talking mainly about the Plus line of computers. (try loading the Ghost n Goblins CPC Plus remake in CapriCe Forever and take a listen to it's sound implementation, it can't be called functional)

Arnold has always been the only CPC emulator outside of WinAPE with decent/good accuracy for the CPC Plus, producing a playable experience.

And now it has a fork that makes the emulator workable in a frontend enviroment, the ideal would be for CapriCe Forever to finaly work out their Plus line support but thats hopefully to come.

Three Tennessee Technological University (TTU) student teams presented their AEDC Collaborative Applied and Innovative Research Capstone Projects at AEDC on April 27. The three projects included development of a digital inclinometer replacement prototype, an instrumentation scanner emulator and a digital pulse counter prototype. All three projects are applied research in innovative implementations needed at AEDC with a goal of procurement and operations and maintenance (O&M) cost reductions, as well as increased flexibility and performance. Pictured left to right is ATA advisor Paul Schwer, TTU students Elijah Thomas, John Long, Doug McGary, Forest King, Jacob Dale, Zach Mansell, Ogie Hall, Jacob Rymer, Tim Condra, and Chris Nimmo; TTU advisor Dr. Ali Alouani; ATA advisor Dr. Klaus Schug; and TTU students Evan Byron and Steven Raines. (Photo by Rick Goodfriend)

N2 - Specifying the performance of audio ampliers is typically done by playing sine waves into a pure ohmic load. However real loudspeaker impedances are not purely ohmic but characterised by the mechanical resonance between the mass of the diaphragm and the compliance of its' suspension which vary from driver to driver. Therefore a loudspeaker emulator capable of adjusting its' impedance to a given driver is in need for measurement purposes. This paper proposes a loudspeaker emulator circuit for small signals. Simulations and experimental results are compared and show that it is possible to emulate the loudspeaker impedance with an electric circuit and that its' resonance frequency can be changed by tuning two resistors.

AB - Specifying the performance of audio ampliers is typically done by playing sine waves into a pure ohmic load. However real loudspeaker impedances are not purely ohmic but characterised by the mechanical resonance between the mass of the diaphragm and the compliance of its' suspension which vary from driver to driver. Therefore a loudspeaker emulator capable of adjusting its' impedance to a given driver is in need for measurement purposes. This paper proposes a loudspeaker emulator circuit for small signals. Simulations and experimental results are compared and show that it is possible to emulate the loudspeaker impedance with an electric circuit and that its' resonance frequency can be changed by tuning two resistors.

All content on this site: Copyright 2024 Elsevier B.V. or its licensors and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For all open access content, the Creative Commons licensing terms apply

In the last few minutes I've released Nostalgic Maze 2.0, replacing what a well-meaning reviewer thoughtfully referred to as "programmer art" with beautiful hand-drawn animations. The game now has a police chase them which I think works really well; I hope you like it as much as I do.

This update is the latest step in a major project I started almost a year ago to upgrade the appearance of my classic game remakes. So far I've completed work on Burning Turkey, Dangerous Maggots, Fascinating Fruit, Fox and Pigs, Hedgehog Happening, Ice Squishing, Leaky Nuts, Shaded Bricks, Traffic Prince, and Vampire Riches. I've got further improvements I'd like to make in due time but whether they happen or not will depend very much on sales; to not put too fine a point on it, I need to recoup the investment I've made before I think about spending more.

I'm thrilled to announce the immediate availability of Fox and Pigs v2.0. The new release features radically improved graphics, comprising over five hundred distinct frames of animation. As ever this is a free upgrade for existing players.

Over the last month I've been pushing out a series of improvements to many of my classic game remakes, with a particular focus on graphics and sound. The latest to go under the knife is Traffic Prince, which was upgraded earlier this week with new animations and a two additional music tracks. The full collection can be explored at www.retrogamesformac.com.

Fascinating Fruit v2.0 is now available. The big change in this release is improved graphics; the player and enemies are now fully animated, which improves the game markedly. Below are some of the animation frames for the upgraded gorilla to give you some idea:

In other news, Superior Solitaire v3.0 is now available. This release is also about graphics; I've added a selection of different card backgrounds to choose from. This feature is available on both macOS and iOS; I hope you enjoy it.

I've just released a major update to Vecx, adding somme long-requested features like overlay support and phosphor decay simulation. I've also put out maintenance updates to all my other emulator projects. The changes affecting everything are as follows:

Separately, if you're not already following me on Twitter, please consider doing so. I'm planning to make greater use of the platform in the near future to talk about current and upcoming projects, and I'm also hoping to run a few giveaways; watch this space!

When I was growing up it was quite normal for home computer games to have hidden features and special modes that could be activated by typing the right combination of letters. All thirty of my classic game remakes include cheats for macOS players. Here are some of the things you can type in:

For those who prefer slightly more high-brow entertainment, Superior Solitaire has gained support for Scorpion and Towers. A one-time purchase covers both the macOS and iOS versions, both of which are completely ad-free.

I've pushed a couple of updates to Superior Solitaire over the last few weeks. The latest release supports Canfield, FreeCell, Golf, Klondike, Pyramid, TriPeaks, Westcliff, and Yukon Solitaires. Thank you to everyone who's offered feedback and suggestions; I really appreciate the help and support.

This week's project is a replacement for one of the few things I needed to use Windows for. Superior Solitaire is a straight-forward version of the classic card game with no ads or in-app purchases. It is available today on the App Store for macOS, iPad, and iPhone.

My latest creation is Anagram Master, a simple utility for building phrase anagrams on macOS. Thirty years ago I spent hours playing around with a command-line equivalent called Ars Magna; hopefully my version will provide an equal measure of amusement to the masses.

I'm excited to announce the immediate availability of Ancient Tails, my thirtieth and final planned classic game remake. This one is my most elaborate yet; it includes specially commissioned sprite animations, seven unique music tracks with a cohesive theme, five different level backgrounds, and over forty sound effects. It is available on its own, or as part of a ten game bundle.

Separately, on a closely related note, if you're a Facebook user, it'd help me a lot if you could like and share the page for the games project. Please also invite anyone that you think might be interested.

All of the emulators on this site have been updated to run natively on Apple Silicon. Individual download links have been refreshed, and I've made all twenty-six available in a single archive (link removed, as updates have been released since) for those who want them all.

There's not a lot of real world gain in going native unless you habitually run old games at ten or fifteen times actual speed, but it'd be remiss of me not to record the significant performance boost in BSNES; in my tests a cloud-hosted Apple Silicon Mac Mini was able to maintain a steady 150fps using the accuracy core, some fifty percent faster than a 2020 Mac Pro.

3a8082e126