CPU8 2.10 - App Store

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About CPU8

Students or software programmers who want to learn how computers work will love this app. CPU8 simulates the SAP-1 (Simple As Possible) 8-bit bread board computer that was famously the star of a series of videos by Ben...

Students or software programmers who want to learn how computers work will love this app. CPU8 simulates the SAP-1 (Simple As Possible) 8-bit bread board computer that was famously the star of a series of videos by Ben Eater. Using it, you can control a fully realized computer that utilizes microcode to illustrate the operation of individual computer instructions and their interrelationships with general purpose registers, program counters, memory registers, instruction registers, bus and memory through "control words". In addition, CPU8 contains an assembler that allows you to write programs and convert them into the machine language of the included simulated computer. A full programming manual is included. Write, assemble and run programs using this 8-bit computer to see how the process works from start to finish. FEATURES - Assembler for the 8-bit computer (with manual) - the 8-bit computer simulator - 16 instructions - 3 pseudo instructions - 16 address spaces - control the speed of the simulated computer clock - single step through programs or run to the end - 7 sample assembler programs to get started - links to all the Ben Eater design and teaching videos - A short history of computing through the ages (37 chapters) Suitable for classroom study, independent study or just for the sheer enjoyment of playing with a computer that you can watch and learn from. No individual information is accessed. Oh, did we mention it has wonderful flashing lights!

Version History CPU Engine Updates. New History Section: Input/Output Peripherals. Visual Improvements plus bug fixes. 2.10 09/18/2024 Added progress display for Flags New History Sections: Human Computers & Computers And Numbers. Additional information is History timeline adding key developments in 2024. Updated credits, copyright and general housekeeping. Visual Improvements plus bug fixes. 2.9 05/29/2024 History Time Line updated plus general application updates and improvements 2.8 10/31/2023 Added new History section entitled: Artificial Intelligence & Machine Learning plus misc updates and improvements. 2.7 06/05/2023 History now includes a section on Copyrights and Patents. Misc improvements, enhancements and fixes. 2.6 02/21/2023 Misc updates and improvements. 2.5.2 10/25/2022 Support for iOS 16. Enhanced support for iPhone 14 Pro and iPhone Pro Max 2.5.1 09/28/2022 Support for iOS 16 and iPadOS 16. Enhanced support for iPhone 14 Pro and iPhone Pro Max 2.5 09/20/2022 Enhancements and bug fixes Replaced History sections dealing with Encryption, VNET, Artificial Intelligence and Robots Added new History section called: Gaffes, Mistakes, Errors & Blunders. 2.4 08/09/2022 New History Section with introduction to Magnetic Amp computers of the early to mid-1900s. General bug fixes and improvements. 2.3 05/25/2022 Enhancements and bug fixes. 2.2 03/21/2022 Enhancements to Settings and instruction tracing, History section updates and several other small general improvements in this release update. 2.1 12/29/2021 Cleaned up Assembly output regarding single byte instructions. New History section covering Office Automation. Support for iPhone 13 models and 6th generation iPad. Implemented a cleaner overall display presentation along with several small general improvements. 2.0 09/30/2021 Additional information on IBM VM and VNET in history section. Misc updates and fixes. 1.12 08/03/2021 Miscellaneous improvements and bug fixes. 1.11 05/11/2021 Additional History sections: Section: Security, Encryption, Ciphers, Codes and Certificates Section: Robots, Androids And Other Automatons Section: Artificial Intelligence And Machine Learning Enhanced support for M1 equipped Macs with larger screens. Bug fixes and readability improvements Commit: V 1.10.1 Build 347 -- Fixed readability problem with table in AI section and added the missing Security section Commit: V 1.5.1 Build 416 -- Fixed readability problem with table in AL section 1.10.1 02/17/2021 There are new history sections in this release covering security, robotics and artificial intelligence. Plus, this release contains enhanced screen management for M1 powered Macs along with general bug fixes. 1.10 02/16/2021 Small improvements in this release, plus support for MacOS 11 Big Sur with Apple Silicon! 1.9 11/15/2020 Improvements in this update includes user interface enhancements, plus support for iPad Air generation 4 and the various new iPhone 12 models. 1.8 10/22/2020 Support of iPad Air generation 4 plus other minor enhancements, bug fixes and improvements... 1.7 09/27/2020 Minor bug fix, typo and user interface improvements. 1.6 06/29/2020 New bug fixes in this release: - Serious crash fixed for iOS releases prior to iOS 13 when setting Clock Speed - Improved assembler code editor support More to come… 1.5.1 04/03/2020 Four new history chapters dealing with Web, Search and Social Networking bringing the total to 25 New 'Feedback' function in Hints General user interface clean up and enhancements 1.5 03/05/2020 Last modifications to fully support Dark Mode in iOS 13 General enhancements and system efficiencies 1.4 01/27/2020 Fixed crash when using "Assemble" or "Load & Run" features when run on iOS prior to iOS 13. V1.3.1 01/08/2020

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Previous Versions

Here you can find the changelog of CPU8 since it was posted on our website on 2021-12-15 20:51:04. The latest version is 2.10 and it was updated on 2026-06-11 03:00:28. See below the changes in each version.

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