About CPU8
See how a computer executes your code while learning about the internal workings of modern computers. Students or software programmers who want to learn how computers work will love this app. CPU8 simulates the SAP-1...
See how a computer executes your code while learning about the internal workings of modern computers.
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!
Oct 31, 2023
Version 2.8
History Time Line updated plus general application updates and improvements
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 2.8 and it was updated on 2024-04-19 17:03:24. See below the changes in each version.
CPU8 version 2.8
Updated At: 2023-10-31
Changes: Oct 31, 2023
Version 2.8
History Time Line updated plus general application updates and improvements
CPU8 version 2.7
Updated At: 2023-06-05
Changes: Jun 5, 2023
Version 2.7
Added new History section entitled: Artificial Intelligence & Machine Learning plus misc updates and improvements.
CPU8 version 2.6
Updated At: 2023-02-21
Changes: Feb 21, 2023
Version 2.6
History now includes a section on Copyrights and Patents.
Misc improvements, enhancements and fixes.
CPU8 version 2.4
Updated At: 2022-08-09
Changes: Aug 9, 2022 Version 2.4
Enhancements and bug fixes
Replaced History sections dealing with Encryption, VNET, Artificial Intelligence and Robots
Added new History section called: Gaffes, Mistakes, Errors & Blunders.
CPU8 version 2.2
Updated At: 2022-03-21
Changes: Mar 21, 2022 Version 2.2
Enhancements and bug fixes.
CPU8 version 2.1
Updated At: 2021-12-29
Changes: Dec 29, 2021 Version 2.1
Enhancements to Settings and instruction tracing, History section updates and several other small general improvements in this release update.
CPU8 version 2.0
Updated At: 2021-09-30
Changes: Sep 30, 2021 Version 2.0
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.
Disclaimer
Official App Store Link
We do not host CPU8 on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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