CPU Simulator 4+

Develop & Run Assembly Code

Andrew Palombo

Designed for iPad

    • 3.6 • 5 Ratings
    • Free

Screenshots

Description

CPU Simulator is intended for students studying A-Level AQA Computer Science, who need to understand certain information on how a computer’s CPU functions. Specifically, the fetch-decode-execute cycle and how components of the processor change at each stage – depending on the code being run.

An interactive interface shows the components of the CPU, their contents, a description of what has changed in one clock cycle, an IDE to develop assembly code, an interface to view corresponding machine code, an interface to change preferences and more.

Components you can track:
• Address Bus
• Data Bus
• Clock
• Program Counter (PC)
• Current Instruction Register (CIR)
• Memory Address Register (MAR)
• Memory Buffer Register (MBR)
• 128 General Purpose Registers
• Arithmetic Logic Unit (ALU)
• Status Register
• 128 Data Memory Locations
• Instruction Memory

Options you can change:
• Run Speed (including stepped mode)
• Number Base

This is a document-based application which means that you can create and run an unlimited number of unique simulations, save and share them.

This app is primarily intended to help teach ‘4.7.3.2 The Fetch-Execute cycle and the role of registers within it’ of the AQA A-Level specification, using the Harvard Architecture.

Ratings and Reviews

3.6 out of 5
5 Ratings

5 Ratings

IssacS1 ,

Branching Operations don’t work

Hope to see some updates, Please update!

Nicely formatted app with pretty good visual appeal to it, but I’ve noticed that the app almost always crashes when using branching operations within the code.

FNF man ,

“Challenging to Use Without Clear Documentation: Three Stars”

I found this simulator to be somewhat challenging to use, as I was unable to determine which assembly language was being used by the software. Despite my best efforts to locate documentation or reach out to the developer, I was unable to obtain this information. Without a clear understanding of the assembly language being simulated, I found it difficult to use the software to its full potential. Overall, I appreciate the concept behind this simulator, but I would have appreciated more transparency from the developer regarding the assembly language used. It’s possible that other users will have an easier time with this software if they are more familiar with the specific language used, but for me, the lack of clarity made it frustrating to use.

ecolesthecreator ,

Cool app

Please consider open sourcing!!! The community can help maintain and add new features

App Privacy

The developer, Andrew Palombo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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