https://github.com/vulcalien/6502-emulator

6502 processor emulator
https://github.com/vulcalien/6502-emulator

6502 cpu-emulator emulator

Last synced: 21 days ago
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6502 processor emulator

• Host: GitHub
• URL: https://github.com/vulcalien/6502-emulator
• Owner: Vulcalien
• License: gpl-3.0
• Created: 2021-06-07T19:58:26.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2024-03-04T20:21:55.000Z (10 months ago)
• Last Synced: 2024-10-16T12:28:48.113Z (2 months ago)
• Topics: 6502, cpu-emulator, emulator
• Language: C
• Homepage:
• Size: 70.3 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING

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README

        
# 6502 Emulator

Some time ago, I decided to create a CPU emulator in order to better

understand how these work.

This emulator is built as a **C library**.

## Using the library

1. Include the emulator header

```C

#include "6502_emulator.h"

```

2. Initialize the library

```C

cpu_library_init();

```

3. Create and set the CPU's IO functions

```C

cpu_read_byte = read_byte;

cpu_write_byte = write_byte;

```

4. Reset the CPU

```C

cpu_reset();

```

5. Make the CPU run

```C

while(1) {

    cpu_clock();

}

```

## Resources

- [This website](http://web.archive.org/web/20210803072420/http://www.obelisk.me.uk/6502/)

contains information about architecture, registers, instructions

and addressing modes.

- I also used some of the information present in

[this book](http://archive.6502.org/books/mcs6500_family_hardware_manual.pdf)

to make sure that the emulator behaves correctly.