0

March 16, 2016 AT 9:17 am

Playing SID Files with py65 Hardware Simulation via @dangerousproto

IMG_3158

When I saw the https://github.com/atbrask/RealSIDShield project I thought that the whole idea of using py65 to emulate the 6502 was pretty neat, and very accessible for me since I’m a Python guy. Then I stumbled across Acid64, which also emulates the 6502 in software and has a couple of other neat features. So, the plan is to support both. I’m not sure which one I’ll implement first, but it should be relatively easy to get both working… and since Acid64 is Windows only, when I’m on Mac or Linux I can use a python script to stream music.

I use py65, an implementation of the 6502 MPU in Python, in order to “play” the SID file. Since a SID file is basically a 6502 program, we can feed the binary data to the MPU and then let it run until each frame has been written to memory. Then in Python we read the 6502’s memory in order to see what the register values that should be written to the SID are. The SID chip is mapped from $D400-D41C of the C64’s memory, so we can read the register values that we need from there.

This is a fun thread!


Featured Adafruit Products!

NewImage

Adafruit HUZZAH ESP8266 Breakout: Add Internet to your next project with an adorable, bite-sized WiFi microcontroller, at a price you like! The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with DNS support as well. Read more.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — Presentation: Ten Year Futures – Benedict Evans

Wearables — Toy with inspiration

Electronics — Servo Pulses

Biohacking — Nutrigenomics – Personalized Vitamin Supplements Based on DNA

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.