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Adding more machine language instructions to the CPU (Patreon)

Published:
2017-07-07 21:02:18
Imported:
2026-06
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Adding more machine language instructions to the CPU

In this video, we'll add several new machine language instructions to our CPU: STA (store A), LDI (load immediate), and JMP (jump). Then we'll write a program that uses those instructions and walk through the execution. More 8-bit computer: https://eater.net/8bit The code from this video is on GitHub: http://bit.ly/2sK7Qlb Support me on Patreon: https://www.patreon.com/beneater https://www.eater.net https://twitter.com/ben_eater https://www.patreon.com/beneater

Comments

Anonymous

Eeexcellent! :-)

Anonymous

This Tutorials really really helped me a lot! Looking forward. Would like to see a development towards 6502 in terms of databus, addressbus, etc.

Mark Bosse

Ben, I watch everything on YouTube so don't show as a view. I have now seen every video you have posted. I learned more than I can say. One thing that would be great to see is video about the evolution of logic technologies. Kids who grew up after CMOS don't understand what the important steps in TTL were and hence can't read a data sheet or understand gate source/sink issues. I see it in their builds were they use "low power" technology and then waste it with a sea of resistors and capacitors everywhere. If they understood how old fashioned TTL could help them, they would do better work.