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This is great and a useful addition to the range of online emulators. I'd really like to see an online simulation of one of the early 8 bit chips (8080, 6502 o
by klelatti 6y ago
This is great and a useful addition to the range of online emulators.
I'd really like to see an online simulation of one of the early 8 bit chips (8080, 6502 or Z80) say that sits at a level between gates (visual6502) and simply implementing the machine code instructions - one where it would be possible to follow what is happening at block level on each clock cycle and where you could see data flows within the CPU? Hopefully that would give useful insight into early CPU design.
Does anyone know of such a simulator?
- LargoLasskhyfv 6y agoMaybe this? Z80 Explorer – a Zilog Z80 netlist-level simulator from 6 days ago. [1] https://news.ycombinator.com/item?id=23896816 https://news.ycombinator.com/item?id=23896816
- klelatti 6y agoThank you! I did see this when it appeared on HN but thought it was effectively a Visual 6502 but for the Z80. Having downloaded and looked in more detail I see that it has a lot more information than I originally thought. Even better, the accompanying blog posts (eg [1]) give as good a description of the layout of the Z80 and the relationship between the various elements as I have seen anywhere for any CPU of this era. I think there is still scope for something which gives a complete 'walkthrough' explanation of the operation of the Z80 based on this material. Maybe something I might start to work on! [1] https://baltazarstudios.com/z80-ground/ https://baltazarstudios.com/z80-ground/
- deleted 6y ago[deleted]