I think the concern here isn't about "purity" as such, more that there are already situations where input responsiveness (which is one of the Amiga's defining characteristics) is slightly compromised - such as during disk access. This is certainly noticeable If I do a side-by-side comparison between TC64 Minimig (which has PS/2 mouse decoded in the FPGA) and MiST (which has USB mouse handled by ARM and sent over SPI to the FPGA).ZigZag wrote: ↑Sun Aug 23, 2020 8:37 amTo those distressed by the concept of utilising the ARM CPU to expand a virtual Amiga's functionality, MiSTer's ability to recreate hardware in FPGA is superb, and there's no reason a faithful, original specs Amiga in pure FPGA can't coexist with one which expands possibilities & functionality using the ARM CPU. Why impose unnecessary restrictions on developers? If you don't personally want to use some features because they are not "pure FPGA" no one will hold that against you. Developers are free to develop as they wish, and you can use your MiSTer in any way you want.
I don't imagine it will be an insurmountable problem, but certainly something to keep in mind as more facilities are handed off to the ARM.