PRIME TIME

[Claudio L.]

(03-09-2016 04:11 PM)Han Wrote:  I imagine that whatever existing ARM code they already have implemented in the 50G would not require too much modification so that it can become an APP on the Prime since that's really all that the Saturn ROM on the 50G is -- an app.

I don't think manjo was planning to use the actual emulator that's embedded currently in the 50g (unless I misinterpreted him), but one (any) open source emulator, ported to the Prime and running in a similar way the 50g works.
In any case, the Saturn emulator has 2 parts: a) emulating the logic and math of the CPU, and b) emulating the hardware I/O of the 48/49 series.
The first part doesn't need much change, but the second one has to be rewritten from scratch to interface directly with the real hardware. I'm talking about timers, interrupts, keyboard, and screen emulation.

Porting Emu48 or similar to the Prime hardware would be an interesting project. Once all the hardware drivers are ready, I'll jump in and port newRPL to the Prime too.