Re: re-booting from keyboard

[Mete Balci]

Not yet but I can probably commit it to the sdl3 branch soon.

On Fri, Dec 6, 2024 at 5:47 PM Alfred M. Szmidt <ams@gnu.org> wrote:

   I did exactly the same plus zeroed the memory arrays etc. I
   probably miss something.

   I am not sure and didnt read anywhere where to reboot from, maybe
   it shouldnt be prom but why it wouldnt be. It is an electrical
   signal so it is logical rebooting to be the same as normal boot
   (plus checking the kbd for cold/warm boot).

Do you have this on a branch somewhere?

   On Fri, 6 Dec 2024 at 17:33, Alfred M. Szmidt <ams@gnu.org> wrote:

       I have read all of them. So I understand it right then, I need to
       figure out how to correctly reset usim like boot signal comes from
       iob in the hardware. I tried obvious things I mentioned but it
       doesnt work yet.

    Random guess, if you would just keep KBD CSR LOW/HIGH (so that things
    know if warm or cold), and then set prom_enabled_flag = true, maybe
    resetting the CPU pipeline variables p0/p1/.. you'd get the same
    result?

    I'd assume that execution would have to start from PROM when you cold
    or warm boot.

    The -w flag to usim does the 'warm' boot sequence given a state file.