English Amiga Board - View Single Post - Correct way to hard reset in the bootblock on 1.3-3.1?

Photon · 15 September 2021, 15:15

a/b, it's more likely that a mistake was left in the code, and that this was corrected. (And despite the unaligned RESET, it might not have been a mistake at the time. One of my absolute thoughts is: "You can never be future-compatible, you can only be backwards compatible or not".) And when KS2+ released, a function to do it was added, even though the old code from 1989 works fine on KS2+ (for a soft reset).

For a hard reset, you could say that I need to reset without using the OS, since the OS could be compromised. (Disable, Supervisor/SuperState, ColdReboot could all be "hacked".)

But I don't want some overthought, overwrought antivirus code that may fail on some system.

I could take over the hardware, nuke Exec, hardware reset and prevent most of it and that's fine. For the soft reset I'll use the only allowed code, 2nd edition.

If I am to do this, I need a non-Supervisor() way to read VBR.

15 September 2021, 15:15	#39
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,647	a/b, it's more likely that a mistake was left in the code, and that this was corrected. (And despite the unaligned RESET, it might not have been a mistake at the time. One of my absolute thoughts is: "You can never be future-compatible, you can only be backwards compatible or not".) And when KS2+ released, a function to do it was added, even though the old code from 1989 works fine on KS2+ (for a soft reset). For a hard reset, you could say that I need to reset without using the OS, since the OS could be compromised. (Disable, Supervisor/SuperState, ColdReboot could all be "hacked".) But I don't want some overthought, overwrought antivirus code that may fail on some system. I could take over the hardware, nuke Exec, hardware reset and prevent most of it and that's fine. For the soft reset I'll use the only allowed code, 2nd edition. If I am to do this, I need a non-Supervisor() way to read VBR. Last edited by Photon; 15 September 2021 at 20:12.