@puppygirlhornypost2 @[email protected] @[email protected] It's Boeing, do you honestly expect anything less?

You can't just add memory protection to AmigaOS because the architecture assumes user programs can share pointers with each other to chunks of RAM owned by each other.Consequently, AmigaOS doesn't even attempt to compact regions of user-allocated memory because it has no idea where all the pointers might be within messages in transit, as well as in programs own memory.I don't remember too many fragmentation issues. Running out of limited chip RAM, yes. Running out of total free RAM, yes.

The QEMU/KVM hypervisor on PowerPC/POWER is quite clever. First of all, the fact that it works at all on G3/G4/G5/PS3/etc. CPUs that don't even have a hypervisor mode is kind of amazing. It's called "KVM-PS" (for "problem state", the IBM term for "user mode"), vs. "KVM-HV" for the kernel module that uses a real hypervisor.The PPC KVM module knows how to trap and emulate the "zero a cache line" instruction, which is how you can run old versions of MacOS 9 or X on a recent POWER9 or whatever.