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QEMU is a full emulator, it emulates the whole CPU warts and all.
Btw, there's also qemu usermode emulation which only does cpu emulation plus syscall translation.
Allows for example to run 32 bit big endian PowerPC Linux programs on 64 bit little endian x64 Linux.
Like for example AROS PPC Hosted/Linux (older version, because unmaintained, so tried old build from 2013) which "boots" into AROS desktop in 2 seconds on AMD Ryzen 7 7800X3D. With maybe 10 year old PC (i5 4590) it was 4 seconds.
[ Edited by Georg 26.01.2026 - 12:42 ]
