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qemu
QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes:
- Full system emulation. In this mode, QEMU emulates a full system (for example a PC or a PowerMac), including a processor and various peripherials. It can be used to launch different Operating Systems without rebooting the PC or to debug system code.
- User mode emulation (Linux host only). In this mode, QEMU can launch Linux processes compiled for one CPU on another CPU.