QEMU CPU Emulator (github bsd-user branch)
QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. QEMU has two operating modes: * Full system emulation. In this mode, QEMU emulates a full system (for example a PC), 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. It can be used to launch the Wine Windows API emulator or to ease cross-compilation and cross-debugging. As QEMU requires no host kernel patches to run, it is very safe and easy to use. This port builds static bsd-user targets named like qemu-mips-static. While still being experimental, people have already built many armv6/mips/mips64 ports using these and, e.g., poudriere. Some notes are also here: http://wiki.freebsd.org/QemuUserModeHowTo
pkg install qemu-user-static