# Xtensa System emulator

Two executables cover simulation of both Xtensa endian options, `qemu-system-xtensa` and `qemu-system-xtensaeb`. Two different machine types are emulated:

- Xtensa emulator pseudo board "sim"

- Avnet LX60/LX110/LX200 board

The sim pseudo board emulation provides an environment similar to one provided by the proprietary Tensilica ISS. It supports:

- A range of Xtensa CPUs, default is the DC232B

- Console and filesystem access via semihosting calls

The Avnet LX60/LX110/LX200 emulation supports:

- A range of Xtensa CPUs, default is the DC232B

- 16550 UART

- OpenCores 10/100 Mbps Ethernet MAC