|  | OpenRISC 1000 CPU architecture support | 
|  | ====================================== | 
|  |  | 
|  | QEMU's TCG emulation includes support for the OpenRISC or1200 implementation of | 
|  | the OpenRISC 1000 cpu architecture. | 
|  |  | 
|  | The or1200 cpu also has support for the following instruction subsets: | 
|  |  | 
|  | - ORBIS32 (OpenRISC Basic Instruction Set) | 
|  | - ORFPX32 (OpenRISC Floating-Point eXtension) | 
|  |  | 
|  | In addition to the instruction subsets the QEMU TCG emulation also has support | 
|  | for most Class II (optional) instructions. | 
|  |  | 
|  | For information on all OpenRISC instructions please refer to the latest | 
|  | architecture manual available on the OpenRISC website in the | 
|  | `OpenRISC Architecture <https://openrisc.io/architecture>`_ section. |