CPU Features

The QEMU emulation of the OpenRISC architecture provides following built in features.

• Shadow GPRs
• MMU TLB with 128 entries, 1 way
• Power Management (PM)
• Programmable Interrupt Controller (PIC)
• Tick Timer

These features are on by default and the presence can be confirmed by checking the contents of the Unit Presence Register (UPR) and CPU Configuration Register (CPUCFGR).