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).