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).