| Name | Cycle<br /> acc. | Speed | SMP | Mem<br /> usage | 32-bit | 64-bit | FP | SIMD | Bare<br /> metal | HV | XICS | MMU|
|------------------|------------------|-------|-----|-----------------|--------|--------|------|------|------------------|----|------|----|
-| IBM Sim | yes | unk | unk | unknown | yes | yes | yes | yes | yes | yes| yes | yes|
+| IBM Sim | no? | unk | unk | unknown | yes | yes | yes | yes | yes | yes| yes | yes|
| gem5 | yes | 20k/s?| no | insane | yes | yes | no | no | no | no | no | no |
| gem5-experimental| yes | 20k/s?| no | insane | yes | yes | no | no | yes | no | yes | yes|
| gem5-virginiatech| yes | 20k/s?| no | insane | yes | yes | no | TODO | no | no | no | no |