Backend¶

Commit¶

The commit logic is mostly composed :

Reschedule status Which specifies the older ROB ID on which a jump / trap is pending.
Commit Logic Which waits for the older instruction completion before committing it, and eventually applying some reschedule.

../../_images/commit.png

Register file¶

Currently, the register file is inferred into simple dual-port distributed ram :

Each write port will create its own bank
Each read port will read each bank, and mux the correct one using a distributed-ram-xor-based LVT (live value table)