RISC-V Design · All levels
Control Signal Generation from Opcode to Datapath: Comparison Matrix
Comparison Matrix for Control Signal Generation from Opcode to Datapath.
Comparison matrix
Comparison Matrix for Control Signal Generation from Opcode to Datapath is anchored on Incorrect control assertion rate in regression and decode-to-execute control fanout delay.. Convert observations into mechanism-backed decisions with explicit ownership.
diagram
RISC-V EVIDENCE MATRIX - Control Signal Generation from Opcode to Datapath
+--------------------------+--------------------------------+--------------------------------+---------------------------+
| Evidence | Tells you | Does not prove | Next action |
+--------------------------+--------------------------------+--------------------------------+---------------------------+
| perf counter timeline | where regression appears | exact mechanism causality | correlate with trace |
| decode/control dump | control intent per instruction | pipeline side-effect ordering | inspect retire semantics |
| trap + CSR logs | privilege/fault behavior | performance bottleneck alone | pair with CPI buckets |
| MMU/TLB walk trace | translation behavior | full system QoS impact | test mixed workloads |
| post-fix trend graph | movement after fix | long-term stability | run stress matrix |
+--------------------------+--------------------------------+--------------------------------+---------------------------+