RISC-V Design · All levels
Trap Entry/Exit, Interrupt Priority, and Exception Precision: Design Space
Design Space for Trap Entry/Exit, Interrupt Priority, and Exception Precision.
Design space
Design Space for Trap Entry/Exit, Interrupt Priority, and Exception Precision is anchored on Worst-case trap-entry cycles, interrupt response jitter, and precise-exception replay success rate under pipeline backpressure.. Convert observations into mechanism-backed decisions with explicit ownership.
Trade latency and throughput against power and area.
Prefer architecture options with clear software contract impact.
Quantify extension-profile cost before enabling by default.
Keep bring-up and validation ownership explicit.
Trend lens
diagram
BEFORE / AFTER TREND - Trap Entry/Exit, Interrupt Priority, and Exception Precision
Worst-case trap-entry cycles, interrupt response jitter, and precise-exception replay success rate under pipeline backpressure.
^
| o target band
| o after fix + reruns
| o
| o baseline (failing)
+--------------------------------------------------> iteration
capture issue isolate mechanism close + monitor
Use this view to confirm the gain is causal and stable across seeds.