Do not count dret instruction when not in debug mode - it won't retire (

#180) fixes #164 Signed-off-by: Szymon Bieganski <[email protected]>
openhwgroup · Feb 26, 2024 · 00bad97 · 00bad97
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commit 00bad97
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/rtl/cve2_id_stage.sv b/rtl/cve2_id_stage.sv
@@ -755,6 +755,7 @@ module cve2_id_stage #(
   // Signal which instructions to count as retired in minstret, all traps along with ebrk and
   // ecall instructions are not counted.
   assign instr_perf_count_id_o = ~ebrk_insn & ~ecall_insn_dec & ~illegal_insn_dec &
+      ~(dret_insn_dec & ~debug_mode_o) &
       ~illegal_csr_insn_i & ~instr_fetch_err_i;
 
   // An instruction is ready to move to the writeback