1 files changed, 2 insertions, 2 deletions
diff --git a/afl-as.h b/afl-as.h
index 2c84f9f3..9e91375d 100644
--- a/afl-as.h
+++ b/afl-as.h
@@ -189,7 +189,7 @@ static const u8* main_payload_32 =
   "  orb  $1, (%edx, %edi, 1)\n"
 #else
   "  incb (%edx, %edi, 1)\n"
-  "  adcb $0, (%edx, %edi, 1)\n"
+  "  adcb $0, (%edx, %edi, 1)\n" // never zero counter implementation. slightly better path discovery and little performance impact
 #endif /* ^SKIP_COUNTS */
   "\n"
   "__afl_return:\n"
@@ -418,7 +418,7 @@ static const u8* main_payload_64 =
   "  orb  $1, (%rdx, %rcx, 1)\n"
 #else
   "  incb (%rdx, %rcx, 1)\n"
-  "  adcb $0, (%rdx, %rcx, 1)\n"
+  "  adcb $0, (%rdx, %rcx, 1)\n" // never zero counter implementation. slightly better path discovery and little performance impact
 #endif /* ^SKIP_COUNTS */
   "\n"
   "__afl_return:\n"