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-rw-r--r--subx/055trace.subx3
1 files changed, 2 insertions, 1 deletions
diff --git a/subx/055trace.subx b/subx/055trace.subx
index dd187c75..c938f564 100644
--- a/subx/055trace.subx
+++ b/subx/055trace.subx
@@ -66,7 +66,8 @@ initialize-trace-stream:
   c7          0/copy              1/mod/*+disp8   0/rm32/EAX    .           .             .           .           8/disp8         0xff4/imm32       # copy 0xff4 to *(EAX+8)
   c3/return
 
-# Append to the given trace stream.
+# Append a string to the given trace stream.
+# Silently give up if it's already full. Or truncate the string if there isn't enough room.
 trace:  # t : (address trace-stream), line : string
   # prolog
   55/push-EBP