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-rw-r--r--subx/apps/crenshaw2-1.subx3
1 files changed, 2 insertions, 1 deletions
diff --git a/subx/apps/crenshaw2-1.subx b/subx/apps/crenshaw2-1.subx
index 6857c6a4..09f551c3 100644
--- a/subx/apps/crenshaw2-1.subx
+++ b/subx/apps/crenshaw2-1.subx
@@ -73,7 +73,8 @@ $main:end:
 
 # Read a sequence of digits into 'out'. Abort if there are none, or if there
 # are too many to fit in 'out'.
-# 'Look' must be initialized with the current byte.
+# Input comes from the global variable 'Look' (first byte) and the argument
+# 'in' (rest).
 get-num:  # in : (address buffered-file), out : (address stream), err : fd or (address stream), ed : (address exit-descriptor) -> <void>
   # pseudocode:
   #   if !is-digit?(Look) expected(ed, err, "integer")