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-rw-r--r--400.mu1
1 files changed, 1 insertions, 0 deletions
diff --git a/400.mu b/400.mu
index a5064018..e7f4c599 100644
--- a/400.mu
+++ b/400.mu
@@ -26,6 +26,7 @@ sig check-strings-equal s: (addr array byte), expected: (addr array byte), msg:
 # debugging
 sig check-stack
 sig show-stack-state
+sig debug-print x: (addr array byte), fg: int, bg: int
 
 # streams
 sig clear-stream f: (addr stream _)