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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 415c392a..94e517f8 100644
--- a/400.mu
+++ b/400.mu
@@ -32,6 +32,7 @@ sig debug-print? -> _/eax: boolean
 sig turn-on-debug-print
 sig turn-off-debug-print
 sig abort e: (addr array byte)
+sig dump-call-stack
 
 # streams
 sig clear-stream f: (addr stream _)