1 files changed, 3 insertions, 2 deletions
diff --git a/src/a.tex b/src/a.tex
index c4a8d26..2502b43 100644
--- a/src/a.tex
+++ b/src/a.tex
@@ -232,8 +232,9 @@ only take four instructions.
     cas:
         lr.w t0, (a0)        # Load original value.
         bne t0, a1, fail     # Doesn't match, so fail.
-        sc.w a0, a2, (a0)    # Try to update.
-        bnez a0, cas         # Retry if store-conditional failed.
+        sc.w t0, a2, (a0)    # Try to update.
+        bnez t0, cas         # Retry if store-conditional failed.
+        li a0, 0             # Set return to success.
         jr ra                # Return.
     fail:
         li a0, 1             # Set return to failure.