token_unseal: use cgettop
diff --git a/sdk/core/token_library/token_unseal.S b/sdk/core/token_library/token_unseal.S
index 3445290..62eaece 100644
--- a/sdk/core/token_library/token_unseal.S
+++ b/sdk/core/token_library/token_unseal.S
@@ -90,9 +90,7 @@
/* Subset bounds to ->data */
// Get the top into t1
- cgetlen t1, ca0
- cgetbase t0, ca0
- add t1, t1, t0
+ cgettop t1, ca0
// Move the address to the start of the data
cincoffset ca0, ca0, TokenSObj_offset_data
// Subtract the address of the (to-be-returned-unsealed) data from the top to