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-rw-r--r--tcg/README4
1 files changed, 4 insertions, 0 deletions
diff --git a/tcg/README b/tcg/README
index b03432e23a..b4d07b6f42 100644
--- a/tcg/README
+++ b/tcg/README
@@ -265,6 +265,10 @@ Convert t1 (32 bit) to t0 (64 bit) and does zero extension
* trunc_i64_i32 t0, t1
Truncate t1 (64 bit) to t0 (32 bit)
+* concat_i32_i64 t0, t1, t2
+Construct t0 (64-bit) taking the low half from t1 (32 bit) and the high half
+from t2 (32 bit).
+
********* Load/Store
* ld_i32/i64 t0, t1, offset