clarify DCT/FFT

diff --git a/openpower/sv/rfc/ls001.mdwn b/openpower/sv/rfc/ls001.mdwn
index fbf51a9f2f7a67eb22cc61529a166e31b52018c2..bb7b5d4f7e527b7330fbe7f0b3360edab45dd701 100644 (file)
--- a/openpower/sv/rfc/ls001.mdwn
+++ b/openpower/sv/rfc/ls001.mdwn
@@ -183,7 +183,8 @@ DSPs and Supercomputing ISAs.
 
 * DCT/FFT REMAP brings more capability than TI's MSP-Series DSPs and
   Qualcom Hexagon DSPs, and is not restricted to Integer or FP.
-  (Galois Field is possible, implementing NTT).
+  (Galois Field is possible, implementing NTT). Operates *in-place*
+  significantly reducing register usage.
 * Matrix REMAP brings more capability than any other Matrix Extension
   (AMD GPUs, Intel, ARM), not being restricted to Power-2 sizes. Also not
   limited to the type of operation, it may perform Warshall Transitive