add recip-sqrt as separate proposal

diff --git a/ztrans_proposal.mdwn b/ztrans_proposal.mdwn
index 2c941cdb68102888d0366b06409bccdd6492f2cc..17ca43510538cef91446396e7016faed86aaf7b4 100644 (file)
--- a/ztrans_proposal.mdwn
+++ b/ztrans_proposal.mdwn
@@ -33,6 +33,8 @@ Zarctrignpi
 * Errors **MUST** be repeatable.
 * How about three Platform Specifications? 3D, UNIX and Embedded?
 <http://lists.libre-riscv.org/pipermail/libre-riscv-dev/2019-August/002361.html>
+  Accuracy requirements for dual (triple) purpose implementations must
+  meet the higher standard.
 * Reciprocal Square-root is in its own separate extension (Zfrsqrt) as
   it is desirable on its own by other implementors.  This to be evaluated.