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diff --git a/openpower/sv/bitmanip/appendix.mdwn b/openpower/sv/bitmanip/appendix.mdwn
index bb784ffdb5607a5244e0ae09a6375099e0756db0..f8ab73aaf17133106c95af7aca7e6f0c0427e99d 100644 (file)
--- a/openpower/sv/bitmanip/appendix.mdwn
+++ b/openpower/sv/bitmanip/appendix.mdwn
@@ -7,6 +7,7 @@ links
 * <https://gmplib.org/~tege/division-paper.pdf>
 * <https://github.com/Richard-Mace/huge-integer-class/blob/master/HugeInt.cpp> nice-looking well-commented c++ implementation
 * <https://lists.libre-soc.org/pipermail/libre-soc-dev/2022-April/004739.html>
+* <https://github.com/bcoin-org/libtorsion/blob/master/src/mpi.c#L2872>
 
 the most efficient division algorithm is probably Knuth's Algorithm D (with modifications from the exercises section of his book) which is O(n^2) and uses 2N-by-N-bit div/rem