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-rw-r--r--gen-trialdivtab.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gen-trialdivtab.c b/gen-trialdivtab.c
index 0a265046a..f7d07d27b 100644
--- a/gen-trialdivtab.c
+++ b/gen-trialdivtab.c
@@ -1,5 +1,7 @@
/* gen-trialdivtab.c
+ Contributed to the GNU project by Torbjörn Granlund.
+
Copyright 2009 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -240,7 +242,7 @@ mpn_mod_1s_4p_cps (mpz_t cps[7], mpz_t bparm)
mpz_mul_2exp (t, t, limb_bits - cnt);
mpz_sub (t, t, b);
mpz_mul_2exp (t, t, limb_bits);
- mpz_tdiv_q (bi, t, b); /* bi = B^2/b */
+ mpz_tdiv_q (bi, t, b); /* bi = B^2/b, except msb */
mpz_set_ui (t, 1);
mpz_mul_2exp (t, t, limb_bits); /* t = B */