X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=base-target-features.lisp-expr;fp=base-target-features.lisp-expr;h=2428237d761e873c55af459564569085a682c5b0;hb=3254e1b6fb33e4ff5be5f37ba4bbcc34ca151cf7;hp=ca1e90cd35130f7c21500858b81fe803026e00c9;hpb=f17e3d27d7ff599f9443d011d17017a2a858c81a;p=sbcl.git

diff --git a/base-target-features.lisp-expr b/base-target-features.lisp-expr
index ca1e90c..2428237 100644
--- a/base-target-features.lisp-expr
+++ b/base-target-features.lisp-expr
@@ -309,6 +309,12 @@
  ;; foreign code that uses a 32-bit off_t.
  ; :largefile
 
+ ;; Enabled automatically on platforms that have VOPs to compute the
+ ;; high half of a full word-by-word multiplication.  When disabled,
+ ;; SB-KERNEL:%MULTIPLY-HIGH is implemented in terms of
+ ;; SB-BIGNUM:%MULTIPLY.
+ ; :multiply-high-vops
+
  ;;
  ;; miscellaneous notes on other things which could have special significance
  ;; in the *FEATURES* list