*** no comment ***

1 files changed, 13 insertions, 16 deletions

diff --git a/TODO b/TODO
index a79dd46..2f62bf6 100644
--- a/TODO
+++ b/TODO
@@ -1,20 +1,17 @@
-Aha!  I knew there had to be a way.  The old keyboard shortcutting
-code (which uses chess-legal-plies) was just way to slow.  On modern
-machines you couldn't notice it, but on my 300 MHz laptop in battery
-save mode, even with the byte-compiled files, I spent 1/4 of my time
-looking at the hourglass cursor.  So I kept chewing on the algorithm,
+delYsid: I knew there had to be a way.  The old keyboard shortcutting
+code (which uses chess-legal-plies) was just to slow.  On modern
+machines you wouldn't notice it, but on my 300 MHz laptop in battery
+saving mode, even with byte-compiled files, I spent 1/4 of my time
+looking at the hourglass cursor.  So I kept cleaning the algorithm,
 dropping the number of calls to chess-search-position (the biggest and
-slowest function in all of chess.el) from 5400 calls down to 4300
-calls.  But still it was slow.  Then I thought about it long and hard,
-and realized chess-legal-plies was going about its whole job
-backwards.  Since that function is only used by keyboard shortcutting,
-I found a way to optimize it for that task, while keeping it as
-general as before (by adding a "piece-or-color" argument).  The net
-result is that I got the number of calls to chess-search-position down
-to 797!!  That's 5000 calls less.  It dropped the number of uses of
-`chess-incr-index' by 20,000.  The new code is so fast I that when
-it's byte-compiled, I never see an hourglass cursor, even on my
-laptop.
+slowest function in chess.el) from 5400 calls down to 4300 calls.  But
+still it was too slow.  Then I thought about it long and hard, and
+realized chess-legal-plies was going about its whole job backwards.  I
+found a way to optimize it that resulted in dropping the number of
+calls to chess-search-position down to 797!!  That's 5000 fewer calls.
+The new code is so fast I that when it's byte-compiled, I never see an
+hourglass cursor, rarely even when un-byte-compiled in my slowest
+configuration!
 
 - Feature work remaining: