Correctly set mateThreat in search()

[stockfish] / Readme.txt

diff --git a/Readme.txt b/Readme.txt
index 377d44aa8e15d1cc32d8b25a856b5946aaba7827..1a3713985e7cec3e47746503892284cd518f4c64 100644 (file)
--- a/Readme.txt
+++ b/Readme.txt
@@ -1,9 +1,9 @@
 1. Introduction\r
 ---------------\r
 \r
-Stockfish is a free UCI chess engine derived from Glaurung. It is not\r
-a complete chess program, but requires some UCI compatible GUI (like\r
-XBoard with PolyGlot, eboard, Jos�, Arena, Sigma Chess, Shredder,\r
+Stockfish is a free UCI chess engine derived from Glaurung 2.1. It is\r
+not a complete chess program, but requires some UCI compatible GUI\r
+(like XBoard with PolyGlot, eboard, Jos�, Arena, Sigma Chess, Shredder,\r
 Chess Partner, or Fritz) in order to be used comfortably.  Read the\r
 documentation for your GUI of choice for information about how to use\r
 Stockfish with your GUI.\r
@@ -20,7 +20,7 @@ cores on your computer.
 2. Files\r
 --------\r
 \r
-This distribution of Glaurung consists of the following files:\r
+This distribution of Stockfish consists of the following files:\r
 \r
   * Readme.txt, the file you are currently reading.\r
 \r
@@ -28,8 +28,8 @@ This distribution of Glaurung consists of the following files:
     License.\r
 \r
   * src/, a subdirectory containing the full source code, including a\r
-    Makefile that can be used to compile Glaurung on Unix-like\r
-    systems.  For further information about how to compile Glaurung\r
+    Makefile that can be used to compile Stockfish on Unix-like\r
+    systems.  For further information about how to compile Stockfish\r
     yourself, read section 4 below.\r
 \r
   * polyglot.ini, for using Stockfish with Fabien Letouzey's PolyGlot\r
@@ -45,7 +45,6 @@ PolyGlot documentation.  The book file can be selected by setting the
 UCI parameter "Book File".\r
 \r
 \r
-\r
 4. Compiling it yourself\r
 ------------------------\r
 \r
@@ -54,27 +53,18 @@ Stockfish directly from the source code with the included Makefile.
 The exception is computer with big-endian CPUs, like PowerPC\r
 Macintoshes. Some of the bitboard routines in the current version of\r
 Stockfish are endianness-sensitive, and won't work on a big-endian CPU.\r
-Ensuring that the line with #define USE_32BIT_ATTACKS" near the top\r
-of bitboard.h is commented out should solve this problem.\r
-Commenting out the line with "#define USE_32BIT_ATTACKS" near the\r
-\r
-There is also a problem with compiling Stockfish on certain 64-bit\r
-systems, regardless of the endianness.  If Stockfish segfaults\r
-immediately after startup, try to comment out the line with\r
-"#define USE_FOLDED_BITSCAN" near the beginning of bitboard.h and\r
-recompile.\r
-\r
-Finally, even if Stockfish does work without any changes on your\r
-computer, it might be possible to improve the performance by changing\r
-some of the #define directives in bitboard.h.  The default settings\r
-are optimized for 64-bit CPUs.  On 32-bit CPUs, it is probably better\r
-to switch on USE_32BIT_ATTACKS, and to use BITCOUNT_SWAR_32 instead of\r
-BITCOUNT_SWAR_64.  For computers with very little memory (like\r
-handheld devices), it is possible to conserve memory by defining\r
-USE_COMPACT_ROOK_ATTACKS.\r
-\r
-\r
-6. Terms of use\r
+\r
+Stockfish has POPCNT instruction runtime detection and support. This can\r
+give an extra speed on Core i7 or similar systems. To enable this feature\r
+(disabled by default) simply uncomment #define USE_POPCNT in bitcount.h\r
+before to compile.\r
+\r
+On 64 bit Unix-like systems the 'bsfq' assembly instruction will be used\r
+for bit counting. Detection is automatic at compile time, but in case you\r
+experience compile problems you can comment out #define USE_BSFQ line in types.h\r
+\r
+\r
+5. Terms of use\r
 ---------------\r
 \r
 Stockfish is free, and distributed under the GNU General Public License\r
@@ -93,7 +83,7 @@ For full details, read the copy of the GPL found in the file named
 Copying.txt.\r
 \r
 \r
-7. Feedback\r
+6. Feedback\r
 -----------\r
 \r
 The author's e-mail address is mcostalba@gmail.com\r