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List:       bochs-cvs
Subject:    [Bochs-cvs] CVS: bochs/cpu shift16.cc,1.52,1.53
From:       "Stanislav Shwartsman" <sshwarts () users ! sourceforge ! net>
Date:       2010-02-26 23:09:32
Message-ID: E1Nl9JM-0002pC-IA () sfp-cvsdas-2 ! v30 ! ch3 ! sourceforge ! com
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Update of /cvsroot/bochs/bochs/cpu
In directory sfp-cvsdas-2.v30.ch3.sourceforge.com:/tmp/cvs-serv10833

Modified Files:
	shift16.cc 
Log Message:
optimization


Index: shift16.cc
===================================================================
RCS file: /cvsroot/bochs/bochs/cpu/shift16.cc,v
retrieving revision 1.52
retrieving revision 1.53
diff -u -d -r1.52 -r1.53
--- shift16.cc	4 Dec 2009 16:53:12 -0000	1.52
+++ shift16.cc	26 Feb 2010 23:09:30 -0000	1.53
@@ -153,7 +153,7 @@
   SET_FLAGS_OSZAPC_LOGIC_16(result_16);
 
   cf = (op1_16 >> (count - 1)) & 0x1;
-  of = (((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result14 ^ result15
+  of = ((Bit16u)((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result14 ^ result15
   SET_FLAGS_OxxxxC(of, cf);
 }
 
@@ -194,7 +194,7 @@
   SET_FLAGS_OSZAPC_LOGIC_16(result_16);
 
   cf = (op1_16 >> (count - 1)) & 0x1;
-  of = (((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result14 ^ result15
+  of = ((Bit16u)((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result14 ^ result15
   SET_FLAGS_OxxxxC(of, cf);
 }
 
@@ -382,7 +382,7 @@
   }
 
   cf = (op1_16 >> (count - 1)) & 0x1;
-  of = (((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result15 ^ result14
+  of = ((Bit16u)((result_16 << 1) ^ result_16) >> 15) & 0x1; // of = result15 ^ result14
   SET_FLAGS_OxxxxC(of, cf);
 }
 
@@ -470,7 +470,7 @@
   cf = (op1_16 >> (count - 1)) & 0x1;
   // note, that of == result15 if count == 1 and
   //            of == 0        if count >= 2
-  of = (((result_16 << 1) ^ result_16) >> 15) & 0x1;
+  of = ((Bit16u)((result_16 << 1) ^ result_16) >> 15) & 0x1;
 
   SET_FLAGS_OSZAPC_LOGIC_16(result_16);
   SET_FLAGS_OxxxxC(of, cf);


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