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From: Aurelien Jarno <aurelien@aurel32.net>
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Date: Fri, 13 Mar 2009 09:35:49 +0000
Subject: [Qemu-devel] [6837] tcg/x86: add bswap16_i32 ops
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Revision: 6837
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6837
Author:   aurel32
Date:     2009-03-13 09:35:49 +0000 (Fri, 13 Mar 2009)
Log Message:
-----------
tcg/x86: add bswap16_i32 ops

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Modified Paths:
--------------
    trunk/tcg/i386/tcg-target.c
    trunk/tcg/i386/tcg-target.h

Modified: trunk/tcg/i386/tcg-target.c
===================================================================
--- trunk/tcg/i386/tcg-target.c	2009-03-13 09:35:41 UTC (rev 6836)
+++ trunk/tcg/i386/tcg-target.c	2009-03-13 09:35:49 UTC (rev 6837)
@@ -1034,6 +1034,11 @@
         tcg_out_brcond2(s, args, const_args);
         break;
 
+    case INDEX_op_bswap16_i32:
+        tcg_out8(s, 0x66);
+        tcg_out_modrm(s, 0xc1, SHIFT_ROL, args[0]);
+        tcg_out8(s, 8);
+        break;
     case INDEX_op_bswap32_i32:
         tcg_out_opc(s, (0xc8 + args[0]) | P_EXT);
         break;
@@ -1130,6 +1135,7 @@
     { INDEX_op_sub2_i32, { "r", "r", "0", "1", "ri", "ri" } },
     { INDEX_op_brcond2_i32, { "r", "r", "ri", "ri" } },
 
+    { INDEX_op_bswap16_i32, { "r", "0" } },
     { INDEX_op_bswap32_i32, { "r", "0" } },
 
     { INDEX_op_neg_i32, { "r", "0" } },

Modified: trunk/tcg/i386/tcg-target.h
===================================================================
--- trunk/tcg/i386/tcg-target.h	2009-03-13 09:35:41 UTC (rev 6836)
+++ trunk/tcg/i386/tcg-target.h	2009-03-13 09:35:49 UTC (rev 6837)
@@ -45,6 +45,7 @@
 #define TCG_TARGET_CALL_STACK_OFFSET 0
 
 /* optional instructions */
+#define TCG_TARGET_HAS_bswap16_i32
 #define TCG_TARGET_HAS_bswap32_i32
 #define TCG_TARGET_HAS_neg_i32
 #define TCG_TARGET_HAS_not_i32