* [Qemu-devel] [6837] tcg/x86: add bswap16_i32 ops
@ 2009-03-13 9:35 Aurelien Jarno
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From: Aurelien Jarno @ 2009-03-13 9:35 UTC (permalink / raw)
To: qemu-devel
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
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2009-03-13 9:35 [Qemu-devel] [6837] tcg/x86: add bswap16_i32 ops Aurelien Jarno
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