From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [6838] tcg/x86_64: add bswap16_i{32, 64} and bswap32_i64 ops
Date: Fri, 13 Mar 2009 09:35:55 +0000 [thread overview]
Message-ID: <E1Li3o3-00075z-NC@cvs.savannah.gnu.org> (raw)
Revision: 6838
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6838
Author: aurel32
Date: 2009-03-13 09:35:55 +0000 (Fri, 13 Mar 2009)
Log Message:
-----------
tcg/x86_64: add bswap16_i{32,64} and bswap32_i64 ops
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/tcg/x86_64/tcg-target.c
trunk/tcg/x86_64/tcg-target.h
Modified: trunk/tcg/x86_64/tcg-target.c
===================================================================
--- trunk/tcg/x86_64/tcg-target.c 2009-03-13 09:35:49 UTC (rev 6837)
+++ trunk/tcg/x86_64/tcg-target.c 2009-03-13 09:35:55 UTC (rev 6838)
@@ -1094,7 +1094,14 @@
args[3], P_REXW);
break;
+ case INDEX_op_bswap16_i32:
+ case INDEX_op_bswap16_i64:
+ tcg_out8(s, 0x66);
+ tcg_out_modrm(s, 0xc1, SHIFT_ROL, args[0]);
+ tcg_out8(s, 8);
+ break;
case INDEX_op_bswap32_i32:
+ case INDEX_op_bswap32_i64:
tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT, 0, args[0], 0);
break;
case INDEX_op_bswap64_i64:
@@ -1287,7 +1294,10 @@
{ INDEX_op_brcond_i64, { "r", "re" } },
+ { INDEX_op_bswap16_i32, { "r", "0" } },
+ { INDEX_op_bswap16_i64, { "r", "0" } },
{ INDEX_op_bswap32_i32, { "r", "0" } },
+ { INDEX_op_bswap32_i64, { "r", "0" } },
{ INDEX_op_bswap64_i64, { "r", "0" } },
{ INDEX_op_neg_i32, { "r", "0" } },
Modified: trunk/tcg/x86_64/tcg-target.h
===================================================================
--- trunk/tcg/x86_64/tcg-target.h 2009-03-13 09:35:49 UTC (rev 6837)
+++ trunk/tcg/x86_64/tcg-target.h 2009-03-13 09:35:55 UTC (rev 6838)
@@ -56,7 +56,10 @@
#define TCG_TARGET_CALL_STACK_OFFSET 0
/* optional instructions */
+#define TCG_TARGET_HAS_bswap16_i32
+#define TCG_TARGET_HAS_bswap16_i64
#define TCG_TARGET_HAS_bswap32_i32
+#define TCG_TARGET_HAS_bswap32_i64
#define TCG_TARGET_HAS_bswap64_i64
#define TCG_TARGET_HAS_neg_i32
#define TCG_TARGET_HAS_neg_i64
reply other threads:[~2009-03-13 9:35 UTC|newest]
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