tcg/x86: add bswap16_i32 ops
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6837 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index d8b5563..e0fd434 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -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" } },
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 60450a4..301a5bf 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -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
