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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-13 09:35:49 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-13 09:35:49 +0000
commit5d40cd63027cbf321dd756d6acf244cf5eeda5c2 (patch)
tree1b444d01c9749c26aec3135c4b7bc8b9fa8f6d13 /tcg/i386
parent8777643e480f59c407d994bb4ee25cb39b96e36e (diff)
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
Diffstat (limited to 'tcg/i386')
-rw-r--r--tcg/i386/tcg-target.c6
-rw-r--r--tcg/i386/tcg-target.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index d8b5563bd3..e0fd434620 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -1034,6 +1034,11 @@ static inline void tcg_out_op(TCGContext *s, int opc,
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 @@ static const TCGTargetOpDef x86_op_defs[] = {
{ 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 60450a4462..301a5bf142 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -45,6 +45,7 @@ enum {
#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