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| author | Richard Henderson <rth@twiddle.net> | 2010-05-21 08:30:32 -0700 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2010-05-21 16:20:22 +0000 |
| commit | b3e66df71acb52f9798f3da039470952c4b4c7c3 (patch) | |
| tree | 6173112e5065bb361f03bf8c1274f4367286be8a /tcg/i386 | |
| parent | 0566d387378fe02e89f27d3608474e216baa72d7 (diff) | |
| download | qemu-b3e66df71acb52f9798f3da039470952c4b4c7c3.zip qemu-b3e66df71acb52f9798f3da039470952c4b4c7c3.tar.gz qemu-b3e66df71acb52f9798f3da039470952c4b4c7c3.tar.bz2 | |
tcg-i386: Tidy xchg.
Define and use OPC_XCHG_ax_r32.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index bf8e9d5..5d5e5e4 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -192,6 +192,7 @@ static inline int tcg_target_const_match(tcg_target_long val, #define OPC_SHIFT_Ib (0xc1) #define OPC_SHIFT_cl (0xd3) #define OPC_TESTL (0x85) +#define OPC_XCHG_ax_r32 (0x90) #define OPC_GRP3_Ev (0xf7) #define OPC_GRP5 (0xff) @@ -770,7 +771,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, break; case 3: if (data_reg == TCG_REG_EDX) { - tcg_out_opc(s, 0x90 + TCG_REG_EDX); /* xchg %edx, %eax */ + /* xchg %edx, %eax */ + tcg_out_opc(s, OPC_XCHG_ax_r32 + TCG_REG_EDX); tcg_out_mov(s, data_reg2, TCG_REG_EAX); } else { tcg_out_mov(s, data_reg, TCG_REG_EAX); |