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[Qemu-devel] [PULL 16/49] target-i386: Tidy movsl


From: Richard Henderson
Subject: [Qemu-devel] [PULL 16/49] target-i386: Tidy movsl
Date: Tue, 7 Jan 2014 13:00:06 -0800

Always perform a sign-extending load.  In the extremely unlikely
case that we've used an 0x66 prefix, the extension to 64-bits is
unnecessary but not wrong; the store will still examine only 16 bits.

Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 target-i386/translate.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/target-i386/translate.c b/target-i386/translate.c
index f3baa4d..0a414c4 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -7747,11 +7747,7 @@ static target_ulong disas_insn(CPUX86State *env, 
DisasContext *s,
                 gen_op_mov_reg_T0(d_ot, reg);
             } else {
                 gen_lea_modrm(env, s, modrm, &reg_addr, &offset_addr);
-                if (d_ot == MO_64) {
-                    gen_op_ld_v(s, MO_32 | MO_SIGN, cpu_T[0], cpu_A0);
-                } else {
-                    gen_op_ld_v(s, MO_32, cpu_T[0], cpu_A0);
-                }
+                gen_op_ld_v(s, MO_32 | MO_SIGN, cpu_T[0], cpu_A0);
                 gen_op_mov_reg_T0(d_ot, reg);
             }
         } else
-- 
1.8.4.2




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