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target-i386: Tidy movsl 

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 <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-11-02 08:32:39 -10:00
parent c8fbc47967
commit 4b1fe0671f
1 changed files with 1 additions and 5 deletions
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6
target-i386/translate.c
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@ -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