if (is_right) {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask - 1);
tcg_gen_shri_tl(cpu_cc_dst, cpu_T[0], mask);
+ tcg_gen_andi_tl(cpu_cc_dst, cpu_cc_dst, 1);
} else {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask);
tcg_gen_andi_tl(cpu_cc_dst, cpu_T[0], 1);