check_map_access
if (check_map_access(env, dst_reg, argno_from_reg(dst), 0, 1, false, ACCESS_HELPER)) {
err = check_map_access(env, reg, argno, off, size, false, ACCESS_DIRECT);
return check_map_access(env, reg, argno, 0, access_size,
err = check_map_access(env, reg, argno, 0,