case typeCon:
        printf("\tpushq\t$%d\n", p->con.value);
        break;
    case typeId:
        printf("\tmovq\t$variables, %%rax\n");
        printf("\tmovq\t$%d, %%rcx\n", p->id.i);
        printf("\tmovq\t(%%rax, %%rcx, 8), %%rbx\n");
        printf("\tpushq\t%%rbx\n");
        break;


printf("\tpopq\t%%rax\n");
                printf("\tpopq\t%%rbx\n");
                printf("\taddq\t%%rax, %%rbx\n");
                printf("\tpushq\t%%rbx\n");