void do_sub(t_nb *res, t_nb *n1, t_nb *n2, t_base *s_base)
{
int ps1;
int ps2;
int pos;
pos = n1->len + 2;
ps1 = n1->len;
ps2 = n2->len;
while (--ps1 >= 0 && --ps2 >= 0)
{
--pos;
res->nb[pos + 1] += get_base_idx(*(n1->nb + ps1), s_base->base)
- get_base_idx(*(n2->nb + ps2), s_base->base);
handle_ret(res, pos, s_base);
res->nb[pos] += res->nb[pos + 1] / s_base->base_len;
res->nb[pos + 1] %= s_base->base_len;
}
while (ps1 >= 0 && --pos >= 0)
{
res->nb[pos + 1] += get_base_idx(*(n1->nb + ps1), s_base->base);
handle_ret(res, pos, s_base);
res->nb[pos] += res->nb[pos + 1] / s_base->base_len;
res->nb[pos + 1] %= s_base->base_len;
--ps1;
}
}
bool
test_ret()
{
op->op = CALL;
assert(cpu->ip - cpu->mem == 0); // starts at 0
handle_call(cpu, op, 20); // jump to 20
assert(*(uint64_t *)(cpu->rp - 8) == 1); // rp is next after origin
op->op = RET;
handle_ret(cpu, op);
assert(cpu->ip - cpu->mem == 1); // returned to rp
return true;
}
