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We created this website with the sole purpose of users being able to search quickly and efficiently in the field of cryptocurrency so they will have access to the latest and most accurate information and thereby assisting the crypto-community at large.
pragma solidity ^0.4.0;
contract esempio
{
function loop() public
{
assembly
{
// push address stack+1 costo Wverylow=3gas
loop:
// push a stack+1 costo Wverylow=3gas
// push b stack +1 costo Wverylow=3gas
// mul a b stack -2 (pop operandi) +1 (push risultato) costo Wlow=5gas
// il compilatore ottimizza questa mul ? si possono disabilitare le ottimizzazioni?
// se si ottimizza si puo' bypassare con mul(add(div(.....)))?? da verificare in codice macchina
mul(12312, 8374832)
//Il valore letto dallo stack viene "buttato via" con la pop, tanto non ci interessa,
// se la mul senza assegnazione non fa la pop, la faccio io a mano, da verificare in codice macchina.
// qui sono a stack+1 serve una pop per tornare a zero
pop stack -1 costo wbase=2gas
// jmp address stack -1 costo Wmid=8gas
jump(loop)
}
}
}