How to compile arithmetic expressions to x86?

hi prog, say I want to take as given some variables on the stack x,y,z,w and compile expressions (x+y)*(z+w) to x86 asm.

first off the instructions take registers or pointers and well x86 is weird and has instructions like this:

add x, y ;x OR y must be a register, result in x
mul x ;multiplies eax with x, result is put into eax

so this would work:

mov eax, stack0
add eax, stack1
mov ebx, stack2
add ebx, stack3
mul ebx

but how would you make an algorithm to do this in general?

Ullman claims in his personal page at Stanford to be against the Iranian government,[5] but it's also alleged that he has demonstrated anti-Iranian sentiments. In one case, he responded to an email from an Iranian student who had inquired about admission at Stanford with an off-topic political rant and went on to say that he would not help Iranian students even if he could:

And even if I were in a position to help, I will not help Iranian students until Iran recognizes and respects Israel as the land of the Jewish people. I know that you may not hold the same insane position as the mullahs that run your country, but it is a matter of principle. If Iranians want the benefits of Stanford and other institutions in the US, they have to respect the values we hold in the US, including freedom of religion and respect for human rights.

Following that the National Iranian American Council issued a formal complaint to Stanford University,[6] to which Stanford spokesperson, Lisa Lapin responded that Ullman was expressing his own personal views and not the views of the University and that "he has no involvement in admission, and Stanford doesn’t discriminate in their admission process"[7][8][9][10]