MARIE汇编程序-如何乘法

Question

I want to write a simple MARIE program to evaluate the expression A x B + C x D .

Now, there's not alot of info on Marie assembly language. I am not sure if there is a multiply? If not, would I have to loop or something to get it to multiply? I know for certain operators like < , > you would subtract.

This is what I have so far:

100     load    A
101     load    B
102     add     C   // add to B? b+c?
103     mult    A

I'm just stuck.

Answer 1

Do I suppose you refer to this?

http://www.cse.yorku.ca/~jeff/notes/compiler/Marie/

You can access to a list of opcodes in the editor (File>>Edit), Help>>Help. There is no mult opcode, so you'll have to create a loop and use skipcond in order to test the condition.