非计算机专业，手贱选了一门“编译原理”，天天上课懵逼。。。
实在弄不懂，求大神指教，以下是题目。。
Write a PL/0' assembly language program which evaluates the following expression and outputs the value of the expression.
7 + 2 x (5 -1)
https://msdn.microsoft.com/en-us/library/hh147277(v=vs.88).aspx