a) Write an assembly code fragment that implements the following high level statement using the architectures given below. You should preserve the order of instructions (precedence and associativity as in C++/Java) when you solve this question. 15 marks z_m_ (n + o) _ (p + q) + r, where all variables are memory locations . 1. A stack architecture, 2. An accumulator architecture (Intel 8008), 3. A 3-address architecture (DEC VAX, MIPS): a) Write an assembly code fragment that implements the following high level statement using the architectures given below. You should preserve the order of instructions (precedence and associativity as in C++/Java) when you solve this question. 15 marks z_m_ (n + o) _ (p + q) + r, where all variables are memory locations . 1. A stack architecture, 2. An accumulator architecture (Intel 8008), 3. A 3-address architecture (DEC VAX, MIPS)