Step 1: Requirements of the Instruction Set 口 Memory(MEM) Instructions data (will use one for each: really caches) 口 Registers(R:32X32) Read rs Read rt Write rt orr 口PC a Extender (sign/zero extend) a Add/Sub/ORunit for operation on register(s)or extended immediate a Add 4(+ maybe extended immediate)to PC a Compare if registers equal? 日209 Chapter4A.9 CSE SJTU, 2017EI209 Chapter 4A.9 CSE, SJTU, 2017 Step 1: Requirements of the Instruction Set ❑ Memory (MEM) Instructions & data (will use one for each: really caches) ❑ Registers (R: 32 x 32) Read rs Read rt Write rt or rd ❑ PC ❑ Extender (sign/zero extend) ❑ Add/Sub/OR unit for operation on register(s) or extended immediate ❑ Add 4 (+ maybe extended immediate) to PC ❑ Compare if registers equal?