This lecture covers Program Execution (a closer look at DRAM, the CPU, and the fetch-execute cycle) and introduces assembly language. The SPIM simulator is used to demonstrate writing and running programs for the MIPS family of processors.

• Review of the Fetch Execute cycle
• A model for DRAM
• Representing program and data in DRAM
• A model for the CPU
• Assembly Language Programming
• MIPS programming

• Memory Blocks
• All types are represented as numbers
• CPU = Registers + Datapaths + Control + BIU
• Programming in assembly language

Program Execution

• Complete the Drep homework this week.
• Read Chapter 2 of our textbook up to, and including, Section 2.8 but skip Section 2.4. (In the old edition of the text, read Ch 3 up to and including, Sec 3.7 but skip Sec 3.4.)
• Download SPIM to your home machine and/or use the one in Prism.
• Complete the programs developed in class (found in the Resource Directory in What's New).
• Start reading and performing the tasks of Lab-A. Optional