Memory and M/L

This lecture covers memory segments, memory variables, memory instructions, the role of the stack, and machine language (M/L).

• The Memory Map
• Declaration of Variables in .data
• The Load/Store Family
• Spilling Data to the stack
• Stack Frames for method invocation
• Creating a machine language program
• Instruction Formats
• Techniques for handling large immediates

• Classes and objects are on the heap
• Code is in .text
• Everything else is in a stack frame on the stack
• Implementing Recursion
• Fixing the instruction size and varying the format is a good compromise between the simplicity of regularity and the inefficiency of variable-size instructions.

• The Load/Store Family
• Machine Language

• Go over the files in the Resource Directory
• Do the homework given in class (Math.min using stack frames).
• Do the homework given in class (translation of the given Recursive.java program).
• Read all the sections that we skipped in Chapter 2 (Chapter 3 if you have the old version).
• Go over the lectures, the readings, and the labs in preparation for next week's test.