UMBC CMSC 313, Computer Organization & Assembly Language, Spring 2002, Section 0101

Compiling, Assemblying & Assembling

Tuesday 03/19, 2001

Up]

Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:   

Assigned:   

Due:  Prog3

Topics Covered:

• Overview of the stages of turning a C program into executable code: Compiling (lexical analysis, parsing, code generation, code optimization), Assembling, Linking and Loading.
• Two pass assemblers (and why they need two passes).
• How the GNU linking loader, ld, handles separately compiled/assembled object files.
• Reviewed last semester's midterm exam.

Programs shown:

• Demonstrating a two-pass assembler and using objdump to examine *.o and a.out files: twopass.asm, twopass.lst and twopass.txt.
• Demonstrating how separately compiled programs are linked: sep1.asm, sep1.lst, sep2.asm, sep2.lst and sep.txt.