UMBC CMSC 313, Computer Organization & Assembly Language, Fall 2003, Section 0101

The Stack & C Functions

Tuesday 10/07, 2001

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Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:   

Assigned:  proj4

Due:  proj3

Topics Covered:

• Slides are available in PDF: Slides12.pdf
• Extensive coverage of how C functions pass parameters on the stack. See notes for full coverage.
• Discussed Project 4.

Programs shown:

• A simple C function converted to assembly language using gcc -S: cfunc.c, cfunc.s (AT&T style assembly), cfunc.asm (Intel style assembly), cfunc.txt.
• An assembly language program that calls printf to write to stdout (with C style main function): printf1.asm, printf1.txt.
• An assembly language program that calls printf to write to stdout (with assembly style _start entry point): printf2.asm, printf2.txt.
• An example of a C program that calls a function implemented in assembly: arraytest.c, arrayinc.asm, arraytest.txt.