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

Subroutines

Thursday 10/02, 2001

Up]

Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:  7.1-7.4

Assigned:   

Due:   

Topics Covered:

• Slides are available in PDF: Slides11.pdf
• Stack instructions PUSH and POP.
• Subroutine instructions CALL and RET.
• Examples of assembly language subroutines.
• How the gcc compiler on a Linux/Pentium platform handles function calls. Extensive notes are available.

Programs shown:

• A simple print subroutine in assembly language: subroutine.asm, subroutine.txt.
• A simple recursive subroutine in assembly language: recurse.asm, recurse.txt.