UMBC CMSC 313, Computer Organization & Assembly Language, Fall 2004, Section 0101

Subroutines

Thursday 10/07, 2004

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Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:  7.1-7.4

Assigned:   

Due:   

Slides (in PDF): Slides11.pdf

Topics Covered:

• Separate compilation and linking.
• The stack, PUSH and POP instructions.
• Subroutines, CALL and RET instructions.
• Examples of a print subroutine and a recursive subroutine (see below).

Programs shown:

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