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

Machine Language

Thursday 02/21, 2001

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Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:  5.1-5.7

Assigned:   

Due:   

Topics Covered:

• An example of some complex instuctions in the Intel i386 instruction set: using LODSB, STOSB, CLD and LOOP instructions in the main loop of toupper2.asm (which converts user input to upper case).
• RISC versus CISC.
• Hand assembly of some instructions to produce machine code.

Programs shown:

• Instructions used in hand assembly: add2.asm and add2.lst.