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

i386 Assembly Language III

Thursday 02/14, 2001

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Assigned Reading in Murdocca & Heuring:   

Assigned Reading in Neveln:   

Assigned:   

Due:   

Topics Covered:

• Continued with demonstration of using the gdb debugger (cf toupper.txt).
• Overview of Intel i386 instruction set:
  • Basic instructions: ADD, SUB, INC, DEC, MOV, NOP
  • Branching instructions: JMP, CMP, conditional jumps, (including short and near jumps).

Programs shown:

• Program that converts user input to uppercase: toupper.asm and toupper.txt.
• Short and near jumps demonstrated: jmp.asm and jmp.lst.