# prog10
    irmovl $1,%eax
    xorl %esp,%esp        # Set stack pointer to 0 and CC to 100
    pushl %eax            # Attempt to write to 0xfffffffc
    addl  %eax,%eax       # (Should not be executed) Would set CC to 000
    irmovl $2, %eax       # Not executed
    irmovl $3, %eax       # Not executed
