CSC231 No-no! and Be-Careful! situations

--D. Thiebaut 13:15, 10 November 2010 (UTC)

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What's wrong with the following code?

;------------------------------------------------------------------
; function that pushes several results in the stack
;------------------------------------------------------------------
compute:	
        pushad
        mov	ecx, N		;loop some number of times                                                              
        mov	eax, data1	;get some data                                                                          
        mov	ebx, data2
.for:   call	doSomething	;operate on eax and ebx                                                                 
                                ; on return, eax contains                                                               
                                ; result we're interested in                                                            
        push	eax		;save result in stack                                                                   
        loop	.for

;;; we're done                                                                                                          
        popad
        ret