Translate using if (...) goto, and goto for cmpl, conditional jumps and unconditional jumps.

Note: Introduce some names for the parameter(s) and local variables to make the code closer to C and easier to follow.

For example,

• Use variable name ret for %eax - which will contain the return value.

• Use variable name n for the parameter - [first parameter is always at 8(%ebp)]

f:                                    
        pushl   %ebp                   ret is %eax
        movl    %esp, %ebp             n is 8(%ebp)
        cmpl    $0, 8(%ebp)          
        jge     .L2                    if (n >= 0) goto L2  
        movl    8(%ebp), %eax          ret = n                 
        addl    $1, %eax               ret++                   
        jmp     .L3                    goto L3                 
.L2:                               L2:                         
        cmpl    $0, 8(%ebp)                                    
        jle     .L4                    if (n <= 0) goto L4  
        movl    8(%ebp), %eax          ret = n                 
        subl    $1, %eax               ret--                   
        jmp     .L3                    goto L3                 
.L4:                               L4:                         
        movl    $0, %eax               ret = 0                 
.L3:                               L3:                         
        popl    %ebp                                                           
        ret                            return ret              

Function call	Returned value
f(5)
f(-5)
f(0)