0x1009169e: movl	0xfffffda4(%ebp),%ecx

0x100916a4: subl	0xfffffda0(%ebp),%ecx

0x100916aa: imull	$12,%ecx,%ecx

0x100916ad: movl	0xffffff70(%ebp),%edx

0x100916b3: movl	0x8(%edx),%eax

0x100916b6: movl	0xfffffdac(%ebp),%edx

0x100916bc: movw	%cx,0x0(%eax,%edx,2)

0x100916c0: movl	0xfffffda4(%ebp),%eax

0x100916c6: movl	%eax,0xfffffda0(%ebp)

0x100916cc: movl	0xfffffda4(%ebp),%ecx

0x100916d2: imull	$12,%ecx,%ecx

0x100916d5: movl	%ecx,0xfffffda4(%ebp)

0x100916db: movl	0x1c(%ebp),%edx   ; <- load arg_14

0x100916de: pushl	%edx             ; <- here we put on stack arg_14 (==NULL) which we pass to func 0x1008ec80

0x100916df: movl	0xfffffdac(%ebp),%eax

0x100916e5: imull	$12,%eax,%eax

0x100916e8: movl	0xffffff70(%ebp),%ecx

0x100916ee: movl	0xc(%ecx),%edx

0x100916f1: addl	%eax,%edx

0x100916f3: pushl	%edx

0x100916f4: movl	0xfffffda8(%ebp),%eax

0x100916fa: addl	0xfffffda4(%ebp),%eax

0x10091700: pushl	%eax

0x10091701: call	0x1008ec80       ; <- lets call this function with NULL arg...