# function start # preserve some registers # create stack space to call get_frame_length Lfunc_begin0: .cfi_startproc .cfi_personality 155, L___objc_personality_v0$non_lazy_ptr .cfi_lsda 16, Lexception0 pushl %ebp .cfi_def_cfa_offset 8 .cfi_offset %ebp, -8 movl %esp, %ebp .cfi_def_cfa_register %ebp pushl %esi # %ebp-4 pushl %edi # %ebp-8 pushl %ebx # %ebp-12 # we need 64 bytes to store xmm0-3, and those 64 bytes need to be 16-byte aligned. # we need 4 bytes to store the result for get_frame_length, which we store in %ebp-16 # then 4 more bytes for stack space for the call to get_frame_length (which takes 2 arguments) subl $108, %esp # to store xmm0-3 movaps %xmm0, -40(%ebp) movaps %xmm1, -56(%ebp) movaps %xmm2, -72(%ebp) movaps %xmm3, -88(%ebp)