https://github.com/akkartik/mu/blob/master/308allocate-array.subx
 1 # 2-arg version of allocate-array.
 2 
 3 == code
 4 
 5 allocate-array2:  # ad: (addr allocation-descriptor), array-len: int, elem-size: int, out: (addr handle array _)
 6     # . prologue
 7     55/push-ebp
 8     89/<- %ebp 4/r32/esp
 9     # . save registers
10     50/push-eax
11     52/push-edx
12     #
13     8b/-> *(ebp+0xc) 0/r32/eax
14     f7 4/subop/multiply-into-edx-eax *(ebp+0x10)
15     # TODO: check edx for overflow
16     (allocate-array *(ebp+8) %eax *(ebp+0x14))
17 $allocate-array2:end:
18     # . restore registers
19     5a/pop-to-edx
20     58/pop-to-eax
21     # . epilogue
22     89/<- %esp 5/r32/ebp
23     5d/pop-to-ebp
24     c3/return