user: What would the C source look like for the assembly code provided here?

```asm
<recip>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x518,%rsp
  mov    %rdi,%r13
  mov    %rsi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x508(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r15
  mov    %r15,%rdi
  call   <square@plt>
  lea    0x480(%rsp),%rbp
  mov    %r15,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  lea    0x400(%rsp),%rbx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x80(%rsp),%r14
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %r14,%rdi
  call   <mult@plt>
  lea    0x100(%rsp),%r12
  mov    %r15,%rdx
  mov    %r14,%rsi
  mov    %r12,%rdi
  call   <mult@plt>
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x180(%rsp),%r12
  mov    %r14,%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <mult@plt>
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x200(%rsp),%r14
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %r14,%rdi
  call   <mult@plt>
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    $0x4,%ebx
  mov    %rbp,%r12
L56:
  lea    0x400(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L56
  lea    0x200(%rsp),%rdx
  lea    0x480(%rsp),%rbx
  lea    0x280(%rsp),%r12
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <mult@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    $0x9,%ebx
  lea    0x480(%rsp),%r12
L53:
  lea    0x400(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L53
  lea    0x280(%rsp),%rdx
  lea    0x480(%rsp),%rbp
  lea    0x400(%rsp),%rbx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <mult@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    $0x4,%ebx
  lea    0x400(%rsp),%r12
L34:
  lea    0x480(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L34
  lea    0x200(%rsp),%rdx
  lea    0x400(%rsp),%rbx
  lea    0x300(%rsp),%rbp
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <mult@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x480(%rsp),%rdi
  mov    %rbx,%rsi
  call   <square@plt>
  mov    $0x18,%ebx
  lea    0x480(%rsp),%r12
L48:
  lea    0x400(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L48
  lea    0x300(%rsp),%rdx
  lea    0x480(%rsp),%rbx
  lea    0x380(%rsp),%rbp
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <mult@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x400(%rsp),%rdi
  mov    %rbx,%rsi
  call   <square@plt>
  mov    $0x31,%ebx
  lea    0x400(%rsp),%r12
L41:
  lea    0x480(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L41
  lea    0x380(%rsp),%rdx
  lea    0x400(%rsp),%rbp
  lea    0x480(%rsp),%rbx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <mult@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    $0x18,%ebx
  lea    0x480(%rsp),%r12
L8:
  lea    0x400(%rsp),%rbp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <square@plt>
  sub    $0x1,%ebx
  jne    L8
  lea    0x300(%rsp),%rdx
  lea    0x480(%rsp),%rbx
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <mult@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <square@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <square@plt>
  lea    0x100(%rsp),%rdx
  mov    %rbx,%rsi
  mov    %r13,%rdi
  call   <mult@plt>
  mov    0x508(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L42
  add    $0x518,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L42:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void recip(unsigned int out[32], const unsigned int z[32]) {
  unsigned int z2[32];
  unsigned int z9[32];
  unsigned int z11[32];
  unsigned int z2_5_0[32];
  unsigned int z2_10_0[32];
  unsigned int z2_20_0[32];
  unsigned int z2_50_0[32];
  unsigned int z2_100_0[32];
  unsigned int t0[32];
  unsigned int t1[32];
  int i;
  square(z2, z);
  square(t1, z2);
  square(t0, t1);
  mult(z9, t0, z);
  mult(z11, z9, z2);
  square(t0, z11);
  mult(z2_5_0, t0, z9);
  square(t0, z2_5_0);
  square(t1, t0);
  square(t0, t1);
  square(t1, t0);
  square(t0, t1);
  mult(z2_10_0, t0, z2_5_0);
  square(t0, z2_10_0);
  square(t1, t0);
  for (i = 2; i < 10; i += 2) {
    square(t0, t1);
    square(t1, t0);
  }
  mult(z2_20_0, t1, z2_10_0);
  square(t0, z2_20_0);
  square(t1, t0);
  for (i = 2; i < 20; i += 2) {
    square(t0, t1);
    square(t1, t0);
  }
  mult(t0, t1, z2_20_0);
  square(t1, t0);
  square(t0, t1);
  for (i = 2; i < 10; i += 2) {
    square(t1, t0);
    square(t0, t1);
  }
  mult(z2_50_0, t0, z2_10_0);
  square(t0, z2_50_0);
  square(t1, t0);
  for (i = 2; i < 50; i += 2) {
    square(t0, t1);
    square(t1, t0);
  }
  mult(z2_100_0, t1, z2_50_0);
  square(t1, z2_100_0);
  square(t0, t1);
  for (i = 2; i < 100; i += 2) {
    square(t1, t0);
    square(t0, t1);
  }
  mult(t1, t0, z2_100_0);
  square(t0, t1);
  square(t1, t0);
  for (i = 2; i < 50; i += 2) {
    square(t0, t1);
    square(t1, t0);
  }
  mult(t0, t1, z2_50_0);
  square(t1, t0);
  square(t0, t1);
  square(t1, t0);
  square(t0, t1);
  square(t1, t0);
  mult(out, t1, z11);
}
```