user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  cmp    $0x1,%edi
  jg     L79
  mov    $0x328,%edi
  mov    $0x64,%r14d
  mov    $0x64,%r12d
  xor    %r15d,%r15d
  call   <malloc@plt>
  mov    $0x328,%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    $0x328,%edx
  xor    %esi,%esi
  mov    %r13,%rdi
  mov    %rax,%rbp
  call   <memset@plt>
  movsd  D44(%rip),%xmm5
  mov    $0x65,%ecx
L41:
  mov    %ecx,%edx
  movapd %xmm5,%xmm3
  mov    %rbp,%rax
  movdqa D28(%rip),%xmm2
  shr    $0x2,%edx
  movdqa D14(%rip),%xmm4
  unpcklpd %xmm3,%xmm3
  sub    $0x1,%edx
  shl    $0x5,%rdx
  lea    0x20(%rbp,%rdx,1),%rdx
  nopl   0x0(%rax)
L17:
  movdqa %xmm2,%xmm0
  add    $0x20,%rax
  paddd  %xmm4,%xmm2
  cvtdq2pd %xmm0,%xmm1
  mulpd  %xmm3,%xmm1
  pshufd $0xee,%xmm0,%xmm0
  cvtdq2pd %xmm0,%xmm0
  mulpd  %xmm3,%xmm0
  movups %xmm1,-0x20(%rax)
  movups %xmm0,-0x10(%rax)
  cmp    %rdx,%rax
  jne    L17
  mov    %ecx,%eax
  and    $0xfffffffc,%eax
  and    $0x3,%ecx
  je     L116
L33:
  pxor   %xmm0,%xmm0
  movslq %eax,%rdx
  cvtsi2sd %eax,%xmm0
  lea    0x0(,%rdx,8),%rcx
  mulsd  %xmm5,%xmm0
  movsd  %xmm0,0x0(%rbp,%rdx,8)
  lea    0x1(%rax),%edx
  cmp    %r12d,%edx
  jg     L116
  pxor   %xmm0,%xmm0
  add    $0x2,%eax
  cvtsi2sd %edx,%xmm0
  mulsd  %xmm5,%xmm0
  movsd  %xmm0,0x8(%rbp,%rcx,1)
  cmp    %r12d,%eax
  jg     L116
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  mulsd  %xmm5,%xmm0
  movsd  %xmm0,0x10(%rbp,%rcx,1)
L116:
  mov    %r13,%rdx
  mov    %r12d,%esi
  mov    %r14d,%edi
  mov    %rbp,%rcx
  call   <jacobi@plt>
  mov    %r14d,%edx
  mov    %r12d,%esi
  lea    D6(%rip),%rdi
  call   <printf@plt>
  test   %r15,%r15
  je     L55
  mov    %r15,%rdx
  mov    %r13,%rsi
  mov    %r12d,%edi
  call   <write_solution@plt>
L55:
  mov    %rbp,%rdi
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L79:
  mov    %edi,%ebp
  mov    0x8(%rsi),%rdi
  mov    %rsi,%r13
  call   <atoi@plt>
  mov    %eax,%r12d
  cmp    $0x2,%ebp
  je     L67
  mov    0x10(%r13),%rdi
  call   <atoi@plt>
  mov    %eax,%r14d
  cmp    $0x3,%ebp
  je     L101
  mov    0x18(%r13),%r15
L13:
  lea    0x1(%r12),%ebx
  lea    0x0(,%rbx,8),%edx
  mov    %edx,%edi
  mov    %edx,0xc(%rsp)
  call   <malloc@plt>
  mov    0xc(%rsp),%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    0xc(%rsp),%edx
  xor    %esi,%esi
  mov    %r13,%rdi
  mov    %rax,%rbp
  call   <memset@plt>
  test   %r12d,%r12d
  js     L116
  pxor   %xmm0,%xmm0
  movsd  D16(%rip),%xmm5
  mov    %ebx,%ecx
  cvtsi2sd %r12d,%xmm0
  divsd  %xmm0,%xmm5
  cmp    $0x2,%r12d
  jg     L41
  xor    %eax,%eax
  jmp    L33
L67:
  mov    $0x64,%r14d
  xor    %r15d,%r15d
  jmp    L13
L101:
  xor    %r15d,%r15d
  jmp    L13
```

tool_calls: name: parse_data
arguments: data_tag: D44
type: byte[8]
name: parse_data
arguments: data_tag: D28
type: byte[16]
name: parse_data
arguments: data_tag: D14
type: byte[16]
name: parse_data
arguments: data_tag: D6
type: string
name: parse_data
arguments: data_tag: D16
type: f64

tool: {"D44": [0x7b,0x14,0xae,0x47,0xe1,0x7a,0x84,0x3f]}

tool: {"D28": [0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x03,0x00,0x00,0x00]}

tool: {"D14": [0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00]}

tool: D6: n: %d
nsteps: %d


tool: D16: 1

assistant: ```c
int main(int argc, char **argv) {
  int i;
  int n, nsteps;
  double *u;
  double *f;
  double h;
  char *fname;
  n = (argc > 1) ? atoi(argv[1]) : 100;
  nsteps = (argc > 2) ? atoi(argv[2]) : 100;
  fname = (argc > 3) ? argv[3] : NULL;
  h = 1.0 / n;
  u = (double *)malloc((n + 1) * sizeof(double));
  f = (double *)malloc((n + 1) * sizeof(double));
  memset(u, 0, (n + 1) * sizeof(double));
  for (i = 0; i <= n; ++i)
    f[i] = i * h;
  jacobi(nsteps, n, u, f);
  printf("n: %d\n"
         "nsteps: %d\n",
         n, nsteps);
  if (fname)
    write_solution(n, u, fname);
  free(f);
  free(u);
  return 0;
}
```