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

```asm
<exponential>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,0x48(%rsp)
  mov    0xa0(%rsp),%r12
  mov    %edx,0x54(%rsp)
  mov    %ecx,0x50(%rsp)
  mov    %r8,0x58(%rsp)
  mov    %r9d,0x3c(%rsp)
  test   %edx,%edx
  jle    L63
  mov    %esi,%r13d
  mov    %edx,%edi
  mov    0xa8(%rsp),%rsi
  lea    -0x1(%r9),%eax
  imul   %ecx,%edi
  movl   $0x0,0x44(%rsp)
  movss  D2(%rip),%xmm3
  lea    0x4(%rsi,%rax,4),%rax
  movl   $0x0,0x40(%rsp)
  mov    %rax,0x10(%rsp)
  movslq %edi,%rdi
  lea    0x0(,%rdi,4),%r15
L19:
  mov    0x50(%rsp),%edi
  test   %edi,%edi
  jle    L103
  movslq 0x44(%rsp),%rax
  sub    $0x1,%edi
  mov    0x48(%rsp),%rsi
  movq   $0x0,0x20(%rsp)
  mov    %rdi,0x30(%rsp)
  pxor   %xmm2,%xmm2
  shl    $0x2,%rax
  add    %rax,%rsi
  add    0x58(%rsp),%rax
  mov    %rax,0x28(%rsp)
  lea    -0x1(%r13),%eax
  mov    %eax,0x38(%rsp)
  mov    0x3c(%rsp),%eax
  mov    %rsi,0x18(%rsp)
  test   %eax,%eax
  jle    L1
  nop
L15:
  mov    0xa8(%rsp),%rbx
  mov    %r13d,%eax
  xor    %ebp,%ebp
  movaps %xmm2,%xmm4
  lea    0x4(%r12),%r14
  mov    %rbx,%r13
  mov    %eax,%ebx
  nopw   0x0(%rax,%rax,1)
L26:
  movss  D2(%rip),%xmm0
  test   %ebx,%ebx
  jle    L6
  mov    0x38(%rsp),%edx
  movslq %ebp,%rcx
  movaps %xmm2,%xmm1
  lea    (%r12,%rcx,4),%rax
  add    %rcx,%rdx
  lea    (%r14,%rdx,4),%rcx
  mov    0x18(%rsp),%rdx
  cs nopw 0x0(%rax,%rax,1)
L84:
  movss  (%rdx),%xmm0
  subss  (%rax),%xmm0
  comiss %xmm0,%xmm2
  jbe    L87
  xorps  %xmm3,%xmm0
L87:
  add    $0x4,%rax
  addss  %xmm0,%xmm1
  add    %r15,%rdx
  cmp    %rax,%rcx
  jne    L84
  xorps  %xmm3,%xmm1
  movaps %xmm1,%xmm0
L6:
  movss  0x0(%r13),%xmm5
  movss  %xmm4,0xc(%rsp)
  add    $0x4,%r13
  add    %ebx,%ebp
  movss  %xmm5,0x8(%rsp)
  call   <exp@plt>
  mulss  0x8(%rsp),%xmm0
  movss  0xc(%rsp),%xmm4
  pxor   %xmm2,%xmm2
  cmp    0x10(%rsp),%r13
  movss  D2(%rip),%xmm3
  addss  %xmm0,%xmm4
  jne    L26
  mov    %ebx,%r13d
L98:
  mov    0x28(%rsp),%rax
  mov    0x20(%rsp),%rdi
  addq   $0x4,0x18(%rsp)
  movss  %xmm4,(%rax,%rdi,4)
  lea    0x1(%rdi),%rax
  cmp    0x30(%rsp),%rdi
  je     L103
  mov    %rax,0x20(%rsp)
  mov    0x3c(%rsp),%eax
  test   %eax,%eax
  jg     L15
L1:
  movaps %xmm2,%xmm4
  jmp    L98
L103:
  addl   $0x1,0x40(%rsp)
  mov    0x50(%rsp),%esi
  mov    0x40(%rsp),%eax
  add    %esi,0x44(%rsp)
  cmp    %eax,0x54(%rsp)
  jne    L19
L63:
  add    $0x68,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D2
datatype: byte[4]

tool: {"D2": [0x00,0x00,0x00,0x80]}

assistant: ```c
int exponential(float *input, int ichannels, int iheight, int iwidth, float *output, int numProto, float *code, float *weight, float *std) {
  int i, k, x, y;
  float dist, yi_hat;
  for (y = 0; y < iheight; y++) {
    for (x = 0; x < iwidth; x++) {
      yi_hat = 0;
      for (i = 0; i < numProto; i++) {
        dist = 0;
        for (k = 0; k < ichannels; k++)
          dist += (input[(y + k * iheight) * iwidth + x] - code[k + i * ichannels]) < 0 ? -(input[(y + k * iheight) * iwidth + x] - code[k + i * ichannels]) : (input[(y + k * iheight) * iwidth + x] - code[k + i * ichannels]);
        yi_hat += weight[i] * exp(-dist);
      }
      output[y * iwidth + x] = yi_hat;
    }
  }
  return 0;
}
```