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

```asm
<calculate>:
  endbr64
  mov    %edi,%ecx
  cmp    $0x2b,%dl
  je     L70
  cmp    $0x2d,%dl
  je     L12
  cmp    $0x2a,%dl
  je     L116
L201:
  xor    %eax,%eax
  ret
L70:
  test   %edi,%edi
  jle    L201
  lea    -0x1(%rdi),%eax
  cmp    $0x2,%eax
  jbe    L69
  mov    %edi,%edx
  mov    %rsi,%rax
  pxor   %xmm0,%xmm0
  shr    $0x2,%edx
  sub    $0x1,%edx
  shl    $0x4,%rdx
  lea    0x10(%rsi,%rdx,1),%rdx
  nopl   0x0(%rax,%rax,1)
L33:
  movdqu (%rax),%xmm3
  add    $0x10,%rax
  paddd  %xmm3,%xmm0
  cmp    %rdx,%rax
  jne    L33
  movdqa %xmm0,%xmm1
  mov    %ecx,%edx
  psrldq $0x8,%xmm1
  and    $0xfffffffc,%edx
  paddd  %xmm1,%xmm0
  movdqa %xmm0,%xmm1
  psrldq $0x4,%xmm1
  paddd  %xmm1,%xmm0
  movd   %xmm0,%eax
  test   $0x3,%cl
  je     L195
L46:
  movslq %edx,%rdi
  lea    0x0(,%rdi,4),%r8
  add    (%rsi,%rdi,4),%eax
  lea    0x1(%rdx),%edi
  cmp    %edi,%ecx
  jle    L10
  add    $0x2,%edx
  add    0x4(%rsi,%r8,1),%eax
  cmp    %edx,%ecx
  jle    L10
  add    0x8(%rsi,%r8,1),%eax
  ret
  nopl   0x0(%rax)
L116:
  test   %edi,%edi
  jle    L110
  lea    -0x1(%rdi),%eax
  cmp    $0x1a,%eax
  jbe    L87
  mov    %edi,%edx
  movdqa D2(%rip),%xmm1
  mov    %rsi,%rax
  shr    $0x2,%edx
  sub    $0x1,%edx
  shl    $0x4,%rdx
  lea    0x10(%rsi,%rdx,1),%rdx
L52:
  movdqu (%rax),%xmm2
  movdqu (%rax),%xmm0
  add    $0x10,%rax
  pmuludq %xmm1,%xmm2
  psrlq  $0x20,%xmm0
  psrlq  $0x20,%xmm1
  pmuludq %xmm1,%xmm0
  pshufd $0x8,%xmm2,%xmm1
  pshufd $0x8,%xmm0,%xmm0
  punpckldq %xmm0,%xmm1
  cmp    %rax,%rdx
  jne    L52
  movdqa %xmm1,%xmm0
  mov    %ecx,%edx
  psrldq $0x8,%xmm0
  and    $0xfffffffc,%edx
  movdqa %xmm0,%xmm2
  psrlq  $0x20,%xmm0
  pmuludq %xmm1,%xmm2
  psrlq  $0x20,%xmm1
  pmuludq %xmm1,%xmm0
  pshufd $0x8,%xmm2,%xmm1
  pshufd $0x8,%xmm0,%xmm0
  punpckldq %xmm0,%xmm1
  movdqa %xmm1,%xmm0
  psrldq $0x4,%xmm0
  pmuludq %xmm1,%xmm0
  movd   %xmm0,%eax
  test   $0x3,%cl
  je     L115
L31:
  movslq %edx,%rdx
L190:
  imul   (%rsi,%rdx,4),%eax
  add    $0x1,%rdx
  cmp    %edx,%ecx
  jg     L190
L10:
  ret
  nopl   (%rax)
L12:
  mov    (%rsi),%eax
  cmp    $0x1,%edi
  jle    L10
  lea    -0x2(%rdi),%edx
  lea    -0x1(%rdi),%r8d
  cmp    $0x2,%edx
  jbe    L121
  mov    %r8d,%edi
  lea    0x4(%rsi),%rdx
  pxor   %xmm0,%xmm0
  shr    $0x2,%edi
  sub    $0x1,%edi
  shl    $0x4,%rdi
  lea    0x14(%rsi,%rdi,1),%rdi
  nopl   0x0(%rax)
L137:
  movdqu (%rdx),%xmm4
  add    $0x10,%rdx
  psubd  %xmm4,%xmm0
  cmp    %rdi,%rdx
  jne    L137
  movdqa %xmm0,%xmm1
  mov    %r8d,%edi
  psrldq $0x8,%xmm1
  and    $0xfffffffc,%edi
  paddd  %xmm1,%xmm0
  movdqa %xmm0,%xmm1
  psrldq $0x4,%xmm1
  paddd  %xmm1,%xmm0
  movd   %xmm0,%edx
  add    %edx,%eax
  lea    0x1(%rdi),%edx
  cmp    %edi,%r8d
  je     L21
L125:
  movslq %edx,%rdi
  lea    0x0(,%rdi,4),%r8
  sub    (%rsi,%rdi,4),%eax
  lea    0x1(%rdx),%edi
  cmp    %edi,%ecx
  jle    L10
  add    $0x2,%edx
  sub    0x4(%rsi,%r8,1),%eax
  cmp    %edx,%ecx
  jle    L10
  sub    0x8(%rsi,%r8,1),%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L195:
  ret
  nopl   0x0(%rax)
L21:
  ret
  nopl   0x0(%rax)
L115:
  ret
  nopl   0x0(%rax)
L110:
  mov    $0x1,%eax
  ret
L121:
  mov    $0x1,%edx
  jmp    L125
L69:
  xor    %eax,%eax
  xor    %edx,%edx
  jmp    L46
L87:
  mov    $0x1,%eax
  xor    %edx,%edx
  jmp    L31
```

tool_calls: name: read_data
arguments: tag: D2
type_infered: byte[16]

tool: {"D2": [0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00]}

assistant: ```c
int calculate(int operand_num, int operand[], char operator) {
  int i, result;
  switch (operator) {
  case '+':
    result = 0;
    for (i = 0; i < operand_num; i++)
      result += operand[i];
    break;
  case '-':
    result = operand[0];
    for (i = 1; i < operand_num; i++)
      result -= operand[i];
    break;
  case '*':
    result = 1;
    for (i = 0; i < operand_num; i++)
      result *= operand[i];
    break;
  default:
    return 0;
  }
  return result;
}
```