user: 下面的汇编指令对应的C源代码是什么:

```asm
<KeyExpansion>:
  endbr64
  push   %r14
  mov    %rdi,%rax
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  sub    $0x50,%rsp
  movdqa D0(%rip),%xmm0
  mov    %fs:0x28,%rcx
  mov    %rcx,0x48(%rsp)
  xor    %ecx,%ecx
  mov    D32(%rip),%rcx
  movl   $0x9a,0x38(%rsp)
  movaps %xmm0,(%rsp)
  movdqa D26(%rip),%xmm0
  mov    %rcx,0x30(%rsp)
  movaps %xmm0,0x10(%rsp)
  movdqa D34(%rip),%xmm0
  movaps %xmm0,0x20(%rsp)
  cmp    $0xc0,%edx
  je     L38
  cmp    $0x100,%edx
  je     L7
  mov    $0x2c,%r13d
  mov    $0x4,%ebp
  cmp    $0x80,%edx
  je     L49
L19:
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L20
  add    $0x50,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L7:
  mov    $0x3c,%r13d
  mov    $0x8,%ebp
L49:
  movzbl 0x1(%rax),%edx
  movzbl 0x2(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl (%rax),%ecx
  or     %ecx,%edx
  movzbl 0x3(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,(%r12)
  movzbl 0x6(%rax),%edx
  movzbl 0x5(%rax),%ecx
  shl    $0x10,%edx
  shl    $0x8,%ecx
  or     %ecx,%edx
  movzbl 0x4(%rax),%ecx
  or     %ecx,%edx
  movzbl 0x7(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0x4(%r12)
  movzbl 0x9(%rax),%edx
  movzbl 0xa(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0x8(%rax),%ecx
  or     %ecx,%edx
  movzbl 0xb(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0x8(%r12)
  movzbl 0xd(%rax),%edx
  movzbl 0xe(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0xc(%rax),%ecx
  or     %ecx,%edx
  movzbl 0xf(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0xc(%r12)
  cmp    $0x4,%ebp
  je     L31
  movzbl 0x11(%rax),%edx
  movzbl 0x12(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0x10(%rax),%ecx
  or     %ecx,%edx
  movzbl 0x13(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0x10(%r12)
  movzbl 0x15(%rax),%edx
  movzbl 0x16(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0x14(%rax),%ecx
  or     %ecx,%edx
  movzbl 0x17(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0x14(%r12)
  cmp    $0x6,%ebp
  je     L31
  movzbl 0x19(%rax),%edx
  movzbl 0x1a(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0x18(%rax),%ecx
  or     %ecx,%edx
  movzbl 0x1b(%rax),%ecx
  shl    $0x18,%ecx
  or     %ecx,%edx
  mov    %edx,0x18(%r12)
  cmp    $0x8,%ebp
  jne    L31
  movzbl 0x1d(%rax),%edx
  movzbl 0x1e(%rax),%ecx
  shl    $0x8,%edx
  shl    $0x10,%ecx
  or     %ecx,%edx
  movzbl 0x1c(%rax),%ecx
  movzbl 0x1f(%rax),%eax
  or     %ecx,%edx
  shl    $0x18,%eax
  or     %edx,%eax
  mov    %eax,0x1c(%r12)
L31:
  movslq %ebp,%rbx
  mov    %rbx,%rax
  neg    %rax
  lea    (%r12,%rax,4),%r14
  jmp    L132
  nopl   0x0(%rax,%rax,1)
L113:
  cmp    $0x6,%ebp
  jle    L50
  cmp    $0x4,%edx
  je     L43
L50:
  xor    (%r14,%rbx,4),%edi
  mov    %edi,(%r12,%rbx,4)
  add    $0x1,%rbx
  cmp    %ebx,%r13d
  jle    L19
L132:
  mov    %ebx,%eax
  mov    -0x4(%r12,%rbx,4),%edi
  cltd
  idiv   %ebp
  test   %edx,%edx
  jne    L113
  ror    $0x8,%edi
  call   <SubWord@plt>
  mov    %eax,%edi
  lea    -0x1(%rbx),%eax
  cltd
  idiv   %ebp
  cltq
  xor    (%rsp,%rax,4),%edi
  jmp    L50
  nopl   0x0(%rax)
L43:
  call   <SubWord@plt>
  mov    %eax,%edi
  jmp    L50
  nopl   0x0(%rax)
L38:
  mov    $0x34,%r13d
  mov    $0x6,%ebp
  jmp    L49
L20:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D0
type_infered: byte[16]
name: extract_symbolic_data
arguments: tag: D32
type_infered: byte[8]
name: extract_symbolic_data
arguments: tag: D26
type_infered: byte[16]
name: extract_symbolic_data
arguments: tag: D34
type_infered: byte[16]

tool: {"D0": [0x01,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x08,0x00,0x00,0x00]}

tool: {"D32": [0xab,0x00,0x00,0x00,0x4d,0x00,0x00,0x00]}

tool: {"D26": [0x10,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x80,0x00,0x00,0x00]}

tool: {"D34": [0x1b,0x00,0x00,0x00,0x36,0x00,0x00,0x00,0x6c,0x00,0x00,0x00,0xd8,0x00,0x00,0x00]}

assistant: ```c
void KeyExpansion(unsigned char key[], unsigned int w[], int keysize) {
  int Nb = 4, Nr, Nk, idx;
  unsigned int temp, Rcon[] = {0x00000001, 0x00000002, 0x00000004, 0x00000008, 0x00000010, 0x00000020, 0x00000040, 0x00000080, 0x0000001b, 0x00000036, 0x0000006c, 0x000000d8, 0x000000ab, 0x0000004d, 0x0000009a};
  switch (keysize) {
  case 128:
    Nr = 10;
    Nk = 4;
    break;
  case 192:
    Nr = 12;
    Nk = 6;
    break;
  case 256:
    Nr = 14;
    Nk = 8;
    break;
  default:
    return;
  }
  for (idx = 0; idx < Nk; ++idx) {
    w[idx] = ((key[4 * idx])) | ((key[4 * idx + 1]) << 8) | ((key[4 * idx + 2]) << 16) | ((key[4 * idx + 3]) << 24);
  }
  for (idx = Nk; idx < Nb * (Nr + 1); ++idx) {
    temp = w[idx - 1];
    if ((idx % Nk) == 0) {
      temp = (((temp) >> 8) | ((temp) << 24));
      temp = SubWord(temp);
      temp ^= Rcon[(idx - 1) / Nk];
    } else if (Nk > 6 && (idx % Nk) == 4)
      temp = SubWord(temp);
    w[idx] = w[idx - Nk] ^ temp;
  }
}
```