user: 请从给定的汇编指令推导出C源代码：

```asm
<base64Decode>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0xa8,%rsp
  mov    %rdx,-0xb0(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  test   %rsi,%rsi
  je     L67
  mov    %rdi,%r15
  test   %rdi,%rdi
  je     L67
  movdqa D69(%rip),%xmm0
  mov    %rdx,%rbx
  mov    %rsi,%r14
  movb   $0x0,-0x40(%rbp)
  movaps %xmm0,-0x90(%rbp)
  movdqa D47(%rip),%xmm0
  movaps %xmm0,-0x80(%rbp)
  movdqa D1(%rip),%xmm0
  movaps %xmm0,-0x70(%rbp)
  movdqa D16(%rip),%xmm0
  movaps %xmm0,-0x60(%rbp)
  movdqa D24(%rip),%xmm0
  movaps %xmm0,-0x50(%rbp)
  call   <strlen@plt>
  movl   $0x0,(%rbx)
  mov    $0x2000,%edi
  mov    %eax,%r12d
  call   <malloc@plt>
  lea    D14(%rip),%rsi
  mov    %rax,(%r14)
  mov    %rax,%rdi
  call   <strcpy@plt>
  mov    %r12d,%eax
  mov    %rsp,%rdx
  lea    0xf(,%rax,4),%rax
  shr    $0x4,%rax
  shl    $0x4,%rax
  mov    %rax,%rsi
  and    $0xfffffffffffff000,%rsi
  sub    %rsi,%rdx
  cmp    %rdx,%rsp
  je     L302
L98:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rdx,%rsp
  jne    L98
L302:
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L32
  orq    $0x0,-0x8(%rsp,%rax,1)
L32:
  mov    %rsp,-0xc0(%rbp)
  xor    %r9d,%r9d
  mov    %r14,%rcx
  xor    %r11d,%r11d
  xor    %r13d,%r13d
  xor    %r8d,%r8d
  xor    %edx,%edx
  mov    %r9d,%r14d
  nopl   0x0(%rax)
L71:
  mov    %r8d,%ebx
  cmp    %r8d,%r12d
  jae    L307
  jmp    L178
  nopw   0x0(%rax,%rax,1)
L167:
  sub    $0x2b,%eax
  cltq
  movzbl -0x90(%rbp,%rax,1),%eax
  test   %al,%al
  je     L217
  cmp    $0x24,%al
  je     L217
  sub    $0x3d,%al
  sete   %sil
  cmp    %ebx,%r12d
  jb     L178
  nopl   0x0(%rax,%rax,1)
L198:
  test   %sil,%sil
  je     L90
L307:
  mov    %ebx,%eax
  add    $0x1,%ebx
  movzbl (%r15,%rax,1),%eax
  lea    -0x2b(%rax),%esi
  cmp    $0x4f,%sil
  jbe    L167
L217:
  mov    $0x1,%esi
  xor    %eax,%eax
  cmp    %ebx,%r12d
  jae    L198
L178:
  movb   $0x0,-0x94(%rbp,%rdx,1)
L316:
  test   %r13d,%r13d
  jne    L193
L105:
  cmp    %ebx,%r12d
  jb     L277
  cmp    %r8d,%r12d
  jb     L364
  xor    %r13d,%r13d
  xor    %edx,%edx
L57:
  mov    %ebx,%r8d
  jmp    L71
L67:
  mov    $0x1,%eax
L273:
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L127
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L364:
  mov    %rcx,%r14
L209:
  xor    %eax,%eax
L254:
  add    $0x1,%eax
  cmp    $0x3,%eax
  ja     L159
  cmp    %ebx,%r12d
  jae    L254
L315:
  test   %r11d,%r11d
  je     L19
  mov    -0xc0(%rbp),%rax
  lea    -0x1(%r11),%edx
  lea    0x4(%rax,%rdx,4),%rdi
  nopl   0x0(%rax,%rax,1)
L278:
  mov    (%rax),%edx
  mov    (%r14),%rcx
  add    $0x4,%rax
  movb   $0x0,(%rcx,%rdx,1)
  cmp    %rax,%rdi
  jne    L278
L19:
  lea    -0x1(%r12),%eax
  xor    %edx,%edx
  cmpb   $0x3d,(%r15,%rax,1)
  jne    L230
  lea    -0x2(%r12),%eax
  xor    %edx,%edx
  cmpb   $0x3d,(%r15,%rax,1)
  sete   %dl
  add    $0x1,%edx
L230:
  lea    (%r12,%r12,2),%eax
  mov    -0xb0(%rbp),%rdi
  shr    $0x2,%eax
  sub    %edx,%eax
  mov    %eax,(%rdi)
  xor    %eax,%eax
  jmp    L273
  nopl   0x0(%rax,%rax,1)
L90:
  cmp    %ebx,%r12d
  jb     L178
  add    $0x1,%r13d
  test   %al,%al
  je     L179
  mov    %edx,%esi
  sub    $0x1,%eax
  mov    %al,-0x94(%rbp,%rsi,1)
L179:
  add    $0x1,%edx
  cmp    $0x3,%edx
  jbe    L57
  jmp    L316
  xchg   %ax,%ax
L159:
  cmp    %ebx,%r12d
  jae    L209
  jmp    L315
  xchg   %ax,%ax
L193:
  movzbl -0x93(%rbp),%edx
  movzbl -0x94(%rbp),%r10d
  xor    %eax,%eax
  movzbl -0x92(%rbp),%esi
  mov    %edx,%edi
  shl    $0x2,%r10d
  shr    $0x4,%dil
  shl    $0x4,%edx
  or     %r10d,%edi
  mov    %dil,%al
  mov    %esi,%edi
  shr    $0x2,%dil
  or     %edi,%edx
  mov    %dl,%ah
  mov    %ax,-0x9a(%rbp)
  mov    %esi,%eax
  shl    $0x6,%eax
  or     -0x91(%rbp),%al
  sub    $0x1,%r13d
  mov    %al,-0x98(%rbp)
  mov    %r13d,-0xa4(%rbp)
  je     L243
  lea    -0x9a(%rbp),%rax
  xor    %r13d,%r13d
  mov    %r8d,-0xc8(%rbp)
  mov    %rax,-0xb8(%rbp)
  mov    %r12d,-0xa8(%rbp)
  mov    %r11d,%r12d
  mov    %ebx,-0xc4(%rbp)
  mov    %rcx,%rbx
  mov    %r15,-0xd0(%rbp)
  mov    %r13,%r15
L36:
  mov    -0xb8(%rbp),%rax
  movzbl (%rax,%r15,1),%eax
  test   %al,%al
  jne    L275
  mov    -0xb0(%rbp),%rdi
  mov    %r12d,%eax
  add    $0x1,%r14d
  add    $0x1,%r12d
  mov    (%rdi),%edx
  mov    -0xc0(%rbp),%rdi
  add    %r15d,%edx
  mov    %edx,(%rdi,%rax,4)
L234:
  add    $0x1,%r15
  cmp    %r15d,-0xa4(%rbp)
  ja     L36
  mov    %r12d,%r11d
  mov    %rbx,%rcx
  mov    -0xa8(%rbp),%r12d
  mov    -0xc8(%rbp),%r8d
  mov    -0xd0(%rbp),%r15
  mov    -0xc4(%rbp),%ebx
L243:
  mov    -0xb0(%rbp),%rax
  mov    -0xa4(%rbp),%edi
  add    %edi,(%rax)
  jmp    L105
L275:
  lea    -0x97(%rbp),%r13
  lea    D63(%rip),%rsi
  movzbl %al,%edx
  mov    %r13,%rdi
  call   <sprintf@plt>
  mov    (%rbx),%rdi
  mov    %r13,%rsi
  call   <strcat@plt>
  test   %r14d,%r14d
  je     L234
  nop
L365:
  mov    (%rbx),%rdi
  mov    %r13,%rsi
  call   <strcat@plt>
  sub    $0x1,%r14d
  jne    L365
  jmp    L234
L277:
  mov    %rcx,%r14
  jmp    L315
L127:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D69
type_guessed: byte[16]
name: parse_data
arguments: data_tag: D47
type_guessed: byte[16]
name: parse_data
arguments: data_tag: D1
type_guessed: byte[16]
name: parse_data
arguments: data_tag: D16
type_guessed: byte[16]
name: parse_data
arguments: data_tag: D24
type_guessed: byte[16]
name: parse_data
arguments: data_tag: D14
type_guessed: string
name: parse_data
arguments: data_tag: D63
type_guessed: string

tool: {"D69": [0x7c,0x24,0x24,0x24,0x7d,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x24]}

tool: {"D47": [0x24,0x24,0x24,0x24,0x24,0x24,0x3e,0x3f,0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47]}

tool: {"D1": [0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57]}

tool: {"D16": [0x24,0x24,0x24,0x24,0x24,0x24,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,0x60,0x61]}

tool: {"D24": [0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,0x70,0x71]}

tool: 

tool: D63: %c

assistant: ```c
int base64Decode(const char *encoded, char **decoded, int *decodedLen) {
  if (decoded == NULL || encoded == NULL) {
    return 1;
  }
  unsigned char in[4], out[3], v;
  char temp[3], chars[] = "|$$$}rstuvwxyz{$$$$$$$>?@ABCDEFGHIJKLMNOPQRSTUVW$$$$$$XYZ[\\]^_`abcdefghijklmnopq";
  unsigned int i, j = 0, pos, length = strlen(encoded);
  (*decodedLen) = 0;
  *decoded = (char *)malloc(sizeof(char) * 8192);
  strcpy((*decoded), "");
  int isNullTerminator = 0;
  unsigned int numNullTerminators = 0;
  unsigned nullTerminators[length];
  while (j <= length) {
    for (pos = 0, i = 0; i < 4 && j <= length; i++) {
      v = 0;
      while (j <= length && v == 0) {
        v = (unsigned char)encoded[j++];
        v = (unsigned char)((v < 43 || v > 122) ? 0 : chars[v - 43]);
        if (v) {
          v = (unsigned char)((v == '$') ? 0 : v - 61);
        }
      }
      if (j <= length) {
        pos++;
        if (v) {
          in[i] = (unsigned char)(v - 1);
        }
      } else {
        in[i] = 0;
      }
    }
    if (pos) {
      out[0] = (unsigned char)(in[0] << 2 | in[1] >> 4);
      out[1] = (unsigned char)(in[1] << 4 | in[2] >> 2);
      out[2] = (unsigned char)(((in[2] << 6) & 0xc0) | in[3]);
      for (i = 0; i < pos - 1; i++) {
        if (out[i] != '\0') {
          sprintf(temp, "%c", out[i]);
          strcat(*decoded, temp);
          while (isNullTerminator) {
            strcat(*decoded, temp);
            isNullTerminator--;
          }
        } else {
          isNullTerminator++;
          nullTerminators[numNullTerminators++] = *decodedLen + i;
        }
      }
      (*decodedLen) += i;
    }
  }
  for (i = 0; i < numNullTerminators; i++) {
    (*decoded)[nullTerminators[i]] = '\0';
  }
  int correction = 0;
  if (encoded[length - 1] == '=') {
    correction++;
    if (encoded[length - 2] == '=') {
      correction++;
    }
  }
  (*decodedLen) = (length * 3) / 4 - correction;
  return 0;
}
```