user: 下面的汇编指令对应的C源代码是什么：

```asm
<sprintf_dec>:
  endbr64
  sub    $0x28,%rsp
  mov    %rdi,%r8
  mov    %esi,%edi
  mov    %ecx,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  test   %edi,%edi
  jne    L268
  movb   $0x30,(%rsp)
  mov    $0x1,%r10d
  cmp    $0x1,%ecx
  jle    L162
L426:
  lea    0x1(%r10),%eax
  mov    %esi,%edx
  sub    %eax,%edx
  mov    $0x0,%eax
  cmovns %edx,%eax
  lea    0x1(%rax),%r11d
  cmp    $0xe,%edx
  jle    L160
  movdqa D18(%rip),%xmm0
  movslq %r10d,%rdx
  movd   %r10d,%xmm4
  mov    %r11d,%ecx
  and    $0xfffffff0,%ecx
  movups %xmm0,(%rsp,%rdx,1)
  pshufd $0x0,%xmm4,%xmm0
  lea    (%rcx,%r10,1),%r9d
  paddd  D8(%rip),%xmm0
  pshufd $0xff,%xmm0,%xmm0
  movd   %xmm0,%edx
  cmp    %ecx,%r11d
  je     L293
L131:
  mov    %eax,%edx
  sub    %ecx,%edx
  lea    0x1(%rdx),%r11d
  cmp    $0x6,%edx
  jbe    L482
  movq   D18(%rip),%xmm0
  movslq %r10d,%rdx
  movq   D20(%rip),%xmm1
  add    $0x20,%rdx
  add    %rsp,%rdx
  movq   %xmm0,-0x20(%rcx,%rdx,1)
  lea    0x1(%r9),%edx
  movd   %r9d,%xmm0
  mov    %r11d,%ecx
  movd   %edx,%xmm2
  and    $0xfffffff8,%ecx
  punpckldq %xmm2,%xmm0
  add    %ecx,%r9d
  paddd  %xmm1,%xmm0
  pshufd $0xe5,%xmm0,%xmm3
  movd   %xmm3,%edx
  cmp    %ecx,%r11d
  je     L293
L482:
  movslq %r9d,%rcx
  lea    0x1(%r9),%edx
  movb   $0x30,(%rsp,%rcx,1)
  cmp    %edx,%esi
  jle    L293
  movslq %edx,%rdx
  lea    0x2(%r9),%ecx
  movb   $0x30,(%rsp,%rdx,1)
  cmp    %ecx,%esi
  jle    L263
  movslq %ecx,%rcx
  lea    0x3(%r9),%edx
  movb   $0x30,(%rsp,%rcx,1)
  cmp    %edx,%esi
  jle    L293
  movslq %edx,%rdx
  lea    0x4(%r9),%ecx
  movb   $0x30,(%rsp,%rdx,1)
  cmp    %ecx,%esi
  jle    L263
  movslq %ecx,%rcx
  lea    0x5(%r9),%edx
  movb   $0x30,(%rsp,%rcx,1)
  cmp    %edx,%esi
  jle    L293
  movslq %edx,%rdx
  lea    0x6(%r9),%ecx
  movb   $0x30,(%rsp,%rdx,1)
  cmp    %ecx,%esi
  jle    L263
  movslq %ecx,%rcx
  lea    0x7(%r9),%edx
  movb   $0x30,(%rsp,%rcx,1)
L293:
  add    %r10d,%eax
  cmp    $0x1,%edi
  je     L374
  movslq %eax,%rdx
  lea    0x1(%r8),%rsi
  lea    -0x1(%rax),%ecx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,(%r8)
L388:
  movslq %ecx,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,(%rsi)
  lea    -0x1(%rcx),%edx
  test   %ecx,%ecx
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0x1(%rsi)
  lea    -0x2(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0x2(%rsi)
  lea    -0x3(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0x3(%rsi)
  lea    -0x4(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0x4(%rsi)
  lea    -0x5(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0x5(%rsi)
  lea    -0x6(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0x6(%rsi)
  lea    -0x7(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0x7(%rsi)
  lea    -0x8(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0x8(%rsi)
  lea    -0x9(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0x9(%rsi)
  lea    -0xa(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0xa(%rsi)
  lea    -0xb(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0xb(%rsi)
  lea    -0xc(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0xc(%rsi)
  lea    -0xd(%rcx),%edx
  test   %edi,%edi
  jle    L137
  movslq %edx,%rdi
  movzbl (%rsp,%rdi,1),%edi
  mov    %dil,0xd(%rsi)
  lea    -0xe(%rcx),%edi
  test   %edx,%edx
  jle    L137
  movslq %edi,%rdx
  sub    $0xf,%ecx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,0xe(%rsi)
  test   %edi,%edi
  jle    L137
  movslq %ecx,%rcx
  movzbl (%rsp,%rcx,1),%edx
  mov    %dl,0xf(%rsi)
  nopw   0x0(%rax,%rax,1)
L137:
  add    $0x1,%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L533
  add    $0x28,%rsp
  ret
  nopl   0x0(%rax)
L268:
  js     L230
  mov    %edi,%edx
  xor    %edi,%edi
L253:
  mov    %edx,%eax
  mov    $0xcccccccd,%ecx
  imul   %rcx,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%edx
  add    $0x30,%edx
  mov    %dl,(%rsp)
  test   %eax,%eax
  je     L64
  mov    %eax,%edx
  imul   %rcx,%rdx
  shr    $0x23,%rdx
  lea    (%rdx,%rdx,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%eax
  add    $0x30,%eax
  mov    %al,0x1(%rsp)
  test   %edx,%edx
  je     L487
  mov    %edx,%eax
  imul   %rcx,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%edx
  add    $0x30,%edx
  mov    %dl,0x2(%rsp)
  test   %eax,%eax
  je     L276
  mov    %eax,%edx
  imul   %rcx,%rdx
  shr    $0x23,%rdx
  lea    (%rdx,%rdx,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%eax
  add    $0x30,%eax
  mov    %al,0x3(%rsp)
  test   %edx,%edx
  je     L118
  mov    %edx,%eax
  imul   %rcx,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%edx
  add    $0x30,%edx
  mov    %dl,0x4(%rsp)
  test   %eax,%eax
  je     L23
  mov    %eax,%edx
  imul   %rcx,%rdx
  shr    $0x23,%rdx
  lea    (%rdx,%rdx,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%eax
  add    $0x30,%eax
  mov    %al,0x5(%rsp)
  test   %edx,%edx
  je     L463
  mov    %edx,%eax
  imul   %rcx,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%edx
  add    $0x30,%edx
  mov    %dl,0x6(%rsp)
  test   %eax,%eax
  je     L372
  mov    %eax,%edx
  imul   %rcx,%rdx
  shr    $0x23,%rdx
  lea    (%rdx,%rdx,4),%r9d
  add    %r9d,%r9d
  sub    %r9d,%eax
  add    $0x30,%eax
  mov    %al,0x7(%rsp)
  test   %edx,%edx
  je     L407
  mov    %edx,%eax
  imul   %rcx,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%ecx
  add    %ecx,%ecx
  sub    %ecx,%edx
  add    $0x30,%edx
  mov    %dl,0x8(%rsp)
  test   %eax,%eax
  je     L437
  add    $0x30,%eax
  mov    $0xa,%r10d
  mov    %al,0x9(%rsp)
  mov    $0x9,%eax
L444:
  cmp    %r10d,%esi
  jg     L426
  cmp    $0x1,%edi
  je     L269
  movslq %eax,%rdx
  lea    0x1(%r8),%rsi
  lea    -0x1(%rax),%ecx
  movzbl (%rsp,%rdx,1),%edx
  mov    %dl,(%r8)
  test   %eax,%eax
  je     L137
  jmp    L388
  nopl   0x0(%rax)
L230:
  neg    %edi
  mov    %edi,%edx
  mov    $0x1,%edi
  jmp    L253
L269:
  mov    %r10d,%edx
  nopl   0x0(%rax)
L374:
  movslq %edx,%rax
  movb   $0x2d,(%r8)
  lea    0x1(%r8),%rsi
  lea    -0x1(%rdx),%ecx
  movb   $0x2d,(%rsp,%rax,1)
  mov    %edx,%eax
  jmp    L388
  nopl   0x0(%rax)
L263:
  mov    %ecx,%edx
  jmp    L293
L162:
  movb   $0x30,(%r8)
  jmp    L137
L160:
  mov    %r10d,%r9d
  xor    %ecx,%ecx
  jmp    L131
L64:
  mov    $0x1,%r10d
  jmp    L444
L487:
  mov    $0x1,%eax
  mov    $0x2,%r10d
  jmp    L444
L372:
  mov    $0x6,%eax
  mov    $0x7,%r10d
  jmp    L444
L276:
  mov    $0x2,%eax
  mov    $0x3,%r10d
  jmp    L444
L118:
  mov    $0x3,%eax
  mov    $0x4,%r10d
  jmp    L444
L23:
  mov    $0x4,%eax
  mov    $0x5,%r10d
  jmp    L444
L463:
  mov    $0x5,%eax
  mov    $0x6,%r10d
  jmp    L444
L407:
  mov    $0x7,%eax
  mov    $0x8,%r10d
  jmp    L444
L437:
  mov    $0x8,%eax
  mov    $0x9,%r10d
  jmp    L444
L533:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: tag: D18
datatype: byte[16]
name: read_data
arguments: tag: D8
datatype: byte[16]
name: read_data
arguments: tag: D20
datatype: byte[8]

tool: {"D18": [0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30]}

tool: {"D8": [0x0d,0x00,0x00,0x00,0x0e,0x00,0x00,0x00,0x0f,0x00,0x00,0x00,0x10,0x00,0x00,0x00]}

tool: {"D20": [0x07,0x00,0x00,0x00,0x07,0x00,0x00,0x00]}

assistant: ```c
int sprintf_dec(char *str, int num, int zero_padding, int width) {
  char *dst;
  int i = 0;
  char tmp_buf[16 + 1];
  int minus_sign = 0;
  int one_digit;
  dst = str;
  if (num == 0) {
    tmp_buf[i++] = '0';
  } else {
    if (num < 0) {
      minus_sign = 1;
      num = -1 * num;
    }
    while (num > 0) {
      one_digit = num % 10;
      tmp_buf[i++] = '0' + one_digit;
      num /= 10;
    }
  }
  while (width - i > 0) {
    tmp_buf[i++] = '0';
  }
  if (minus_sign == 1) {
    tmp_buf[i++] = '-';
  }
  while (i-- > 0) {
    *dst++ = tmp_buf[i];
  }
  return dst - str;
}
```