user: 请将以下的汇编代码转换成C语言代码：

```asm
<fmtnum>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x20,%rsp
  mov    %rdi,%rax
  mov    %esi,%edi
  mov    %ecx,%r10d
  mov    %r9d,%r13d
  mov    %fs:0x28,%rcx
  mov    %rcx,0x18(%rsp)
  xor    %ecx,%ecx
  mov    %rax,%rsi
  test   %rax,%rax
  jns    L236
  test   %edx,%edx
  jne    L231
L236:
  mov    $0x0,%r14d
L227:
  mov    $0x0,%eax
  test   %edi,%edi
  js     L95
L207:
  test   %eax,%eax
  lea    D2(%rip),%r9
  lea    D17(%rip),%rax
  cmove  %rax,%r9
  mov    $0x1,%ecx
  mov    %edi,%edi
  lea    -0x1(%rsp),%r11
L112:
  mov    %ecx,%ebp
  mov    %rsi,%rax
  mov    $0x0,%edx
  div    %rdi
  movzbl (%r9,%rdx,1),%edx
  mov    %dl,(%r11,%rcx,1)
  mov    %rsi,%rdx
  mov    %rax,%rsi
  mov    %rcx,%r12
  add    $0x1,%rcx
  cmp    %rdx,%rdi
  jbe    L112
  movslq %ebp,%rax
  movb   $0x0,(%rsp,%rax,1)
  sub    %ebp,%r8d
  mov    $0x0,%ebx
  cmovns %r8d,%ebx
  test   %r10d,%r10d
  je     L134
  neg    %ebx
  jmp    L14
L231:
  neg    %rax
  mov    %rax,%rsi
  mov    $0x2d,%r14d
  jmp    L227
L95:
  neg    %edi
  mov    $0x1,%eax
  jmp    L207
L134:
  test   %r13d,%r13d
  je     L152
  test   %r8d,%r8d
  jle    L152
  test   %r14d,%r14d
  jne    L215
L178:
  mov    %ebx,%r14d
L54:
  mov    %r13d,%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  sub    $0x1,%r14d
  test   %r14d,%r14d
  jg     L54
  test   %ebx,%ebx
  mov    $0x1,%eax
  cmovg  %ebx,%eax
  sub    %eax,%ebx
  jmp    L124
L215:
  mov    %r14d,%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  sub    $0x1,%ebx
  test   %ebx,%ebx
  jg     L178
  jmp    L124
L152:
  test   %r8d,%r8d
  jle    L14
L23:
  mov    $0x20,%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  sub    $0x1,%ebx
  jne    L23
L14:
  test   %r14d,%r14d
  jne    L27
L124:
  test   %ebp,%ebp
  jle    L153
  movslq %ebp,%rbp
  lea    (%rsp,%rbp,1),%r13
  lea    -0x1(%rsp,%rbp,1),%rbp
  lea    -0x1(%r12),%eax
  sub    %rax,%rbp
L94:
  movsbl -0x1(%r13),%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  sub    $0x1,%r13
  cmp    %rbp,%r13
  jne    L94
L153:
  test   %ebx,%ebx
  jns    L80
L186:
  mov    $0x20,%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  add    $0x1,%ebx
  jne    L186
L80:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L34
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L27:
  mov    %r14d,%edi
  mov    $0x0,%eax
  call   <dopr_outch@plt>
  jmp    L124
L34:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D2
datatype: string
name: unpack_data
arguments: data_label: D17
datatype: string

tool: D2: 0123456789ABCDEF

tool: D17: 0123456789abcdef

assistant: ```c
void fmtnum(value, base, dosign, ljust, len, zpad) long value;
int base, dosign, ljust, len, zpad;
{
  int signvalue = 0;
  unsigned long uvalue;
  char convert[20];
  int place = 0;
  int padlen = 0;
  int caps = 0;
  uvalue = value;
  if (dosign) {
    if (value < 0) {
      signvalue = '-';
      uvalue = -value;
    }
  }
  if (base < 0) {
    caps = 1;
    base = -base;
  }
  do {
    convert[place++] = (caps ? "0123456789ABCDEF" : "0123456789abcdef")[uvalue % (unsigned)base];
    uvalue = (uvalue / (unsigned)base);
  } while (uvalue);
  convert[place] = 0;
  padlen = len - place;
  if (padlen < 0)
    padlen = 0;
  if (ljust)
    padlen = -padlen;
  if (zpad && padlen > 0) {
    if (signvalue) {
      dopr_outch(signvalue);
      --padlen;
      signvalue = 0;
    }
    while (padlen > 0) {
      dopr_outch(zpad);
      --padlen;
    }
  }
  while (padlen > 0) {
    dopr_outch(' ');
    --padlen;
  }
  if (signvalue)
    dopr_outch(signvalue);
  while (place > 0)
    dopr_outch(convert[--place]);
  while (padlen < 0) {
    dopr_outch(' ');
    ++padlen;
  }
}
```