user: 下面的汇编指令对应的C源代码是什么：

```asm
<sscanf_lat_lon>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x28(%rbp),%r8
  lea    -0xc(%rbp),%rdi
  lea    -0x20(%rbp),%rcx
  lea    -0x30(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  lea    -0xa(%rbp),%rsi
  push   %rsi
  lea    -0x18(%rbp),%rsi
  push   %rsi
  mov    %r8,%r9
  mov    %rdi,%r8
  lea    D87(%rip),%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <sscanf@plt>
  add    $0x10,%rsp
  cmp    $0x6,%eax
  jne    L101
  movsd  -0x20(%rbp),%xmm0
  movsd  D127(%rip),%xmm2
  movapd %xmm0,%xmm1
  divsd  %xmm2,%xmm1
  movsd  -0x30(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  movzbl -0xc(%rbp),%eax
  cmp    $0x73,%al
  je     L153
  movzbl -0xc(%rbp),%eax
  cmp    $0x53,%al
  jne    L149
L153:
  mov    -0x40(%rbp),%rax
  movsd  (%rax),%xmm0
  movq   D108(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  jmp    L29
L149:
  movzbl -0xc(%rbp),%eax
  cmp    $0x6e,%al
  je     L29
  movzbl -0xc(%rbp),%eax
  cmp    $0x4e,%al
  je     L29
  mov    $0x0,%eax
  jmp    L193
L29:
  movsd  -0x18(%rbp),%xmm0
  movsd  D127(%rip),%xmm2
  movapd %xmm0,%xmm1
  divsd  %xmm2,%xmm1
  movsd  -0x28(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  movzbl -0xa(%rbp),%eax
  cmp    $0x77,%al
  je     L240
  movzbl -0xa(%rbp),%eax
  cmp    $0x57,%al
  jne    L284
L240:
  mov    -0x48(%rbp),%rax
  movsd  (%rax),%xmm0
  movq   D108(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  jmp    L144
L284:
  movzbl -0xa(%rbp),%eax
  cmp    $0x65,%al
  je     L144
  movzbl -0xa(%rbp),%eax
  cmp    $0x45,%al
  je     L144
  mov    $0x0,%eax
  jmp    L193
L144:
  mov    $0x2,%eax
  jmp    L193
L101:
  lea    -0xa(%rbp),%rdi
  lea    -0x28(%rbp),%rsi
  lea    -0xc(%rbp),%rcx
  lea    -0x30(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  mov    %rdi,%r9
  mov    %rsi,%r8
  lea    D107(%rip),%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <sscanf@plt>
  cmp    $0x4,%eax
  jne    L209
  movsd  -0x30(%rbp),%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  movzbl -0xc(%rbp),%eax
  cmp    $0x73,%al
  je     L339
  movzbl -0xc(%rbp),%eax
  cmp    $0x53,%al
  jne    L145
L339:
  mov    -0x40(%rbp),%rax
  movsd  (%rax),%xmm0
  movq   D108(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  jmp    L227
L145:
  movzbl -0xc(%rbp),%eax
  cmp    $0x6e,%al
  je     L227
  movzbl -0xc(%rbp),%eax
  cmp    $0x4e,%al
  je     L227
  mov    $0x0,%eax
  jmp    L193
L227:
  movsd  -0x28(%rbp),%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  movzbl -0xa(%rbp),%eax
  cmp    $0x77,%al
  je     L55
  movzbl -0xa(%rbp),%eax
  cmp    $0x57,%al
  jne    L16
L55:
  mov    -0x48(%rbp),%rax
  movsd  (%rax),%xmm0
  movq   D108(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  jmp    L161
L16:
  movzbl -0xa(%rbp),%eax
  cmp    $0x65,%al
  je     L161
  movzbl -0xa(%rbp),%eax
  cmp    $0x45,%al
  je     L161
  mov    $0x0,%eax
  jmp    L193
L161:
  movzbl -0xa(%rbp),%eax
  cmp    $0x65,%al
  je     L219
  movzbl -0xa(%rbp),%eax
  cmp    $0x45,%al
  jne    L86
L219:
  movsd  D29(%rip),%xmm0
  jmp    L234
L86:
  movsd  D13(%rip),%xmm0
L234:
  movsd  -0x28(%rbp),%xmm1
  mulsd  %xmm1,%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    $0x2,%eax
  jmp    L193
L209:
  lea    -0x28(%rbp),%rcx
  lea    -0x30(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  lea    D49(%rip),%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <sscanf@plt>
  cmp    $0x2,%eax
  jne    L73
  movsd  -0x30(%rbp),%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  movsd  -0x28(%rbp),%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    $0x2,%eax
  jmp    L193
L73:
  lea    -0x30(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  lea    D46(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <lat_lon_decode@plt>
  test   %rax,%rax
  je     L308
  lea    -0x28(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  lea    D68(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <lat_lon_decode@plt>
  test   %rax,%rax
  je     L308
  movsd  -0x30(%rbp),%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  movsd  -0x28(%rbp),%xmm0
  mov    -0x48(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    $0x2,%eax
  jmp    L193
L308:
  mov    $0x0,%eax
L193:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L201
  call   <__stack_chk_fail@plt>
L201:
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: label: D87
type: string
name: disassemble_data
arguments: label: D127
type: f64
name: disassemble_data
arguments: label: D108
type: byte[8]
name: disassemble_data
arguments: label: D107
type: string
name: disassemble_data
arguments: label: D29
type: byte[8]
name: disassemble_data
arguments: label: D13
type: byte[8]
name: disassemble_data
arguments: label: D49
type: string
name: disassemble_data
arguments: label: D46
type: string
name: disassemble_data
arguments: label: D68
type: string

tool: D87: %lf %lf %s %lf %lf %s

tool: D127: 60

tool: {"D108": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80]}

tool: D107: %lf %s %lf %s

tool: {"D29": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

tool: {"D13": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0xbf]}

tool: D49: %lf %lf

tool: D46: NSns

tool: D68: EWew

assistant: ```c
int sscanf_lat_lon(char *readln, double *lat, double *lon) {
  double dlat, dlon, mlat, mlon;
  char ns[2], ew[2];
  if (sscanf(readln, "%lf %lf %s %lf %lf %s", &dlat, &mlat, ns, &dlon, &mlon, ew) == 6) {
    *lat = (dlat + mlat / 60.);
    if (*ns == 's' || *ns == 'S')
      *lat = -*lat;
    else if (*ns != 'n' && *ns != 'N')
      return 0;
    *lon = (dlon + mlon / 60.);
    if (*ew == 'w' || *ew == 'W')
      *lon = -*lon;
    else if (*ew != 'e' && *ew != 'E')
      return 0;
    return 2;
  } else if (sscanf(readln, "%lf %s %lf %s", &dlat, ns, &dlon, ew) == 4) {
    *lat = dlat;
    if (*ns == 's' || *ns == 'S')
      *lat = -*lat;
    else if (*ns != 'n' && *ns != 'N')
      return 0;
    *lon = dlon;
    if (*ew == 'w' || *ew == 'W')
      *lon = -*lon;
    else if (*ew != 'e' && *ew != 'E')
      return 0;
    *lon = dlon * (*ew == 'e' || *ew == 'E' ? 1 : -1);
    return 2;
  } else if (sscanf(readln, "%lf %lf", &dlat, &dlon) == 2) {
    *lat = dlat;
    *lon = dlon;
    return 2;
  } else if (lat_lon_decode(readln, "NSns", &dlat) && lat_lon_decode(readln, "EWew", &dlon)) {
    *lat = dlat;
    *lon = dlon;
    return 2;
  } else
    return 0;
}
```