user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<tng_compress_uncompress_pos_gen>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,%rbx
  mov    %rsi,0x10(%rsp)
  mov    %rdx,0x18(%rsp)
  mov    %rcx,0x20(%rsp)
  mov    %r8,(%rsp)
  mov    %r9,0x8(%rsp)
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    $0x1,%ebp
  mov    $0x0,%r12d
  cmp    $0x50474e54,%eax
  je     L116
L304:
  mov    %r12,%rdi
  call   <free@plt>
  mov    %ebp,%eax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L116:
  lea    0x4(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,%r13
  mov    %eax,0x40(%rsp)
  lea    0x8(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,%r15
  mov    %eax,0x58(%rsp)
  lea    0xc(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,0x28(%rsp)
  lea    0x10(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,%rbp
  lea    0x14(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,0x38(%rsp)
  lea    0x18(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,0x48(%rsp)
  lea    0x1c(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    0x8(%rsp),%rcx
  mov    %rax,(%rcx)
  lea    0x20(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    (%rsp),%rcx
  mov    %rax,(%rcx)
  mov    %r15d,%r14d
  imul   %r13d,%r14d
  lea    (%r14,%r14,2),%edi
  shl    $0x2,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  lea    0x24(%rbx),%rdi
  mov    $0x4,%esi
  call   <readbufferfix@plt>
  mov    %rax,0x50(%rsp)
  mov    $0x0,%eax
  call   <Ptngc_coder_init@plt>
  lea    0x0(%r13,%r13,2),%ecx
  mov    %ecx,0x44(%rsp)
  lea    0x28(%rbx),%rsi
  sub    $0x8,%rsp
  push   %r13
  mov    %ebp,%r9d
  mov    0x38(%rsp),%r8d
  mov    %r12,%rdx
  mov    %rax,0x40(%rsp)
  mov    %rax,%rdi
  call   <Ptngc_unpack_array@plt>
  mov    %eax,%ebp
  mov    0x40(%rsp),%rdi
  call   <Ptngc_coder_deinit@plt>
  add    $0x10,%rsp
  test   %ebp,%ebp
  jne    L304
  mov    0x28(%rsp),%rdx
  cmp    $0xa,%edx
  ja     L317
  mov    $0x1,%eax
  mov    %edx,%ecx
  shl    %cl,%rax
  test   $0x4a0,%eax
  jne    L401
  test   $0x208,%eax
  je     L317
  cmpq   $0x0,0x10(%rsp)
  je     L301
  mov    0x8(%rsp),%rdx
  mov    (%rdx),%rsi
  mov    (%rsp),%rdx
  mov    (%rdx),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  mov    %rax,%rcx
  mov    %r12,%r8
  mov    $0x1,%edx
  mov    0x40(%rsp),%esi
  mov    0x10(%rsp),%rdi
  call   <unquantize_intra_differences@plt>
L197:
  mov    0x40(%rsp),%esi
  mov    %r12,%rdi
  call   <unquant_intra_differences_first_frame@plt>
L317:
  cmp    $0x1,%r15d
  jle    L304
  mov    $0x0,%eax
  call   <Ptngc_coder_init@plt>
  mov    %rax,%rdi
  lea    -0x1(%r15),%eax
  mov    %eax,0x28(%rsp)
  sub    %r13d,%r14d
  lea    (%r14,%r14,2),%ecx
  mov    %ecx,0x5c(%rsp)
  movslq 0x44(%rsp),%r14
  lea    0x0(,%r14,4),%rdx
  mov    %rdx,0x30(%rsp)
  lea    (%r12,%rdx,1),%r15
  mov    0x50(%rsp),%eax
  add    $0x2c,%eax
  cltq
  lea    (%rbx,%rax,1),%rsi
  sub    $0x8,%rsp
  push   %r13
  mov    0x58(%rsp),%r9d
  mov    0x48(%rsp),%rbx
  mov    %ebx,%r8d
  mov    %r15,%rdx
  mov    %rdi,%r13
  call   <Ptngc_unpack_array@plt>
  mov    %eax,%ebp
  mov    %r13,%rdi
  call   <Ptngc_coder_deinit@plt>
  add    $0x10,%rsp
  test   %ebp,%ebp
  jne    L304
  mov    %ebx,%eax
  sub    $0x1,%eax
  cmp    $0x1,%eax
  jbe    L357
  cmp    $0x8,%ebx
  je     L357
  mov    0x38(%rsp),%rdx
  cmp    $0xa,%edx
  ja     L304
  mov    $0x1,%eax
  mov    %edx,%ecx
  shl    %cl,%rax
  test   $0x4a0,%eax
  jne    L191
  test   $0x208,%eax
  je     L304
  mov    0x10(%rsp),%rbx
  test   %rbx,%rbx
  je     L238
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  mov    %rax,%rcx
  lea    (%rbx,%r14,8),%rdi
  mov    %r15,%r8
  mov    0x28(%rsp),%edx
  mov    0x40(%rsp),%esi
  call   <unquantize_intra_differences@plt>
  jmp    L304
L401:
  cmpq   $0x0,0x10(%rsp)
  je     L22
  mov    0x8(%rsp),%rdx
  mov    (%rdx),%rsi
  mov    (%rsp),%rdx
  mov    (%rdx),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  mov    %rax,%rcx
  mov    %r12,%r8
  mov    $0x1,%edx
  mov    0x40(%rsp),%esi
  mov    0x10(%rsp),%rdi
  call   <unquantize@plt>
  jmp    L317
L22:
  cmpq   $0x0,0x18(%rsp)
  je     L261
  mov    0x8(%rsp),%rdx
  mov    (%rdx),%rsi
  mov    (%rsp),%rdx
  mov    (%rdx),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  mov    %r12,%rcx
  mov    $0x1,%edx
  mov    0x40(%rsp),%esi
  mov    0x18(%rsp),%rdi
  call   <unquantize_float@plt>
  jmp    L317
L261:
  mov    0x20(%rsp),%rdi
  test   %rdi,%rdi
  je     L317
  mov    0x44(%rsp),%eax
  lea    0x0(,%rax,4),%edx
  mov    %r12,%rsi
  call   <memcpy@plt>
  jmp    L317
L301:
  cmpq   $0x0,0x18(%rsp)
  je     L139
  mov    0x8(%rsp),%rdx
  mov    (%rdx),%rsi
  mov    (%rsp),%rdx
  mov    (%rdx),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  mov    %r12,%rcx
  mov    $0x1,%edx
  mov    0x40(%rsp),%esi
  mov    0x18(%rsp),%rdi
  call   <unquantize_intra_differences_float@plt>
  jmp    L197
L139:
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L197
  mov    %r12,%rcx
  mov    $0x1,%edx
  mov    0x40(%rsp),%esi
  mov    %rax,%rdi
  call   <unquantize_intra_differences_int@plt>
  jmp    L197
L357:
  mov    0x10(%rsp),%rbx
  test   %rbx,%rbx
  je     L71
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  mov    %rax,%rcx
  mov    %r12,%r8
  mov    0x58(%rsp),%edx
  mov    0x40(%rsp),%esi
  mov    %rbx,%rdi
  call   <unquantize_inter_differences@plt>
  jmp    L304
L71:
  mov    0x18(%rsp),%rbx
  test   %rbx,%rbx
  je     L279
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  mov    %r12,%rcx
  mov    0x58(%rsp),%edx
  mov    0x40(%rsp),%esi
  mov    %rbx,%rdi
  call   <unquantize_inter_differences_float@plt>
  jmp    L304
L279:
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L304
  mov    %r12,%rcx
  mov    0x58(%rsp),%edx
  mov    0x40(%rsp),%esi
  mov    %rax,%rdi
  call   <unquantize_inter_differences_int@plt>
  jmp    L304
L191:
  mov    0x10(%rsp),%rbx
  test   %rbx,%rbx
  je     L271
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  mov    %rax,%rcx
  lea    (%rbx,%r14,8),%rdi
  mov    %r15,%r8
  mov    0x28(%rsp),%edx
  mov    0x40(%rsp),%esi
  call   <unquantize@plt>
  jmp    L304
L271:
  mov    0x18(%rsp),%rbx
  test   %rbx,%rbx
  je     L272
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  add    0x30(%rsp),%rbx
  mov    %rbx,%rdi
  mov    %r15,%rcx
  mov    0x28(%rsp),%edx
  mov    0x40(%rsp),%esi
  call   <unquantize_float@plt>
  jmp    L304
L272:
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L304
  mov    0x5c(%rsp),%edx
  shl    $0x2,%edx
  add    0x30(%rsp),%rax
  mov    %rax,%rdi
  mov    %r15,%rsi
  call   <memcpy@plt>
  jmp    L304
L238:
  mov    0x18(%rsp),%rbx
  test   %rbx,%rbx
  je     L158
  mov    0x8(%rsp),%rax
  mov    (%rax),%rsi
  mov    (%rsp),%rax
  mov    (%rax),%rdi
  call   <Ptngc_i32x2_to_d@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  add    0x30(%rsp),%rbx
  mov    %rbx,%rdi
  mov    %r15,%rcx
  mov    0x28(%rsp),%edx
  mov    0x40(%rsp),%esi
  call   <unquantize_intra_differences_float@plt>
  jmp    L304
L158:
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L304
  add    0x30(%rsp),%rax
  mov    %rax,%rdi
  mov    %r15,%rcx
  mov    0x28(%rsp),%edx
  mov    0x40(%rsp),%esi
  call   <unquantize_intra_differences_int@plt>
  jmp    L304
```

assistant: ```c
int tng_compress_uncompress_pos_gen(char *data, double *posd, float *posf, int *posi, unsigned long *prec_hi, unsigned long *prec_lo) {
  int bufloc = 0;
  int length;
  int natoms, nframes;
  int initial_coding, initial_coding_parameter;
  int coding, coding_parameter;
  int *quant = NULL;
  struct coder *coder = NULL;
  int rval = 0;
  int magic_int;
  magic_int = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  if (magic_int != 0x50474E54) {
    rval = 1;
    goto error;
  }
  natoms = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  nframes = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  initial_coding = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  initial_coding_parameter = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  coding = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  coding_parameter = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  *prec_lo = readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  *prec_hi = readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  quant = malloc(natoms * nframes * 3 * sizeof *quant);
  length = (int)readbufferfix((unsigned char *)data + bufloc, 4);
  bufloc += 4;
  coder = Ptngc_coder_init();
  rval = Ptngc_unpack_array(coder, (unsigned char *)data + bufloc, quant, natoms * 3, initial_coding, initial_coding_parameter, natoms);
  Ptngc_coder_deinit(coder);
  if (rval)
    goto error;
  bufloc += length;
  if ((initial_coding == 5) || (initial_coding == 7) || (initial_coding == 10)) {
    if (posd)
      unquantize(posd, natoms, 1, (Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
    else if (posf)
      unquantize_float(posf, natoms, 1, (float)(Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
    else if (posi)
      memcpy(posi, quant, natoms * 3 * sizeof *posi);
  } else if ((initial_coding == 3) || (initial_coding == 9)) {
    if (posd)
      unquantize_intra_differences(posd, natoms, 1, (Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
    else if (posf)
      unquantize_intra_differences_float(posf, natoms, 1, (float)(Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
    else if (posi)
      unquantize_intra_differences_int(posi, natoms, 1, quant);
    unquant_intra_differences_first_frame(quant, natoms);
  }
  if (nframes > 1) {
    bufloc += 4;
    coder = Ptngc_coder_init();
    rval = Ptngc_unpack_array(coder, (unsigned char *)data + bufloc, quant + natoms * 3, (nframes - 1) * natoms * 3, coding, coding_parameter, natoms);
    Ptngc_coder_deinit(coder);
    if (rval)
      goto error;
    if ((coding == 1) || (coding == 2) || (coding == 8)) {
      if (posd)
        unquantize_inter_differences(posd, natoms, nframes, (Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
      else if (posf)
        unquantize_inter_differences_float(posf, natoms, nframes, (float)(Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant);
      else if (posi)
        unquantize_inter_differences_int(posi, natoms, nframes, quant);
    } else if ((coding == 5) || (coding == 10) || (coding == 7)) {
      if (posd)
        unquantize(posd + natoms * 3, natoms, nframes - 1, (Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant + natoms * 3);
      else if (posf)
        unquantize_float(posf + natoms * 3, natoms, nframes - 1, (float)(Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant + natoms * 3);
      else if (posi)
        memcpy(posi + natoms * 3, quant + natoms * 3, natoms * 3 * (nframes - 1) * sizeof *posi);
    } else if ((coding == 3) || (coding == 9)) {
      if (posd)
        unquantize_intra_differences(posd + natoms * 3, natoms, nframes - 1, (Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant + natoms * 3);
      else if (posf)
        unquantize_intra_differences_float(posf + natoms * 3, natoms, nframes - 1, (float)(Ptngc_i32x2_to_d(*prec_hi, *prec_lo)), quant + natoms * 3);
      else if (posi)
        unquantize_intra_differences_int(posi + natoms * 3, natoms, nframes - 1, quant + natoms * 3);
    }
  }
error:
  free(quant);
  return rval;
}
```