user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<juxtaposition_hv>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    $0x80,%edi
  sub    $0x8,%rsp
  call   <malloc@plt>
  mov    $0x80,%edi
  mov    %rax,%r15
  call   <malloc@plt>
  mov    $0x80,%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    $0x80,%edi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    %rax,%rbp
  xor    %eax,%eax
  xchg   %ax,%ax
L7:
  mov    (%rbx,%rax,1),%edx
  mov    %edx,(%r15,%rax,1)
  mov    %edx,0x0(%r13,%rax,1)
  mov    0x80(%rbx,%rax,1),%edx
  mov    %edx,(%r14,%rax,1)
  mov    %edx,0x0(%rbp,%rax,1)
  add    $0x4,%rax
  cmp    $0x80,%rax
  jne    L7
  lea    D40(%rip),%rdi
  call   <printf@plt>
  mov    $0x8,%edx
  mov    $0x4,%esi
  mov    %r15,%rdi
  call   <affiche_tab@plt>
  lea    D31(%rip),%rdi
  call   <printf@plt>
  mov    $0x8,%edx
  mov    %r14,%rdi
  mov    $0x4,%esi
  call   <affiche_tab@plt>
  mov    %r15,%rdi
  mov    %r13,%rsi
  call   <juxtaposition_horizontale@plt>
  mov    %rbp,%rsi
  mov    %r14,%rdi
  mov    %rax,%r15
  call   <juxtaposition_horizontale@plt>
  lea    D45(%rip),%rdi
  mov    %rax,%r14
  call   <printf@plt>
  mov    $0x4,%edx
  mov    $0x8,%esi
  mov    %r15,%rdi
  call   <affiche_tab@plt>
  lea    D12(%rip),%rdi
  call   <printf@plt>
  mov    $0x4,%edx
  mov    $0x8,%esi
  mov    %r14,%rdi
  call   <affiche_tab@plt>
  lea    D41(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  nopl   0x0(%rax)
L16:
  mov    (%r15,%rax,1),%edx
  mov    %edx,(%r12,%rax,1)
  mov    (%r14,%rax,1),%edx
  mov    %edx,0x80(%r12,%rax,1)
  add    $0x4,%rax
  cmp    $0x80,%rax
  jne    L16
  mov    %r15,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D40
type_infered: string
name: retrieve_data
arguments: data_tag: D31
type_infered: string
name: retrieve_data
arguments: data_tag: D45
type_infered: string
name: retrieve_data
arguments: data_tag: D12
type_infered: string
name: retrieve_data
arguments: data_tag: D41
type_infered: string

tool: D40: temp1 


tool: D31:  
 temp2 
 

tool: D45: temp1 juxtap 


tool: D12:  
 temp2 juxtap 
 

tool: D41: fin temp 


assistant: ```c
uint8_t *juxtaposition_hv(uint8_t *bloc, uint8_t *out) {
  uint8_t *temp1 = malloc(32 * sizeof(uint8_t));
  uint8_t *temp1bis = malloc(32 * sizeof(uint8_t));
  uint8_t *temp2 = malloc(32 * sizeof(uint8_t));
  uint8_t *temp2bis = malloc(32 * sizeof(uint8_t));
  for (uint8_t i = 0; i < 32; i++) {
    temp1[i] = bloc[i];
    temp1bis[i] = bloc[i];
    temp2[i] = bloc[i + 32];
    temp2bis[i] = bloc[i + 32];
  }
  printf("temp1 \n");
  affiche_tab(temp1, 4, 8);
  printf(" \n temp2 \n ");
  affiche_tab(temp2, 4, 8);
  temp1 = juxtaposition_horizontale(temp1, temp1bis);
  temp2 = juxtaposition_horizontale(temp2, temp2bis);
  printf("temp1 juxtap \n");
  affiche_tab(temp1, 8, 4);
  printf(" \n temp2 juxtap \n ");
  affiche_tab(temp2, 8, 4);
  printf("fin temp \n");
  for (uint8_t i = 0; i < 32; i++) {
    out[i] = temp1[i];
    out[i + 32] = temp2[i];
  }
  free(temp1);
  free(temp2);
  free(temp1bis);
  free(temp2bis);
  return out;
}
```