user: 这段汇编代码用C语言表示是什么样的:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xb8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xa8(%rsp)
  xor    %eax,%eax
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <vector@plt>
  mov    %rax,0x10(%rsp)
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <vector@plt>
  mov    %rax,%r15
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <vector@plt>
  mov    %rax,%r14
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <matrix@plt>
  mov    %rax,0x20(%rsp)
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <matrix@plt>
  mov    %rax,%r13
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <matrix@plt>
  mov    %rax,0x18(%rsp)
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  call   <matrix@plt>
  mov    %rax,0x28(%rsp)
  lea    D121(%rip),%rsi
  lea    D4(%rip),%rdi
  call   <fopen@plt>
  mov    %rax,0x30(%rsp)
  test   %rax,%rax
  jne    L188
  lea    D114(%rip),%rdi
  call   <nrerror@plt>
  jmp    L188
L382:
  mov    %rbp,%rdx
  add    (%r12),%rdx
  lea    D112(%rip),%rsi
  mov    %r14,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  add    $0x1,%ebx
  add    $0x4,%rbp
  cmp    %ebx,0x4c(%rsp)
  jge    L382
L213:
  add    $0x1,%r15d
  add    $0x8,%r12
  cmp    %r15d,0x4c(%rsp)
  jl     L289
L301:
  mov    $0x4,%ebp
  mov    $0x1,%ebx
  cmpl   $0x0,0x4c(%rsp)
  jg     L382
  jmp    L213
L289:
  mov    0x8(%rsp),%r15
  mov    0x38(%rsp),%r14
L342:
  lea    0x50(%rsp),%rdi
  mov    0x30(%rsp),%rdx
  mov    $0x50,%esi
  call   <fgets@plt>
  mov    $0x4,%ebp
  mov    $0x1,%r12d
  cmpl   $0x0,0x48(%rsp)
  jle    L255
  mov    %r15,0x8(%rsp)
  mov    0x30(%rsp),%r15
  jmp    L98
L238:
  mov    %rbp,%rdx
  add    0x0(%r13,%rbx,8),%rdx
  lea    D112(%rip),%rsi
  mov    %r15,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x4c(%rsp)
  jge    L238
L283:
  add    $0x1,%r12d
  add    $0x4,%rbp
  cmp    %r12d,0x48(%rsp)
  jl     L352
L98:
  mov    $0x1,%ebx
  cmpl   $0x0,0x4c(%rsp)
  jg     L238
  jmp    L283
L352:
  mov    0x8(%rsp),%r15
L255:
  mov    0x4c(%rsp),%eax
  test   %eax,%eax
  jle    L174
  mov    0x20(%rsp),%rax
  lea    0x8(%rax),%rdi
  mov    0x18(%rsp),%rax
  lea    0x8(%rax),%rsi
  mov    $0x1,%r8d
  jmp    L344
L75:
  mov    (%rdi),%rcx
  movss  (%rcx,%rax,1),%xmm0
  mov    (%rsi),%rcx
  movss  %xmm0,(%rcx,%rax,1)
  add    $0x1,%edx
  add    $0x4,%rax
  cmp    %edx,0x4c(%rsp)
  jge    L75
L296:
  add    $0x1,%r8d
  mov    0x4c(%rsp),%eax
  add    $0x8,%rdi
  add    $0x8,%rsi
  cmp    %r8d,%eax
  jl     L174
L344:
  mov    $0x4,%eax
  mov    $0x1,%edx
  cmpl   $0x0,0x4c(%rsp)
  jg     L75
  jmp    L296
L174:
  mov    0x28(%rsp),%r8
  mov    0x10(%rsp),%rbx
  mov    %rbx,%rcx
  mov    %eax,%edx
  mov    %eax,%esi
  mov    0x18(%rsp),%rdi
  call   <svdcmp@plt>
  mov    0x4c(%rsp),%edx
  test   %edx,%edx
  jle    L236
  lea    0x4(%rbx),%rax
  lea    -0x1(%rdx),%edx
  lea    0x8(%rbx,%rdx,4),%rdx
  pxor   %xmm0,%xmm0
L317:
  movss  (%rax),%xmm1
  maxss  %xmm0,%xmm1
  movaps %xmm1,%xmm0
  add    $0x4,%rax
  cmp    %rdx,%rax
  jne    L317
  pxor   %xmm0,%xmm0
  cvtss2sd %xmm1,%xmm0
  mulsd  D19(%rip),%xmm0
  cvtsd2ss %xmm0,%xmm0
  mov    $0x1,%eax
  mov    0x10(%rsp),%rdx
  jmp    L404
L261:
  add    $0x1,%rax
  cmp    %eax,0x4c(%rsp)
  jl     L236
L404:
  comiss (%rdx,%rax,4),%xmm0
  jbe    L261
  movl   $0x0,(%rdx,%rax,4)
  jmp    L261
L236:
  cmpl   $0x0,0x48(%rsp)
  jle    L252
  mov    $0x4,%r12d
  movl   $0x1,0x8(%rsp)
  lea    D52(%rip),%rbp
L113:
  mov    0x8(%rsp),%esi
  lea    D0(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x4c(%rsp),%ecx
  test   %ecx,%ecx
  jle    L97
  mov    $0x1,%eax
L270:
  mov    0x0(%r13,%rax,8),%rdx
  movss  (%rdx,%r12,1),%xmm0
  movss  %xmm0,(%r14,%rax,4)
  mov    0x4c(%rsp),%ecx
  add    $0x1,%rax
  cmp    %eax,%ecx
  jge    L270
L97:
  sub    $0x8,%rsp
  push   %r15
  mov    %r14,%r9
  mov    %ecx,%r8d
  mov    0x38(%rsp),%rdx
  mov    0x20(%rsp),%rsi
  mov    0x28(%rsp),%rdi
  call   <svbksb@plt>
  lea    D81(%rip),%rdi
  call   <puts@plt>
  add    $0x10,%rsp
  cmpl   $0x0,0x4c(%rsp)
  jle    L55
  mov    $0x1,%ebx
L297:
  pxor   %xmm0,%xmm0
  cvtss2sd (%r15,%rbx,4),%xmm0
  mov    %rbp,%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x4c(%rsp)
  jge    L297
L55:
  lea    D64(%rip),%rdi
  call   <puts@plt>
  cmpl   $0x0,0x4c(%rsp)
  jle    L179
  mov    $0x1,%ebx
L247:
  pxor   %xmm0,%xmm0
  cvtss2sd (%r14,%rbx,4),%xmm0
  mov    %rbp,%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x4c(%rsp)
  jge    L247
L179:
  lea    D136(%rip),%rdi
  call   <puts@plt>
  cmpl   $0x0,0x4c(%rsp)
  jle    L302
  lea    0x4(%r14),%rdi
  mov    0x20(%rsp),%rax
  lea    0x8(%rax),%rsi
  mov    $0x1,%r8d
L381:
  mov    %rdi,%rdx
  movl   $0x0,(%rdi)
  cmpl   $0x0,0x4c(%rsp)
  jle    L196
  mov    $0x1,%eax
L189:
  mov    (%rsi),%rcx
  movss  (%rcx,%rax,4),%xmm0
  mulss  (%r15,%rax,4),%xmm0
  addss  (%rdx),%xmm0
  movss  %xmm0,(%rdx)
  add    $0x1,%rax
  cmp    %eax,0x4c(%rsp)
  jge    L189
L196:
  add    $0x1,%r8d
  mov    0x4c(%rsp),%eax
  add    $0x4,%rdi
  add    $0x8,%rsi
  cmp    %r8d,%eax
  jge    L381
  test   %eax,%eax
  jle    L302
  mov    $0x1,%ebx
L190:
  pxor   %xmm0,%xmm0
  cvtss2sd (%r14,%rbx,4),%xmm0
  mov    %rbp,%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x4c(%rsp)
  jge    L190
L302:
  mov    $0xa,%edi
  call   <putchar@plt>
  addl   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%eax
  add    $0x4,%r12
  cmp    %eax,0x48(%rsp)
  jge    L113
L252:
  lea    D128(%rip),%rdi
  call   <puts@plt>
  lea    D23(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
L188:
  mov    0x30(%rsp),%rdi
  call   <feof@plt>
  test   %eax,%eax
  jne    L61
  lea    0x50(%rsp),%rbx
  mov    0x30(%rsp),%rbp
  mov    %rbp,%rdx
  mov    $0x50,%esi
  mov    %rbx,%rdi
  call   <fgets@plt>
  mov    %rbp,%rdx
  mov    $0x50,%esi
  mov    %rbx,%rdi
  call   <fgets@plt>
  lea    0x48(%rsp),%rcx
  lea    0x4c(%rsp),%rdx
  lea    D131(%rip),%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  mov    %rbp,%rdx
  mov    $0x50,%esi
  mov    %rbx,%rdi
  call   <fgets@plt>
  cmpl   $0x0,0x4c(%rsp)
  jle    L342
  mov    0x20(%rsp),%rax
  lea    0x8(%rax),%r12
  mov    $0x1,%eax
  mov    %r15,0x8(%rsp)
  mov    %r14,0x38(%rsp)
  mov    %rbp,%r14
  mov    %eax,%r15d
  jmp    L301
L61:
  mov    0x30(%rsp),%rdi
  call   <fclose@plt>
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    0x28(%rsp),%rdi
  call   <free_matrix@plt>
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    0x18(%rsp),%rdi
  call   <free_matrix@plt>
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    %r13,%rdi
  call   <free_matrix@plt>
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    0x20(%rsp),%rdi
  call   <free_matrix@plt>
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    %r14,%rdi
  call   <free_vector@plt>
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    %r15,%rdi
  call   <free_vector@plt>
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    0x10(%rsp),%rdi
  call   <free_vector@plt>
  mov    0xa8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L200
  mov    $0x0,%eax
  add    $0xb8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L200:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D121
data_type: string
name: unpack_data
arguments: data_label: D4
data_type: string
name: unpack_data
arguments: data_label: D114
data_type: string
name: unpack_data
arguments: data_label: D112
data_type: string
name: unpack_data
arguments: data_label: D19
data_type: byte[8]
name: unpack_data
arguments: data_label: D52
data_type: string
name: unpack_data
arguments: data_label: D0
data_type: string
name: unpack_data
arguments: data_label: D81
data_type: string
name: unpack_data
arguments: data_label: D64
data_type: string
name: unpack_data
arguments: data_label: D136
data_type: string
name: unpack_data
arguments: data_label: D128
data_type: string
name: unpack_data
arguments: data_label: D23
data_type: string
name: unpack_data
arguments: data_label: D131
data_type: string

tool: D121: r

tool: D4: matrx1.dat

tool: D114: Data file matrx1.dat not found


tool: D112: %f 

tool: {"D19": [0x8d,0xed,0xb5,0xa0,0xf7,0xc6,0xb0,0x3e]}

tool: D52: %12.6f

tool: D0: 
Vector number %2d


tool: D81:  solution vector is:

tool: D64: 
 original right-hand side vector:

tool: D136: 
 (matrix)*(sol'n vector):

tool: D128: ***********************************

tool: D23: press RETURN for next problem

tool: D131: %d %d 

assistant: ```c
int main(void) {
  int j, k, l, m, n;
  float wmax, wmin, *w, *x, *c;
  float **a, **b, **u, **v;
  char dummy[80];
  FILE *fp;
  w = vector(1, 20);
  x = vector(1, 20);
  c = vector(1, 20);
  a = matrix(1, 20, 1, 20);
  b = matrix(1, 20, 1, 20);
  u = matrix(1, 20, 1, 20);
  v = matrix(1, 20, 1, 20);
  if ((fp = fopen("matrx1.dat", "r")) == NULL)
    nrerror("Data file matrx1.dat not found\n");
  while (!feof(fp)) {
    fgets(dummy, 80, fp);
    fgets(dummy, 80, fp);
    fscanf(fp, "%d %d ", &n, &m);
    fgets(dummy, 80, fp);
    for (k = 1; k <= n; k++)
      for (l = 1; l <= n; l++)
        fscanf(fp, "%f ", &a[k][l]);
    fgets(dummy, 80, fp);
    for (l = 1; l <= m; l++)
      for (k = 1; k <= n; k++)
        fscanf(fp, "%f ", &b[k][l]);
    for (k = 1; k <= n; k++)
      for (l = 1; l <= n; l++)
        u[k][l] = a[k][l];
    svdcmp(u, n, n, w, v);
    wmax = 0.0;
    for (k = 1; k <= n; k++)
      if (w[k] > wmax)
        wmax = w[k];
    wmin = wmax * (1.0e-6);
    for (k = 1; k <= n; k++)
      if (w[k] < wmin)
        w[k] = 0.0;
    for (l = 1; l <= m; l++) {
      printf("\nVector number %2d\n", l);
      for (k = 1; k <= n; k++)
        c[k] = b[k][l];
      svbksb(u, w, v, n, n, c, x);
      printf(" solution vector is:\n");
      for (k = 1; k <= n; k++)
        printf("%12.6f", x[k]);
      printf("\n original right-hand side vector:\n");
      for (k = 1; k <= n; k++)
        printf("%12.6f", c[k]);
      printf("\n (matrix)*(sol'n vector):\n");
      for (k = 1; k <= n; k++) {
        c[k] = 0.0;
        for (j = 1; j <= n; j++)
          c[k] += a[k][j] * x[j];
      }
      for (k = 1; k <= n; k++)
        printf("%12.6f", c[k]);
      printf("\n");
    }
    printf("***********************************\n");
    printf("press RETURN for next problem\n");
    (void)getchar();
  }
  fclose(fp);
  free_matrix(v, 1, 20, 1, 20);
  free_matrix(u, 1, 20, 1, 20);
  free_matrix(b, 1, 20, 1, 20);
  free_matrix(a, 1, 20, 1, 20);
  free_vector(c, 1, 20);
  free_vector(x, 1, 20);
  free_vector(w, 1, 20);
  return 0;
}
```