user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %r15
  mov    $0x14,%esi
  mov    $0x1,%edi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xc8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xb8(%rsp)
  xor    %eax,%eax
  call   <vector@plt>
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,0x10(%rsp)
  call   <vector@plt>
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,%r15
  call   <vector@plt>
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,%rbp
  call   <matrix@plt>
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,0x20(%rsp)
  call   <matrix@plt>
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,0x30(%rsp)
  call   <matrix@plt>
  mov    $0x14,%ecx
  mov    $0x1,%edx
  mov    $0x14,%esi
  mov    $0x1,%edi
  mov    %rax,0x18(%rsp)
  call   <matrix@plt>
  lea    D44(%rip),%rsi
  lea    D99(%rip),%rdi
  mov    %rax,0x28(%rsp)
  call   <fopen@plt>
  mov    %rax,%r14
  test   %rax,%rax
  je     L68
L16:
  mov    %r14,%rdi
  mov    0x30(%rsp),%r12
  lea    D136(%rip),%r13
  call   <feof@plt>
  test   %eax,%eax
  jne    L303
L192:
  lea    0x60(%rsp),%rax
  mov    %r14,%rdx
  mov    $0x50,%esi
  mov    %rax,%rbx
  mov    %rax,%rdi
  mov    %rax,0x8(%rsp)
  call   <fgets@plt>
  mov    %r14,%rdx
  mov    $0x50,%esi
  mov    %rbx,%rdi
  call   <fgets@plt>
  lea    0x58(%rsp),%rcx
  mov    %r14,%rdi
  xor    %eax,%eax
  lea    0x5c(%rsp),%rdx
  lea    D9(%rip),%rsi
  call   <fscanf@plt>
  mov    %r14,%rdx
  mov    $0x50,%esi
  mov    %rbx,%rdi
  call   <fgets@plt>
  mov    0x5c(%rsp),%r9d
  test   %r9d,%r9d
  jle    L292
  mov    0x20(%rsp),%rax
  mov    %rbp,0x40(%rsp)
  mov    %r12,0x48(%rsp)
  lea    0x8(%rax),%rbx
  mov    $0x1,%eax
  mov    %r15,0x38(%rsp)
  mov    %eax,%r15d
  nopl   (%rax)
L207:
  mov    $0x4,%r12d
  mov    $0x1,%ebp
  nopl   0x0(%rax,%rax,1)
L291:
  mov    (%rbx),%rdx
  lea    D87(%rip),%rsi
  mov    %r14,%rdi
  xor    %eax,%eax
  add    $0x1,%ebp
  add    %r12,%rdx
  add    $0x4,%r12
  call   <fscanf@plt>
  mov    0x5c(%rsp),%eax
  cmp    %ebp,%eax
  jge    L291
  add    $0x1,%r15d
  add    $0x8,%rbx
  cmp    %r15d,%eax
  jge    L207
  mov    0x38(%rsp),%r15
  mov    0x40(%rsp),%rbp
  mov    0x48(%rsp),%r12
L292:
  mov    0x8(%rsp),%rdi
  mov    $0x50,%esi
  mov    %r14,%rdx
  call   <fgets@plt>
  mov    0x58(%rsp),%r8d
  mov    0x5c(%rsp),%esi
  test   %r8d,%r8d
  jle    L8
  mov    %rbp,0x38(%rsp)
  mov    $0x1,%eax
  mov    $0x4,%ebx
  mov    %r15,0x8(%rsp)
  mov    %eax,%r15d
  nopl   0x0(%rax)
L114:
  mov    $0x1,%ebp
  test   %esi,%esi
  jle    L224
  nopl   0x0(%rax)
L52:
  mov    (%r12,%rbp,8),%rdx
  lea    D87(%rip),%rsi
  mov    %r14,%rdi
  xor    %eax,%eax
  add    $0x1,%rbp
  add    %rbx,%rdx
  call   <fscanf@plt>
  mov    0x5c(%rsp),%esi
  cmp    %ebp,%esi
  jge    L52
L224:
  add    $0x1,%r15d
  add    $0x4,%rbx
  cmp    %r15d,0x58(%rsp)
  jge    L114
  mov    0x8(%rsp),%r15
  mov    0x38(%rsp),%rbp
L8:
  lea    0x1(%rsi),%edx
  mov    $0x1,%r8d
  test   %esi,%esi
  jle    L108
  mov    0x20(%rsp),%r9
  mov    0x18(%rsp),%r10
  nopl   0x0(%rax)
L160:
  mov    (%r9,%r8,8),%rdi
  mov    (%r10,%r8,8),%rcx
  mov    $0x1,%eax
  nopl   (%rax)
L0:
  movss  (%rdi,%rax,4),%xmm0
  movss  %xmm0,(%rcx,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L0
  add    $0x1,%r8
  cmp    %r8,%rdx
  jne    L160
L108:
  mov    0x28(%rsp),%r8
  mov    0x10(%rsp),%rcx
  mov    %esi,%edx
  mov    0x18(%rsp),%rdi
  call   <svdcmp@plt>
  mov    0x5c(%rsp),%edx
  test   %edx,%edx
  jle    L297
  mov    0x10(%rsp),%rbx
  sub    $0x1,%edx
  pxor   %xmm0,%xmm0
  lea    0x4(%rbx),%rax
  lea    0x8(%rbx,%rdx,4),%rcx
  mov    %rax,%rdx
  nopw   0x0(%rax,%rax,1)
L14:
  movss  (%rdx),%xmm1
  add    $0x4,%rdx
  maxss  %xmm0,%xmm1
  movaps %xmm1,%xmm0
  cmp    %rdx,%rcx
  jne    L14
  pxor   %xmm0,%xmm0
  cvtss2sd %xmm1,%xmm0
  mulsd  D5(%rip),%xmm0
  cvtsd2ss %xmm0,%xmm0
L102:
  comiss (%rax),%xmm0
  jbe    L238
  movl   $0x0,(%rax)
L238:
  add    $0x4,%rax
  cmp    %rax,%rcx
  jne    L102
L297:
  mov    0x58(%rsp),%edi
  movl   $0x1,0x8(%rsp)
  mov    $0x4,%ebx
  test   %edi,%edi
  jle    L281
  mov    %r14,0x38(%rsp)
  nopw   0x0(%rax,%rax,1)
L4:
  mov    0x8(%rsp),%esi
  lea    D50(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x5c(%rsp),%ecx
  mov    $0x1,%eax
  lea    0x1(%rcx),%esi
  test   %ecx,%ecx
  jle    L50
  nopw   0x0(%rax,%rax,1)
L286:
  mov    (%r12,%rax,8),%rdx
  movss  (%rdx,%rbx,1),%xmm0
  movss  %xmm0,0x0(%rbp,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%rsi
  jne    L286
L50:
  sub    $0x8,%rsp
  mov    %ecx,%r8d
  mov    %rbp,%r9
  mov    $0x1,%r14d
  push   %r15
  mov    0x20(%rsp),%rsi
  mov    0x38(%rsp),%rdx
  mov    0x28(%rsp),%rdi
  call   <svbksb@plt>
  lea    D69(%rip),%rdi
  call   <puts@plt>
  pop    %rdx
  pop    %rcx
  mov    0x5c(%rsp),%esi
  test   %esi,%esi
  jle    L10
  nopl   0x0(%rax)
L84:
  pxor   %xmm0,%xmm0
  mov    %r13,%rdi
  mov    $0x1,%eax
  cvtss2sd (%r15,%r14,4),%xmm0
  call   <printf@plt>
  add    $0x1,%r14
  cmp    %r14d,0x5c(%rsp)
  jge    L84
L10:
  lea    D93(%rip),%rdi
  mov    $0x1,%r14d
  call   <puts@plt>
  mov    0x5c(%rsp),%eax
  test   %eax,%eax
  jle    L95
  nopl   0x0(%rax)
L6:
  pxor   %xmm0,%xmm0
  mov    %r13,%rdi
  mov    $0x1,%eax
  cvtss2sd 0x0(%rbp,%r14,4),%xmm0
  call   <printf@plt>
  add    $0x1,%r14
  cmp    %r14d,0x5c(%rsp)
  jge    L6
L95:
  lea    D105(%rip),%rdi
  call   <puts@plt>
  mov    0x5c(%rsp),%eax
  test   %eax,%eax
  jle    L133
  mov    0x20(%rsp),%rdi
  sub    $0x1,%eax
  lea    0x4(%rbp),%rdx
  lea    0x8(%rbp,%rax,4),%r8
  lea    0x2(%rax),%rsi
  add    $0x8,%rdi
  nopl   0x0(%rax)
L156:
  movl   $0x0,(%rdx)
  mov    (%rdi),%rcx
  mov    $0x1,%eax
  pxor   %xmm1,%xmm1
  nopw   0x0(%rax,%rax,1)
L63:
  movss  (%rcx,%rax,4),%xmm0
  mulss  (%r15,%rax,4),%xmm0
  add    $0x1,%rax
  addss  %xmm0,%xmm1
  movss  %xmm1,(%rdx)
  cmp    %rax,%rsi
  jne    L63
  add    $0x4,%rdx
  add    $0x8,%rdi
  cmp    %rdx,%r8
  jne    L156
  mov    $0x1,%r14d
  nopw   0x0(%rax,%rax,1)
L134:
  pxor   %xmm0,%xmm0
  mov    %r13,%rdi
  mov    $0x1,%eax
  cvtss2sd 0x0(%rbp,%r14,4),%xmm0
  call   <printf@plt>
  add    $0x1,%r14
  cmp    %r14d,0x5c(%rsp)
  jge    L134
L133:
  mov    $0xa,%edi
  add    $0x4,%rbx
  call   <putchar@plt>
  addl   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%eax
  cmp    %eax,0x58(%rsp)
  jge    L4
  mov    0x38(%rsp),%r14
L281:
  lea    D115(%rip),%rdi
  call   <puts@plt>
  lea    D66(%rip),%rdi
  call   <puts@plt>
  xor    %eax,%eax
  call   <getchar@plt>
  mov    %r14,%rdi
  call   <feof@plt>
  test   %eax,%eax
  je     L192
L303:
  mov    %r14,%rdi
  call   <fclose@plt>
  mov    0x28(%rsp),%rdi
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  call   <free_matrix@plt>
  mov    0x18(%rsp),%rdi
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  call   <free_matrix@plt>
  mov    0x30(%rsp),%rdi
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  call   <free_matrix@plt>
  mov    0x20(%rsp),%rdi
  mov    $0x14,%r8d
  mov    $0x1,%ecx
  mov    $0x14,%edx
  mov    $0x1,%esi
  call   <free_matrix@plt>
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    %rbp,%rdi
  call   <free_vector@plt>
  mov    $0x14,%edx
  mov    $0x1,%esi
  mov    %r15,%rdi
  call   <free_vector@plt>
  mov    0x10(%rsp),%rdi
  mov    $0x14,%edx
  mov    $0x1,%esi
  call   <free_vector@plt>
  mov    0xb8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L280
  add    $0xc8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L68:
  lea    D52(%rip),%rdi
  call   <nrerror@plt>
  jmp    L16
L280:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: tag: D44
type_guessed: string
name: read_data
arguments: tag: D99
type_guessed: string
name: read_data
arguments: tag: D136
type_guessed: string
name: read_data
arguments: tag: D9
type_guessed: string
name: read_data
arguments: tag: D87
type_guessed: string
name: read_data
arguments: tag: D5
type_guessed: byte[8]
name: read_data
arguments: tag: D50
type_guessed: string
name: read_data
arguments: tag: D69
type_guessed: string
name: read_data
arguments: tag: D93
type_guessed: string
name: read_data
arguments: tag: D105
type_guessed: string
name: read_data
arguments: tag: D115
type_guessed: string
name: read_data
arguments: tag: D66
type_guessed: string
name: read_data
arguments: tag: D52
type_guessed: string

tool: D44: r

tool: D99: matrx1.dat

tool: D136: %12.6f

tool: D9: %d %d 

tool: D87: %f 

tool: {"D5": [0x8d,0xed,0xb5,0xa0,0xf7,0xc6,0xb0,0x3e]}

tool: D50: 
Vector number %2d


tool: D69:  solution vector is:

tool: D93: 
 original right-hand side vector:

tool: D105: 
 (matrix)*(sol'n vector):

tool: D115: ***********************************

tool: D66: press RETURN for next problem

tool: D52: Data file matrx1.dat not found


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;
}
```