user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<line>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %esi,-0x28(%rbp)
  mov    %edx,-0x2c(%rbp)
  mov    %ecx,-0x30(%rbp)
  mov    -0x24(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jle    L272
  mov    -0x24(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x30(%rbp),%eax
  mov    %eax,-0x28(%rbp)
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x30(%rbp)
L272:
  mov    -0x2c(%rbp),%eax
  sub    -0x24(%rbp),%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x30(%rbp),%eax
  sub    -0x28(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  cmpl   $0x0,-0x14(%rbp)
  jne    L114
  mov    -0x28(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jle    L78
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x30(%rbp),%eax
  mov    %eax,-0x28(%rbp)
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x30(%rbp)
L78:
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x1c(%rbp)
  jmp    L156
L53:
  mov    -0x1c(%rbp),%edx
  mov    -0x24(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <pixel_on@plt>
  addl   $0x1,-0x1c(%rbp)
L156:
  mov    -0x1c(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jle    L53
  jmp    L226
L114:
  cmpl   $0x0,-0x10(%rbp)
  jne    L255
  mov    -0x24(%rbp),%eax
  mov    %eax,-0x1c(%rbp)
  jmp    L238
L183:
  mov    -0x28(%rbp),%edx
  mov    -0x1c(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <pixel_on@plt>
  addl   $0x1,-0x1c(%rbp)
L238:
  mov    -0x1c(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jl     L183
  jmp    L226
L255:
  mov    -0x10(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jge    L266
  cmpl   $0x0,-0x10(%rbp)
  jle    L266
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  sub    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x30(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%esi
  mov    -0x24(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0x1,%r8d
  mov    %eax,%edi
  call   <drawlinex@plt>
  add    $0x10,%rsp
  jmp    L226
L266:
  mov    -0x10(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jne    L137
  cmpl   $0x0,-0x10(%rbp)
  jle    L137
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  sub    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x30(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%esi
  mov    -0x24(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0x1,%r8d
  mov    %eax,%edi
  call   <drawlinex@plt>
  add    $0x10,%rsp
  jmp    L226
L137:
  mov    -0x10(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jle    L94
  cmpl   $0x0,-0x10(%rbp)
  jle    L94
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  sub    -0x10(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x14(%rbp),%eax
  sub    -0x10(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x30(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%esi
  mov    -0x24(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0x1,%r8d
  mov    %eax,%edi
  call   <drawliney@plt>
  add    $0x10,%rsp
  jmp    L226
L94:
  mov    -0x10(%rbp),%eax
  neg    %eax
  cmp    %eax,-0x14(%rbp)
  jle    L17
  cmpl   $0x0,-0x10(%rbp)
  jns    L17
  negl   -0x10(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  sub    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x30(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%esi
  mov    -0x24(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0xffffffff,%r8d
  mov    %eax,%edi
  call   <drawlinex@plt>
  add    $0x10,%rsp
  jmp    L226
L17:
  mov    -0x14(%rbp),%eax
  neg    %eax
  cmp    %eax,-0x10(%rbp)
  jne    L211
  cmpl   $0x0,-0x10(%rbp)
  jns    L211
  negl   -0x10(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  add    %eax,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  sub    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x30(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%esi
  mov    -0x24(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0xffffffff,%r8d
  mov    %eax,%edi
  call   <drawlinex@plt>
  add    $0x10,%rsp
  jmp    L226
L211:
  mov    -0x10(%rbp),%eax
  neg    %eax
  cmp    %eax,-0x14(%rbp)
  jge    L226
  cmpl   $0x0,-0x10(%rbp)
  jns    L226
  negl   -0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    $0x0,%eax
  sub    %edx,%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  sub    -0x10(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x14(%rbp),%eax
  sub    -0x10(%rbp),%eax
  mov    %eax,%edx
  mov    $0x0,%eax
  sub    %edx,%eax
  add    %eax,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%r8d
  mov    -0x28(%rbp),%ecx
  mov    -0x24(%rbp),%edx
  mov    -0x30(%rbp),%esi
  mov    -0x2c(%rbp),%eax
  mov    -0xc(%rbp),%edi
  push   %rdi
  mov    -0x4(%rbp),%edi
  push   %rdi
  mov    %r8d,%r9d
  mov    $0xffffffff,%r8d
  mov    %eax,%edi
  call   <drawliney@plt>
  add    $0x10,%rsp
  jmp    L226
L226:
  nop
  leave
  ret
```

assistant: ```c
void line(int x1, int y1, int x2, int y2) {
  int dx, dy, e, e_inc, e_noinc;
  int incdec, t, i;
  if (x1 > x2) {
    t = x1;
    x1 = x2;
    x2 = t;
    t = y1;
    y1 = y2;
    y2 = t;
  }
  dx = x2 - x1;
  dy = y2 - y1;
  if (dx == 0) {
    if (y1 > y2) {
      t = y1;
      y1 = y2;
      y2 = t;
    }
    for (i = y1; i <= y2; i++)
      pixel_on(x1, i);
  } else if (dy == 0) {
    for (i = x1; i < x2; i++)
      pixel_on(i, y1);
  } else if (dy < dx && dy > 0) {
    e_noinc = 2 * dy;
    e = 2 * dy - dx;
    e_inc = 2 * (dy - dx);
    drawlinex(x1, y1, x2, y2, 1, e, e_inc, e_noinc);
  } else if (dy == dx && dy > 0) {
    e_noinc = 2 * dy;
    e = 2 * dy - dx;
    e_inc = 2 * (dy - dx);
    drawlinex(x1, y1, x2, y2, 1, e, e_inc, e_noinc);
  } else if (dy > dx && dy > 0) {
    e_noinc = 2 * dx;
    e = 2 * dx - dy;
    e_inc = 2 * (dx - dy);
    drawliney(x1, y1, x2, y2, 1, e, e_inc, e_noinc);
  } else if (-dy < dx && dy < 0) {
    dy = -dy;
    e_noinc = 2 * dy;
    e = 2 * dy - dx;
    e_inc = 2 * (dy - dx);
    drawlinex(x1, y1, x2, y2, -1, e, e_inc, e_noinc);
  } else if (dy == -dx && dy < 0) {
    dy = -dy;
    e_noinc = (2 * dy);
    e = 2 * dy - dx;
    e_inc = 2 * (dy - dx);
    drawlinex(x1, y1, x2, y2, -1, e, e_inc, e_noinc);
  } else if (-dy > dx && dy < 0) {
    dx = -dx;
    e_noinc = -2 * dx;
    e = 2 * dx - dy;
    e_inc = -2 * (dx - dy);
    drawliney(x2, y2, x1, y1, -1, e, e_inc, e_noinc);
  }
}
```