user: 这段汇编代码用C语言表示是什么样的：

```asm
<implicit_precalc_2Dy>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  lea    0x0(,%r9,8),%ebp
  push   %rbx
  movslq %r9d,%rbx
  sub    $0x68,%rsp
  mov    0xa0(%rsp),%r14d
  mov    0xa8(%rsp),%r15d
  mov    %rdi,0x18(%rsp)
  mov    %ebp,%edi
  mov    %rsi,0x30(%rsp)
  mov    %rcx,0x38(%rsp)
  mov    %r9d,0x40(%rsp)
  movsd  %xmm0,0x50(%rsp)
  mov    %r14d,0x14(%rsp)
  mov    %r15d,0x44(%rsp)
  call   <malloc@plt>
  mov    %ebp,%edi
  mov    %rax,0x8(%rsp)
  call   <malloc@plt>
  mov    0x40(%rsp),%edi
  mov    %rax,(%rsp)
  call   <tridiag_malloc@plt>
  cmp    %r15d,%r14d
  mov    (%rsp),%rcx
  mov    0x8(%rsp),%rsi
  jge    L72
  mov    0x40(%rsp),%r9d
  lea    0x0(,%rbx,8),%rax
  mov    0x18(%rsp),%r10
  mov    %rax,0x48(%rsp)
  imul   %r9d,%r14d
  mov    %r9d,%r13d
  mov    %r10,0x8(%rsp)
  and    $0xfffffffe,%r13d
  movslq %r13d,%r15
  movslq %r14d,%rax
  shl    $0x3,%r15
  lea    0x0(,%rax,8),%r14
  mov    %rax,%rbp
  lea    0x8(%r12,%rax,8),%rax
  mov    %rax,0x28(%rsp)
  mov    %r9d,%eax
  lea    (%rsi,%r15,1),%r11
  add    %rcx,%r15
  shr    %eax
  lea    (%r10,%r14,1),%rbx
  mov    %r11,(%rsp)
  mov    %r14,%r10
  sub    $0x1,%eax
  mov    %r15,%r11
  mov    %r12,%r14
  mov    %r13d,%r15d
  add    $0x1,%rax
  mov    %ebp,%r13d
  mov    %rcx,%r12
  mov    %rsi,%rbp
  shl    $0x4,%rax
  mov    %rax,0x58(%rsp)
  nopl   (%rax)
L47:
  test   %r9d,%r9d
  jle    L22
  lea    0x8(%rbp),%rax
  lea    -0x1(%r9),%edx
  mov    0x28(%rsp),%rsi
  movsd  D4(%rip),%xmm0
  cmp    %rax,%r12
  divsd  0x50(%rsp),%xmm0
  setne  %al
  cmp    $0x1,%edx
  seta   %cl
  and    %eax,%ecx
  cmp    %rsi,%rbp
  setne  %al
  and    %ecx,%eax
  cmp    %rsi,%r12
  setne  %cl
  and    %ecx,%eax
  lea    0x8(%rbx),%rcx
  cmp    %rcx,%r12
  setne  %cl
  test   %cl,%al
  je     L35
  lea    0x10(%rbx),%rax
  cmp    %rax,%rbp
  lea    0x10(%rbp),%rax
  setae  %cl
  cmp    %rax,%rbx
  setae  %al
  or     %cl,%al
  je     L35
  movapd %xmm0,%xmm2
  mov    0x58(%rsp),%rcx
  lea    (%r14,%r10,1),%rdx
  xor    %eax,%eax
  unpcklpd %xmm2,%xmm2
  nopl   0x0(%rax,%rax,1)
L34:
  movupd (%rdx,%rax,1),%xmm1
  addpd  %xmm2,%xmm1
  movups %xmm1,0x0(%rbp,%rax,1)
  movupd (%rbx,%rax,1),%xmm1
  mulpd  %xmm2,%xmm1
  movups %xmm1,(%r12,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rcx
  jne    L34
  cmp    %r15d,%r9d
  je     L22
  lea    0x0(%r13,%r15,1),%eax
  mov    (%rsp),%rdi
  mov    0x8(%rsp),%rsi
  cltq
  movsd  (%r14,%rax,8),%xmm1
  addsd  %xmm0,%xmm1
  movsd  %xmm1,(%rdi)
  mulsd  (%rsi,%rax,8),%xmm0
  movsd  %xmm0,(%r11)
L22:
  mov    0x38(%rsp),%rax
  mov    %rbx,%r8
  mov    %r12,%rcx
  mov    %rbp,%rsi
  mov    %r11,0x20(%rsp)
  lea    (%rax,%r10,1),%rdx
  mov    0x30(%rsp),%rax
  mov    %r10,0x18(%rsp)
  mov    %r9d,0x40(%rsp)
  lea    (%rax,%r10,1),%rdi
  call   <tridiag_premalloc@plt>
  mov    0x48(%rsp),%rdi
  mov    0x40(%rsp),%r9d
  mov    0x18(%rsp),%r10
  addl   $0x1,0x14(%rsp)
  add    %rdi,0x28(%rsp)
  mov    0x14(%rsp),%eax
  add    %rdi,%rbx
  add    %r9d,%r13d
  add    %rdi,%r10
  cmp    %eax,0x44(%rsp)
  mov    0x20(%rsp),%r11
  jne    L47
  mov    %rbp,%rsi
  mov    %r12,%rcx
L72:
  xor    %eax,%eax
  mov    %rcx,0x8(%rsp)
  mov    %rsi,(%rsp)
  call   <tridiag_free@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
  mov    0x8(%rsp),%rdi
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1090 <free@plt>
  nopl   (%rax)
L35:
  xor    %eax,%eax
  lea    (%r14,%r10,1),%rsi
  cs nopw 0x0(%rax,%rax,1)
L62:
  movsd  (%rsi,%rax,8),%xmm1
  mov    %rax,%rcx
  addsd  %xmm0,%xmm1
  movsd  %xmm1,0x0(%rbp,%rax,8)
  movsd  (%rbx,%rax,8),%xmm1
  mulsd  %xmm0,%xmm1
  movsd  %xmm1,(%r12,%rax,8)
  add    $0x1,%rax
  cmp    %rdx,%rcx
  jne    L62
  jmp    L22
```

tool_calls: name: disassemble_data
arguments: label: D4
data_type: byte[8]

tool: {"D4": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

assistant: ```c
void implicit_precalc_2Dy(double *phi, double *ay, double *by, double *cy, double dt, int L, int M, int Lstart, int Lend) {
  int ii, jj;
  double *b = malloc(M * sizeof(*b));
  double *r = malloc(M * sizeof(*r));
  tridiag_malloc(M);
  for (ii = Lstart; ii < Lend; ii++) {
    for (jj = 0; jj < M; jj++) {
      b[jj] = by[ii * M + jj] + 1 / dt;
      r[jj] = 1 / dt * phi[ii * M + jj];
    }
    tridiag_premalloc(&ay[ii * M], b, &cy[ii * M], r, &phi[ii * M], M);
  }
  tridiag_free();
  free(b);
  free(r);
}
```