user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<main>:
  endbr64
  push   %r12
  xor    %edx,%edx
  xor    %esi,%esi
  mov    $0x1,%edi
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r12
  call   <getflags@plt>
  mov    $0x10,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  xor    %edi,%edi
  call   <getflags@plt>
  mov    $0x10,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  xor    %edi,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %edi,%edi
  mov    $0x1,%esi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %edi,%edi
  mov    $0x1,%esi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  mov    $0xa,%esi
  mov    %eax,%r8d
  mov    $0xffffffff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x2,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  xor    %edi,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x8,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %edi,%edi
  mov    $0x14,%ecx
  mov    %r12,%rdx
  mov    %eax,%r8d
  mov    $0xa,%esi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  xor    %edi,%edi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  xor    %edi,%edi
  mov    %eax,%r8d
  mov    $0x10,%esi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x2,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %edi,%edi
  mov    $0x1,%esi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x8,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  xor    %edi,%edi
  mov    %eax,%r8d
  mov    $0xa,%esi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edx,%edx
  xor    %edi,%edi
  mov    $0x1,%esi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  xor    %edi,%edi
  mov    %eax,%r8d
  mov    $0x10,%esi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x2,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edi,%edi
  mov    $0x1,%edx
  mov    $0x1,%esi
  call   <getflags@plt>
  xor    %ecx,%ecx
  mov    %r12,%rdx
  mov    $0x8,%esi
  mov    %eax,%r8d
  xor    %edi,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <getflags@plt>
  mov    $0x14,%ecx
  mov    %r12,%rdx
  mov    $0x10,%esi
  mov    %eax,%r8d
  mov    $0xff,%edi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  xor    %edi,%edi
  mov    $0x1,%edx
  mov    $0x1,%esi
  call   <getflags@plt>
  mov    $0xff,%edi
  mov    $0x14,%ecx
  mov    %r12,%rdx
  mov    %eax,%r8d
  mov    $0x10,%esi
  call   <numberToString@plt>
  mov    %eax,%edi
  call   <puts@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L1
  add    $0x30,%rsp
  xor    %eax,%eax
  pop    %r12
  ret
L1:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main(void) {
  int testint;
  unsigned testuint;
  int64_t testint64;
  uint64_t testuint64;
  char buffer[32];
  testint = 0xFFFFFFFF;
  testuint = 0xFFFFFFFF;
  testint64 = 0xFFFFFFFFFFFFFFFFL;
  testuint64 = 0xFFFFFFFFFFFFFFFFUL;
  int base = 10;
  int pad = 0;
  int lowerhex = 0;
  puts(numberToString((int64_t)testint, base, buffer, 16, getflags(1, pad, lowerhex)));
  puts(numberToString(testint64, base, buffer, 0, getflags(1, pad, lowerhex)));
  puts(numberToString((uint64_t)testuint, base, buffer, 16, getflags(0, pad, lowerhex)));
  puts(numberToString(testuint64, base, buffer, 0, getflags(0, pad, lowerhex)));
  pad = 1;
  puts(numberToString((int64_t)testint, base, buffer, 0, getflags(1, pad, lowerhex)));
  puts(numberToString(testint64, base, buffer, 20, getflags(1, pad, lowerhex)));
  puts(numberToString((uint64_t)testuint, base, buffer, 0, getflags(0, pad, lowerhex)));
  puts(numberToString(testuint64, base, buffer, 20, getflags(0, pad, lowerhex)));
  pad = 0;
  puts(numberToString((int64_t)0, 2, buffer, 0, getflags(1, pad, lowerhex)));
  puts(numberToString((uint64_t)0, 8, buffer, 0, getflags(0, pad, lowerhex)));
  puts(numberToString(0, 10, buffer, 20, getflags(1, pad, lowerhex)));
  puts(numberToString(0, 16, buffer, 20, getflags(0, pad, lowerhex)));
  pad = 1;
  puts(numberToString((int64_t)0, 2, buffer, 0, getflags(1, pad, lowerhex)));
  puts(numberToString((uint64_t)0, 8, buffer, 0, getflags(0, pad, lowerhex)));
  puts(numberToString(0, 10, buffer, 20, getflags(1, pad, lowerhex)));
  puts(numberToString(0, 16, buffer, 20, getflags(0, pad, lowerhex)));
  pad = 1;
  lowerhex = 1;
  puts(numberToString((int64_t)0, 2, buffer, 0, getflags(1, pad, lowerhex)));
  puts(numberToString((uint64_t)0, 8, buffer, 0, getflags(0, pad, lowerhex)));
  puts(numberToString(0xff, 16, buffer, 20, getflags(1, pad, lowerhex)));
  puts(numberToString(0xff, 16, buffer, 20, getflags(0, pad, lowerhex)));
  return 0;
}
```