user: 请从给定的汇编指令推导出C源代码：

```asm
<getDay>:
  endbr64
  push   %rbp
  xor    %edi,%edi
  call   <sceKernelLibcTime@plt>
  lea    -0x41d5e800(%rax),%ecx
  movslq %ecx,%rdx
  imul   $0xffffffffc22e4507,%rdx,%rdx
  shr    $0x20,%rdx
  add    %ecx,%edx
  sar    $0x1f,%ecx
  sar    $0x10,%edx
  sub    %ecx,%edx
  cmp    $0x420017ff,%eax
  jg     L191
  mov    $0x1f,%ebp
  sub    %edx,%ebp
L101:
  mov    %ebp,%edi
  pop    %rbp
  jmp    1070 <convertTOchar@plt>
L191:
  lea    -0x20(%rdx),%eax
  cmp    $0x1b,%eax
  ja     L0
  mov    $0x3b,%ebp
  sub    %edx,%ebp
  mov    %ebp,%edi
  pop    %rbp
  jmp    1070 <convertTOchar@plt>
  nopw   0x0(%rax,%rax,1)
L0:
  lea    -0x3c(%rdx),%eax
  cmp    $0x1e,%eax
  jbe    L193
  lea    -0x5b(%rdx),%eax
  cmp    $0x1d,%eax
  ja     L117
  mov    $0x78,%ebp
  sub    %edx,%ebp
  jmp    L101
  nopl   0x0(%rax)
L193:
  mov    $0x5a,%ebp
  sub    %edx,%ebp
  mov    %ebp,%edi
  pop    %rbp
  jmp    1070 <convertTOchar@plt>
  nop
L117:
  lea    -0x79(%rdx),%eax
  cmp    $0x1e,%eax
  jbe    L6
  lea    -0x98(%rdx),%eax
  cmp    $0x1d,%eax
  ja     L2
  mov    $0xb5,%ebp
  sub    %edx,%ebp
  jmp    L101
  nopl   0x0(%rax)
L6:
  mov    $0x97,%ebp
  sub    %edx,%ebp
  jmp    L101
  nopl   0x0(%rax)
L2:
  lea    -0xb6(%rdx),%eax
  cmp    $0x1e,%eax
  ja     L65
  mov    $0xd4,%ebp
  sub    %edx,%ebp
  jmp    L101
L65:
  lea    -0xd5(%rdx),%eax
  cmp    $0x1e,%eax
  ja     L93
  mov    $0xf3,%ebp
  sub    %edx,%ebp
  jmp    L101
L93:
  lea    -0xf4(%rdx),%eax
  cmp    $0x1d,%eax
  ja     L110
  mov    $0x111,%ebp
  sub    %edx,%ebp
  jmp    L101
L110:
  lea    -0x112(%rdx),%eax
  cmp    $0x1e,%eax
  ja     L133
  mov    $0x130,%ebp
  sub    %edx,%ebp
  jmp    L101
L133:
  lea    -0x131(%rdx),%eax
  cmp    $0x1d,%eax
  ja     L86
  mov    $0x14e,%ebp
  sub    %edx,%ebp
  jmp    L101
L86:
  lea    -0x14f(%rdx),%eax
  cmp    $0x1e,%eax
  ja     L101
  mov    $0x16d,%ebp
  sub    %edx,%ebp
  jmp    L101
```

assistant: ```c
char *getDay() {
  int tempy = sceKernelLibcTime((void *)0);
  int days_this_year = (tempy - 1104537600) / (24 * 60 * 60);
  int day_of_month;
  static char *day;
  if (days_this_year <= 31) {
    day_of_month = 31 - days_this_year;
  } else if (days_this_year > 31 && days_this_year <= 59) {
    day_of_month = 59 - days_this_year;
  } else if (days_this_year > 59 && days_this_year <= 90) {
    day_of_month = 90 - days_this_year;
  } else if (days_this_year > 90 && days_this_year <= 120) {
    day_of_month = 120 - days_this_year;
  } else if (days_this_year > 120 && days_this_year <= 151) {
    day_of_month = 151 - days_this_year;
  } else if (days_this_year > 151 && days_this_year <= 181) {
    day_of_month = 181 - days_this_year;
  } else if (days_this_year > 181 && days_this_year <= 212) {
    day_of_month = 212 - days_this_year;
  } else if (days_this_year > 212 && days_this_year <= 243) {
    day_of_month = 243 - days_this_year;
  } else if (days_this_year > 243 && days_this_year <= 273) {
    day_of_month = 273 - days_this_year;
  } else if (days_this_year > 273 && days_this_year <= 304) {
    day_of_month = 304 - days_this_year;
  } else if (days_this_year > 304 && days_this_year <= 334) {
    day_of_month = 334 - days_this_year;
  } else if (days_this_year > 334 && days_this_year <= 365) {
    day_of_month = 365 - days_this_year;
  }
  day = convertTOchar(day_of_month);
  return day;
}
```