[PATCH v3 0/4] MR375: ntdll: Fixes for runtime 64-bit shift functions.

Jinoh Kang (@iamahuman) wine at gitlab.winehq.org
Thu Jul 7 06:58:04 CDT 2022


Jinoh Kang (@iamahuman) commented about dlls/ntdll/tests/large_int.c:
>      LONGLONG l;
>  
> +    static const BYTE call_shift_code[] =
> +    {
> +        0x55,                           /* pushl %ebp */
> +        0x89, 0xe5,                     /* movl %esp,%ebp */
> +        0x31, 0xc0,                     /* xorl %eax,%eax */
> +        0x31, 0xd2,                     /* xorl %edx,%edx */
> +        0x31, 0xc9,                     /* xorl %ecx,%ecx */
> +        0x87, 0x45, 0x0c,               /* xchgl 12(%ebp),%eax */
> +        0x87, 0x55, 0x10,               /* xchgl 16(%ebp),%edx */
> +        0x87, 0x4d, 0x14,               /* xchgl 20(%ebp),%ecx */
> +        0xff, 0x55, 0x08,               /* call *8(%ebp) */
> +        0x39, 0xe5,                     /* cmpl %esp,%ebp */
> +        0x75, 0x05,                     /* jne 1f */
> +        0xb9, 0xef, 0xbe, 0xad, 0xde,   /* movl $0xdeadbeef,%ecx */
This won't affect the test outcome.  How about:

```suggestion:-1+0
        0x74, 0x05,                     /* je 1f */
        0xb8, 0xef, 0xbe, 0xad, 0xde,   /* movl $0xdeadbeef,%eax */
```

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/375#note_3529



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