问题描述
FillChar是用相同值的字节填充内存补丁的最快方法（不是零，因为它有ZeroMemory），但是用相同的序列填充内存是等效的（ （四字节）整数或基数值？诸如FillInt或FillLongWord之类的东西？
The word has it FillChar is about the fastest way to fill a patch of memory with bytes of the same value (not zero, for that there's ZeroMemory), but is there an equivalent to fill memory with a sequence of the same (four byte) integer or cardinal value? Something like FillInt or FillLongWord?
推荐答案
FillDWord在某些Pascal实现中（此处为FreePascal），不知道它是否在Delphi中
FillDWord is in some Pascal implementations (FreePascal here), don't know if it's in Delphi.
也许一些简单的汇编程序实现？
Maybe some simple assembler implementation?
procedure FillDWord( var Destination; Count: Integer; Value: DWord );
assembler; register;
asm
push edi
mov edi, eax // assign Destination
mov eax, ecx // assign Value
mov ecx, edx
rep stosd
pop edi
end;
...或者某些asm专家可以提供更好的解决方案...
... or some asm expert could give a better one...
您还可以查看FreePascal中的实现。
You could also look at the implementation in FreePascal.
这篇关于FillChar，但用于整数/基数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！