打造世界最小LZMA解压DLL（最终话）

在前面的文章里，我们通过使用UPX Stub中的代码加以手工修改PE文件导出表得到了3280byte的目标DLL（点击此处），又通过重新编译LZMA SDK将目标缩小到2970byte（点击此处）。今天我们继续精简，通过修改源代码来进一步缩小目标文件的大小。

首先我们可以看到原来LZMA解压在不加其他功能情况下的声明是：

int LzmaDecode(CLzmaDecoderState *vs, const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed, unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);

typedef struct _CLzmaProperties
{
int lc;
int lp;
int pb;
}CLzmaProperties;

typedef struct _CLzmaDecoderState
{
CLzmaProperties Properties;
CProb *Probs;
} CLzmaDecoderState;

这里可以去除我们不需要的部分：

1、inSizeProcessed和outSizeProcessed不需要。

2、CLzmaProperties采用默认的lc=3，lp=0，pb=2，可以硬编码到代码中。

3、Probs可以放在函数内作为局部变量。

故修改函数声明及前面局部变量声明为：

这是一段程序代码。

```
int __stdcall LzmaDecode(
```

    const unsigned char *inStream, SizeT inSize,

    unsigned char *outStream, SizeT outSize)

```
{
```
```
  //CProb *p = vs->Probs;
```
```
  SizeT nowPos = 0;
```
```
  Byte previousByte = 0;
```

  UInt32 posStateMask = (1 << (/*vs->Properties.pb*/2)) - 1;

  UInt32 literalPosMask = (1 << (/*vs->Properties.lp*/0)) - 1;

```
  int lc = /*vs->Properties.lc*/3;
```
```
  int state = 0;
```

  UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;

```
  int len = 0;
```
```
  const Byte *Buffer;
```
```
  const Byte *BufferLim;
```
```
  UInt32 Range;
```
```
  UInt32 Code;
```

  CProb Probs[LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (3 + 0))];

```
  CProb *p = Probs;
```
```
  //*inSizeProcessed = 0;
```
```
  //*outSizeProcessed = 0;
```

使用VC6编译即可。编译后需要注意一个问题：Probs数组大小为15980字节，超过了一页4kb的大小，编译出来可以看到编译器采用了mov eax,xxxxxxxx; call __chkesp的做法分配栈空间，这样可以防止发生访问越界问题。而这里我们需要将这个call手动实现，参考以前的文章：mov ecx,xxxxxxxx; push 0; loopd $-2，由于代码量较少，直接修改机器码即可。

最后除掉RET这段解压代码的大小为2296byte，生成目标DLL大小为2810字节。

ASM代码：

这是一段程序代码。

```
.386
```
```
.model flat
```
```
.code
```

db 55h,8Bh,0ECh,0B9h,0A8h,0Fh,0,0,6Ah,0,0E2h,0FCh,53h,56h,57h,80h

db 65h,0FBh,0,0B9h,9Bh,0Fh,0,0,0B8h,0,4,0,4,8Dh,0BDh,60h

db 0C1h,0FFh,0FFh,6Ah,1,0F3h,0ABh,8Bh,45h,8,8Bh,4Dh,0Ch,8Bh,0D0h,3

db 0C1h,33h,0F6h,5Bh,33h,0C9h,89h,45h,0F4h,89h,75h,0DCh,89h,75h,0FCh,89h

db 5Dh,0F0h,89h,5Dh,0D0h,89h,5Dh,0D4h,89h,5Dh,0CCh,89h,4Dh,8,83h,0C8h

db 0FFh,0EBh,3,6Ah,1,5Bh,3Bh,55h,0F4h,74h,24h,8Bh,7Dh,8,0Fh,0B6h

db 1Ah,0C1h,0E7h,8,0Bh,0FBh,42h,41h,89h,7Dh,8,83h,0F9h,5,89h,55h

db 0Ch,7Ch,0E0h,83h,7Dh,14h,0,0Fh,86h,75h,8,0,0,0EBh,0Ah,8Bh

db 0C3h,0E9h,6Eh,8,0,0,8Bh,55h,0Ch,8Bh,4Dh,0FCh,83h,0E6h,3,0C1h

db 0E1h,4,3,0CEh,3Dh,0,0,0,1,8Dh,0BCh,4Dh,60h,0C1h,0FFh,0FFh

db 73h,1Eh,3Bh,55h,0F4h,0Fh,84h,3Eh,8,0,0,8Bh,4Dh,8,0Fh,0B6h

db 1Ah,0C1h,0E1h,8,0C1h,0E0h,8,0Bh,0CBh,42h,89h,4Dh,8,89h,55h,0Ch

db 66h,8Bh,0Fh,8Bh,0D8h,0Fh,0B7h,0D1h,0C1h,0EBh,0Bh,0Fh,0AFh,0DAh,39h,5Dh

db 8,0Fh,83h,98h,1,0,0,0Fh,0B7h,0F1h,8Bh,0C3h,0BBh,0,8,0

db 0,2Bh,0DEh,6Ah,1,0C1h,0FBh,5,3,0D9h,5Ah,0Fh,0B6h,4Dh,0FBh,0C1h

db 0E9h,5,66h,89h,1Fh,8Dh,0Ch,49h,0C1h,0E1h,9,83h,7Dh,0FCh,7,8Dh

db 8Ch,0Dh,0CCh,0CFh,0FFh,0FFh,89h,4Dh,0E4h,0Fh,8Ch,0B5h,0,0,0,8Bh

db 4Dh,0DCh,8Bh,75h,10h,2Bh,4Dh,0F0h,0Fh,0B6h,0Ch,31h,89h,4Dh,0E0h,0D1h

db 65h,0E0h,8Bh,4Dh,0E0h,8Bh,75h,0E4h,81h,0E1h,0,1,0,0,89h,4Dh

db 0ECh,3,0CAh,3Dh,0,0,0,1,8Dh,0B4h,4Eh,0,2,0,0,73h

db 21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,9Ch,7,0,0,8Bh,7Dh,8

db 0Fh,0B6h,19h,0C1h,0E7h,8,0C1h,0E0h,8,0Bh,0FBh,41h,89h,7Dh,8,89h

db 4Dh,0Ch,66h,8Bh,0Eh,8Bh,0F8h,0Fh,0B7h,0D9h,0C1h,0EFh,0Bh,0Fh,0AFh,0FBh

db 39h,7Dh,8,73h,1Bh,8Bh,0C7h,0BFh,0,8,0,0,2Bh,0FBh,0C1h,0FFh

db 5,3,0F9h,0D1h,0E2h,83h,7Dh,0ECh,0,66h,89h,3Eh,75h,2Eh,0EBh,1Bh

db 29h,7Dh,8,2Bh,0C7h,66h,8Bh,0F9h,8Dh,54h,12h,1,66h,0C1h,0EFh,5

db 2Bh,0CFh,83h,7Dh,0ECh,0,66h,89h,0Eh,74h,11h,81h,0FAh,0,1,0

db 0,0Fh,8Dh,81h,0,0,0,0E9h,63h,0FFh,0FFh,0FFh,81h,0FAh,0,1

db 0,0,7Dh,74h,8Bh,4Dh,0E4h,8Dh,3Ch,12h,89h,7Dh,0ECh,3,0F9h,3Dh

db 0,0,0,1,73h,21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,7,7

db 0,0,8Bh,75h,8,0Fh,0B6h,19h,0C1h,0E6h,8,0C1h,0E0h,8,0Bh,0F3h

db 41h,89h,75h,8,89h,4Dh,0Ch,66h,8Bh,0Fh,8Bh,0F0h,0Fh,0B7h,0D9h,0C1h

db 0EEh,0Bh,0Fh,0AFh,0F3h,39h,75h,8,73h,15h,8Bh,0C6h,0BEh,0,8,0

db 0,2Bh,0F3h,0C1h,0FEh,5,3,0F1h,66h,89h,37h,0D1h,0E2h,0EBh,9Dh,29h

db 75h,8,66h,8Bh,0D1h,66h,0C1h,0EAh,5,2Bh,0C6h,2Bh,0CAh,66h,89h,0Fh

db 8Bh,4Dh,0ECh,8Dh,51h,1,0EBh,84h,8Bh,4Dh,10h,8Bh,75h,0DCh,88h,55h

db 0FBh,88h,14h,0Eh,46h,83h,7Dh,0FCh,4,89h,75h,0DCh,7Dh,9,83h,65h

db 0FCh,0,0E9h,7Ah,6,0,0,83h,7Dh,0FCh,0Ah,7Dh,9,83h,6Dh,0FCh

db 3,0E9h,6Bh,6,0,0,83h,6Dh,0FCh,6,0E9h,62h,6,0,0,29h

db 5Dh,8,66h,8Bh,0D1h,66h,0C1h,0EAh,5,2Bh,0CAh,2Bh,0C3h,66h,89h,0Fh

db 8Bh,4Dh,0FCh,3Dh,0,0,0,1,8Dh,94h,4Dh,0E0h,0C2h,0FFh,0FFh,73h

db 21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,4Ch,6,0,0,8Bh,7Dh,8

db 0Fh,0B6h,19h,0C1h,0E7h,8,0C1h,0E0h,8,0Bh,0FBh,41h,89h,7Dh,8,89h

db 4Dh,0Ch,66h,8Bh,0Ah,8Bh,0F8h,0Fh,0B7h,0D9h,0C1h,0EFh,0Bh,0Fh,0AFh,0FBh

db 39h,7Dh,8,73h,44h,8Bh,0C7h,0BBh,0,8,0,0,0Fh,0B7h,0F9h,2Bh

db 0DFh,0C1h,0FBh,5,3,0D9h,8Bh,4Dh,0D4h,89h,4Dh,0CCh,8Bh,4Dh,0D0h,89h

db 4Dh,0D4h,8Bh,4Dh,0F0h,89h,4Dh,0D0h,33h,0C9h,83h,7Dh,0FCh,7,66h,89h

db 1Ah,0Fh,9Dh,0C1h,49h,83h,0E1h,0FDh,83h,0C1h,3,89h,4Dh,0FCh,8Dh,8Dh

db 0C4h,0C7h,0FFh,0FFh,0E9h,39h,2,0,0,29h,7Dh,8,2Bh,0C7h,66h,8Bh

db 0F9h,66h,0C1h,0EFh,5,2Bh,0CFh,3Dh,0,0,0,1,66h,89h,0Ah,73h

db 21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,0BCh,5,0,0,8Bh,55h,8

db 0Fh,0B6h,39h,0C1h,0E2h,8,0C1h,0E0h,8,0Bh,0D7h,41h,89h,55h,8,89h

db 4Dh,0Ch,8Bh,7Dh,0FCh,8Bh,0C8h,0C1h,0E9h,0Bh,66h,8Bh,94h,7Dh,0F8h,0C2h

db 0FFh,0FFh,0Fh,0B7h,0DAh,0Fh,0AFh,0CBh,39h,4Dh,8,0Fh,83h,0C2h,0,0

db 0,0BFh,0,8,0,0,8Bh,0C1h,2Bh,0FBh,0C1h,0FFh,5,3,0FAh,8Bh

db 55h,0FCh,66h,89h,0BCh,55h,0F8h,0C2h,0FFh,0FFh,0C1h,0E2h,4,3,0D6h,81h

db 0F9h,0,0,0,1,8Dh,94h,55h,40h,0C3h,0FFh,0FFh,73h,23h,8Bh,7Dh

db 0Ch,3Bh,7Dh,0F4h,0Fh,84h,4Fh,5,0,0,0Fh,0B6h,1Fh,0C1h,0E1h,8

db 8Bh,0C1h,8Bh,4Dh,8,0C1h,0E1h,8,0Bh,0CBh,47h,89h,4Dh,8,89h,7Dh

db 0Ch,66h,8Bh,0Ah,8Bh,0F8h,0Fh,0B7h,0D9h,0C1h,0EFh,0Bh,0Fh,0AFh,0FBh,39h

db 7Dh,8,73h,49h,0BEh,0,8,0,0,8Bh,0C7h,2Bh,0F3h,0C1h,0FEh,5

db 3,0F1h,66h,89h,32h,8Bh,75h,0DCh,85h,0F6h,0Fh,84h,9,5,0,0

db 33h,0C9h,83h,7Dh,0FCh,7,8Bh,55h,10h,0Fh,9Dh,0C1h,49h,83h,0E1h,0FEh

db 83h,0C1h,0Bh,89h,4Dh,0FCh,8Bh,0CEh,2Bh,4Dh,0F0h,8Ah,0Ch,11h,88h,0Ch

db 16h,46h,88h,4Dh,0FBh,89h,75h,0DCh,0E9h,0C4h,4,0,0,29h,7Dh,8

db 2Bh,0C7h,66h,8Bh,0F9h,66h,0C1h,0EFh,5,2Bh,0CFh,66h,89h,0Ah,0E9h,6

db 1,0,0,29h,4Dh,8,2Bh,0C1h,66h,8Bh,0CAh,66h,0C1h,0E9h,5,2Bh

db 0D1h,3Dh,0,0,0,1,66h,89h,94h,7Dh,0F8h,0C2h,0FFh,0FFh,8Dh,94h

db 7Dh,10h,0C3h,0FFh,0FFh,73h,21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,96h

db 4,0,0,8Bh,7Dh,8,0Fh,0B6h,19h,0C1h,0E7h,8,0C1h,0E0h,8,0Bh

db 0FBh,41h,89h,7Dh,8,89h,4Dh,0Ch,66h,8Bh,0Ah,8Bh,0F8h,0Fh,0B7h,0D9h

db 0C1h,0EFh,0Bh,0Fh,0AFh,0FBh,39h,7Dh,8,73h,19h,8Bh,0C7h,0BFh,0,8

db 0,0,2Bh,0FBh,0C1h,0FFh,5,3,0F9h,8Bh,4Dh,0D0h,66h,89h,3Ah,0E9h

db 8Ch,0,0,0,29h,7Dh,8,2Bh,0C7h,66h,8Bh,0F9h,66h,0C1h,0EFh,5

db 2Bh,0CFh,3Dh,0,0,0,1,66h,89h,0Ah,8Bh,4Dh,0FCh,8Dh,94h,4Dh

db 28h,0C3h,0FFh,0FFh,73h,21h,8Bh,4Dh,0Ch,3Bh,4Dh,0F4h,0Fh,84h,27h,4

db 0,0,8Bh,7Dh,8,0Fh,0B6h,19h,0C1h,0E7h,8,0C1h,0E0h,8,0Bh,0FBh

db 41h,89h,7Dh,8,89h,4Dh,0Ch,66h,8Bh,0Ah,8Bh,0F8h,0Fh,0B7h,0D9h,0C1h

db 0EFh,0Bh,0Fh,0AFh,0FBh,39h,7Dh,8,73h,16h,8Bh,0C7h,0BFh,0,8,0

db 0,2Bh,0FBh,0C1h,0FFh,5,3,0F9h,8Bh,4Dh,0D4h,66h,89h,3Ah,0EBh,1Ah

db 29h,7Dh,8,2Bh,0C7h,66h,8Bh,0F9h,66h,0C1h,0EFh,5,2Bh,0CFh,66h,89h

db 0Ah,8Bh,55h,0D4h,8Bh,4Dh,0CCh,89h,55h,0CCh,8Bh,55h,0D0h,89h,55h,0D4h

db 8Bh,55h,0F0h,89h,4Dh,0F0h,89h,55h,0D0h,33h,0C9h,83h,7Dh,0FCh,7,0Fh

db 9Dh,0C1h,49h,83h,0E1h,0FDh,83h,0C1h,0Bh,89h,4Dh,0FCh,8Dh,8Dh,0C8h,0CBh

db 0FFh,0FFh,3Dh,0,0,0,1,73h,21h,8Bh,55h,0Ch,3Bh,55h,0F4h,0Fh

db 84h,94h,3,0,0,8Bh,7Dh,8,0Fh,0B6h,1Ah,0C1h,0E7h,8,0C1h,0E0h

db 8,0Bh,0FBh,42h,89h,7Dh,8,89h,55h,0Ch,66h,8Bh,11h,8Bh,0F8h,0Fh

db 0B7h,0DAh,0C1h,0EFh,0Bh,0Fh,0AFh,0FBh,39h,7Dh,8,73h,28h,8Bh,0C7h,0BFh

db 0,8,0,0,2Bh,0FBh,0C1h,0FFh,5,3,0FAh,0C1h,0E6h,4,83h,65h

db 0E0h,0,66h,89h,39h,8Dh,4Ch,0Eh,4,0C7h,45h,0E4h,3,0,0,0

db 0E9h,9Eh,0,0,0,29h,7Dh,8,2Bh,0C7h,66h,8Bh,0FAh,66h,0C1h,0EFh

db 5,2Bh,0D7h,3Dh,0,0,0,1,66h,89h,11h,73h,21h,8Bh,55h,0Ch

db 3Bh,55h,0F4h,0Fh,84h,20h,3,0,0,8Bh,7Dh,8,0Fh,0B6h,1Ah,0C1h

db 0E7h,8,0C1h,0E0h,8,0Bh,0FBh,42h,89h,7Dh,8,89h,55h,0Ch,66h,8Bh

db 51h,2,8Bh,0F8h,0Fh,0B7h,0DAh,0C1h,0EFh,0Bh,0Fh,0AFh,0FBh,39h,7Dh,8

db 73h,2Bh,8Bh,0C7h,0BBh,0,8,0,0,0Fh,0B7h,0FAh,2Bh,0DFh,0C7h,45h

db 0E0h,8,0,0,0,0C1h,0FBh,5,3,0DAh,0C1h,0E6h,4,66h,89h,59h

db 2,8Dh,8Ch,0Eh,4,1,0,0,0E9h,7Ch,0FFh,0FFh,0FFh,29h,7Dh,8

db 66h,8Bh,0F2h,66h,0C1h,0EEh,5,2Bh,0D6h,2Bh,0C7h,66h,89h,51h,2,81h

db 0C1h,4,2,0,0,0C7h,45h,0E0h,10h,0,0,0,0C7h,45h,0E4h,8

db 0,0,0,8Bh,55h,0E4h,0C7h,45h,0E8h,1,0,0,0,89h,55h,0ECh

db 8Bh,55h,0E8h,8Dh,3Ch,12h,89h,7Dh,0D8h,3,0F9h,3Dh,0,0,0,1

db 73h,21h,8Bh,55h,0Ch,3Bh,55h,0F4h,0Fh,84h,7Bh,2,0,0,8Bh,75h

db 8,0Fh,0B6h,1Ah,0C1h,0E6h,8,0C1h,0E0h,8,0Bh,0F3h,42h,89h,75h,8

db 89h,55h,0Ch,66h,8Bh,17h,8Bh,0F0h,0Fh,0B7h,0DAh,0C1h,0EEh,0Bh,0Fh,0AFh

db 0F3h,39h,75h,8,73h,16h,8Bh,0C6h,0BEh,0,8,0,0,2Bh,0F3h,0C1h

db 0FEh,5,3,0F2h,0D1h,65h,0E8h,66h,89h,37h,0EBh,18h,29h,75h,8,2Bh

db 0C6h,66h,8Bh,0F2h,66h,0C1h,0EEh,5,2Bh,0D6h,66h,89h,17h,8Bh,55h,0D8h

db 42h,89h,55h,0E8h,0FFh,4Dh,0ECh,75h,87h,8Bh,4Dh,0E4h,6Ah,1,5Fh,8Bh

db 0D7h,0D3h,0E2h,8Bh,4Dh,0E0h,2Bh,0CAh,1,4Dh,0E8h,83h,7Dh,0FCh,4,0Fh

db 8Dh,0BDh,1,0,0,83h,45h,0FCh,7,83h,7Dh,0E8h,4,7Dh,5,8Bh

db 4Dh,0E8h,0EBh,3,6Ah,3,59h,0C1h,0E1h,7,0C7h,45h,0ECh,6,0,0

db 0,8Dh,8Ch,0Dh,0C0h,0C4h,0FFh,0FFh,89h,4Dh,0E4h,8Bh,55h,0E4h,8Dh,0Ch

db 3Fh,3Dh,0,0,0,1,89h,4Dh,0D8h,8Dh,34h,0Ah,73h,21h,8Bh,4Dh

db 0Ch,3Bh,4Dh,0F4h,0Fh,84h,0BFh,1,0,0,8Bh,55h,8,0Fh,0B6h,19h

db 0C1h,0E2h,8,0C1h,0E0h,8,0Bh,0D3h,41h,89h,55h,8,89h,4Dh,0Ch,66h

db 8Bh,0Eh,8Bh,0D0h,0Fh,0B7h,0D9h,0C1h,0EAh,0Bh,0Fh,0AFh,0D3h,39h,55h,8

db 73h,15h,8Bh,0C2h,0BAh,0,8,0,0,2Bh,0D3h,0C1h,0FAh,5,3,0D1h

db 66h,89h,16h,0D1h,0E7h,0EBh,17h,29h,55h,8,2Bh,0C2h,66h,8Bh,0D1h,66h

db 0C1h,0EAh,5,2Bh,0CAh,66h,89h,0Eh,8Bh,4Dh,0D8h,8Dh,79h,1,0FFh,4Dh

db 0ECh,75h,88h,83h,0EFh,40h,83h,0FFh,4,0Fh,8Ch,0Bh,1,0,0,6Ah

db 1,8Bh,0CFh,8Bh,0D7h,5Eh,0D1h,0F9h,23h,0D6h,49h,83h,0CAh,2,83h,0FFh

db 0Eh,89h,4Dh,0ECh,7Dh,13h,0D3h,0E2h,89h,55h,0F0h,2Bh,0D7h,8Dh,8Ch,55h

db 0BEh,0C6h,0FFh,0FFh,89h,4Dh,0E4h,0EBh,51h,83h,0E9h,4,3Dh,0,0,0

db 1,73h,20h,8Bh,7Dh,0Ch,3Bh,7Dh,0F4h,0Fh,84h,1Fh,1,0,0,8Bh

db 5Dh,8,0Fh,0B6h,3Fh,0C1h,0E3h,8,0Bh,0DFh,0C1h,0E0h,8,0FFh,45h,0Ch

db 89h,5Dh,8,0D1h,0E8h,0D1h,0E2h,39h,45h,8,72h,5,29h,45h,8,0Bh

db 0D6h,49h,75h,0C8h,8Dh,8Dh,0A4h,0C7h,0FFh,0FFh,0C7h,45h,0ECh,4,0,0

db 0,0C1h,0E2h,4,89h,4Dh,0E4h,89h,55h,0F0h,89h,75h,0D8h,89h,75h,0E0h

db 0EBh,3,6Ah,1,5Eh,8Bh,4Dh,0E0h,8Bh,55h,0E4h,3,0C9h,3Dh,0,0

db 0,1,8Dh,3Ch,11h,73h,21h,8Bh,55h,0Ch,3Bh,55h,0F4h,0Fh,84h,0BBh

db 0,0,0,8Bh,75h,8,0Fh,0B6h,1Ah,0C1h,0E6h,8,0C1h,0E0h,8,0Bh

db 0F3h,42h,89h,75h,8,89h,55h,0Ch,66h,8Bh,17h,8Bh,0F0h,0Fh,0B7h,0DAh

db 0C1h,0EEh,0Bh,0Fh,0AFh,0F3h,39h,75h,8,73h,16h,0B9h,0,8,0,0

db 8Bh,0C6h,2Bh,0CBh,0C1h,0F9h,5,3,0CAh,0D1h,65h,0E0h,66h,89h,0Fh,0EBh

db 1Bh,29h,75h,8,2Bh,0C6h,66h,8Bh,0F2h,66h,0C1h,0EEh,5,2Bh,0D6h,41h

db 89h,4Dh,0E0h,8Bh,4Dh,0D8h,9,4Dh,0F0h,66h,89h,17h,0D1h,65h,0D8h,0FFh

db 4Dh,0ECh,0Fh,85h,7Ah,0FFh,0FFh,0FFh,0EBh,3,89h,7Dh,0F0h,0FFh,45h,0F0h

db 74h,38h,8Bh,75h,0DCh,83h,45h,0E8h,2,39h,75h,0F0h,77h,3Bh,8Bh,55h

db 10h,8Bh,0CEh,2Bh,4Dh,0F0h,0FFh,4Dh,0E8h,8Ah,0Ch,11h,88h,0Ch,16h,46h

db 83h,7Dh,0E8h,0,88h,4Dh,0FBh,89h,75h,0DCh,74h,5,3Bh,75h,14h,72h

db 0E0h,3Bh,75h,14h,0Fh,82h,0ACh,0F7h,0FFh,0FFh,3Dh,0,0,0,1,73h

db 11h,8Bh,45h,0F4h,39h,45h,0Ch,75h,9,6Ah,1,58h,0EBh,6,8Bh,0C6h

```
db 0EBh,2,33h,0C0h,5Fh,5Eh,5Bh,0C9h
```
```
retn 10h
```
```
end
```

6 Replies to “打造世界最小LZMA解压DLL（最终话）”

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H4610 says:

2012-09-10 at 01:00

记得dwing大的upack壳里lzma解压代码优化到大概300多字节

TianWang says:

2018-09-04 at 11:28

网上的LZMA的版本太多了，不知道阁下的解的是哪个版本的？

1. TianWang says:
  
  2018-09-04 at 11:29
  
  我用delphi版的压缩，然后用阁下的代码，居然解不开。
2. gmsj0001 says:
  
  2018-09-10 at 14:55
  
  7z官网LZMA SDK中的lzmaenc命令行，另外好像是要去掉头，字典大小不宜过大
TianWang says:

2018-09-11 at 09:17

我的delphi跟LZMA SDK中的lzma.exe可以互相加解压，但是用阁下的代码着实不能解压，不知道是什么原因。或许应该要设置某些压缩参数吧？谢谢

6 Replies to “打造世界最小LZMA解压DLL（最终话）”

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