old/new Write64 JIT loop

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Produced: 7/22/2014 10:14:10 AM

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Left file: C:\Users\\Desktop\old_Write64_JIT_loop.txt
Right file: C:\Users\\Desktop\new_Write64_JIT_loop.txt
1              for (int byteIndex = 0; byteIndex < 8; byteIndex++)       <> 1                  for (int i = -1; ++i < 8; value >>= 8)
2  00007FFC28EE471D  mov         dword ptr [rsp+28h],0                      2  00007FFC28EE4911  mov         dword ptr [rsp+20h],0FFFFFFFFh
3  00007FFC28EE4725  jmp         00007FFC28EE4825                           3  00007FFC28EE4919  jmp         00007FFC28EE4972
4              {
5                  buf[offset + byteIndex] = (byte)(valueToWrite % 256);    4                      buf[offset + i] = (byte)value;
6  00007FFC28EE472A  mov         ecx,dword ptr [rsp+28h]                    5  00007FFC28EE491B  mov         ecx,dword ptr [rsp+20h]
7  00007FFC28EE472E  mov         eax,dword ptr [rsp+90h]                    6  00007FFC28EE491F  mov         eax,dword ptr [rsp+80h]
8  00007FFC28EE4735  add         eax,ecx                                    7  00007FFC28EE4926  add         eax,ecx
9  00007FFC28EE4737  mov         dword ptr [rsp+38h],eax
10 00007FFC28EE473B  mov         rax,qword ptr [rsp+20h]
11 00007FFC28EE4740  cqo
12 00007FFC28EE4742  and         rdx,0FFh
13 00007FFC28EE4749  add         rax,rdx
14 00007FFC28EE474C  and         rax,0FFh
15 00007FFC28EE4752  sub         rax,rdx                                    8  00007FFC28EE4928  movsxd      rcx,eax
16 00007FFC28EE4755  mov         qword ptr [rsp+40h],rax
17 00007FFC28EE475A  movsxd      rcx,dword ptr [rsp+38h]
18 00007FFC28EE475F  mov         rax,qword ptr [rsp+88h]                    9  00007FFC28EE492B  mov         rax,qword ptr [rsp+78h]
19 00007FFC28EE4767  mov         rax,qword ptr [rax+8]                      10 00007FFC28EE4930  mov         rax,qword ptr [rax+8]
20 00007FFC28EE476B  mov         qword ptr [rsp+48h],rcx                    11 00007FFC28EE4934  mov         qword ptr [rsp+28h],rcx
21 00007FFC28EE4770  cmp         qword ptr [rsp+48h],rax                    12 00007FFC28EE4939  cmp         qword ptr [rsp+28h],rax
22 00007FFC28EE4775  jae         00007FFC28EE4783                           13 00007FFC28EE493E  jae         00007FFC28EE494C
23 00007FFC28EE4777  mov         rax,qword ptr [rsp+48h]                    14 00007FFC28EE4940  mov         rax,qword ptr [rsp+28h]
24 00007FFC28EE477C  mov         qword ptr [rsp+48h],rax                    15 00007FFC28EE4945  mov         qword ptr [rsp+28h],rax
25 00007FFC28EE4781  jmp         00007FFC28EE4788                           16 00007FFC28EE494A  jmp         00007FFC28EE4951
26 00007FFC28EE4783  call        00007FFC88A16590                           17 00007FFC28EE494C  call        00007FFC88A16590
27 00007FFC28EE4788  mov         rdx,qword ptr [rsp+88h]                    18 00007FFC28EE4951  mov         rdx,qword ptr [rsp+78h]
28 00007FFC28EE4790  mov         rcx,qword ptr [rsp+48h]                    19 00007FFC28EE4956  mov         rcx,qword ptr [rsp+28h]
29 00007FFC28EE4795  movzx       eax,byte ptr [rsp+40h]                     20 00007FFC28EE495B  movzx       eax,byte ptr [rsp+70h]
30 00007FFC28EE479A  mov         byte ptr [rdx+rcx+10h],al                  21 00007FFC28EE4960  mov         byte ptr [rdx+rcx+10h],al
31                 valueToWrite -= buf[offset + byteIndex];                 22                 for (int i = -1; ++i < 8; value >>= 8)
32 00007FFC28EE479E  mov         ecx,dword ptr [rsp+28h]
33 00007FFC28EE47A2  mov         eax,dword ptr [rsp+90h]
34 00007FFC28EE47A9  add         eax,ecx
35 00007FFC28EE47AB  movsxd      rcx,eax
36 00007FFC28EE47AE  mov         rax,qword ptr [rsp+88h]
37 00007FFC28EE47B6  mov         rax,qword ptr [rax+8]
38 00007FFC28EE47BA  mov         qword ptr [rsp+50h],rcx
39 00007FFC28EE47BF  cmp         qword ptr [rsp+50h],rax
40 00007FFC28EE47C4  jae         00007FFC28EE47D2
41 00007FFC28EE47C6  mov         rax,qword ptr [rsp+50h]                    23 00007FFC28EE4964  mov         rax,qword ptr [rsp+70h]
42 00007FFC28EE47CB  mov         qword ptr [rsp+50h],rax
43 00007FFC28EE47D0  jmp         00007FFC28EE47D7
44 00007FFC28EE47D2  call        00007FFC88A16590
45 00007FFC28EE47D7  mov         rcx,qword ptr [rsp+88h]
46 00007FFC28EE47DF  mov         rax,qword ptr [rsp+50h]
47 00007FFC28EE47E4  movzx       rcx,byte ptr [rcx+rax+10h]
48 00007FFC28EE47EA  mov         rax,qword ptr [rsp+20h]
49 00007FFC28EE47EF  sub         rax,rcx                                    24 00007FFC28EE4969  sar         rax,8
50 00007FFC28EE47F2  mov         qword ptr [rsp+20h],rax                    25 00007FFC28EE496D  mov         qword ptr [rsp+70h],rax
51                 valueToWrite /= 256;
52 00007FFC28EE47F7  mov         rax,qword ptr [rsp+20h]                    26 00007FFC28EE4972  mov         eax,dword ptr [rsp+20h]
53 00007FFC28EE47FC  cqo                                                    27 00007FFC28EE4976  inc         eax
54 00007FFC28EE47FE  and         rdx,0FFh
55                 valueToWrite /= 256;
56 00007FFC28EE4805  add         rax,rdx
57 00007FFC28EE4808  sar         rax,8
58 00007FFC28EE480C  mov         qword ptr [rsp+58h],rax                    28 00007FFC28EE4978  mov         dword ptr [rsp+30h],eax
59 00007FFC28EE4811  mov         rax,qword ptr [rsp+58h]
60 00007FFC28EE4816  mov         qword ptr [rsp+20h],rax
61             for (int byteIndex = 0; byteIndex < 8; byteIndex++)
62 00007FFC28EE481B  mov         eax,dword ptr [rsp+28h]                    29 00007FFC28EE497C  mov         eax,dword ptr [rsp+30h]
63 00007FFC28EE481F  inc         eax
64 00007FFC28EE4821  mov         dword ptr [rsp+28h],eax                    30 00007FFC28EE4980  mov         dword ptr [rsp+20h],eax
65 00007FFC28EE4825  cmp         dword ptr [rsp+28h],8                      31 00007FFC28EE4984  cmp         dword ptr [rsp+30h],8
66 00007FFC28EE482A  jl          00007FFC28EE472A                           32 00007FFC28EE4989  jl          00007FFC28EE491B
67             }
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