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- #define SIZE 50
- int x[SIZE], y[SIZE], i, *p1, *p2;
- void try1()
- {
- for( i = 0; i < SIZE; i++ )
- {
- x[i] = y[i];
- }
- }
- void try2()
- {
- for( p1 = x, p2 = y; p1 - x < SIZE;)
- {
- *p1++ = *p2++;
- }
- }
- void try3()
- {
- for( i = 0, p1 = x, p2 = y; i < SIZE; i++)
- {
- *p1++ = *p2++;
- }
- }
- void try4()
- {
- register int *p1, *p2;
- register int i;
- for( i = 0, p1 = x, p2 = y; i < SIZE; i++)
- {
- *p1++ = *p2++;
- }
- }
- void try5 ()
- {
- register int *p1,*p2;
- for( p1 = x, p2 = y; p1 < &x[SIZE];)
- {
- *p1++ = *p2++;
- }
- }
- ==============================================================
- void try1()
- {
- 00CC13C0 push ebp
- 00CC13C1 mov ebp,esp
- 00CC13C3 sub esp,0C0h
- 00CC13C9 push ebx
- 00CC13CA push esi
- 00CC13CB push edi
- 00CC13CC lea edi,[ebp-0C0h]
- 00CC13D2 mov ecx,30h
- 00CC13D7 mov eax,0CCCCCCCCh
- 00CC13DC rep stos dword ptr es:[edi]
- for( i = 0; i < SIZE; i++ )
- 00CC13DE mov dword ptr [i (0CC7140h)],0
- 00CC13E8 jmp try1+37h (0CC13F7h)
- 00CC13EA mov eax,dword ptr [i (0CC7140h)]
- 00CC13EF add eax,1
- 00CC13F2 mov dword ptr [i (0CC7140h)],eax
- 00CC13F7 cmp dword ptr [i (0CC7140h)],32h
- 00CC13FE jge try1+5Bh (0CC141Bh)
- {
- x[i] = y[i];
- 00CC1400 mov eax,dword ptr [i (0CC7140h)]
- 00CC1405 mov ecx,dword ptr [i (0CC7140h)]
- 00CC140B mov edx,dword ptr y (0CC7148h)[ecx*4]
- 00CC1412 mov dword ptr x (0CC7210h)[eax*4],edx
- }
- 00CC1419 jmp try1+2Ah (0CC13EAh)
- }
- 00CC141B pop edi
- 00CC141C pop esi
- 00CC141D pop ebx
- 00CC141E mov esp,ebp
- 00CC1420 pop ebp
- 00CC1421 ret
- ===============================================
- void try2()
- {
- 00CC1440 push ebp
- 00CC1441 mov ebp,esp
- 00CC1443 sub esp,0C0h
- 00CC1449 push ebx
- 00CC144A push esi
- 00CC144B push edi
- 00CC144C lea edi,[ebp-0C0h]
- 00CC1452 mov ecx,30h
- 00CC1457 mov eax,0CCCCCCCCh
- 00CC145C rep stos dword ptr es:[edi]
- for( p1 = x, p2 = y; p1 - x < SIZE;)
- 00CC145E mov dword ptr [p1 (0CC713Ch)],offset x (0CC7210h)
- 00CC1468 mov dword ptr [p2 (0CC7138h)],offset y (0CC7148h)
- 00CC1472 mov eax,dword ptr [p1 (0CC713Ch)]
- 00CC1477 sub eax,offset x (0CC7210h)
- 00CC147C sar eax,2
- 00CC147F cmp eax,32h
- 00CC1482 jge try2+71h (0CC14B1h)
- {
- *p1++ = *p2++;
- 00CC1484 mov eax,dword ptr [p1 (0CC713Ch)]
- 00CC1489 mov ecx,dword ptr [p2 (0CC7138h)]
- 00CC148F mov edx,dword ptr [ecx]
- 00CC1491 mov dword ptr [eax],edx
- 00CC1493 mov eax,dword ptr [p1 (0CC713Ch)]
- 00CC1498 add eax,4
- 00CC149B mov dword ptr [p1 (0CC713Ch)],eax
- 00CC14A0 mov ecx,dword ptr [p2 (0CC7138h)]
- 00CC14A6 add ecx,4
- 00CC14A9 mov dword ptr [p2 (0CC7138h)],ecx
- }
- 00CC14AF jmp try2+32h (0CC1472h)
- }
- 00CC14B1 pop edi
- 00CC14B2 pop esi
- 00CC14B3 pop ebx
- 00CC14B4 mov esp,ebp
- 00CC14B6 pop ebp
- 00CC14B7 ret
- ========================================
- void try3()
- {
- 00CC14E0 push ebp
- 00CC14E1 mov ebp,esp
- 00CC14E3 sub esp,0C0h
- 00CC14E9 push ebx
- 00CC14EA push esi
- 00CC14EB push edi
- 00CC14EC lea edi,[ebp-0C0h]
- 00CC14F2 mov ecx,30h
- 00CC14F7 mov eax,0CCCCCCCCh
- 00CC14FC rep stos dword ptr es:[edi]
- for( i = 0, p1 = x, p2 = y; i < SIZE; i++)
- 00CC14FE mov dword ptr [i (0CC7140h)],0
- 00CC1508 mov dword ptr [p1 (0CC713Ch)],offset x (0CC7210h)
- 00CC1512 mov dword ptr [p2 (0CC7138h)],offset y (0CC7148h)
- 00CC151C jmp try3+4Bh (0CC152Bh)
- 00CC151E mov eax,dword ptr [i (0CC7140h)]
- 00CC1523 add eax,1
- 00CC1526 mov dword ptr [i (0CC7140h)],eax
- 00CC152B cmp dword ptr [i (0CC7140h)],32h
- 00CC1532 jge try3+81h (0CC1561h)
- {
- *p1++ = *p2++;
- 00CC1534 mov eax,dword ptr [p1 (0CC713Ch)]
- 00CC1539 mov ecx,dword ptr [p2 (0CC7138h)]
- 00CC153F mov edx,dword ptr [ecx]
- 00CC1541 mov dword ptr [eax],edx
- 00CC1543 mov eax,dword ptr [p1 (0CC713Ch)]
- 00CC1548 add eax,4
- 00CC154B mov dword ptr [p1 (0CC713Ch)],eax
- 00CC1550 mov ecx,dword ptr [p2 (0CC7138h)]
- 00CC1556 add ecx,4
- 00CC1559 mov dword ptr [p2 (0CC7138h)],ecx
- }
- 00CC155F jmp try3+3Eh (0CC151Eh)
- }
- 00CC1561 pop edi
- 00CC1562 pop esi
- 00CC1563 pop ebx
- 00CC1564 mov esp,ebp
- 00CC1566 pop ebp
- 00CC1567 ret
- ====================================
- void try4()
- {
- 00CC1590 push ebp
- 00CC1591 mov ebp,esp
- 00CC1593 sub esp,0E4h
- 00CC1599 push ebx
- 00CC159A push esi
- 00CC159B push edi
- 00CC159C lea edi,[ebp-0E4h]
- 00CC15A2 mov ecx,39h
- 00CC15A7 mov eax,0CCCCCCCCh
- 00CC15AC rep stos dword ptr es:[edi]
- register int *p1, *p2;
- register int i;
- for( i = 0, p1 = x, p2 = y; i < SIZE; i++)
- 00CC15AE mov dword ptr [i],0
- 00CC15B5 mov dword ptr [p1],offset x (0CC7210h)
- 00CC15BC mov dword ptr [p2],offset y (0CC7148h)
- 00CC15C3 jmp try4+3Eh (0CC15CEh)
- 00CC15C5 mov eax,dword ptr [i]
- 00CC15C8 add eax,1
- 00CC15CB mov dword ptr [i],eax
- 00CC15CE cmp dword ptr [i],32h
- 00CC15D2 jge try4+62h (0CC15F2h)
- {
- *p1++ = *p2++;
- 00CC15D4 mov eax,dword ptr [p1]
- 00CC15D7 mov ecx,dword ptr [p2]
- 00CC15DA mov edx,dword ptr [ecx]
- 00CC15DC mov dword ptr [eax],edx
- 00CC15DE mov eax,dword ptr [p1]
- 00CC15E1 add eax,4
- 00CC15E4 mov dword ptr [p1],eax
- 00CC15E7 mov ecx,dword ptr [p2]
- 00CC15EA add ecx,4
- 00CC15ED mov dword ptr [p2],ecx
- }
- 00CC15F0 jmp try4+35h (0CC15C5h)
- }
- 00CC15F2 pop edi
- 00CC15F3 pop esi
- 00CC15F4 pop ebx
- 00CC15F5 mov esp,ebp
- 00CC15F7 pop ebp
- 00CC15F8 ret
- ============================================
- void try5 ()
- {
- 00EB13C0 push ebp
- 00EB13C1 mov ebp,esp
- 00EB13C3 sub esp,0D8h
- 00EB13C9 push ebx
- 00EB13CA push esi
- 00EB13CB push edi
- 00EB13CC lea edi,[ebp-0D8h]
- 00EB13D2 mov ecx,36h
- 00EB13D7 mov eax,0CCCCCCCCh
- 00EB13DC rep stos dword ptr es:[edi]
- register int *p1,*p2;
- for( p1 = x, p2 = y; p1 < &x[SIZE];)
- 00EB13DE mov dword ptr [p1],offset x (0EB7210h)
- 00EB13E5 mov dword ptr [p2],offset y (0EB7148h)
- 00EB13EC cmp dword ptr [p1],offset x+0C8h (0EB72D8h)
- 00EB13F3 jae try5+53h (0EB1413h)
- {
- *p1++ = *p2++;
- 00EB13F5 mov eax,dword ptr [p1]
- 00EB13F8 mov ecx,dword ptr [p2]
- 00EB13FB mov edx,dword ptr [ecx]
- 00EB13FD mov dword ptr [eax],edx
- 00EB13FF mov eax,dword ptr [p1]
- 00EB1402 add eax,4
- 00EB1405 mov dword ptr [p1],eax
- 00EB1408 mov ecx,dword ptr [p2]
- 00EB140B add ecx,4
- 00EB140E mov dword ptr [p2],ecx
- }
- 00EB1411 jmp try5+2Ch (0EB13ECh)
- }
- 00EB1413 pop edi
- 00EB1414 pop esi
- 00EB1415 pop ebx
- 00EB1416 mov esp,ebp
- 00EB1418 pop ebp
- 00EB1419 ret
- ======================================
- ======================================
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