C ++ disassembly 10 (array)

15: void arraytest () 16: {004010d0 push ebp004010d1 mov EBP, esp004010d3 sub ESP, pull Push Pull push edi004010d9 Lea EDI, [ebp-5Ch] 004010dc mov ECx, 1_mov eax, 0cccccccch004010e6 rep STOs dword ptr [EDI] // initialization 17: const int arrsize = 5; 004010e8 mov dword ptr [ebp-4], 5 // The ebp-4 where the array length is assigned 518: int arr [arrsize] = {0}; 004010ef mov dword ptr [ebp-18h], 0 // The ebp-18 is the first address of the array, this sentence = arr [0] = 0; 004010f6 XOR eax, eax004010f8 mov dword ptr [ebp-14h], eax // arr [1] = 0004010fb mov dword ptr [ebp-10h], eax // arr [2] = 0004010fe mov dword ptr [ebp-0Ch], eax // arr [3] = 000401101 mov dword ptr [ebp-8], eax // arr [4] = 019: For (INT I = 0; I <arrsize; I ++) 00401104 mov DWORD PTR [ebp-1Ch], 0 // cyclic variable assigned Initial Value 00040110b JMP arraytest + 46 h (00401116) // hop comparison, determine whether the cyclic condition meets the 0040110d mov ECx, dword ptr [ebp-1Ch] // put the loop variable ecx00401110 add ECx, 1 // ECx ++ 00401113 mov dword ptr [ebp-1Ch], ECX // ECx puts the cyclic variable + + 00401116 cmp dword ptr [ebp-1Ch], 5 // cyclic variable and 5 compare 0040111a jge arraytest + 58 h (00401128) // If the cyclic variable is greater than or equal to 5, the loop is completed. The loop jumps out of the 20: {21: arr [I] = I; 0040111c mov edX, dword ptr [ebp-1Ch] // The loop is not over, put the loop variable value in edX, used to address the array 0040111f mov eax, dword ptr [ebp-1Ch] // put the loop variable into eax00401122 mov dword ptr [EBP + EDX * 4-18 h], eax // The first address of the array at the ebp-18, this address + sizeof (array type) is the memory address of the next array element. Here sizeof (INT) = 4; 22:} 00401126 JMP arraytest + 3DH (0040110d) // continue loop 23:} 00401128 pop edi00401129 pop esi0040112a pop ebx0040112b mov ESP, ebp0040112d pop ebp0040112e RET