Storage Format of int in vc6 memory

Data is stored in binary format in the memory.

In vc6, int occupies 4 bytes,

The value is expressed as a complement.

The complement code of a positive integer is the same as the original code of this number.

The complement code of a negative number is the binary form of the absolute value of the number, which is reversed by bit by 1.

Int I = 512;

The binary format is 0x00 00 02 00.

The memory is 0x00 02 00.

# Include <iostream> using namespace STD; int main () {int I, j; I = 512; For (j = 0; j <4; j ++) printf ("% x", * (unsigned char *) (& I) + J); Return 0 ;}

Print the data of each byte from the low position to the high position of the I address.

0 2 0 0
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The output result is as shown in the preceding figure. Therefore, four int bytes in the PC are stored first, and then in the upper part.