A.
:
- , 00000000 111111111 0 255 (0 28 1);
- , 0 65535 (0 216 1).
1. 7210 = 10010002 :
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
B.
:
- , 0000000 +11111111 -128 127 (27 27 1);
- , 32768 32767 (215 215 1);
- ,
2147483648 2147483647 (231... 2311).
() . , . , .
() : , , .
, . , : a b = a + (b).
, 0 .
. (0), (1).
2. 6910= 10001012 :
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
3. 5910 = 1110112 :
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
. , .
.
, : , .
|
|
.
.
. .
4. + 2710 2710 , .
+ 2710 | +110112 | 0 0011011 | 0 0011011 | 0 0011011 | 0 0011011 |
2710 | 110112 | 1 0011011 | 0 0011011 | 11100100 | 11100101 |
1. , .
) 11010112; ) 1010112; ) 1011012; ) 11001112;
2.
. . .
,
.
.
5. + Y = 15 5 =? .
= 1510 Y = 510 + Y = 1010 | = 1111 Y = 101 + Y = 1010 | = 0 0001111 Y = 1 1111010 1 0 0001001 Ä + 1 ( + Y) = 0 0001010 | = 0 0001111 Y = + 1 1111011 1 0 0001001 Ã ( + Y) = 0 0001010 |
, . , , . , , .
6. + Y = 5 7 =? .
= 5 Y = 7 + Y = 12 | = 101 Y = 111 + Y = 1100 | = 1 1111010 Y = + 1 1111000 1 1 1110010 Ä ð + 1 ( + Y)= 1 1110011 | = 1 1111011 Y = + 1 1111001 1 1 1110100 Ã ( + Y) = 1 1110100 |
( 1), :
- : ( + Y) = 1 1110011 ð ( + Y) = 1 0001100
- : ( + Y) = 1 1110100 ð ( + Y) = 1 0001011 + 0 00000001,
( + Y) = 1 0001100.
3.
, . .
|
|
, . , , , 1, .
, = 0 1011110
Y = 0 1101100
+ Y = 1 1001010
Y , 1, . , .
, : 00 +, 11 . (01 10), , . .
7. : = 101011 Y = 11110. .
= +0101011 | Y = 0011110 | |
= 01010100 | Y = 1 1100001 | |
= 00 1010100 | = 11 1100001 | |
= 01010101 | Y = 1 1100010 | |
= 00 1010101 | = 11 1100010 |
= 0 0101011 Y = + 1 1100010 1 0 0001101 Ã ( + Y) = 0 0001101 | = 00 0101011 = + 11 1100010 1 00 0001101 Ã = 00 0001101 |
4.
1. Y , . . .
2. Y, . . . , .
Y | Y | ||
= 100101 Y = 11101 | = 101101 Y = 1101 | ||
= 110101 Y = 11101 | = 1101111 Y = 10101 | ||
= 1000111 Y = 11101 | = 1110001 Y = 10011 | ||
= 1010001 Y = 10011 | = 1000011 Y = 10011 | ||
= 1101001 Y = 10111 | = 1010001 Y = 1111 | ||
= 101001 Y = 10111 | = 1010111 Y = 11100 | ||
= 110101 Y = 1111 | = 101111 Y = 1101 | ||
= 110101 Y = 10011 | = 1001011 Y = 10101 | ||
= 100011 Y = 10011 | = 1010001 Y = 1011 | ||
= 110001 Y = 10111 | = 1000111 Y = 11111 | ||
= 111001 Y = 1110 | = 100001 Y = 1111 | ||
= 1011101 Y = 10111 | = 1111000 Y = 101111 | ||
= 1100000 Y = 1111 | = 10101 Y = 1101 |