符号付き整数は、0と正の数、負の数が表現できる整数型になります。8ビットの符号付整数型の範囲は最小値:-128、最大値:127となります。
符号無し整数値を表すビットの状態は以下の状態となります。
8bitの2の補数表示による符号付整数
| 10000000 | -128 |
| 10000001 | -127 |
| 10000010 | -126 |
| 10000011 | -125 |
| 10000100 | -124 |
| 10000101 | -123 |
| 10000110 | -122 |
| 10000111 | -121 |
| 10001000 | -120 |
| 10001001 | -119 |
| 10001010 | -118 |
| 10001011 | -117 |
| 10001100 | -116 |
| 10001101 | -115 |
| 10001110 | -114 |
| 10001111 | -113 |
| 10010000 | -112 |
| 10010001 | -111 |
| 10010010 | -110 |
| 10010011 | -109 |
| 10010100 | -108 |
| 10010101 | -107 |
| 10010110 | -106 |
| 10010111 | -105 |
| 10011000 | -104 |
| 10011001 | -103 |
| 10011010 | -102 |
| 10011011 | -101 |
| 10011100 | -100 |
| 10011101 | -99 |
| 10011110 | -98 |
| 10011111 | -97 |
| 10100000 | -96 |
| 10100001 | -95 |
| 10100010 | -94 |
| 10100011 | -93 |
| 10100100 | -92 |
| 10100101 | -91 |
| 10100110 | -90 |
| 10100111 | -89 |
| 10101000 | -88 |
| 10101001 | -87 |
| 10101010 | -86 |
| 10101011 | -85 |
| 10101100 | -84 |
| 10101101 | -83 |
| 10101110 | -82 |
| 10101111 | -81 |
| 10110000 | -80 |
| 10110001 | -79 |
| 10110010 | -78 |
| 10110011 | -77 |
| 10110100 | -76 |
| 10110101 | -75 |
| 10110110 | -74 |
| 10110111 | -73 |
| 10111000 | -72 |
| 10111001 | -71 |
| 10111010 | -70 |
| 10111011 | -69 |
| 10111100 | -68 |
| 10111101 | -67 |
| 10111110 | -66 |
| 10111111 | -65 |
| 11000000 | -64 |
| 11000001 | -63 |
| 11000010 | -62 |
| 11000011 | -61 |
| 11000100 | -60 |
| 11000101 | -59 |
| 11000110 | -58 |
| 11000111 | -57 |
| 11001000 | -56 |
| 11001001 | -55 |
| 11001010 | -54 |
| 11001011 | -53 |
| 11001100 | -52 |
| 11001101 | -51 |
| 11001110 | -50 |
| 11001111 | -49 |
| 11010000 | -48 |
| 11010001 | -47 |
| 11010010 | -46 |
| 11010011 | -45 |
| 11010100 | -44 |
| 11010101 | -43 |
| 11010110 | -42 |
| 11010111 | -41 |
| 11011000 | -40 |
| 11011001 | -39 |
| 11011010 | -38 |
| 11011011 | -37 |
| 11011100 | -36 |
| 11011101 | -35 |
| 11011110 | -34 |
| 11011111 | -33 |
| 11100000 | -32 |
| 11100001 | -31 |
| 11100010 | -30 |
| 11100011 | -29 |
| 11100100 | -28 |
| 11100101 | -27 |
| 11100110 | -26 |
| 11100111 | -25 |
| 11101000 | -24 |
| 11101001 | -23 |
| 11101010 | -22 |
| 11101011 | -21 |
| 11101100 | -20 |
| 11101101 | -19 |
| 11101110 | -18 |
| 11101111 | -17 |
| 11110000 | -16 |
| 11110001 | -15 |
| 11110010 | -14 |
| 11110011 | -13 |
| 11110100 | -12 |
| 11110101 | -11 |
| 11110110 | -10 |
| 11110111 | -9 |
| 11111000 | -8 |
| 11111001 | -7 |
| 11111010 | -6 |
| 11111011 | -5 |
| 11111100 | -4 |
| 11111101 | -3 |
| 11111110 | -2 |
| 11111111 | -1 |
| 00000000 | 0 |
| 00000001 | 1 |
| 00000010 | 2 |
| 00000011 | 3 |
| 00000100 | 4 |
| 00000101 | 5 |
| 00000110 | 6 |
| 00000111 | 7 |
| 00001000 | 8 |
| 00001001 | 9 |
| 00001010 | 10 |
| 00001011 | 11 |
| 00001100 | 12 |
| 00001101 | 13 |
| 00001110 | 14 |
| 00001111 | 15 |
| 00010000 | 16 |
| 00010001 | 17 |
| 00010010 | 18 |
| 00010011 | 19 |
| 00010100 | 20 |
| 00010101 | 21 |
| 00010110 | 22 |
| 00010111 | 23 |
| 00011000 | 24 |
| 00011001 | 25 |
| 00011010 | 26 |
| 00011011 | 27 |
| 00011100 | 28 |
| 00011101 | 29 |
| 00011110 | 30 |
| 00011111 | 31 |
| 00100000 | 32 |
| 00100001 | 33 |
| 00100010 | 34 |
| 00100011 | 35 |
| 00100100 | 36 |
| 00100101 | 37 |
| 00100110 | 38 |
| 00100111 | 39 |
| 00101000 | 40 |
| 00101001 | 41 |
| 00101010 | 42 |
| 00101011 | 43 |
| 00101100 | 44 |
| 00101101 | 45 |
| 00101110 | 46 |
| 00101111 | 47 |
| 00110000 | 48 |
| 00110001 | 49 |
| 00110010 | 50 |
| 00110011 | 51 |
| 00110100 | 52 |
| 00110101 | 53 |
| 00110110 | 54 |
| 00110111 | 55 |
| 00111000 | 56 |
| 00111001 | 57 |
| 00111010 | 58 |
| 00111011 | 59 |
| 00111100 | 60 |
| 00111101 | 61 |
| 00111110 | 62 |
| 00111111 | 63 |
| 01000000 | 64 |
| 01000001 | 65 |
| 01000010 | 66 |
| 01000011 | 67 |
| 01000100 | 68 |
| 01000101 | 69 |
| 01000110 | 70 |
| 01000111 | 71 |
| 01001000 | 72 |
| 01001001 | 73 |
| 01001010 | 74 |
| 01001011 | 75 |
| 01001100 | 76 |
| 01001101 | 77 |
| 01001110 | 78 |
| 01001111 | 79 |
| 01010000 | 80 |
| 01010001 | 81 |
| 01010010 | 82 |
| 01010011 | 83 |
| 01010100 | 84 |
| 01010101 | 85 |
| 01010110 | 86 |
| 01010111 | 87 |
| 01011000 | 88 |
| 01011001 | 89 |
| 01011010 | 90 |
| 01011011 | 91 |
| 01011100 | 92 |
| 01011101 | 93 |
| 01011110 | 94 |
| 01011111 | 95 |
| 01100000 | 96 |
| 01100001 | 97 |
| 01100010 | 98 |
| 01100011 | 99 |
| 01100100 | 100 |
| 01100101 | 101 |
| 01100110 | 102 |
| 01100111 | 103 |
| 01101000 | 104 |
| 01101001 | 105 |
| 01101010 | 106 |
| 01101011 | 107 |
| 01101100 | 108 |
| 01101101 | 109 |
| 01101110 | 110 |
| 01101111 | 111 |
| 01110000 | 112 |
| 01110001 | 113 |
| 01110010 | 114 |
| 01110011 | 115 |
| 01110100 | 116 |
| 01110101 | 117 |
| 01110110 | 118 |
| 01110111 | 119 |
| 01111000 | 120 |
| 01111001 | 121 |
| 01111010 | 122 |
| 01111011 | 123 |
| 01111100 | 124 |
| 01111101 | 125 |
| 01111110 | 126 |
| 01111111 | 127 |
