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计算机组成原理答?张功?顾一禾等编著 - 百度文库

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ʮֵN(216215214213)152131228801.875216 2.14 1e112SN??2e222SN???1 e1e2ǷN1N2

2 S1S2ΪǷȷ 𣺣1һ 2ȷ

2.15 һλСx0.a1a2a3a4a5a6x0ش 1 Ҫx81a1a2a3a4a5a6Ҫʲô 2 Ҫx21a1a2a3a4a5a6Ҫʲô

3 Ҫ41x161a1a2a3a4a5a6Ҫʲô ⣺

1Ҫx

8 1

a1a2a3a4a5a6Ҫ㣺a1a2a3һ1 2Ҫx

2 1

a1a2a3a4a5a6Ҫ㣺a11a2a3a4a5a6һΪ1Ϊȫ0 3Ҫ

4 1

x

16 1

a1a2a3a4a5a6Ҫ㣺

a10 a21a3a4a5a6Ϊȫ0 a20a31a4a5a6

a20a30a41a5a6һΪ1

2.17 ֱǰִָǶִѹʮʽʾʮ 1 74 2 639 3 2004 4 8510 ⣺

1 74 ǰִָ 74

2B 37 34 + 7 4

Ƕִ 74

37

34 7 4

ѹʮ 74

0000 0111 0100 1100 0 7 4 +

2 639 ǰִָ 639

2D 36 33 39 - 6 3 9

Ƕִ 639

36 33 79 6 3 9

ѹʮ 639

0110 0011 1001 1101 6 3 9 -

3 2004 ǰִָ

2004

2B 32 30 30 34 + 2 0 0 4

Ƕִ 2004

32 30 30 34 2 0 0 4

ѹʮ 2004

0000 0010 0000 0000 0100 1100 0 2 0 0 4 +

4 8510 ǰִָ 8510

2D 38 35 31 30 -

8 5 1 0

Ƕִ 8510

38 35 31 70 8 5 1 0

ѹʮ 8510

0000 1000 0101 0001 0000 1101 0 8 5 1 0 -

2.19 ʲôǡࡱУʲôϵ

ָһκ֮Сľ롣

УУλԽ࣬Խ󣬱ļ;Խǿ

2.21 ַASCII룩ļһһĺУ루żУ飩ǷддԸдӦȷASCIIַ 1 10111010011 2 10001010110 ⣺

1 ָΪ

E1P1A6A5A3A2A01111011 E2P2A6A4A3A1A00101110 E3P4A5A4A311011 E4P8A2A1A000110

õָΪE4E3E2E10101(5)10ʾյĺУе5λϵ˴󡣽5λϵA51ȡɵõȷ 10110010011ȷASCIIַΪ1001011K 2 ָΪ

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ʮֵN(216215214213)152131228801.875216 2.14 1e112SN??2e222SN???1 e1e2ǷN1N2 2 S1S2ΪǷȷ 𣺣1һ 2ȷ 2.15 һλСx0.a1a2a3a4a5a6x0ش 1 Ҫx81a1a2a3a4a5a6Ҫʲô 2 Ҫx21a1a2a3a4a5a6Ҫʲô 3 Ҫ41x161a1a2a3a4a5a6Ҫʲô ⣺ 1Ҫx 8 1 a1a2a3a4a5a6Ҫ㣺a1a2a3һ1 2Ҫx 2 1

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