-127补 = 10000001 -127反 = 10000000 -127移 = 00000001(4)-1原 = 1000 0000 -1补 = 1000 0000 -1反 = 1111 1111 -1移 = 0000 0000 (5)-1 = -00000001 -1原 = 1000 0001 -1补 = 1111 1111 -1反 = 1111 1110-1移 = 0111 11112x补 = a0. a1a2a6解法一、(1)若a0 = 0, 则x 0, 也满足x -0.5此时a1a6可任意(2)若a0 = 1, 则x -0.5, 需a1 = 1即a0 = 1, a1 = 1, a2a6有一个不为0解法二、 -0.5 = -0.1(2) = -0.100000 = 1, 100000(1)若x = 0, 则a0 = 0, a1a6任意即可x补 = x = a0. a1a2a6(2)若x 只需-x 0x补 = -x, 0.5补 = 01000000即-x补 时, n=1时, , 则可见n1时TsTp,故流水线有更高吞吐量16.(1)写后读 RAW (2)读后写 WAR (3)写后写 WAW17.(1)第六章1. 单总线结构: