求教 CS SUB 一道题

litsquirrelUID: 2151090

During instruction interpretation, a processor may be in three states:
Fetch, Defer(for indirect addressing), Execute

The interpretation of an instruction involves one of the following sequences of states:
Fetch only
Fetch followed by Execute
Fetch followed by Defer followed by Execute

The connectivity matrix for the state of this professor is
(The answer is )
1  1  1
0  0  1
1  0  1

我不明白这个matrix是怎样得到的，请指教 , 谢谢!

maverick2005UID: 2104907

把下面这三个分别标成1,2,3
1 Fetch
2 Defer
3 Execute
得到一个 3X3 的矩阵 0表示之间没有前后联系 1表示有 所以你给的答案有问题 感觉下面的更合理
111
001
100

MichelleBondUID: 188957

\  F  D  E
F 1  1  1
D 0  0  1
E 1  0  0

列的元素后面可以接行的元素, 就为1
F后可接3种
D后只能接E
E后可直接跟F, 但不能接D, E也不可直接连E吧?

哦, 同二楼

个人理解

[ Last edited by MichelleBond on 2005-11-3 at 23:54 ]

litsquirrelUID: 2151090

谢谢
我原来也是这样认为的，看了答案反而一头雾水