八 23
(1) 补全下面的程序，使其可以将10000H~1000FH中的8个字，逆序复制到20000H~2000FH中。逆序复制的含义如图3.17所示（图中内存里的数据均为假设）。
图3.17 逆序复制示意图
mov ax, 1000H
mov ds, ax
mov ax, 2000H
mov ss, ax
mov sp, 0010H
push [0]
push [2]
push [4]
push [6]
push [8]
push [A]
push [C]
push [E]
(2) 补全下面的程序，使其可以将 10000H~1000FH 中的8个字，逆序复制到20000H~2000FH中。
mov ax, 2000H
mov ds, ax
mov ax, 1000H
mov ss, ax
mov sp, 0000H
pop [E]
pop [C]
pop [A]
pop [8]
pop [6]
pop [4]
pop [2]
pop [0]
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