缺省行为是对两个输出条件执行AND操作。

The default behavior is to perform an AND on the two output criteria. In order to make the simulation work, you need to do the following.

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尝试谷歌arm条件执行或说明。

Try to Google ARM conditional execution OR instructions.

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一种简单的机制，用来指定条件执行和任务选择。

A simple mechanism for specifying conditional execution and task selection.

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So the open curly brace followed by the closed curly brace means everything inside of these curly braces should get executed, but only if that first condition is actually true.

所以左花括号后面跟着,右花括号，这意味着花括号里面所有的代码,都应该是要被执行的，但只有当第一个条件是正确的。

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You can say if this is true, then go and do the following pieces of code or puzzle pieces that are inside this part of the block, else go ahead and do these that are down here.

你可以说如果条件成立，执行下面的代码段,或板块中的拼图，否则跳过去执行这下面的语句。

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If you want to make sure both conditions are true and they both have to be true for any code to be executed, use ampersand ampersand.

如果你想保证两个条件都成立,或者它们两个都必须为真值，才能执行一些代码，那就使用“&&“

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