arrays - 在 HDL 中处理数组

Question

如何在 HDL 中使用数组(代表总线)？

例如，我有以下代码:

/**
 * 16-bit bitwise And:
 * for i = 0..15: out[i] = (a[i] and b[i])
 */

CHIP And16 {
    IN a[16], b[16];
    OUT out[16];

    PARTS:
    // Put your code here:
}

假设我已经实现了And，我该如何实现它？

我不想有以下内容:

And(a=a[0],b=b[0],out=out[0]);
And(a=a[1],b=b[1],out=out[1]);
...
And(a=a[14],b=b[14],out=out[14]);
And(a=a[15],b=b[15],out=out[15]);

Answer 1

There are no arrays in HDL.在 nand2tetris companion book 的第 1.3 节中，他说

Since we already know how to implement the elementary versions of these gates, the implementation of their n-ary versions is simply a matter of constructing arrays of n elementary gates, having each gate operate separately on its bits. This implementation task is rather boring, but it will carry its weight when these multi-bit gates are used in more complex chips, as described in subsequent chapters.

因此，除了用 Python 编写一个简单的脚本来避免所有输入之外，您不会遗漏任何内容。