3 ms·
>If [...] but neither does anyone else, then it's just a part of the hardware That has never been the case, for practical manufacturing reasons. >As soon as
by ksk 11y ago
>If [...] but neither does anyone else, then it's just a part of the hardware
That has never been the case, for practical manufacturing reasons.
>As soon as the microcode is writable, then we have questions:
It has been writable for more than a decade I think.
- kazinator 11y agoUh, microcode has been around since the 1960's! Any aspect of the machine which is data-driven is de facto hardware if that data is fixed in read-only memory. Consider than an AND gate can just be memory. The two inputs can be treated as a two bit address: 00, 01, 10, or 11. If we stuff in the values 0, 0, 0, 1 into the 1-bit content cells at these addresses, we have an AND gate. If this memory is ROM, then the overall circuit is not distinguishable from a conventional AND gate where a few transistors do the signaling directly.