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πŸ‡ΊπŸ‡¦ haxadecimal

@kenshirriff The 43201 microcode can be dumped electrically without decap, and I've done that for a release 1 C43201. Unfortunately the 43201 and 43202 contain many PLAs which (AFAIK) can't be dumped other than by decap and photomicrograph.

20 Apr 2023 at 17:48 | Wall-to-wall | Open on mastodon.social
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Ken Shirriff

@brouhaha Have you decoded any of the 43201 microcode?

20 Apr 2023 at 17:53 | Open on oldbytes.space
πŸ‡ΊπŸ‡¦ haxadecimal

@kenshirriff Only a tiny amount. I'll try to find time to put what I've got into a GitHub repo.
Most of the microcode implements the high-level instructions, which are quite complex. I haven't been able to figure out any of those yet.

20 Apr 2023 at 17:56 | Open on mastodon.social
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