2025-10-31 14:39:59 <veltas      > MrMobius: Is strikes me that it's a very strange thing to add a 24-bit option on what's essentially still an 8-bit architecture, I wonder how useful that was to anyone
2025-10-31 14:40:47 <MrMobius    > maybe they had it there for address calculations anyway so just reusing it
2025-10-31 14:41:07 <veltas      > I think that must be it
2025-10-31 14:51:03 <MrMobius    > the original z80 had a 4 bit accumulator iirc so 8  bit adds happened in chunks
2025-10-31 14:54:32 <veltas      > Typical 8-bit processors of the day were 1MHz to 2MHz, the Z80 you'd often see clocked higher at e.g. 3.5MHz in ZX Spectrum.  I don't really know why or how they achieved that, but it makes up for the relatively long pipeline a bit
2025-10-31 14:55:42 <veltas      > I know that generally that's about the rate that things like open-drain signalling breaks down, it seems that a few tricks were needed to go beyond around 4MHz reliably
2025-10-31 14:56:02 <veltas      > Sure it's an interesting bit of history to someone who understands electronics better than me
2025-10-31 15:05:34 <cleobuline  > forthBot:  S" un affreux monstre avec des yeux glouleux et des tentacules "S IMAGE
2025-10-31 15:05:50 <forthBot    > https://i.ibb.co/mCn1P7DW/mforth-image-Zv-UOe8.png
2025-10-31 15:06:17 <cleobuline  > c'est moi ça !
2025-10-31 15:06:47 <cleobuline  > les bons jours seulement , sinon , c'est pire
2025-10-31 17:05:50 <forthBot    > Environment for cleobuline inactive, freeing...
2025-10-31 17:34:38 <lispmacs[work]> just browsing ebay, wondered if somebody here might find this interesting:
2025-10-31 17:34:41 <lispmacs[work]> https://www.ebay.com/itm/297718837437
2025-10-31 17:35:15 <lispmacs[work]> more interested in analog computers, myself