Post AXry0qZDV7LbE4cbce by jfmezei@mstdn.ca
(DIR) More posts by jfmezei@mstdn.ca
(DIR) Post #AXry0qZDV7LbE4cbce by jfmezei@mstdn.ca
2023-07-20T00:52:13Z
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@HoffmanLabs @RichardNairn OK, 360 did fail on fixed length instructions since it has short ones (register to register), medium one (register to RAM) and I think a couple that were ram to ram. I had forgotten about that and just thought they were all processed as 32 bits with some instructions not using bits not needed. So if the fetcher does need to look at the opcode to know hwo many bytes follow in that instreuctions, then yea, not RISC.
(DIR) Post #AXry0rMqWb2vhzqEym by penguin42@mastodon.org.uk
2023-07-20T00:54:12Z
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@jfmezei @HoffmanLabs @RichardNairn But that's very much the Thumb model on ARM as well; short and long instructions; not really that much different.