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I was also planning to try and run it on my simulator. I'm not
really keen on the memory map (48K program space max, with some of
it being sub-optimal (paged during syscalls)), but it does seem
that it would work with the H8-512K board. Of course, no apps for
it.
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I was always a little frustrated at the solution we evolved to for Y2K on HDOS. As you mentioned, core HDOS is Y2K compliant – it’s just SYSCMD (and PIP) that didn’t bother to handle date i/o properly (CAD.ACM and DAD.ACM in the source code). All credit to Stan Webb for his patch that augments the date by 70 years but it is a kludge that breaks old date handling.
Subdirectories make sense but the trick will be to not bloat the OS. HDOS 3 did a nice job of adding useful stuff but keeping the memory footprint manageable.
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Mark Garlanger
Sent: Thursday, November 17, 2022 1:14 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] Z80 gets a new OS
On the subject of OSes, since we have the HDOS source, I would love to start with the latest 3.0 source and add on to it. Some of the things I was thinking about: making it Y2K compliant, since the date field actually has an extra bit, so it could represent dates up to 2097.
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