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Last visit was: Thu May 01, 2025 9:06 pm
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It is currently Thu May 01, 2025 9:06 pm
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oldben
Joined: Mon Oct 07, 2019 2:41 am
Posts: 768
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A new year, a New computer.
Since the 18 bit computer is mostly working, I am
stretching the computer to 20 bits. The data path is now 10 bits
rather than 9 bits. Just the ALU card and mother board is planned for now.
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| Sat Jan 04, 2025 9:46 pm |
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oldben
Joined: Mon Oct 07, 2019 2:41 am
Posts: 768
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Mother board
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| Wed Jan 08, 2025 7:38 am |
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oldben
Joined: Mon Oct 07, 2019 2:41 am
Posts: 768
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The memory io card.
64KB user 64KB system 16Kb rom
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| Thu Jan 16, 2025 10:21 am |
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oldben
Joined: Mon Oct 07, 2019 2:41 am
Posts: 768
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And some new 18 bit boards. Hopefully better layout.
Now going with the "No Logic" brand. Added SPI card interface (DISK) and 300 hz timer IRQ.
Still waiting for parts for the 20 bit PCB's.
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| Sun Jan 19, 2025 10:06 am |
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oldben
Joined: Mon Oct 07, 2019 2:41 am
Posts: 768
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Created a 18 bit word addressed memory card so I can go back to 1969, err hack to 1969.
Byte operands other than byte # is planned to be indirect. I now get the full 18 bits of memory.
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| Mon Jan 20, 2025 8:45 am |
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