Sunday, 29 March 2015

Well, I can load the ROM into the DDR RAM now ...

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I'll refrain from saying, again, how much I am despising DDR RAM compared with SRAM or SDRAM.  There. Now, the good news is that I hav...
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Thursday, 26 March 2015

GHDL Simulation is working again, making it much easier to track down DDR controller bugs

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Oh a happy day it will be when the DDR controller is working and I can ignore it for, hopefully, a very long time.  That day feels closer no...
Wednesday, 25 March 2015

Hypervisor Upgrading and DDR Memory Lockup-fix

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I continue to pull my hair out with the DDR controller -- but it does seem that I have fixed the bug that would cause the DDR controller to ...
Friday, 20 March 2015

Getting closer on the DDR memory front

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The DDR2 memory interface continues to amaze me in the fascinating ways that it almost works. Today, I had the thought to make the CPU wa...

Improving the hypervisor environment

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I have a project student who will be doing some work on the hypervisor this year.  The focus of his project is to make a hypervisor environm...
Monday, 9 March 2015

I still don't like passing signals between clock domains

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I am still working on the DDR memory interface for the C65GS. It feels like it should have been finished ages ago.  However, as I have go...
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Friday, 6 March 2015

The Commodore 64C Case moulds still exist!

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... and there is a kickstarter campaign to make some new original cases: https://www.kickstarter.com/projects/1670214687/original-commodor...
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