disassembling Western Digital microcode (PDP-11, WD16, Pascal Microengine)

Rob Doyle radioengr at gmail.com
Fri Dec 25 03:31:55 CST 2015

On 12/25/2015 1:56 AM, Eric Smith wrote:
> The disassembler probably needs a lot of work to be truly usable. It
> does not even attempt to produce code that could be assembled by
> DEC's "MICRO" microassembler that is in the KUV11 writable control
> store support software, or any other assembler or microassembler. (I
> don't have the KUV11 support software, but would *really* like to
> obtain a copy!)

I'm not sure that this is any help, but...

The DEC "micro.exe" microassembler was also used to build the KS10
microcode. The source code and executable is available on tape from:


I've used it to rebuild the KS10 microcode from source.

Rob Doyle.

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