[rescue] The aesthetics of rescue

[Scott Newell]

[...lots of good perq stuff snipped...]

>microcycle time, 16k of writable control store for user-loadable custom
>microcode, 256 general purpose 20-bit registers, a 16-level expression

I've read the some of the VAX or PDP machines also had user modifiable
microcode.  Did anyone ever use it (custom microcode) for anything?  

Is the (PALcode?) for Alpha similar to writable control store?  Again, does
anyone ever modify it?


newell