AMD 2901 Microcode Meta-Assembler

From: Dwight K. Elvey <dwightk.elvey_at_amd.com>
Date: Wed May 22 16:55:34 2002

>From: "Ken Seefried" <ken_at_seefried.com>
>
>
>Does anyone know of a free or cheap, usable meta-assembler for AMD 2901
>microcode? Or anyone have one they want to get rid of?
>
>Ken
>

Hi Ken
 I wrote one once in Forth for a 2901 project. It was relatively
trivial ( at least in Forth since the essense of Forth is
to change Forth into the application and not to write the
application in Forth ). It would be difficult to have a
good general purpose meta-assembler since the variety of
ways to wire up a bitslice are so great that a "one size
fits all" would be difficult.
 In my case, I just coded up the bit fields of my controller
( some of the bits ran outside hardware ) with meaningful
names. It put things into a binary image file that I
first blew EPROMs with and later, after debug, faster ROMs.
 I was years ago but these really are not that hard to write.
Dwight
Received on Wed May 22 2002 - 16:55:34 BST