8 Feb
2012
8 Feb
'12
9:25 p.m.
On 02/07/2012 07:37 PM, allison wrote:
The biggest thing to watch for in PDP8 code is
recursion as you
need a software stack and handler to preserve data/addresses.
The DECmates had the 6120 and that implemented IOTs to create
a address and data stack( hardware can be built to do that in
any omnibus 8). The unique PDP-8 IO made doing things like that
more common than would be guessed.
Yeah, heck...plugging in a board can actually add instructions to the
instruction set! Great stuff.
-Dave
--
Dave McGuire
New Kensington, PA