🚀 go-pugleaf

In article <3191@cs.utexas.edu> bryan@cs.utexas.edu writes:
   >
   >couple of pins on the Amiga parallel port.  My questions ar:
   >
   >
   > 2. (for comp.sys.amiga.techies) Does anyone have any example code of
   > twiddling the Amiga's 8520s?  The old, first-edition RKM/hardware manual
   > published by C-A lists only the physical addresses for the 8520's
   > registers.  While I don't see any reason for the memory map to change,
   > I'd like my code to run on my A3000 :-) Is there a more approved way
  > to get at these registers than to use a hardcoded address?

Yes, Phillip Lindsay of CBM wrote a program call PAROUT that
demostrated how to talk to the bits on the parallel port "nicely".
It used system resources and it's the way CBM would like us
programmers to use.  If you don't have it I can mail it to you --
it's not that large.

Myself, I'd like to know if the parallel port signals (i.e. 8520
output pins) are TTL compatable or am I going to have to do some
level translations before it gets to my circuit's latch?

			-Rusty-
-- 
Rusty Haddock {uunet!likewise,cbosgd,rutgers!mtune}!hocpa!rusty
AT&T Consumer Products Laboratories - Human Factors Laboratory
Holmdel, New Joyzey 07733   (201) 834-1023  rusty@hocpa.att.com