21 Mar
2002
21 Mar
'02
3:43 p.m.
D'oh! I feel stupid. Don't ask me why I read 65xx with you asked about
805x. I've been writing 805x for about 15 years, and I've never run across
one. I've though about writing one from time to time, but never got around
to it. Since I usually have a pretty tight embedded system, I use all host
side tools. If you write one, I'd be interested in looking at it.
--John
-----Original Message-----
From: owner-classiccmp(a)classiccmp.org
[mailto:owner-classiccmp@classiccmp.org]On Behalf Of Ben Franchuk
Sent: Friday, March 22, 2002 0:05 AM
To: classiccmp(a)classiccmp.org
Subject: Re: Source code for 805x line-by-line assembler?
John Chris Wren wrote:
The reason for that is generally memory. The Apple II
monitor had a nice
little one built in, and it was a work of art, as
far as the opcode
compression and decoding table went. One time (many years
ago), I stripped
that portion out of the Apple monitor for another
personal project. You
could do the same. It wasn't very difficult to do, just a bit
of typing.
The 6502 has a very simple and regular instruction set that is easy to
encode.
What is 805x controler like?
> The 805x microcontrollers have been around
since the mid-80's,
> yet I've never
> seen a monitor program for them with a "quick-and-dirty" line-by-line
> assembler in it as many of the debuggers for the MOT monitors
> have. Do any of
> you guys have a source file of a line-by-line assembler for the
> 805x series
> that can easily be adapted for inclusion in a monitor?
Lets not forget a version of basic for the apple was all hand coded with
no real source?
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html