Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Programming > Forth > Re: Z80 CP/M Fo...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 12 of 31 Topic 3933 of 4289
Post > Topic >>

Re: Z80 CP/M Forth & loading code from disk

by Duke Normandin <dukeofperl@[EMAIL PROTECTED] > Mar 23, 2008 at 02:47 AM

On Sat, 22 Mar 2008, Bruce McFarling wrote:

>
>
> On Mar 21, 3:15 pm, Duke Normandin <dukeofp...@[EMAIL PROTECTED]
> wrote:
> > I see! So if I'm going to play with a native Forth, I had better
dedicate
> > an entire box to it just to be safe. ;)
>
> That's one approach ... but also remember that a lot of 70's era "the
> rest is left as an exercise to the reader" code ends up meaning that
> the rest was never actually done. If you have an old fa****oned raw-
> blocks Forth, and it only knows about the floppy disk drive at the
> outset, and you never put in the code to let it know about the hard
> drive, its never going to know that its there.

I was thinking more along the lines of one of Albert Van der Horst's
native Forths.

> ...
> > Got it! So originally, this was true of Forth and more-or-less all the
> > hardware that it ran on ;) Iotas of RAM and not much better mass
storage.
> > So you had to find ways to cut "costs" like crazy!
>
> "Originally" it ran on minicomputers, back when minicomputers had less
> processing power than we would expect to find in a good personal
> printer today. Hence the strong emphasis on multi-tasking.
>
> But the big proliferation of public domain implementations in the
> early days of the microcomputer revolution was almost always trying to
> doing a lot in what we would see today as a tiny smidgen of space. I
> spent $1,000 to get a Commodore 64 with 94K of memory (64K RAM, 8K
> BIOS ROM, 8K Basic ROM, 4K character ROM) and a 6502 1Mhz processor,
> plus a 5.25" disk drive with 170K capacity on a plug and play serial
> daisychain interface where Commodore had either specified the protocol
> wrong or build their interface chip wrong so that it couldn't be run
> on serial hardware but had to be bit-banged at glacially slow speed.

I bought my first computer in 1981/82 ?? An Apple ][e clone from Taiwan.
It s****ted dual CPUs -- a 6502 and a Z80. I ran CP/M as well. I wish that
I had heard of Forth back then. I'm told that there even was a FIG here in
Calgary ;( Maybe it just that I was too interested in playing LodeRunner!
:))
-- 
Duke Normandin
dukeofperl@[EMAIL PROTECTED]
 Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
 




 31 Posts in Topic:
Z80 CP/M Forth & loading code from disk
"John Crane" &l  2008-03-19 12:02:30 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-19 11:56:51 
Re: Z80 CP/M Forth & loading code from disk
ehramm@[EMAIL PROTECTED]   2008-03-19 22:09:57 
Re: Z80 CP/M Forth & loading code from disk
Udo Munk <umunk@[EMAIL  2008-03-20 20:52:00 
Re: Z80 CP/M Forth & loading code from disk
Udo Munk <umunk@[EMAIL  2008-03-20 20:48:08 
Re: Z80 CP/M Forth & loading code from disk
"John Crane" &l  2008-03-20 15:25:15 
Re: Z80 CP/M Forth & loading code from disk
Elizabeth D Rather <er  2008-03-20 17:40:27 
Re: Z80 CP/M Forth & loading code from disk
_ <jtayNOSPAMlor@[EMAI  2008-03-20 23:18:03 
Re: Z80 CP/M Forth & loading code from disk
Udo Munk <umunk@[EMAIL  2008-03-21 14:55:31 
Re: Z80 CP/M Forth & loading code from disk
Duke Normandin <dukeof  2008-03-21 15:18:37 
Re: Z80 CP/M Forth & loading code from disk
Duke Normandin <dukeof  2008-03-21 19:15:01 
Re: Z80 CP/M Forth & loading code from disk
Duke Normandin <dukeof  2008-03-23 02:47:08 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-20 17:24:51 
Re: Z80 CP/M Forth & loading code from disk
Jerry Avins <jya@[EMAI  2008-03-20 21:09:09 
Re: Z80 CP/M Forth & loading code from disk
"John Crane" &l  2008-03-21 10:19:01 
Re: Z80 CP/M Forth & loading code from disk
"Jenny Brien" &  2008-03-21 20:32:29 
Re: Z80 CP/M Forth & loading code from disk
Albert van der Horst <  2008-03-22 17:49:45 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-20 18:43:05 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-21 07:06:33 
Re: Z80 CP/M Forth & loading code from disk
Tarkin <Tarkin000@[EMA  2008-03-21 08:47:38 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-21 09:37:51 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-21 09:56:49 
Re: Z80 CP/M Forth & loading code from disk
"John Crane" &l  2008-03-21 12:01:56 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-21 20:51:38 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-22 07:31:37 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-22 09:18:04 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-22 09:43:52 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-03-22 16:48:01 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-04-09 09:06:26 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-04-09 09:13:26 
Re: Z80 CP/M Forth & loading code from disk
Bruce McFarling <agila  2008-04-21 11:46:53 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Tue Oct 14 11:16:37 CDT 2008.