9 Jan
2012
9 Jan
'12
10:20 p.m.
On Jan 9, 2012, at 4:46 PM, David Riley <fraveydank at gmail.com> wrote:
On Jan 9, 2012, at 4:03 PM, Eric Smith wrote:
I've done it between Suns and RS/6000s. It works fine. I've no reason to
expect Macs to be any different there.
-Dave
--
Dave McGuire
New Kensington, PA
dwight elvey wrote:
Both of these, of course, were why Open Firmware's boot code was tokenized Forth
(they called it FCode). In theory, you could boot the same card in a Sun as in a PowerPC
Mac, though I imagine that seldom worked as well as anyone intended; anyone ever tried?
What a horrible thing to do with Forth but I see
why one might want to do something like that.
If you're referring to token-threading, there are a lot of good reasons for it. Two
of the most obvious:
1) Code density: the tokens for the most common Forth words are a single byte.
2) Portability: the mainframe ROM tokens don't change when the ROMs are revised, so
programs in plug-in ROMs aren't dependent on the addresses of the Forth words in the
mainframe ROM remaining constant. This also applies to cases where one plug-in ROM calls
another.