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Software-processed floating point routines | 661 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
Amiga Rulz!
Authored by: Anonymous on Friday, March 29 2013 @ 09:01 AM EDT
I think here is your answer:

"Look at many ideas. Pick an outstanding one."

The key is where do the ideas come from? I think they are
just combing the Internet for "things" and then figuring
out how to reduce them down to basic terms. Then they
write a wiz-bang patent applications, knowing that the
USPTO is too stupid to see through the smoke and mirrors.

Not only are they trolls, but they really do steal ideas.

[ Reply to This | Parent | # ]

Unix PC, Too
Authored by: lnuss on Friday, March 29 2013 @ 09:36 AM EDT
The AT&T Unix PC used a 68010, also, running Unix. It also had a C compiler
with floating point libraries.

---
Larry N.

[ Reply to This | Parent | # ]

Software-processed floating point routines
Authored by: Anonymous on Friday, March 29 2013 @ 03:15 PM EDT
Just as a curiosity, I have on my desk pages 94 and 95 of
the 1978 Apple II Reference Manual.

The header box reads:

APPLE-II FLOATING POINT ROUTINES.
COPYRIGHT 1977 BY APPLE COMPUTER INC.
ALL RIGHTS RESERVED.
S. WOZNIAK

And there it is, the Apple II's floating point stuff. (Which
wasn't in Integer Basic, but you could [with sufficient
swearing & workarounds] shove it into the top of memory,
POKE your operands onto page zero, CALL the routine, and
PEEK at the results.)

The whole set is 568 bytes, and even with the included
documentation, I doubt anyone at Uniloc would understand it.

[ Reply to This | Parent | # ]

80386 and friends
Authored by: Anonymous on Friday, March 29 2013 @ 05:17 PM EDT
The 386 like the 68030 was (probably?) the last chip to come without
a builtin fpu. I remember 68030 Macs shipping with an empty socket
on the mobo. Plugin a 68882 fpu and a lot of software ran faster and
sweeter. There were some apps that point blank refused to use the
Mac ROM toolbox fp routines.

Maybe Uniloc found somebody using an old 386 supportive version
of Red Hat.

[ Reply to This | Parent | # ]

Floating point processing since early 1900s
Authored by: Anonymous on Sunday, March 31 2013 @ 04:48 PM EDT
In computers since 1938 at least (Z1).

[ Reply to This | Parent | # ]

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