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util/misc/acopro.lha

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Showing:m68k-amigaosppc-amigaosppc-morphosi386-arosi386-amithlonppc-warpupppc-powerupgeneric
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Short:68881 fpu emulator (source)
Author:Azalin
Uploader:c gujahr gmx de
Type:util/misc
Version:1.0B
Requires:020+
Architecture:generic
Date:2006-09-01
Download:http://aminet.net/util/misc/acopro.lha - View contents
Readme:http://aminet.net/util/misc/acopro.readme
Downloads:2769
Please note: this program _will_ hang your computer and I am in no
way responsible for what happens. When you run this program and your
computer hangs or something else happens it is your own fault! The
program fools AIBB and Sysinfo (they hang your computer, because NOPs
get generated instead of floating point ops, you get no guru and the
computer just appears to do nothing, or maybe it will crash
spectacularly). That's why I didn't include an executable. The other
reason is that my Amiga is currently in a box so I couldn't compile
it anymore (and I don't have a monitor temporarily so that's another
problem). The 'working' part of the sources is that short asm file
(okay I'm definitely not proud of it but it took me some time digging
through manuals to find the info I needed, mainly because I didn't
have the good books though). The actual original intention was that
the program would emulate the fpu on the PowerPC 603e for the
fpu-less 040 or 030 in the original announced Blizzard PowerUP
boards. Perhaps this still can be done, perhaps it's faster to
emulate everything on the PPC because there's less overhead of
communication between processors.

History: I began writing this as I didn't feel like re-installing
all kinds of software that required a floating point unit. This was
when I sold my 68881 and memory card and waited for the Blizzard
1230/50 to come out. When it came out I stopped writing the program.
I have included a bit of floating point emulation in c++ from the
Amiga emulator for people who want to continue this project. (Oh
well, it's only a few lines long but it did work a little.) My
Amiga's are: Amiga 3000 (only a harddisk in it), Amiga 1200
(unexpanded, I sold all peripherals and the harddisk is the
swapdisk in my -non-Intel- PC on which I run UAE sometimes).


Contents of util/misc/acopro.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
-rw-r--r--   759/106      1448    2713  53.4% -lh5- 89e0 Apr 24  1999 acopro.html
-rw-r--r--   759/106       196     294  66.7% -lh5- a529 Dec  3  1996 copro.asm
-rw-r--r--   759/106       615    1354  45.4% -lh5- f18d Dec  3  1996 copro.c
-rw-r--r--   759/106      4691   28130  16.7% -lh5- d6a1 Mar 10  1997 fpp.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         4 files    6950   32491  21.4%            Sep  1 16:35

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