Subject: Re: PC emulation.
To: Richard Rauch <rkr@olib.org>
From: =?ISO-8859-1?Q?Timo_Sch=F6ler?= <ml@macfinity.net>
List: netbsd-help
Date: 01/09/2004 13:01:08
hi,

>> I'm surprised that nobody has come out with a complete PC on a PCI=20
>> card
>> option, perhaps using a 2.5 disk. Then, with the proper interface=20
>> built
>
> As others have said, this has been done (so it's a good idea! (^&).
> I would add, for more completeness, that I believe that the Mac might
> have had one of these a few years ago.  I know that the Amiga had one,
> using its proprietary Zorro II bus in the A2000 model. (...)

apple built some cards; the service manual reads (excerpt):

Overview The PC compatibility cards are for use with Power  Macintosh=20
models having peripheral component interface  (PCI) expansion slots. =20
They allow MS-DOS and Windows  applications to run directly on a Power=20=

Macintosh computer. There are several types of Apple PC Compatibility=20
cards, and  installation procedures differ for each: =9512-inch 100 MHz=20=

card: features a 100-MHz Pentium  processor =957-inch 100-MHz card:=20
features a 100 MHz 5x86  processor =9512-inch 166 MHz-P card: features a=20=

166 MHz Pentium  processor =9512-inch PR166 card: features a 166=20
performance rated  (PR) 6x86 processor

General Compatibility Information The original 100 MHz PC compatibility=20=

cards (7-inch and  12-inch) are compatible with the following software=20=

and  equipment: =95Microsoft MS-DOS 6.22 =95Windows 3.1 =95Windows for=20=

Workgroups 3.11 =95Windows 95 ( not  compatible with WindowNT or OS/2)=20=

=95Sound Blaster-16 =95Apple displays =95Most third-party VGA and SVGA=20=

displays =95Power Macintosh 5400, 6400 (7-inch card only),  7200, 7500,=20=

7600, 8500, and 9500 series computers

i put an pdf (the service manual) for those interested here:

http://www.macfinity.net/downloads/stuffa/pc_compatibility_card.pdf=20
(it's about 15MByte!)

maybe there were even some newer (more powerful) cards, but i don't=20
remember them. apple tech source would know for sure. but anyway. who=20
wants x86? ;)

regards,

timo=