From owner-freebsd-emulation Thu Oct 30 11:30:32 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id LAA02524 for emulation-outgoing; Thu, 30 Oct 1997 11:30:32 -0800 (PST) (envelope-from owner-freebsd-emulation) Received: from d198-232.uoregon.edu (d198-232.uoregon.edu [128.223.198.232]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id LAA02517 for ; Thu, 30 Oct 1997 11:30:28 -0800 (PST) (envelope-from mini@d198-232.uoregon.edu) Received: (from mini@localhost) by d198-232.uoregon.edu (8.8.5/8.8.5) id LAA27014; Thu, 30 Oct 1997 11:29:51 -0800 (PST) Message-ID: <19971030112950.48455@micron.mini.net> Date: Thu, 30 Oct 1997 11:29:50 -0800 From: Jonathan Mini To: Christoph Kukulies Cc: freebsd-emulation@FreeBSD.ORG Subject: Re: pcemu - unimpl opcodes / NOGO References: <199710301709.SAA20511@gil.physik.rwth-aachen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.85e In-Reply-To: <199710301709.SAA20511@gil.physik.rwth-aachen.de>; from Christoph Kukulies on Thu, Oct 30, 1997 at 06:09:14PM +0100 X-files: The Truth is Out There Sender: owner-freebsd-emulation@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk It looks like what's happening is that the boot sector on that disk doesn't contain any boot code. Offhand, I'd say that it's not really a DOS 3.2 disk. (0000:7c00 is the boot strap location. The first sector of the disk is read into there and executed. 0000:B8008 is in the videomemory of the CGA/EGA/VGA when in text mode. So, it's trying to run the contents of the simulated text mode) Christoph Kukulies stands accused of saying: > pcemu > isdn-kukulies# pcemu > Error: Unimplemented opcode 37 at cs:ip = 0000:7C04 > Error: Unimplemented opcode 37 at cs:ip = 0000:7C04 > Error: Unimplemented opcode 3F at cs:ip = 0000:FFFB > Error: Unimplemented opcode 37 at cs:ip = 0000:7C04 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > Error: Unimplemented opcode 6D at cs:ip = 0000:B8008 > > And so on. > (it was difficult to fins a 720 K floppy and the only one I could find > was one from a box of ATARI diskettes which was labeled DOS 3.2 ) > > -- > Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de -- Jonathan Mini Ingenious Productions Software Development P.O. Box 5693, Eugene, Or. 97405 "A child of five could understand this! Quick -- Fetch me a child of five."