Date: Thu, 30 Oct 1997 11:29:50 -0800 From: Jonathan Mini <mini@d198-232.uoregon.edu> To: Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE> Cc: freebsd-emulation@FreeBSD.ORG Subject: Re: pcemu - unimpl opcodes / NOGO Message-ID: <19971030112950.48455@micron.mini.net> In-Reply-To: <199710301709.SAA20511@gil.physik.rwth-aachen.de>; from Christoph Kukulies on Thu, Oct 30, 1997 at 06:09:14PM %2B0100 References: <199710301709.SAA20511@gil.physik.rwth-aachen.de>
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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 <kuku@gilberto.physik.RWTH-Aachen.DE> stands accused of saying: > pcemu > isdn-kukulies# pcemu <window pops up> > 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."
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