(C) Copyright 1993, 1994 By Harald Feldmann Revision 04, Nov 3rd 1994.




Hamarsoft's 86BUGS list, (C) 1993/94 By Hamarsoft (R)
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The 86BUGS list, distributed with Ralf Brown's Interrupt list, is maintained
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To contact Hamarsoft, write to │ or send e-mail over Internet to:
│ harald.feldmann@almac.co.uk
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Harald Feldmann, │ or send e-mail to HARALD FELDMANN over
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Various people have contributed to this list. They are mentioned in a
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Hamarsoft and all people who contributed to the 86BUGS list do not accept
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This is 86BUGS list revision level 04, issued November 3rd 1994.
(C) Copyright 1993, 1994 By Harald Feldmann.




Acknowledgements
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This file lists undocumented and buggy instructions of the Intel 80x86
family of processors as well as features of processors compatible with
Intel products. Note that Intel does not support the special features and
may decide to drop opcode variants and instructions in future products.
Wherever the notation 88,86,87,186,286,287,287xl,386,386sx,387,387sx,
486,486sx,487 and Pentium is used, Intel CPUs are referenced unless
noted otherwise.

All mentioned trademarks and/or tradenames are owned by the respective
owners and are acknowledged.

I would like to give credit to those who provided useful information or
who in another way contributed to the 86BUGS list.

9308 Chris Lueders (chris_lueders@zaphod.fido.de) iAPX program & mul bugs
9311 Anthony Naggs (amn@ubik.demon.co.uk) NEC differences and CPU tests
9407 Christian Ludloff (Ludwig-Kühn-Str. 15, 09123 Chemnitz, Germany)
Discovered CPUID instruction on 486.
9410 Robert Mashlan (rmashlan@r2m.com) BOUND difference on NEC V20
9410 Anthony Naggs (amn@ubik.demon.co.uk) POP CS & MOV CS on 86/88
SETALC on NEC & i186 BOUND difference, NEC specific
instructions.
9410 Christian Ludloff (see above for address) Pentium extensions (MSRs),
INFO and STAT programs.

If you contributed, but are not listed, please send a note.




AAA Adjust After BCD Addition
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