[Nasm-bugs] [Bug 3392642] Opcodes 83h /1, /4 and /6 ib are only available on 386 and newer.

[noreply-nasm at dev.nasm.us]

https://bugzilla.nasm.us/show_bug.cgi?id=3392642

C. Masloch <pushbx at ulukai.org> changed:

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                 CC|                            |pushbx at ulukai.org

--- Comment #1 from C. Masloch <pushbx at ulukai.org> ---
https://www.google.com/search?q=8086+iapx86+instruction led me to
http://bitsavers.informatik.uni-stuttgart.de/components/intel/8086/210912-001_iAPX_86_88_186_188_Users_Manual_1985.pdf
which on page 60 of 353 (labelled 1-44) has its Figure 1-29. This lists opcode
83h as "Immed is.r/m" which indicates that 83 /6 is xor r/m16, imms8.

http://ref.x86asm.net/coder32.html#x83 is the only reference I found that lists
83 /6 as a 386+ instruction.

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