I was searching a few hours now for the 80286 instructions set list on the Inet.
But all the searching resulted in nothing useful.
So I decided to ask you guys to help me, if you have it or know where I can get it...I would like to hear!

If you wonder why I need especially the 80286, because I write a disassembler, and I want to let the user select 16/32 bits,
and the 80286 is the last 16 bits processer in the 80x86 family...

If you have other ideas how I can distinguish opcodes for 16 or 32 bits, so you are more than welcome to tell me about it.

Thanks in advance. :alright:
Posted on 2003-07-18 04:07:18 by arkon
TIHS is my bible

There's much more than what you need.
Posted on 2003-07-18 07:26:40 by Bit7
the link could be broken, try here


Posted on 2003-07-18 07:28:26 by Bit7
Great, I will wait for it. Hope your debugger can trace instruction. I build my own assembler here. You can see it on my website, it open source.:alright:
Posted on 2003-07-19 04:18:42 by realvampire
Thanks for the instant replying.
I have HelpPC already, but I am looking for the Intel's original code table/data sheet...

Well realvampire, I develope it for my own fun and profit, I thought it would be a challenge to decode 80x86 instructions, because they are pretty messy, but to be honest it was easier than I thought it would be in first place.
I don't think I am going to make it a debugger... Not interested in it, but I wanna make it a complete disassembler...
supports at least 16/32 bits instructions + FPU...

I will take a look at your web site, seems to be interesting.

Thanks guys.
Posted on 2003-07-19 05:43:00 by arkon

Thanks for the instant replying.
I have HelpPC already, but I am looking for the Intel's original code table/data sheet...

I searched it too but Intel's original is, as I think, not possible to obtain. Intel's official site no longer offer it.

Try to ask on http://www.sandpile.org/post/
Posted on 2003-07-20 16:15:55 by MazeGen
Try this link:


Vol 2 is the intruction set.
Posted on 2003-07-21 00:10:40 by msmith
It took me a couple hours of searching but i did find the


from here


i will see if i can find the hardware one also
Posted on 2003-07-21 03:11:03 by devilsclaw
the Intel 80286 Hardware Reference Manual is only in BOOK form
so you can try to find it at a libary lol if it spelt that right..

or buy it from like amazon.com


they have other books also on the other cpus all in one book but its like 110$

The Intel Microprocessors 8086/8088, 80186/80188, 80286, 80386, 80486, Pentium, and Pentium Pro Processor Architecture, Programming, and Inter- facing

Posted on 2003-07-21 03:23:16 by devilsclaw
doesn't intel offers a hardCopy to be sent home or u need to buy that?
Posted on 2003-07-21 15:13:48 by wizzra
wizzra, i was just gonna send u this link :D
Posted on 2003-07-21 17:06:25 by CuTedEvil
Posted on 2003-07-22 16:00:33 by wizzra
Hey devilsclaw, thank you very much for this valueable document, and it's f@#$ing from '87!

I would like to know how you found it, so if you can pm that would be great...

Thanks again.

(BTW-I was looking for the software info)
Posted on 2003-07-25 03:53:17 by arkon
Posted on 2003-07-25 20:34:47 by VVV
That looks alot like the NASM Library i have seen on the net but not in HTM format.. :)
Posted on 2003-07-25 20:44:51 by devilsclaw