Re: Disassembly of Farbrausch's "fr-016: bytes"

I was testing out a rudimentary python 16-bit x86 assembler with the  
code from:

http://canonical.org/~kragen/demo/fr-016.html

and, although my source:

> org 100
> mov ax,13
> int 10
> les bp,[bx]
>
> l loop
> stosb
> adc ax,di
> adc ax,1132
> jmp loop


results in a slightly different 15 bytes:

0000000: b813 00cd 10c4 2faa 11f8 1532 11eb f8    ....../....2...

I still get the same visual output in QEMU.

So:

I think the 1132 is an immediate, and the FS override is there (a) as  
padding or (b) to potentially confuse disassemblers.

dc -e '16i2o 1132p' yields 1000100110010, so it seems reasonable that  
the second adc helps create a nice LFSR-like term.  But I don't  
understand why your attempts at manually removing the FS override  
wouldn't have given the same behavior that I see.

-Dave

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