Re: [Nasm-users] Complete newbie question

[<ce...@ar...>]

Hello again!

I seem to have run into another problem with the nasm-human interface.
I've got code loaded into es:bx, courtesy of int 13.

My understanding is that I ought to be able to far jump to es:bx, however
jmp es:bx gets me the error "invalid combination of opcode and operands".

For fun, I replaced es:bx with 0xFFFF:0xFFFF which worked OK (although,
FFFFh:FFFFh doesn't -- nasm parses that first FFFFh as a label).  I then
tried 0xFFFF:bx and es:0xFFFF, both of which gave me the same invalid
combination of opcodes and operands.

Here's a listing of things which I've tried while trying to figure out the
problem.
jmp cs:0xFFFF
jmp ds:0xFFFF
jmp es:bx
jmp bx:dx
jmp ebx:edx
jmp ds:dx

These two complain about operation size not being specified.  Including
dword after jmp brings back the invalid combination error.
jmp 0xFFFF:bx  
jmp 0xFFFF:ebx

Incidentally, [cs:0xFFFF] and [ds:0xFFFF] will work, although that's nothing 
even approximating what I want. 

-Phil/CERisE