On Mon, 23 Nov 2020 20:11:45 -0500 Melvyn Maltz
<[email protected]> wrote:

:>I have to thank my esteemed colleague Don Higgins for enabling this post

:>IILF R3,MYLABEL
...
:>MYLABEL DC 'HELLO'

:>This is interesting on a number of levels, yes, the immediate value is 
relocatable
:>I guess this is a 'good thing' for 32-bit immediate instructions...hmmm

What was the "immediate" value assembled? Was it in the RLD? The immediate
field should be a value, not a relocatable address (as least as I would
understand it).

:>My concern is though, are these instructions modal ?

As it changes explicit bytes, how would modality be relevant?

:>I haven't tested all variants, but in 31-bit mode is the top bit on  ?
:>If so, LGFI would propagate it...if so it doesn't seem like a good thing

Why would the mode be relevant? LGFI sign extends in all addressing modes.

:>Not a lot about this in the PoP...nada  

Don't understand why the assembler accepted the instruction.

--
Binyamin Dissen <[email protected]>
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Director, Dissen Software, Bar & Grill - Israel


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