--- Nestor Soriano <[EMAIL PROTECTED]> wrote: > > Afaik the Z380
uses special instructions (Decoder Directives) to
> indicate
> > which ranges are to be used. They all start with DDIR.
>
> But JR is an exception. There are different opcodes for 8 bit JR and
> for 16 bit JR.
Isn't that accounted for in the Z380 mnemonics???
Strange...
> > And which to
> > 'compile' by default depends on the mode the Z380 is currently on
> (in
> > extended memory mode 24-bit JR's and 32-bit JP's are default, if
> I'm not
> > mistaking).
>
> Are you sure? I did not read anything about this in the Z380 manual.
> The
> use of 8 or 16 bit JRs depends on the opcode used. And the use of 16,
> 24
> or 32 bit JPs depends on the preceding DDIR decoder directive. But of
> course, don't try a 24 or 32 bit JP in native mode because only the
> low
> 16 bit of the jump address will be used, and the rest will be
> ignored.
How can you jump 24-bit when in native mode???
~Grauw
=====
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