Fw: [Sdcc-user] How to generate movx @ro

[Royce & S. P. <be...@et...>]

Hi,
----- Original Message -----
> I declare a variable in the xdata space as " xdata @01 char x;" to
represent
> a register in the state machine.  Then I try to access the variable in the
> program and sdcc generated code looks like "movx @dptr,a" .
>So my port2 gets buggered up.   Can I not make sdcc generate code as "movx
@ro,a" ??
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Perhaps you could try a peepfile(see docs) to replace the *code block* that
loads dptr with the xram address & does a movx @dptr,a (or movx a,@dptr)with
one that does mov r0,#address, & movx @r0, a, (or movx a, @r0).

Specify the peep file in the command line.

Alternatively(inefficient option), write a function to  which you pass the
address & data ,which contains inline assembly to do the job.

--Royce.