[sdiy] Some Audio DSP prototypes

Paul Perry pfperry at melbpc.org.au
Wed Apr 20 15:41:27 CEST 2022

I guess Microchip are so big now, they only care about the biggest
customers. Sad they don't remember the people who pushed them along when
they started.
paul perry melbourne australia

On Wed, Apr 20, 2022 at 11:24 PM Tom Wiltshire <tom at electricdruid.net>

> On 20 Apr 2022, at 11:13, Neil Johnson via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> Hi,
> Tom wrote:
> > This happens all over the place, not just Windows. Witness the fairly
> > recent dropping of PIC ASM by Microchip.
> Richie wrote:
> > WTF!  Is this some kind of joke!?
> > Can you elaborate or provide a reference for this Tom?
> Vladimir wrote:
> > sorry for top posting, I guess he refers to this:
> > https://www.microchip.com/forums/m1145168.aspx
> And Microchip wrote:
> MPASM to MPLAB XC8 PIC Assembler Migration Guide (microchip.com)
> <https://ww1.microchip.com/downloads/en/DeviceDoc/MPASM%20to%20MPLAB%20XC8%20PIC%20Assembler%20Migration%20Guide%2050002973A.pdf>
> Neil
> Yes, that's the one. The original PIC ASM / MPASM compiler has been
> dropped, and you now have to use XC8. Which is hopeless by comparison, in
> my view.
> +1 agree with Roman that the migration guide is useless. It implies that
> you just make a few simple syntax changes and recompile. That's not the
> case at all. There are significant structural changes. Absolute code is no
> longer accepted at all, for example - it must all be relocatable. Operator
> precedence has gone, so statements  using those need serious rewriting (and
> testing/debugging) all over again. etc etc.
> The really crazy part is that this affects all Microchip's own code too.
> In one fell swoop, because they could be bothered to invest in making a
> 64-bit compatible version of PIC-ASM, they made years of examples in all
> their documentation obsolete and unworkable.
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