[sdiy] Some Audio DSP prototypes

[Tom Wiltshire]

Yep. In the old days, if you didn't like Microchip or what they were doing with the PIC, you could move to Atmel / AVR!! Now, we don't get that option.

> On 20 Apr 2022, at 14:41, Paul Perry <pfperry at melbpc.org.au> wrote:
> 
> 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 <mailto:tom at electricdruid.net>> wrote:
> 
>> On 20 Apr 2022, at 11:13, Neil Johnson via Synth-diy <synth-diy at synth-diy.org <mailto: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 <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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