[sdiy] Pink Tunes self-composing program.

Ben Bradley ben.pi.bradley at gmail.com
Tue Jan 9 21:27:27 CET 2018


The "Monster 6502" may have been posted before, but here it is.
Regrettably, it only runs at a clock speed of 60 kHz (he used FETs to
be more like the MOSFET devices on the chip, but I wonder if a bipolar
transistor design would run closer to "full" speed, even if it would
take a lot more power).  I suspect the vast majority of the "Pink
Tunes" code execution is spent in delay loops between notes, so it
might be possible for this board to run the code (with delay mods) in
real time.
https://monster6502.com/


On Tue, Jan 9, 2018 at 3:24 AM, Roman Sowa <modular at go2.pl> wrote:
> Which reminds me, someone made replica of 6502 in hardware using discrete
> transistors few years ago. It was a huge board with lots of blinking LEDs on
> it, about 4000 parts IIRC.
>
> Roman
>
> W dniu 2018-01-08 o 22:02, Scott Gravenhorst pisze:
>>
>>
>> I had read somewhere that someone did a 6502 emulation in an FPGA which is
>> another way
>> to do it.  Probably a downloadable core.  FPGAs weren't very large in
>> those days, so
>> I'd bet any newer FPGA including one that is Flash based should be able to
>> do it and
>> then run the binary code as-is with no soft emulation needed.
>>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy



More information about the Synth-diy mailing list