Re: Throwback

[Coda Highland <chighland@...>]

On Wed, May 13, 2015 at 7:19 AM, Rob Kendrick <rjek@rjek.com> wrote:
> On Wed, May 13, 2015 at 07:18:03AM -0700, Coda Highland wrote:
>> On Wed, May 13, 2015 at 6:41 AM, Rob Kendrick <rjek@rjek.com> wrote:
>> > On Wed, May 13, 2015 at 10:37:51AM -0300, Roberto Ierusalimschy wrote:
>> >> > I was pleased to get an email from a man who wanted to introduce
>> >> > his son to programming using Lua. He ended his email with:
>> >> >
>> >> > > Anyway, my conclusion is this would be a good way to introduce my son to
>> >> > > programming, but the main obstacle is the debugging!  Throwback into the
>> >> > > editor would be ideal, if that could be arranged.
>> >>
>> >> Come on, teach the kid the right way! Print debugging is the way to go :-)
>> >
>> > Oscilloscope attached to a pin on the parallel port or nothing.
>> >
>>
>> I have literally done exactly this before (okay, it was a GPIO pin,
>> not a parallel port). It's fun. :P
>
> It is not fun.  Especially when you're using it to debug the initial
> program loader on an x86 system :)
>

I think the not-fun-ness of that comes from the fact that you would
rather be using said x86 system instead of debugging it.

Me, I was creating (from scratch) and debugging a Linux kernel driver
for first a character LCD display and later a custom-built audio
device (which we later scrapped because you could hear the OS
context-switching as clicks in the output).

/s/ Adam