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From: Bakul Shah <bakul@bitblocks.com>
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To: Larry McVoy <lm@mcvoy.com>
Subject: Re: [TUHS] interpreted C?
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The ups debugger by Mark Russell of University of Kent. It used x11 or sunvi=
ew. IIRC it used a separate graphics library built directly on top of x11 (o=
r sunview) that provided variable scrolling etc. scrolling speed and directi=
on depended on the distance you dragged the mouse pointer from its initial p=
osition. You could click on any source like and add a break or custom code i=
n interpreted C. You could click on the data structure window and follow lin=
ked list structures etc. The last version was 3.38 in 2003. I don=E2=80=99t t=
hink it works with anything more modern than gcc3. The nicest debugger I eve=
r used.

> On May 4, 2019, at 1:48 PM, Larry McVoy <lm@mcvoy.com> wrote:
>=20
> Decades ago there was an interpreted C in an X10 or X11 app, I believe it
> came from the UK.  And maybe it wasn't X11, maybe it was Sunview?=20
> Whatever it was the author didn't like the bundled scrollbars and had
> their own custom made one.
>=20
> You could set breakpoints like a debugger and then go look around at state=
.
>=20
> Does anyone else remember that app and what it was called?