Search found 59 matches

by qwertyface
Today, 16:42
Forum: Hardware and software hacking
Topic: vCPU Questions and Necessary Details
Replies: 1
Views: 18

Re: vCPU Questions and Necessary Details

Generally most of your questions can be answered by reading the contents of /Docs/ , however some more detailed answers are below. 1. What is the entry point of vCPU? The binary format for GT1 files (as understood by the loader application) includes a start-address, see /Docs/GT1-files.txt 2. Where ...
by qwertyface
23 Sep 2022, 09:32
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 474

Re: PyCon UK Talk Proposal

Thanks Walter, I'm glad and relieved that you enjoyed it. I was a bit worried that you would think it was inappropriate for me to talk about your friend Marcel as I did at the end, since I didn't know him beyond a relatively few messages exchanged online. I really do feel a great deal of gratitude t...
by qwertyface
18 Sep 2022, 22:49
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 474

Re: PyCon UK Talk Proposal

The talk seemed to go quite well, all things considered, and I had a lot of interesting conversations around the conference.

The video is here. The time slot was quite short, so I couldn't cover a lot of what I'd have liked to, but I think it was at least coherent.
by qwertyface
25 Aug 2022, 15:00
Forum: Hardware and software hacking
Topic: Graph Paper
Replies: 0
Views: 149

Graph Paper

Inspired by the back of the BBC Micro User Guide, I've written a PostScript program to generate Gigatron Graph Paper. Basically it's a 160x120 grid, but it's annotated with the default memory addresses of the pixels. It needs to be printed on A4 paper (sorry to anyone in the USA). I've attached a PD...
by qwertyface
19 Aug 2022, 08:42
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 474

Re: PyCon UK Talk Proposal

Yes, I absolutely will. The talks are usually recorded and uploaded to YouTube.
by qwertyface
18 Aug 2022, 20:03
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 474

Re: PyCon UK Talk Proposal

Due to a cancellation, it looks like I'm now going to be giving this talk. Hopefully I'll manage to pull the bunch of loose ends of my various projects into something coherent in the next month!
by qwertyface
19 Jul 2022, 15:05
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 474

Re: PyCon UK Talk Proposal

It wasn't accepted - although I wonder if it got close, because I'm aware some people got their rejection emails quite a lot earlier.
by qwertyface
15 Jul 2022, 12:29
Forum: Escape Meta Alt Control Shift
Topic: CP/M (now) under OSS-like terms
Replies: 1
Views: 174

CP/M (now) under OSS-like terms

I'm not sure if this is of interest to anyone, but I know that at one point Marcel had ideas about making a v8080, and porting CP/M to run on the Gigatron. Apparently it had been released some time ago, but under a license that had some apparent restrictions on how it could be distributed, and thus ...
by qwertyface
13 Jul 2022, 21:31
Forum: Hardware and software hacking
Topic: Debugging symbol format
Replies: 5
Views: 303

Re: Debugging symbol format

That's interesting. I'd not heard of stabs. Source code debugging is the sort of use case I was thinking of building up to. For now, I think just being able to replace addresses with variable names while stepping through instructions would be very useful, but I'm approaching it with a GCL mindset, w...
by qwertyface
13 Jul 2022, 20:57
Forum: Hardware and software hacking
Topic: Debugging symbol format
Replies: 5
Views: 303

Re: Debugging symbol format

Thanks. Presumably your debugger also makes use of some non-public symbols (specifically ENTER and NEXT) for single stepping vCPU code.