Search found 68 matches

by qwertyface
28 Feb 2024, 10:58
Forum: Escape Meta Alt Control Shift
Topic: Forum performance issues
Replies: 5
Views: 3157

Re: Forum performance issues

Thank you both for your efforts in keeping the forum up and running. I really appreciate it.
by qwertyface
20 Nov 2023, 11:57
Forum: Hardware and software hacking
Topic: Time for a contest? Simplest maze-like printing..
Replies: 21
Views: 6529

Re: Time for a contest? Simplest maze-like printing..

Just when you think you've learned everything you can from Marcel's code :-)
by qwertyface
19 Nov 2023, 13:13
Forum: Hardware and software hacking
Topic: Time for a contest? Simplest maze-like printing..
Replies: 21
Views: 6529

Re: Time for a contest? Simplest maze-like printing..

Wow, I'd never realised it was possible to do inline assembly in GCL by using the addresses as byte values. It makes perfect sense, of course. I wish I'd known that sooner!
by qwertyface
06 Jul 2023, 15:16
Forum: Hardware and software hacking
Topic: A pull request (to be discussed)
Replies: 13
Views: 2512

Re: A pull request (to be discussed)

I'm keen to see further ROMs in the "mainline" series. Naturally it's important that additions are well tested, documented, and agreed to be useful by the community (although what the process for that looks like, I don't know), and backwards and forwards compatibility is essential. If it w...
by qwertyface
12 Dec 2022, 14:06
Forum: Hardware and software hacking
Topic: ROMv6!
Replies: 22
Views: 4325

Re: ROMv6!

at67, is it your position that there probably shouldn't ever be any post-Marcel ROM releases continuing from the v1/v2/v3/v4/v5a series? Not at all, anyone is able to make pull requests for future ROM's, (as lb3361 has been doing). OK, thanks for clarifying. For what it's worth, I think we as a com...
by qwertyface
12 Dec 2022, 10:50
Forum: Hardware and software hacking
Topic: ROMv6!
Replies: 22
Views: 4325

Re: ROMv6!

at67, is it your position that there probably shouldn't ever be any post-Marcel ROM releases continuing from the v1/v2/v3/v4/v5a series? I imagine that there might be some more context to this than is evident from the two recent threads on this forum, but I'd like to understand whether this is to do...
by qwertyface
06 Dec 2022, 17:07
Forum: Hardware and software hacking
Topic: ROMv5 ?
Replies: 10
Views: 1914

Re: ROMv5 ?

There is already a SYS_Multiply_s16, written by at67, that multiplies two 16 bits numbers, returning the low 16 bits of the result. Of course one could improve its implementation in the future to make it much faster. Oh, right. I hadn't noticed that going in. I don't think my most recent bytes vers...
by qwertyface
02 Dec 2022, 16:11
Forum: Hardware and software hacking
Topic: ROMv5 ?
Replies: 10
Views: 1914

Re: ROMv5 ?

Hi, I support the idea that we should be working towards a new release, and think I agree that v6 is the right version to use. I'm fine with removing pictures, and adding other applications. But I wonder if perhaps we should switch making the version a label for a core set of functionality (fonts an...
by qwertyface
07 Nov 2022, 12:00
Forum: Hardware and software hacking
Topic: Racer.
Replies: 9
Views: 1656

Re: Racer.

Since you've been looking at Racer, I wonder if you have any insights into the inversion table in ROM page 10. I couldn't easily work out how it's being used from reading the Racer source, and the comment in the ROM source source ("Unit 64, table offset 16 (=1/4), value offset 1: (x+16)*(y+1) =...
by qwertyface
30 Sep 2022, 16:42
Forum: Hardware and software hacking
Topic: vCPU Questions and Necessary Details
Replies: 5
Views: 2877

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 ...