Search found 502 matches

by at67
07 Dec 2022, 08:46
Forum: Hardware and software hacking
Topic: ROMv5 ?
Replies: 9
Views: 231

Re: ROMv5 ?

My 2 cents: Marcel had some strict requirements for official ROM's, 100% SW compatibility, future extensions, etc, which can be gleaned from the source code and documentation . Marcel also had plans for ROMv5 and ROMv6 stable and and you can in fact get the gist of them by looking at the DEVROM/ROMv...
by at67
10 Nov 2022, 15:01
Forum: Kit assembly gallery
Topic: New one Gigatron in Poland
Replies: 4
Views: 201

Re: New one Gigatron in Poland

Welcome!
by at67
10 Nov 2022, 15:00
Forum: Hardware and software hacking
Topic: Unified return from vCPU interrupt (vRTI)
Replies: 6
Views: 246

Re: Unified return from vCPU interrupt (vRTI)

It looks good to me, as long as it passes compatibility tests I think it's a definite improvement.
by at67
30 Oct 2022, 13:03
Forum: Hardware and software hacking
Topic: Racer.
Replies: 9
Views: 421

Re: Racer.

Curious to know what you think about this version of Racer with a car crash sound? Personally I think it's too long/abrupt and too binary, I know there's no code space left, but a skid type sound as you get closer to the rail ramping in intensity before you explode would probably do the trick. Mayb...
by at67
26 Oct 2022, 08:58
Forum: Hardware and software hacking
Topic: Racer.
Replies: 9
Views: 421

Re: Racer.

You have more than just code space, you also have 3*64 or even 4*64 bytes of waveform space at your disposal, the player explosion in Invader uses all 4 channels from memory. The way I create Gigatron sound effects for my projects, (this really only works for old school sound effects that were creat...
by at67
22 Oct 2022, 02:10
Forum: Hardware and software hacking
Topic: LCC for the Gigatron. Take two.
Replies: 61
Views: 13372

Re: LCC for the Gigatron. Take two.

Another interesting tool to control the video generation is the variable videoTop_v5 at location 0x1f9. It should always contain an even number which is twice the number of pixel rows that should be be left black at the top of the screen and made fully available for the vCPU. This is safer than usi...
by at67
19 Aug 2022, 07:43
Forum: Escape Meta Alt Control Shift
Topic: PyCon UK Talk Proposal
Replies: 10
Views: 664

Re: PyCon UK Talk Proposal

Congratulations, would be great if you could provide some sort of link in this thread afterwards!
by at67
05 Aug 2022, 13:39
Forum: Kit assembly gallery
Topic: Gigatron reaches the Falkland Islands (eventually)...
Replies: 3
Views: 651

Re: Gigatron reaches the Falkland Islands (eventually)...

Epic pictures!

And the landscapes are pretty cool too ;)
by at67
16 Jul 2022, 20:55
Forum: Escape Meta Alt Control Shift
Topic: CP/M (now) under OSS-like terms
Replies: 1
Views: 243

Re: CP/M (now) under OSS-like terms

That's a very cool development for past, present and future CP/M.