Search found 27 matches

by Cwiiis
16 May 2018, 00:22
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

Re: WIP: Tetris + any GCL tips?

2. The blocks are 4 pixels in height, and the first line looks the same as the fourth. You can reorganise the video indirection table such that every fourth line is a copy of the the 1st. With that you need to address fewer bytes. Judging by the fast scrolling of the title image, you have already m...
by Cwiiis
16 May 2018, 00:17
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

Re: WIP: Tetris + any GCL tips?

Aah, this is interesting and explains what I was seeing before I think? (it's late, so I've not thought through this properly...) I worked around this by padding all pages out with zeros, so I guess it would consistently execute harmless code - for me, this gives consistent behaviour on hardware and...
by Cwiiis
15 May 2018, 12:43
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

Re: WIP: Tetris + any GCL tips?

Actually, came up with an idea at lunch after realising that there are 2 spare bits for every pixel on the screen - very handy, hopefully I can get the movement smooth :)
by Cwiiis
15 May 2018, 10:16
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

Re: WIP: Tetris + any GCL tips?

I implemented what I suggested, but of course it doesn't stop the flickering when the piece moves (though the code is tidier for it, so it's a net benefit). Sped up line clearing to the point I think it's acceptable too. I think if I want to have flicker-less piece moving, I'll need to change how co...
by Cwiiis
14 May 2018, 14:57
Forum: Hardware and software hacking
Topic: Double your RAM:
Replies: 20
Views: 19265

Re: Double your RAM:

Thanks for this, I was going to get to this at some point, so great to have some nice easy-to-follow instructions for it! Just a note, the pictures aren't showing for me - might be worth replacing with imgur links or something? I guess this might be a phpBB teething issue.
by Cwiiis
14 May 2018, 14:51
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

Re: WIP: Tetris + any GCL tips?

Great answers, thanks both :) I'll try briefly to see if I can time the collision/control check to happen quickly enough to be able to blank and draw the piece, but otherwise I think I'll do what I was suggesting and just check possible collisions on moving. I want to get scoring and progression in ...
by Cwiiis
14 May 2018, 09:59
Forum: Hardware and software hacking
Topic: WIP: Tetris + any GCL tips?
Replies: 29
Views: 19386

WIP: Tetris + any GCL tips?

I've been working on Tetris for the Gigatron (On emulator: https://youtu.be/BATJq6sy6eM On device: https://youtu.be/6YYSNdGqg_0) and it's going ok so far, all the basic building blocks are there now (excuse the pun), and it's mostly a case of polish. The game is currently about 6k, which is mostly t...