Search found 6 matches

by rorodev
Thu Oct 26, 2023 4:26 pm
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Re: Using bitmap mode from C

I am searching for an example to understand better how I use the bitmap mode in C (or maybe Assembler). Ultimately, I'm wondering how to initialize this VERA mode and how I set after a pixel in a specific color. It would be great if someone could give me a headstart. Thanks a lot. , Yes, thank you,...
by rorodev
Thu Oct 26, 2023 12:47 pm
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Re: Using bitmap mode from C

After researching some code, I have at least a base to draw pixels that work roughly lol: I started understanding how all works together, but there is still a long way to go. The next step is to port my game code and see how it works using that SET_PIXEL() function. After I try to improve all and ma...
by rorodev
Thu Oct 26, 2023 10:08 am
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Re: Using bitmap mode from C

The "problem" is that the existing C examples show nicely how to use the bitmap buffer in a sequential order. They set the address and increment at the beginning and then send data to VERA.data0, filling the bitmap pixel by pixel. For a proper plot() and line() function, you must change th...
by rorodev
Thu Oct 26, 2023 7:37 am
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Re: Using bitmap mode from C

Thank you very much for your answer. I understand the concept now, and I am figuring out how to implement what I want to see if it's performant enough. My first try is by using vpoke() now, and it's pretty promising, but I will see. Maybe also a good time to consider (re-)learning 6502 assembler ;) ...
by rorodev
Wed Oct 25, 2023 8:18 pm
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Re: Using bitmap mode from C

I have found out in the meantime how the bitmap mode works using VERA mode, but it's probably not the right way because, as far as I understand, I can send the data in sequential order, which is not the right approach for what I want to do. Not yet sure ... Thanks for pointing me to the possibility ...
by rorodev
Wed Oct 25, 2023 5:37 pm
Forum: Programming
Topic: Using bitmap mode from C
Replies: 11
Views: 5520

Using bitmap mode from C

I am searching for an example to understand better how I use the bitmap mode in C (or maybe Assembler).
Ultimately, I'm wondering how to initialize this VERA mode and how I set after a pixel in a specific color.
It would be great if someone could give me a headstart. Thanks a lot.