BigEd wrote:
I beg to differ - there's a bit of a market, I'm sure you'll get some hundreds of views fairly quickly. And there are a number of more technical 6502 channels with 1k subscribers or more. It's a market. It won't make you enough to retire in luxury, but you are reaching out to like minds, and helping some people move forward, and spreading the word. Keep at it!
We could perhaps usefully share recommendations of small channels with technical 6502 content, channels which might not be promoted algorithmically. We can be the word of mouth.
This is all not quite responding to your specific video! But I'm glad you made it.
Thanks!
If I can help a few people without causing them too much pain along the way, I think I've done what I came to do
plasmo wrote:
I built my own text-based VGA board and I've added hardware scrolling feature. I found out as you did that while scrolling the screen one or more lines is easy enough, managing the cursor positioning is actually quite complicated. To add more complications is managing the cursor position in BIOS with VT52 escape sequences. So hardware scrolling solves some problems but also introduce another set of problems.
In 6502 version of text-based VGA board, I chose not to have hardware scroll function. Part of the reasons is the lack of hardware resources, but the other part is the realization that video board is design to run with a 25MHz 6502 which can paint 64x48 text screen quite rapidly so hardware scrolling really doesn't add that much speed enhancement.
This kind of deep dive is difficult to explain in an instruction video.
Bill
VT-52 looks so friendly compared to what the Raspberry Pi expects my poor little thing to understand - have a feeling I'll have to dive deep into xterm documentation or find something more fun to do..
Maybe I'll take a look if the Pi support XON/XOFF and maybe if RTS/CTS is enabled on boot in the SoC - I might breeze over ANSI Escape codes too but implementing them is soooo out of scope.. I'd rather code Flappy Bird
It really is a bit much to put into a video that's supposed to be somewhere between education and entertainment.