However, since I no longer have a CRT television, I'm wondering if any NTSC CRT users out there are able to test the above code to me and let me know if they can still see the border (however slight it is) at the top and bottom of the screen?
I am planning to do a VIC-20 project that would require a bigger screen display.
"A slave is one who waits for someone to come and free him." -- Ezra Pound
In another thread, darkatx and I got to 23x26 without any cropped borders - on his CRT. Later, freshlamb tried out the NTSC VFLI mode with that exact set of parameters on another CRT and the picture was already clipped at the top.
If you take a look at darkatx's picture, 22x27 should work out, but you also should in any case provide the user with a means to adjust the position of the visible window.
Mike wrote:In another thread, darkatx and I got to 23x26 without any cropped borders - on his CRT. Later, freshlamb tried out the NTSC VFLI mode with that exact set of parameters on another CRT and the picture was already clipped at the top.
If you take a look at darkatx's picture, 22x27 should work out, but you also should in any case provide the user with a means to adjust the position of the visible window.
Thanks. Looks like 22x27 would be cutting it close, but 22x26 would be a safe option. I'll use the KERNAL print routines to write text to the first 23 rows, while directly storing the character values in the bottom 3 rows in screen RAM to display text/graphics there.
"A slave is one who waits for someone to come and free him." -- Ezra Pound
Ghislain wrote:Thanks. Looks like 22x27 would be cutting it close, but 22x26 would be a safe option. I'll use the KERNAL print routines to write text to the first 23 rows, while directly storing the character values in the bottom 3 rows in screen RAM to display text/graphics there.
If you're going to use expansion then maybe you can go with a custom character set for a set screen area/window which would be similar to what Mike and Kweepa use?
Sounds like you need a bit extra room for text and 22 columns might not be enough.