Search found 555 matches
- Tue Mar 19, 2019 10:48 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Great video - thanks for going to the trouble to post it. Those vertical bars are definitely not data line issues - that's the so-called "every other 16 pixels background" problem which manifests as a blank bar of 16 pixels every 80 pixels in mono. It's purely to do with the timing of when...
- Tue Mar 19, 2019 3:55 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Another question (which is not as easily answered): if you had an original shifter installed, would it still fail the blitter short test?
- Tue Mar 19, 2019 3:53 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
That's very interesting and strange, because the blitter doesn't interact with the shifter. And surely nothing here can tell where the mouse pointer is... right!? Unless moving the mouse to a certain spot causes the ST or its associated wires to move. Question: does it still happen when you use the ...
- Sun Mar 17, 2019 11:28 pm
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Adding it to EmuTOS should be relatively straightforward, without any hardware changes. ...I say "relatively" by comparison with real TOS.
- Sun Mar 17, 2019 10:34 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
I think a modified TOS would be necessary because I'm sure TOS would be checking the mono-detect pin immediately after boot to determine which video parameters it should use. It'd have to be modified to figure it out some other way. I've simply wired a physical switch into my machine that grounds th...
- Sat Mar 16, 2019 10:42 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Woohoo! Thanks man. I love it when a plan comes together!
- Tue Mar 12, 2019 4:10 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Very possibly!
- Tue Mar 12, 2019 1:54 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
I mean a minimally-small program that can generate scanlines shifted by each of the possible amounts. Then I can experiment with code changes and see the result. With a demo, the screen is constantly moving, so you can't keep track of what's going on - and the shifter's so busy that you can't be sur...
- Tue Mar 12, 2019 12:28 am
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361
Re: Project: HDMI/DVI out for STFM
Unfortunately it doesn't yet work with sync-scrolling effects. I haven't worked on it yet because my 68000 programming skills aren't up to the task of making a test-case.
- Mon Mar 11, 2019 11:39 pm
- Forum: FPGA DEVELOPMENT
- Topic: Project: HDMI/DVI out for STFM
- Replies: 666
- Views: 329361