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Re: PWM on 18-bit DAC to get 24-bit Color

Posted: Sun Feb 02, 2025 9:20 pm
by amano

Thank you, Ruleset!!!


Re: PWM on 18-bit DAC to get 24-bit Color

Posted: Tue Feb 04, 2025 1:04 am
by naylord

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.


Re: PWM on 18-bit DAC to get 24-bit Color

Posted: Tue Feb 04, 2025 12:12 pm
by Ruleset
naylord wrote: Tue Feb 04, 2025 1:04 am

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.

Here is the last build I did with a "Scandoubler Fx" option, I think scandoubling doesn't work with interlaced video. Don't know why it was removed if it still has a use for some people. Maybe FPGA resource optimization.


Re: PWM on 18-bit DAC to get 24-bit Color

Posted: Tue Feb 04, 2025 12:58 pm
by FPGA64
Ruleset wrote: Tue Feb 04, 2025 12:12 pm
naylord wrote: Tue Feb 04, 2025 1:04 am

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.

Here is the last build I did with a "Scandoubler Fx" option, I think scandoubling doesn't work with interlaced video. Don't know why it was removed if it still has a use for some people. Maybe FPGA resource optimization.

Saturn core is 99 % full. better to drop things like scandoubler than have bugs


Re: PWM on 18-bit DAC to get 24-bit Color

Posted: Tue Feb 04, 2025 2:07 pm
by mapf

Indeed it does not work with interlaced modes. Saturn and PSX have a lot of titles that switch between interlaced and non-interlaced. So one should always use the scaler instead to make sure that all content is visible.