3 ms·
Don't know R-type, but Rockman did speech [1] on a machine whose buzzer only admited 2 states (some sort of PWM?), and Uridium [2] did multicolored characters b
by jesuslop 10y ago
Don't know R-type, but Rockman did speech [1] on a machine whose buzzer only admited 2 states (some sort of PWM?), and Uridium [2] did multicolored characters by changing colors in interrupts handled in controlled TV scan-lines.
[1] https://www.youtube.com/watch?v=UyFrOHDDXrU https://www.youtube.com/watch?v=UyFrOHDDXrU
[2] https://www.youtube.com/watch?v=6S8rGc4Osu4 https://www.youtube.com/watch?v=6S8rGc4Osu4
- digi_owl 10y agoThat latter trick was used on many an early micro that was designed for TV use. Back then games had a very intimate relationship with the CPU and the electron beam of the TV. For example using the cycles while the beam was moving from the bottom right to the top left to start a new image to do non-graphical work.