Reply 160 of 487, by FreddyV
Last Update, the PC Speaker code is Back, but there is the High frequency noise.
I took the init code from 8088MPH, and it is the same (Mine was more complexe, I don't remember why)
I optimized it a lot compare to my previous code, it can output at 11KHz on the Amstrad PC1640 (This is anyway useless, as the sound is really not good)
I added a Tandy DAC detection code.
I only need to know the I/O port to use (For Direct DAC) and the code for Direct DAC can be finished rapidly. (Did not start the DMA Mode)
I also speed up the Signed/Not signed conversion, this increase the speed more than the speed lost with 16Bit decimal precision.