=> R0 = 0 (reason code)
<= R0 = 0 if 16 bit sound not supported
1 if 16 bit sound is supported
R1 = flags if R0 = 1
else zero
This SWI reads the sound system type. In 16-bit mode, Sound_LinearHandler and Sound_SampleRate are available.
Sound_Mode flags
Bit Meaning
0-3 Sound format type
0 8 bit µ-law only
1 16 bit output with variable rates (44.1kHz, 22.05kHz and 11.025kHz supported)
2 16 bit output with only old sound rates supported
3 16 bit output using an external clock generator (requires custom hardware/driver)
4-15 reserved
4 Oversampling flag (if set, oversampling is enabled)
5-31 reserved
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