=> R0 = channel number to alter
or 0 for pre-programmed settings
<= R0 is preserved
If R0 = 1-8 then R1 = previous stereo position
If R0 = 0 then R1 is corrupted
This SWI allows the stereo positions for each channel to be altered independently, or all together. If R0=1-8 on entry, then R1 must be either a valid stereo position (-127 to 127) or -128 to read the previous position. If R0=0 on entry, then R1 must be in the range 0-4 to alter all the channels to one of these pre-programmed values.
User channel stereo settings
R0 = 1-8
R1 = -127 (left) to 127 (right)
or -128 to read current position
R0 = 0
R1 = 0 default stereo positions
1 Amiga (full) stereo positions
2 centred (no stereo)
3 full left
4 full right
Default stereo settings
Channels 1,5 Position: -79 (left)
Channels 2,6 Position: 79 (right)
Channels 3,7 Position: 47 (slightly right)
Channels 4,8 Position: -47 (slightly left)
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