SS.Tone_Set_Status

Creates a sound through the terminal output device.

Entry Conditions

A
path number

B
SS.Tone ($98)

X
duration and amplitude of the tone

 
LSB = duration in ticks (60/sec) in the range 0-255

 
MSB = amplitude of tone in the range 0-63

Y
relative frequency counter (0=low, 4095=high)

Exit Conditions

These are the same as the entry conditions. There are no error conditions.

Additional Information

• This call produces a programmed I/O tone through the speaker of the monitor used by the terminal device. You can make the call on any valid path open to term or to a window device.
• The system does not mask interrupts during the time the tone is being produced.
• The frequency of the tone is a relative number ranging from 0 for a low frequency to 4095 for a high frequency. The widest variation of tones occurs at the high range of the scale.