Here is an example of the p opcode. It uses the files p.orc and p.sco.
Example 1. Example of the p opcode.
/* p.orc */
; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1
; Instrument #1.
instr 1
; Get the value in the fourth p-field, p4.
i1 = p(4)
print i1
endin
/* p.orc */
/* p.sco */
; p4 = value to be printed.
; Play Instrument #1 for one second, p4 = 50.375.
i 1 0 1 50.375
e
/* p.sco */
instr 1: i1 = 50.375