Here is a list of opcodes that don't fall in any category:
- directory - Reads a directory and outputs to a string array a list of file names.
- nchnls_hw - Returns the number of audio channels in the underlying hardware.
- pwd - Asks the underlying operating system for the current directory name as a string.
- select - Select sample value based on audio-rate comparisons.
- system - Call an external program via the system call.
- modmatrix - Modulation matrix opcode with optimizations for sparse matrices.
- readscratch - Returns a value stored in the instance of an instrument.
- writescratch - Writes a value into the scratchpad of the instance of an instrument.