Vgm cnt

VGM Command Counter

This tool counts the commands/notes for each chip. Even if you drop/specify multiple files, vgm_cnt only reports on one file.

Chips with 0 for both Commands and Notes are unused. The SEGA VDP PSG is probably unused if it has zero Notes. Compare the following examples:

SN76496 #0: 34238 Commands, 8 Notes
YM2612 #0: 1679085 Commands, 2997 Notes

The PSG is used, most likely.

SN76496 #0: 59061 Commands, 0 Notes
YM2612 #0: 154335 Commands, 2180 Notes

Most likely not used.