Ym2413+instrumentsbin – Fully Tested

| Byte | Parameter | Description | |------|-------------------------|-------------| | 0 | Feedback / Algorithm | Bits 0-2 = algorithm (1 or 0), bits 3-5 = feedback | | 1 | Operator 1 (Carrier) | Multiplier, total level (MSB), KSR, etc. | | 2 | Operator 2 (Modulator) | Same as above | | 3 | Operator 3 (Carrier) | Same as above | | 4 | Operator 4 (Modulator) | Same as above | | 5 | Attack / Decay 1 | AR (4 bits) + DR (4 bits) for operator 1 | | 6 | Attack / Decay 2 | AR + DR for operator 2 | | 7 | Sustain / Release (all) | SR (4 bits) + RR (4 bits) for all operators |

For RetroArch users using the Nuked-OPLL core: ym2413+instrumentsbin

The (also known as the OPLL ) is a sound chip developed by Yamaha. It’s a 4-operator FM synthesis chip with 15 preset instruments and 1 user-programmable instrument slot. It was used in: It was used in: