エミュレータのソースコードから起こしたのであちこち穴があります。
YM2151レジスタマップ
アルゴリズム一覧（OPNAと同じ）
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| 001h | TEST | LFORST | - | |||||
| 008h | OFF/ON | Slot1 | Slot2 | Slot3 | Slot4 | Channel | ||
| 00Fh | NE | - | NFRQ | |||||
| 010h | TimerA(H) | |||||||
| 011h | - | TimerA(L) | ||||||
| 012h | TimerB | |||||||
| 014h | ? | RSTST1 | RSTST2 | ? | TARST | TBRST | ||
| 018h | LFOFREQ | |||||||
| 019h | PMD/AMS | Value | ||||||
| 01Bh | ? | LFOWF | ||||||
| 020h | Ch1-L | Ch1-R | Ch1-FB | Ch1-ALG | ||||
| 021h ～ 027h | Ch2～Ch8 PAN/FB/ALG | |||||||
| 028h | Ch1-FNum(H) | |||||||
| 029h ～ 02Fh | Ch2～Ch8 FNum(H) | |||||||
| 030h | Ch1-FNum(L) | - | ||||||
| 031h ～ 037h | Ch2～Ch8 FNum(L) | |||||||
| 038h | Ch1-AMS | Ch1-PMS | ||||||
| 039h ～ 03Fh | Ch2～Ch8 AMS/PMS | |||||||
| 040h | - | Ch1Slot1-DT1 | Ch1Slot1-MULT | |||||
| 048h | - | Ch1Slot3-DT1 | Ch1Slot3-MULT | |||||
| 050h | - | Ch1Slot2-DT1 | Ch1Slot2-MULT | |||||
| 058h | - | Ch1Slot4-DT1 | Ch1Slot4-MULT | |||||
| 041h ～ 05Fh | Ch2～Ch8 DT1/MULT | |||||||
| 060h | - | Ch1Slot1-TL | ||||||
| 068h | - | Ch1Slot3-TL | ||||||
| 070h | - | Ch1Slot2-TL | ||||||
| 078h | - | Ch1Slot4-TL | ||||||
| 061h ～ 07F | Ch2～Ch8 TL | |||||||
| 080h | Ch1Slot1-KS | - | Ch1Slot1-AR | |||||
| 088h | Ch1Slot3-KS | - | Ch1Slot3-AR | |||||
| 090h | Ch1Slot2-KS | - | Ch1Slot2-AR | |||||
| 098h | Ch1Slot4-KS | - | Ch1Slot4-AR | |||||
| 081h ～ 09F | Ch2～Ch8 KS/AR | |||||||
| 0A0h | AMON | - | Ch1Slot1-DR | |||||
| 0A8h | AMON | - | Ch1Slot3-DR | |||||
| 0B0h | AMON | - | Ch1Slot2-DR | |||||
| 0B8h | AMON | - | Ch1Slot4-DR | |||||
| 0A1h ～ 0BFh | Ch2～Ch8 AMON/DR | |||||||
| 0C0h | Ch1Slot1-DT2 | - | Ch1Slot1-SR | |||||
| 0C8h | Ch1Slot3-DT2 | - | Ch1Slot3-SR | |||||
| 0D0h | Ch1Slot2-DT2 | - | Ch1Slot2-SR | |||||
| 0D8h | Ch1Slot4-DT2 | - | Ch1Slot4-SR | |||||
| 0C1h ～ 0DFh | Ch2～Ch8 DT2/SR | |||||||
| 0E0h | Ch1Slot1-SL | Ch1Slot1-RR | ||||||
| 080h | Ch1Slot3-SL | Ch1Slot3-RR | ||||||
| 0F0h | Ch1Slot2-SL | Ch1Slot2-RR | ||||||
| 0F8h | Ch1Slot4-SL | Ch1Slot4-RR | ||||||
| 0E1h ～ 0FFh | Ch2～Ch8 SL/RR | |||||||