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Merge pull request #24 from Colin-Suckow/master 

Add CDROM controller register table
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Nicolas Noble 2021-07-26 09:48:19 -07:00 committed by GitHub
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docs/cdromdrive.md
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@ -52,6 +52,14 @@
## CDROM Controller I/O Ports
| | 1F801800h | 1F801801h | 1F801802h | 1F801803h |
|---|-------------------|----------------------------------------------------------------|--------------------------------------------------|---------------------------------------------------------------------------|
| 0 | Index/Status (RW) | Response FIFO (R) (Mirror)<br>Command Register (W) | Data FIFO (R)<br>Parameter FIFO (W) | Interrupt Enable Register (R)<br>Request Register (W) |
| 1 | Index/Status (RW) | Response FIFO (R)<br>Sound Map Data Out (W) | Data FIFO (R)<br>Interrupt Enable Register (W) | Interrupt Flag Register (RW) |
| 2 | Index/Status (RW) | Response FIFO (R) (Mirror)<br>Sound Map Coding Info (W) | Data FIFO (R)<br>Left-CD to Left-SPU Volume (W) | Interrupt Enable Register (R) (Mirror)<br>Left-CD to Right-SPU Volume (W) |
| 3 | Index/Status (RW) | Response FIFO (R) (Mirror)<br>Right-CD to Right-SPU Volume (W) | Data FIFO (R)<br>Right-CD to Left-SPU Volume (W) | Interrupt Flag Register (R) (Mirror)<br>Audio Volume Apply Changes (W) |
#### 1F801800h - Index/Status Register (Bit0-1 R/W) (Bit2-7 Read Only)
```
0-1 Index Port 1F801801h-1F801803h index (0..3 = Index0..Index3) (R/W)