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ym26112 driver

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b1ackmai1er
2022-12-18 20:41:29 +08:00
parent d062b4345d
commit be8177b8a4
4 changed files with 643 additions and 287 deletions
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15
Source/Doc/Architecture.md
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@@ -1398,7 +1398,7 @@ Increase by steps of 4 to select the next corresponding note.
Increase by steps of 48 to select the same note in next octave.
If the driver is able to generate the requested note, a success (0) is
returned, otherwise a non-zero error state will be returned.
returned, otherwise a non-zero error value will be returned.
The sound chip resolution and its oscillator limit the range and
accuracy of the notes played. The typical range of the AY-3-8910
@@ -1443,7 +1443,7 @@ the following HBIOS calls would need to be made:
```
HBIOS B=51 C=00 L=80 ; Set volume to half level
HBIOS B=53 C=00 L=69 ; Select Middle C (C4) assuming SN76489
HBIOS B=53 C=00 HL=152 ; Select Middle C (C4)
HBIOS B=54 C=00 D=01 ; Play note on Channel 1
```
@@ -1518,6 +1518,8 @@ AUDIO ID | Value | Device | Returned registers
SND_SN76489 | 0x01 | SN76489 | E: Left channel port, L: Right channel port
SND_AY38910 | 0x02 | AY-3-8910 | D: Address port, E: Data port
SND_BITMODE | 0x03 | I/O PORT | D: Address port, E: Bit mask
SND_YM2612 | 0x04 | YM2612 | D: Part 0 Address port, E: Part 0 Data port
| | | H: Part 1 Address port, L: Part 1 Data port
### Function 0x56 -- Sound Duration (SNDDUR)
@@ -1547,10 +1549,10 @@ and then return.
| _Exit Results_
| A: Status (0=OK, else error)
| D: Serial Device Type
| E: Serial Device Number
| H: Serial Device Unit Mode
| L: Serial Device Unit I/O Base Address
| D: Sound Device Type
| E: Sound Device Number
| H: Sound Device Unit Mode
| L: Sound Device Unit I/O Base Address
Reports information about the sound device unit specified. Register D
indicates the device type (driver) and register E indicates the physical
@@ -1565,6 +1567,7 @@ _Id_ | _Device Type / Driver_
0x00 | SN76489
0x10 | AY38910
0x20 | BITMODE
0x30 | YM2612
`\clearpage`{=latex}