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Minor Doc Update

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Wayne Warthen
2020-04-28 10:58:48 -07:00
parent 90e0a99486
commit 36dff411fd
5 changed files with 7 additions and 7 deletions
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Source/Doc/Architecture.md
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@@ -1324,12 +1324,12 @@ Note that not all sounds chips implement 256 volume levels. The
driver will scale the volume to the closest possible level the
chip provides.
### Function 0x52 -- Sound period (SNDPRD)
### Function 0x52 -- Sound Period (SNDPRD)
| _Entry Parameters_
| B: 0x52
| C: Audio Device Unit ID
| HL: period (0000=lowest note, FFFF=highest note)
| HL: Period (0000=lowest note, FFFF=highest note)
| _Returned Values_
| A: Status (0=OK, else error)
@@ -1383,7 +1383,7 @@ HBIOS B=53 C=00 L=69 ; Select Middle C (C4) assuming SN76489
HBIOS B=54 C=00 D=01 ; Play note on Channel 1
```
### Function 0x55 -- Sound Play (SNDQUERY)
### Function 0x55 -- Sound Query (SNDQUERY)
| _Entry Parameters_
| B: 0x54
@@ -1393,7 +1393,7 @@ HBIOS B=54 C=00 D=01 ; Play note on Channel 1
| _Returned Values_
| A: Status (0=OK, else error)
This function will return the status of current pending command or
This function will return the status of the current pending command or
key aspects of the specific Audio Device.
#### SNDQUERY Subfunction 0x01 -- Get count of audio channels supported (SNDQ_CHCNT)
@@ -1443,12 +1443,12 @@ key aspects of the specific Audio Device.
Reports information about the audio device unit specified.
At this stage, only one driver type is supported (SN76489), but is
envisage that more will be added in the future.
envisaged that more will be added in the future.
Register B reports the audio device type (see below).
Registers HL and DE contain relevant port address for the hardware
as such are specific to each device type.
Registers HL and DE contain relevant port addresses for the hardware
specific to each device type.
The currently defined audio device types are: