CD_ReadAudio (changes)
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CDFSDriver
» SWI Calls
» CD_ReadAudio
CD_ReadAudio
(SWI &41266)
| Entry | |
|---|---|
| R0 | Addressing mode |
| R1 | Start address of section to grab |
| R2 | Number of 2352-byte blocks to grab |
| R3 | Pointer to destination buffer (multiple of 256) |
| Bits 0-7: 0 = read PCM, non-zero = reserved | |
| Bits 8-31: Reserved (zero) | |
| R7 | Pointer to CDFS Control Block |
| Exit | |
|---|---|
| - | - |
Use
The purpose of this call is to read audio data from disc, if the sector lies in an audio track.
Notes
Some drives and drivers do not support this, and hence it may fail.CD_Supported can be used to determine whether the drive supports this operation.
See also
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