CD_ByteCopy (changes)
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CDFSDriver
» SWI Calls
» CD_ByteCopy
CD_ByteCopy
(SWI &41262)
| Entry | |
|---|---|
| R1 | Pointer to source |
| R2 | Pointer to destination |
| R3 | Number of bytes to copy |
| Exit | |
|---|---|
| R1 | Preserved |
| R2 | Preserved |
| R3 | Preserved |
Use
The original purpose of this call is was to provide a fast memory copy routine, providing efficient way of copying any number of bytes, word-aligned or not.
Notes
It is recommended that you do not use this, as the overhead for calling the SWI is probably greater than any possibly possible gain.
See also
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