Buffer_Create (changes)
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BufferManager
» SWI Calls
» Buffer_Create
Buffer_Create
(SWI &42940)
| Entry | |
|---|---|
| R0 | Buffer’s |
| R1 | Size of buffer to be created |
| R2 | Preferred handle for the buffer, or -1 to get the Buffer Manager to generate one |
| Exit | |
|---|---|
| R0 | Buffer handle |
Use
This call claims an area of the RMA and registers it as a buffer. It can hold R1 – 1 bytes at most.
If R2 <> – 1, the given number is checked for uniqueness, if it already exists, a new one is generated.
Notes
Note that you do not need any complicated calculations to write data into the buffer – it’s a simply a block of memory. Get the address with Buffer_GetInfo and write to the buffer.
See also
Buffer Flag Word?Buffer Flags Word
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