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PCI_MemoryRead
Programmer's Reference Manuals
» Part 15 – SWI Calls
» PCI
» PCI_MemoryRead
PCI_MemoryRead
(SWI &50386)
| Entry | |
|---|---|
| R0 | PCI address |
| R1 | Length of transfer (whole number of words) |
| R2 | Pointer to buffer |
| R4 | Flags |
| Exit | |
|---|---|
| R0 | Preserved ? |
| R1 | Buffer updated |
| R2 | Preserved ? |
| R4 | Preserved ? |
Use
The purpose of this call is to perform a Memory Read cycle of the denoted size.
Notes
The PCI address in R0 can be found by calling PCI_HardwareAddress.