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OS_UpCall 19
Programmer's Reference Manuals
» Part 15 – SWI Calls
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» OS_UpCall
» OS_UpCall 19
OS_UpCall 19
(SWI &33)
| Entry | |
|---|---|
| R0 | 19 (&13) |
| Exit | |
|---|---|
| R0 | Preserved |
Use
The purpose of this call is to call inform your application that a missing filing medium has been supplied, or that an operation involving one has been cancelled.
Notes
This call is identical to OS_UpCall 4 except that the message pointed to by R1 is displayed. This is useful where there may be some time before another screen update, for example during printing.