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OS_Byte 14
Programmer's Reference Manuals
» Part 15 – SWI Calls
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» OS_Byte
» OS_Byte 14
OS_Byte 14
(SWI &06)
| Entry | |
|---|---|
| R0 | 14 (&0E) |
| R1 | Event Number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Old enable state (0 means was already disabled) |
| R2 | Corrupted |
Use
The purpose of this call is to enable an event.
Notes
This call enables a particular event so that it is being called through the EventV (event vector). A count is maintained of the number of enables and disables set so that multiple routines enabling and disabling events are handled correctly.
An event will only be disabled after equal numbers of disable events and enable event calls have been made.
Events are disabled by calling OS_Byte 13