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Escape Handler
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_ChangeEnvironment
» Escape Handler
Escape Handler
| Entry | |
|---|---|
| R11 | Bit 6 set (implies escape condition) |
| R12 | “workspace” – don’t use the value 1 |
| R13 | FD stack |
| Exit | |
|---|---|
| R12 | 1 set callback |
Use
The purpose of this call is to clear the escape function.
Notes
This is called whenever an escape condition is detected and the escape event is disabled (except for calls to OS_Byte 125 which always call the handler).
OS_Byte 124 and OS_Byte 126 suggest that it is also called with R11 bit 6 clear to clear/acknowledge an escape condition.