OS_Byte 126 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Byte 15 – SWI Calls
» OS_Byte 126OS
» OS_Byte
» OS_Byte 126
OS_Byte 126
(SWI &06)
| Entry | |
|---|---|
| R0 | 126 (&7E) |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | 0 if no escape condition |
| 255 if escape condition cleared | |
| R2 | Corrupted |
Use
The purpose of this call is to acknowledge the escape function condition and attempt to clear it.
Notes
If an escape condition exists, it performs the escape condition side effects if these have been enabled with OS_Byte 230, and then calls the escape handler to indicate that the escape has been cleared.
OS_Byte 124 is used to clear the escape condition, and OS_Byte 125 is used to set it.
See also
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