OS_Byte 216 (changes)
Showing changes from revision #1 to #2:
Added | Removed | Changed
Programmer's OS Reference SWI Manuals Calls
» Part OS_Byte 15 – SWI Calls
» OS_Byte 216OS
» OS_Byte
» OS_Byte 216
OS_Byte 216
(SWI &06)
| Entry | |
|---|---|
| R0 | 216 (&D8) |
| R1 | EOR value |
| R2 | AND value |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Previous length |
| R2 | Paged mode line count (see OS_Byte 217) |
Use
The purpose of this call is to read or write the count of characters left in the currently active function key definition.
Notes
If this count is non-zero then OS_ReadC is reading from a function key definition rather than the current input stream.
Writing a 0 length will cancel the current function key expansion – the effect of writing any other value is indeterminate.
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.