A fast and easily customised operating system
for ARM devices
Service_UKWord
Programmer's Reference Manuals
» Part 16 – Service Calls
» Service_UKWord
Service_UKWord
(Service &08)
| Entry | |
|---|---|
| R1 | 8 (&08) |
| R2 | OS_Word number |
| R3 | Pointer to OS_Word data block |
| Exit | |
|---|---|
| All registers preserved to pass on, else | |
| R1 | 0 (claim service) |
Use
This service is issued when an unknown OS_Word code is given.
Notes
WordV? vector should be used in preference to trapping this service.
See also
- WordV?
- OS_Word
- Service Calls